* [ANNOUNCE] 4.9.312-rt193
@ 2022-05-13 0:46 ` Mark Gross
0 siblings, 0 replies; 8+ messages in thread
From: Mark Gross @ 2022-05-10 23:19 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Danie l Wagner, Tom Zanussi, Clark Williams
Hello RT-list!
I'm pleased to announce the 4.9.312-rt193 stable release.
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
branch: v4.9-rt
Head SHA1: 9fa8a14439281cb467a9bf7bdb8795e52bf2293c
Or to build 4.9.312-rt193 directly, the following patches should be applied:
https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.9.tar.xz
https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.9.312.xz
https://www.kernel.org/pub/linux/kernel/projects/rt/4.9/patch-4.9.312-rt193.patch.xz
You can also build from 4.9.303-rt192 by applying the incremental patch:
https://www.kernel.org/pub/linux/kernel/projects/rt/4.9/incr/patch-4.9.303-rt192-rt193.patch.xz
Signing key fingerprint:
A073 BC64 746A 086C DA24 97C8 F92D 73C9 A31A 1C17
Enjoy!
Mark Gross
Changes from v4.9.303-rt192:
---
Adrian Hunter (2):
perf/core: Fix address filter parser for multiple filters
perf/x86/intel/pt: Fix address filter config for 32-bit kernel
Alan Stern (2):
usb: gadget: Fix use-after-free bug by not setting udc->dev.driver
USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c
Alexander Lobakin (2):
MIPS: smp: fill in sibling and core maps earlier
MIPS: fix fortify panic when copying asm exception handlers
Alexey Galakhov (1):
scsi: mvsas: Add PCI ID of RocketRaid 2640
Alexey Khoroshilov (2):
serial: 8250: fix error handling in of_platform_serial_probe()
NFS: remove unneeded check in decode_devicenotify_args()
Alistair Popple (1):
mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node
Amadeusz Sławiński (1):
ASoC: topology: Allow TLV control to be either read or write
Andrew Price (1):
gfs2: Make sure FITRIM minlen is rounded up to fs block size
Anshuman Khandual (1):
arm64: Add Cortex-X2 CPU part definition
Armin Wolf (1):
hwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING
Arnaldo Carvalho de Melo (1):
tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
Arnd Bergmann (1):
arm64: arch_timer: avoid unused function warning
Baokun Li (3):
jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
jffs2: fix memory leak in jffs2_do_mount_fs
jffs2: fix memory leak in jffs2_scan_medium
Bart Van Assche (1):
RDMA/ib_srp: Fix a deadlock
Benjamin Beichler (1):
mac80211_hwsim: report NOACK frames in tx_status
Bharata B Rao (1):
sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa
Bob Peterson (1):
gfs2: assign rgrp glock before compute_bitstructs
Borislav Petkov (3):
x86/speculation: Merge one test in spectre_v2_user_select_mitigation()
ALSA: usb-audio: Fix undefined behavior due to shift overflowing the constant
brcmfmac: sdio: Fix undefined behavior due to shift overflowing the constant
Brandon Wyman (1):
hwmon: (pmbus) Add Vin unit off handling
Casey Schaufler (1):
Fix incorrect type in assignment of ipv6 port for audit
Chaitanya Kulkarni (1):
loop: use sysfs_emit() in the sysfs xxx show()
Chen-Yu Tsai (2):
pinctrl: pinconf-generic: Print arguments for bias-pull-*
net: stmmac: Fix unset max_speed difference between DT and non-DT platforms
ChenXiaoSong (1):
configfs: fix a race in configfs_{,un}register_subsystem()
Chengming Zhou (1):
kselftest/vm: fix tests build with old libc
Christian Göttsche (1):
selinux: use correct type for context length
Christophe JAILLET (2):
iio: adc: men_z188_adc: Fix a resource leak in an error handling path
scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
Codrin Ciubotariu (1):
ASoC: dmaengine: do not use a NULL prepare_slave_config() callback
Colin Ian King (2):
carl9170: fix missing bit-wise or operator for tx_params
iwlwifi: Fix -EIO error code that is never returned
Corentin Labbe (1):
ARM: dts: rockchip: fix a typo on rk3288 crypto-controller
Daehwan Jung (1):
usb: gadget: rndis: add spinlock for rndis response list
Damien Le Moal (6):
scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands
scsi: pm8001: Fix command initialization in pm80XX_send_read_log()
scsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req()
scsi: pm8001: Fix payload initialization in pm80xx_set_thermal_config()
scsi: pm8001: Fix abort all task initialization
scsi: pm8001: Fix pm8001_mpi_task_abort_resp()
Dan Carpenter (6):
staging: gdm724x: fix use after free in gdm_lte_rx()
usb: gadget: rndis: prevent integer overflow in rndis_set_response()
NFSD: prevent underflow in nfssvc_decode_writeargs()
video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()
media: usb: go7007: s2250-board: fix leak in probe()
USB: storage: ums-realtek: fix error code in rts51x_read_mem()
Daniel González Cabanelas (1):
media: cx88-mpeg: clear interrupt status register before streaming video
Daniele Palmas (2):
USB: serial: option: add Telit LE910R1 compositions
net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990
Darren Hart (1):
ACPI/APEI: Limit printable size of BERT table data
Dave Martin (1):
arm64: capabilities: Update prototype for enable call back
David Heidelberg (1):
ARM: dts: qcom: fix gic_irq_domain_translate warnings for msm8960
David Howells (1):
cifs: Check the IOCB_DIRECT flag, not O_DIRECT
David Matlack (1):
KVM: Prevent module exit until all VMs are freed
Ding Tianhong (2):
clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter
clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure
Dinh Nguyen (1):
net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link
Dirk Müller (1):
lib/raid6/test: fix multiple definition linking error
Dmitry Baryshkov (1):
PM: core: keep irq flags in device_pm_check_callbacks()
Dmitry Torokhov (1):
HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports
Dmytro Bagrii (1):
Revert "USB: serial: ch341: add new Product ID for CH341A"
Dongliang Mu (2):
ntfs: add sanity check on allocation size
media: hdpvr: initialize dev->worker at hdpvr_register_videodev
Duoming Zhou (4):
ax25: Fix NULL pointer dereference in ax25_kill_by_device
drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
net/x25: Fix null-ptr-deref caused by x25_disconnect
drivers: net: slip: fix NPD bug in sl_tx_timeout()
Dāvis Mosāns (1):
crypto: ccp - ccp_dmaengine_unregister release dma channels
Eddie James (1):
USB: serial: pl2303: add IBM device IDs
Emmanuel Gil Peyrot (1):
ARM: fix build error when BPF_SYSCALL is disabled
Eric Anholt (1):
i2c: bcm2835: Avoid clock stretching timeouts
Eric Dumazet (7):
net: __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor friends
sctp: fix kernel-infoleak for SCTP sockets
tcp: make tcp_read_sock() more robust
net/packet: fix slab-out-of-bounds access in packet_recvmsg()
llc: fix netdevice reference leaks in llc_ui_bind()
llc: only change llc->dev when bind() succeeds
netlink: reset network and mac headers in netlink_dump()
Evgeny Novikov (1):
video: fbdev: w100fb: Reset global state
Fabio M. De Francesco (1):
ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
Fangrui Song (1):
arm64: module: remove (NOLOAD) from linker script
Florian Fainelli (1):
net: phy: broadcom: Fix brcm_fet_config_init()
Florian Westphal (2):
netfilter: nf_queue: don't assume sk is full socket
netfilter: nf_queue: fix possible use-after-free
Frank Wunderlich (1):
arm64: dts: broadcom: Fix sata nodename
Gal Pressman (1):
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
George Kennedy (1):
video: fbdev: cirrusfb: check pixclock to avoid divide by zero
Giacomo Guiduzzi (1):
ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec
Giovanni Cabiddu (1):
crypto: qat - disable registration of algorithms
Greg Kroah-Hartman (9):
Linux 4.9.304
Linux 4.9.305
Linux 4.9.306
Linux 4.9.307
Linux 4.9.308
Linux 4.9.309
Linux 4.9.310
Linux 4.9.311
Linux 4.9.312
Guillaume Nault (1):
veth: Ensure eth header is in skb's linear part
Guo Ren (1):
arm64: patch_text: Fixup last cpu should be master
H. Nikolaus Schaller (1):
usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm
Haimin Zhang (2):
af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
jfs: prevent NULL deref in diFree
Hangbin Liu (1):
net/packet: fix packet_sock xmit return value checking
Hangyu Hua (3):
usb: gadget: don't release an existing dev->buf
usb: gadget: clear related members when goto fail
can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
Hans de Goede (2):
Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power()
Input: elan_i2c - fix regulator enable count imbalance after suspend/resume
Harshit Mogalapalli (1):
cifs: potential buffer overflow in handling symlinks
Hector Martin (2):
brcmfmac: firmware: Allocate space for default boardrev in nvram
brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio
Helge Deller (3):
parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel
parisc/unaligned: Fix ldw() and stw() unalignment handlers
video: fbdev: sm712fb: Fix crash in smtcfb_read()
Herbert Xu (1):
crypto: authenc - Fix sleep in atomic context in decrypt_tail
Hongbin Wang (1):
vxlan: fix error return code in vxlan_fdb_append
Hongyu Xie (1):
xhci: Prevent futile URB re-submissions due to incorrect return value.
Hou Wenlong (1):
KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor()
Huang Pei (1):
hamradio: fix macro redefine warning
Hugh Dickins (2):
memfd: fix F_SEAL_WRITE after shmem huge page allocated
mempolicy: mbind_range() set_policy() after vma_merge()
JaeMan Park (1):
mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work
Jakob Koschel (1):
powerpc/sysdev: fix incorrect use to determine if list is empty
James Clark (1):
coresight: Fix TRCCONFIGR.QE sysfs interface
James Morse (20):
arm64: Remove useless UAO IPI and describe how this gets enabled
arm64: entry.S: Add ventry overflow sanity checks
arm64: entry: Make the trampoline cleanup optional
arm64: entry: Free up another register on kpti's tramp_exit path
arm64: entry: Move the trampoline data page before the text page
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
arm64: entry: Don't assume tramp_vectors is the start of the vectors
arm64: entry: Move trampoline macros out of ifdef'd section
arm64: entry: Make the kpti trampoline's kpti sequence optional
arm64: entry: Allow the trampoline text to occupy multiple pages
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
arm64: Move arm64_update_smccc_conduit() out of SSBD ifdef
arm64: entry: Add vectors that have the bhb mitigation sequences
arm64: entry: Add macro for reading symbol addresses from the trampoline
arm64: Add percpu vectors for EL1
KVM: arm64: Add templates for BHB mitigation sequences
arm64: Mitigate spectre style branch history side channels
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
arm64: add ID_AA64ISAR2_EL1 sys register
arm64: Use the clearbhb instruction in mitigations
Jann Horn (2):
efivars: Respect "block" flag in efivar_entry_set_safe()
ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
Jason A. Donenfeld (1):
gcc-plugins: latent_entropy: use /dev/urandom
Jia-Ju Bai (4):
net: chelsio: cxgb3: check the return value of pci_find_capability()
net: qlogic: check the return value of dma_alloc_coherent() in qed_vf_hw_prepare()
atm: firestream: check the return value of ioremap() in fs_init()
memory: emif: check the pointer temp in get_device_details()
Jianglei Nie (1):
scsi: libfc: Fix use after free in fc_exch_abts_resp()
Jiapeng Chong (1):
platform/x86: samsung-laptop: Fix an unsigned comparison which can never be negative
Jiasheng Jiang (17):
soc: fsl: qe: Check of ioremap return value
net: ethernet: lpc_eth: Handle error for clk_enable
atm: eni: Add check for dma_map_single
ASoC: ti: davinci-i2s: Add check for clk_enable()
ALSA: spi: Add check for clk_enable()
ASoC: mxs-saif: Handle errors for clk_enable
ASoC: atmel_ssc_dai: Handle errors for clk_enable
memory: emif: Add check for setup_interrupts
ASoC: wm8350: Handle error for wm8350_register_irq
ASoC: fsi: Add check for clk_enable
mtd: onenand: Check for error irq
ray_cs: Check ioremap return value
power: supply: wm8350-power: Handle error for wm8350_register_irq
power: supply: wm8350-power: Add missing free in free_charger_irq
mfd: mc13xxx: Add check for mc13xxx_irq_request
iio: adc: Add check for devm_request_threaded_irq
rtc: wm8350: Handle error for wm8350_register_irq
Jim Mattson (1):
KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
Jing Yao (2):
video: fbdev: omapfb: panel-dsi-cm: Use sysfs_emit() instead of snprintf()
video: fbdev: omapfb: panel-tpo-td043mtea1: Use sysfs_emit() instead of snprintf()
Jiri Bohac (1):
xfrm: fix MTU regression
Jiri Slaby (2):
mxser: fix xmit_buf leak in activate when LSR == 0xff
serial: samsung_tty: do not unlock port->lock for uart_write_wakeup()
Johan Hovold (3):
firmware: qemu_fw_cfg: fix kobject leak in probe error path
USB: serial: simple: add Nokia phone driver
media: davinci: vpif: fix unbalanced runtime PM get
Jonathan Neuschäfer (2):
clk: loongson1: Terminate clk_div_table with sentinel element
clk: clps711x: Terminate clk_div_table with sentinel element
Jonathan Teh (1):
ALSA: cmipci: Restore aux vol on suspend/resume
Jordy Zomer (2):
nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION
dm ioctl: prevent potential spectre v1 gadget
Josh Poimboeuf (4):
Documentation: Add swapgs description to the Spectre v1 documentation
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
x86/speculation: Warn about Spectre v2 LFENCE mitigation
x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT
José Expósito (3):
Input: clear BTN_RIGHT/MIDDLE on buttonpads
Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
drm/imx: Fix memory leak in imx_pd_connector_get_modes
Juergen Gross (10):
xen/xenbus: don't let xenbus_grant_ring() remove grants in error case
xen/grant-table: add gnttab_try_end_foreign_access()
xen/blkfront: don't use gnttab_query_foreign_access() for mapped status
xen/netfront: don't use gnttab_query_foreign_access() for mapped status
xen/scsifront: don't use gnttab_query_foreign_access() for mapped status
xen/gntalloc: don't use gnttab_query_foreign_access()
xen: remove gnttab_query_foreign_access()
xen/gnttab: fix gnttab_end_foreign_access() without page specified
xen/netfront: react properly to failing gnttab_end_foreign_access_ref()
mm, page_alloc: fix build_zonerefs_node()
Julian Braha (1):
ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE
Kees Cook (2):
etherdevice: Adjust ether_addr* prototypes to silence -Wstringop-overead
ARM: vexpress/spc: Avoid negative array index when !SMP
Khazhismel Kumykov (1):
block/compat_ioctl: fix range check in BLKGETSIZE
Kim Phillips (2):
x86/speculation: Use generic retpoline by default on AMD
x86/speculation: Update link to AMD speculation whitepaper
Krzysztof Kozlowski (3):
ARM: dts: exynos: fix UART3 pins configuration in Exynos5250
ARM: dts: exynos: add missing HDMI supplies on SMDK5250
ARM: dts: exynos: add missing HDMI supplies on SMDK5420
Kuldeep Singh (3):
arm64: dts: ns2: Fix spi-cpol and spi-cpha property
ARM: dts: spear1340: Update serial node properties
ARM: dts: spear13xx: Update SPI dma properties
Kunihiko Hayashi (1):
clk: uniphier: Fix fixed-rate initialization
Lad Prabhakar (1):
can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready
Lars-Peter Clausen (1):
ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB
Leo Ruan (1):
gpu: ipu-v3: Fix dev_dbg frequency output
Liam Beguin (2):
iio: inkern: apply consumer scale on IIO_VAL_INT cases
iio: inkern: make a best effort on offset calculation
Liguang Zhang (1):
PCI: pciehp: Clear cmd_busy bit in polling mode
Lin Ma (1):
nfc: nci: add flush_workqueue to prevent uaf
Linus Lüssing (1):
mac80211: fix potential double free on mesh join
Linus Torvalds (1):
fget: clarify and improve __fget_files() implementation
Lucas Denefle (1):
w1: w1_therm: fixes w1_seq for ds28ea00 sensors
Lucas Wei (1):
fs: sysfs_emit: Remove PAGE_SIZE alignment check
Luiz Augusto von Dentz (1):
Bluetooth: Fix use after free in hci_send_acl
Lukas Bulwahn (1):
Documentation: refer to config RANDOMIZE_BASE for kernel address-space randomization
Lv Yunlong (1):
drbd: Fix five use after free bugs in get_initial_state
Maciej W. Rozycki (1):
DEC: Limit PMAX memory probing to R3k systems
Marc Zyngier (6):
arm64: arch_timer: Add infrastructure for multiple erratum detection methods
arm64: arch_timer: Add erratum handler for CPU-specific capability
arm64: arch_timer: Add workaround for ARM erratum 1188873
arm64: Add silicon-errata.txt entry for ARM erratum 1188873
arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
arm64: Add part number for Neoverse N1
Marek Marczykowski-Górecki (1):
Revert "xen-netback: Check for hotplug-status existence before watching"
Marek Vasut (1):
ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min
Mark Cilissen (1):
ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board
Mark Featherston (1):
gpio: ts4900: Do not set DAT and OE together
Mark Gross (2):
Merge tag 'v4.9.312' into v4.9-rt
Linux 4.9.312-rt193
Mark Rutland (1):
arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()
Martin Povišer (1):
i2c: pasemi: Wait for write xfers to finish
Martin Varghese (1):
openvswitch: Fixed nd target mask field in the flow dump.
Masahiro Yamada (1):
x86/build: Fix compiler support check for CONFIG_RETPOLINE
Mauricio Faria de Oliveira (1):
mm: fix race between MADV_FREE reclaim and blkdev direct IO read
Max Filippov (1):
xtensa: fix DTC warning unit_address_format
Maxim Kiselev (1):
powerpc: dts: t104xrdb: fix phy type for FMAN 4/5
Maxime Ripard (2):
drm/edid: Always set RGB444
drm/edid: Don't clear formats if using deep color
Maximilian Luz (1):
ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3
Miaohe Lin (2):
memblock: use kfree() to release kmalloced memblock regions
mm/mempolicy: fix mpol_new leak in shared_policy_replace
Miaoqian Lin (15):
ethernet: Fix error handling in xemaclite_of_probe
spi: tegra114: Add missing IRQ check in tegra_spi_probe
soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe
ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of
ASoC: mxs: Fix error handling in mxs_sgtl5000_probe
power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init
drm/tegra: Fix reference leak in tegra_dsi_ganged_probe
mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region
clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver
pinctrl: mediatek: Fix missing of_node_put() in mtk_pctrl_init
pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe
pinctrl/rockchip: Add missing of_node_put() in rockchip_pinctrl_probe
dmaengine: imx-sdma: Fix error checking in sdma_event_remap
Michael Chan (1):
bnxt_en: Eliminate unintended link toggle during FW reset
Michael S. Tsirkin (1):
virtio_console: break out of buf poll on remove
Michael Schmitz (1):
video: fbdev: atari: Atari 2 bpp (STe) palette bugfix
Mike Kravetz (1):
selftests/memfd: clean up mapping in mfd_fail_write
Minghao Chi (1):
spi: tegra20: Use of_device_get_match_data()
Mohammad Kabat (1):
net/mlx5: Fix size field in bufferx_reg struct
Muhammad Usama Anjum (1):
selftests/x86: Add validity check and allow field splitting
Nadav Amit (1):
smp: Fix offline cpu check in flush_smp_call_function_queue()
Nathan Chancellor (2):
ARM: Do not use NOCROSSREFS directive with ld.lld
ARM: davinci: da850-evm: Avoid NULL pointer dereference
NeilBrown (2):
SUNRPC: avoid race between mod_timer() and del_timer_sync()
SUNRPC/call_alloc: async tasks mustn't block waiting for memory
Nicolas Escande (1):
mac80211: fix forwarded mesh frames AC & queue selection
Niels Dossche (1):
sfc: extend the locking on mcdi->seqno
Oliver Graute (1):
staging: fbtft: fb_st7789v: reset display before initialization
Oliver Neukum (2):
sr9700: sanity check for packet length
USB: zaurus: support another broken Zaurus
Pablo Neira Ayuso (2):
netfilter: nf_tables: initialize registers in nft_do_chain()
netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options
Paolo Bonzini (1):
mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
Paolo Valerio (1):
openvswitch: fix OOB access in reserve_sfa_size()
Patrick Rudolph (1):
hwmon: (pmbus) Add mutex to regulator ops
Patrick Wang (1):
mm: kmemleak: take a full lowmem check in kmemleak_*_phys()
Paul Blakey (1):
openvswitch: Fix setting ipv6 fields causing hw csum failure
Pavel Kubelun (1):
ARM: dts: qcom: ipq4019: fix sleep clock
Pavel Skripkin (4):
NFC: port100: fix use-after-free in port100_send_complete
Input: aiptek - properly check endpoint type
ath9k_htc: fix uninit value bugs
jfs: fix divide error in dbNextAG
Pawan Gupta (2):
x86/pm: Save the MSR validity status at context setup
x86/speculation: Restore speculation related MSRs during S3 resume
Peter Rosin (1):
i2c: mux: demux-pinctrl: do not deactivate a master that is not active
Peter Xu (1):
mm: don't skip swap entry even if zap_details specified
Peter Zijlstra (3):
x86,bugs: Unconditionally allow spectre_v2=retpoline,amd
x86/speculation: Add eIBRS + Retpoline options
Documentation/hw-vuln: Update spectre doc
Peter Zijlstra (Intel) (1):
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE
Petr Machata (1):
af_netlink: Fix shift out of bounds in group mask calculation
Petr Vorel (1):
crypto: vmx - add missing dependencies
QintaoShen (1):
drm/amdkfd: Check for potential null return of kmalloc_array()
Qiushi Wu (1):
firmware: Fix a reference count leak.
Qu Wenruo (1):
btrfs: unlock newly allocated extent buffer after error
Quinn Tran (1):
scsi: qla2xxx: Fix incorrect reporting of task management failure
Rafael J. Wysocki (2):
ACPICA: Avoid walking the ACPI Namespace if it is not there
ACPI: CPPC: Avoid out of bounds access when parsing _CPC data
Randy Dunlap (20):
net: stmmac: fix return value of __setup handler
net: sxgbe: fix return value of __setup handler
ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions
ARM: Spectre-BHB: provide empty stub for non-config
PM: hibernate: fix __setup handler error handling
PM: suspend: fix return value of __setup handler
clocksource: acpi_pm: fix return value of __setup handler
printk: fix return value of printk.devkmsg __setup handler
TOMOYO: fix __setup handlers return values
MIPS: RB532: fix return value of __setup handler
tty: hvc: fix return value of __setup handler
kgdboc: fix return value of __setup handler
kgdbts: fix return value of __setup handler
mm/mmap: return 1 from stack_guard_gap __setup() handler
mm/memcontrol: return 1 from cgroup.memory __setup() handler
ARM: 9187/1: JIVE: fix return value of __setup handler
scsi: aha152x: Fix aha152x_setup() __setup handler return value
init/main.c: return 1 from handled __setup() functions
virtio_console: eliminate anonymous module_init & module_exit
net: micrel: fix KS8851_MLL Kconfig
Richard Leitner (1):
ARM: tegra: tamonten: Fix I2C3 pad setting
Richard Schleich (1):
ARM: dts: bcm2837: Add the missing L1/L2 cache information
Rob Herring (1):
arm64: Add part number for Arm Cortex-A77
Robert Hancock (2):
serial: 8250: of: Fix mapped region size when using reg-offset property
i2c: xiic: Make bus names unique
Robert Richter (1):
arm64: errata: Provide macro for major and minor cpu revisions
Ronnie Sahlberg (1):
cifs: fix double free race when mount fails in cifs_get_root()
Russell King (Oracle) (8):
ARM: report Spectre v2 status through sysfs
ARM: early traps initialisation
ARM: use LOADADDR() to get load address of sections
ARM: Spectre-BHB workaround
ARM: include unprivileged BPF status in Spectre V2 reporting
ARM: fix co-processor register typo
ARM: fix build warning in proc-v7-bugs.c
ARM: fix Thumb2 regression with Spectre BHB
Sasha Neftin (1):
e1000e: Fix possible overflow in LTR decoding
Sebastian Andrzej Siewior (1):
usb: dwc3: gadget: Let the interrupt handler disable bottom halves.
Sergey Matyukevich (1):
ARC: entry: fix syscall_trace_exit argument
Sergey Shtylyov (2):
ata: pata_hpt37x: disable primary channel on HPT371
ata: pata_hpt37x: fix PCI clock detection
Shengjiu Wang (1):
ASoC: soc-core: skip zero num_dai component in searching dai name
Slark Xiao (1):
USB: serial: option: add support for DW5829e
Souptick Joarder (HPE) (1):
irqchip/nvic: Release nvic_base upon failure
Sreeramya Soratkal (1):
nl80211: Update bss channel on channel switch for P2P_CLIENT
Srinivas Pandruvada (1):
thermal: int340x: Increase bitmap size
Stefano Garzarella (1):
vhost/vsock: don't check owner in vhost_vsock_stop() while releasing
Steven Price (1):
arm/arm64: Provide a wrapper for SMCCC 1.1 calls
Steven Rostedt (Google) (1):
tracefs: Set the group ownership in apply_options() not parse_options()
Suzuki K Poulose (10):
arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35
arm64: capabilities: Move errata work around check on boot CPU
arm64: capabilities: Move errata processing code
arm64: capabilities: Prepare for fine grained capabilities
arm64: capabilities: Add flags to handle the conflicts on late CPU
arm64: capabilities: Clean up midr range helpers
arm64: Add helpers for checking CPU MIDR against a range
arm64: capabilities: Add support for checks based on a list of MIDRs
arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
arm64: Add helper to decode register from instruction
Sven Eckelmann (2):
batman-adv: Request iflink once in batadv-on-batadv check
batman-adv: Don't expect inter-netns unique iflink indices
Sven Schnelle (1):
tracing: Ensure trace buffer is at least 4096 bytes large
Szymon Heidrich (1):
USB: gadget: validate endpoint index for xilinx udc
Tadeusz Struk (2):
net: ipv6: fix skb_over_panic in __ip6_append_data
ext4: limit length to bitmap_maxbytes - blocksize in punch_hole
Takashi Iwai (2):
ALSA: pcm: Add stream lock during PCM reset ioctl operations
ALSA: usb-audio: Clear MIDI port active flag after draining
Takashi Sakamoto (1):
ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction
Taniya Das (1):
clk: qcom: clk-rcg2: Update the frac table for pixel clock
Tao Liu (1):
gso: do not skip outer ip header in case of ipip and net_failover
Theodore Ts'o (3):
ext4: don't BUG if someone dirty pages without asking ext4 first
ext4: fix overhead calculation to account for the reserved gdt blocks
ext4: force overhead calculation if the s_overhead_cluster makes no sense
Tim Chen (1):
Documentation: Add section about CPU vulnerabilities for Spectre
Tim Gardner (1):
video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow
Tom Rix (2):
qed: return status of qed_iov_get_link
qlcnic: dcb: default to returning -EOPNOTSUPP
Tomas Paukrt (1):
crypto: mxs-dcp - Fix scatterlist processing
Tyrel Datwyler (1):
scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024
Ulf Hansson (1):
mmc: host: Return an error when ->enable_sdio_irq() ops is missing
Uwe Kleine-König (2):
pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add()
ARM: mmp: Fix failure to remove sram device
Vincent Mailhol (1):
can: gs_usb: change active_channels's type from atomic_t to u8
Vinod Koul (1):
dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error"
Vitaly Kuznetsov (1):
KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated
Vladimir Oltean (2):
net: dcb: flush lingering app table entries for unregistered devices
net: dcb: disable softirqs in dcbnl_flush_dev()
WANG Chao (1):
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
Wang Hai (1):
video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
Wang Wensheng (1):
ASoC: imx-es8328: Fix error return code in imx_es8328_probe()
Werner Sembach (1):
ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
William Mahon (1):
HID: add mapping for KEY_ALL_APPLICATIONS
Wolfram Sang (1):
i2c: qup: allow COMPILE_TEST
Xiaoke Wang (1):
drm/msm/mdp5: check the return of kzalloc()
Xiaomeng Tong (3):
ALSA: cs4236: fix an incorrect NULL check on list iterator
dma: at_xdmac: fix a missing check on list iterator
ASoC: soc-dapm: fix two incorrect uses of list iterator
Xie Yongji (2):
block: Add a helper to validate the block size
virtio-blk: Use blk_validate_block_size() to validate block size
Xin Long (1):
xfrm: policy: match with both mark and mask on user interfaces
Xiongwei Song (1):
mm: page_alloc: fix building error on -Werror=array-compare
Yajun Deng (1):
netdevice: add the case if dev is NULL
Yan Yan (1):
xfrm: Fix xfrm migrate issues when address family changes
Yang Guang (4):
video: fbdev: omapfb: acx565akm: replace snprintf with sysfs_emit
ptp: replace snprintf with sysfs_emit
scsi: mvsas: Replace snprintf() with sysfs_emit()
scsi: bfa: Replace snprintf() with sysfs_emit()
Yongzhi Liu (1):
dmaengine: shdma: Fix runtime PM imbalance on error
Zekun Shen (1):
ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
Zhang Yi (1):
ext2: correct max file size computing
Zhenzhong Duan (4):
x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant
x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
x86/retpoline: Remove minimal retpoline support
KVM: x86: Fix emulation in writing cr8
Zheyu Ma (4):
net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
ethernet: sun: Free the coherent when failing in probing
video: fbdev: sm712fb: Fix crash in smtcfb_write()
ata: pata_marvell: Check the 'bmdma_addr' beforing reading
Zhihao Cheng (3):
ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
ubi: fastmap: Return error code if memory allocation fails in add_aeb()
Zhou Guanghui (1):
iommu/arm-smmu-v3: fix event handling soft lockup
daniel.starke@siemens.com (2):
tty: n_gsm: fix encoding of control signal octet bit DV
tty: n_gsm: fix proper link termination after failed open
david regan (1):
mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
suresh kumar (1):
net-sysfs: add check for netdevice being present to speed_show
---
Documentation/arm64/silicon-errata.txt | 1 +
Documentation/hw-vuln/index.rst | 1 +
Documentation/hw-vuln/spectre.rst | 785 +++++++++++++++++++++
Documentation/kernel-parameters.txt | 17 +-
Makefile | 2 +-
arch/arc/kernel/entry.S | 1 +
arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 2 +-
arch/arm/boot/dts/exynos5250-smdk5250.dts | 3 +
arch/arm/boot/dts/exynos5420-smdk5420.dts | 3 +
arch/arm/boot/dts/qcom-ipq4019.dtsi | 3 +-
arch/arm/boot/dts/qcom-msm8960.dtsi | 8 +-
arch/arm/boot/dts/rk3288.dtsi | 2 +-
arch/arm/boot/dts/spear1340.dtsi | 6 +-
arch/arm/boot/dts/spear13xx.dtsi | 6 +-
arch/arm/boot/dts/tegra20-tamonten.dtsi | 6 +-
arch/arm/include/asm/assembler.h | 10 +
arch/arm/include/asm/kvm_host.h | 5 +
arch/arm/include/asm/spectre.h | 38 +
arch/arm/kernel/Makefile | 2 +
arch/arm/kernel/entry-armv.S | 79 ++-
arch/arm/kernel/entry-common.S | 24 +
arch/arm/kernel/spectre.c | 71 ++
arch/arm/kernel/traps.c | 65 +-
arch/arm/kernel/vmlinux-xip.lds.S | 45 +-
arch/arm/kernel/vmlinux.lds.S | 45 +-
arch/arm/kvm/psci.c | 4 +
arch/arm/mach-davinci/board-da850-evm.c | 4 +-
arch/arm/mach-mmp/sram.c | 22 +-
arch/arm/mach-s3c24xx/mach-jive.c | 6 +-
arch/arm/mach-vexpress/spc.c | 2 +-
arch/arm/mm/Kconfig | 11 +
arch/arm/mm/mmu.c | 2 +
arch/arm/mm/proc-v7-bugs.c | 199 +++++-
arch/arm64/Kconfig | 24 +
arch/arm64/boot/dts/broadcom/bcm2837.dtsi | 49 ++
arch/arm64/boot/dts/broadcom/ns2-svk.dts | 8 +-
arch/arm64/boot/dts/broadcom/ns2.dtsi | 2 +-
arch/arm64/include/asm/arch_timer.h | 44 +-
arch/arm64/include/asm/assembler.h | 34 +
arch/arm64/include/asm/cpu.h | 1 +
arch/arm64/include/asm/cpucaps.h | 4 +-
arch/arm64/include/asm/cpufeature.h | 232 +++++-
arch/arm64/include/asm/cputype.h | 63 ++
arch/arm64/include/asm/fixmap.h | 6 +-
arch/arm64/include/asm/insn.h | 2 +
arch/arm64/include/asm/kvm_host.h | 4 +
arch/arm64/include/asm/kvm_mmu.h | 2 +-
arch/arm64/include/asm/mmu.h | 8 +-
arch/arm64/include/asm/processor.h | 6 +-
arch/arm64/include/asm/sections.h | 6 +
arch/arm64/include/asm/sysreg.h | 5 +
arch/arm64/include/asm/vectors.h | 74 ++
arch/arm64/kernel/bpi.S | 55 ++
arch/arm64/kernel/cpu_errata.c | 595 +++++++++++++---
arch/arm64/kernel/cpufeature.c | 167 +++--
arch/arm64/kernel/cpuinfo.c | 1 +
arch/arm64/kernel/entry.S | 197 ++++--
arch/arm64/kernel/fpsimd.c | 1 +
arch/arm64/kernel/insn.c | 33 +-
arch/arm64/kernel/module.lds | 2 +-
arch/arm64/kernel/smp.c | 6 -
arch/arm64/kernel/traps.c | 4 +-
arch/arm64/kernel/vmlinux.lds.S | 2 +-
arch/arm64/kvm/hyp/hyp-entry.S | 4 +
arch/arm64/kvm/hyp/switch.c | 9 +-
arch/arm64/mm/fault.c | 17 +-
arch/arm64/mm/mmu.c | 11 +-
arch/mips/dec/prom/Makefile | 2 +-
arch/mips/include/asm/dec/prom.h | 15 +-
arch/mips/include/asm/setup.h | 2 +-
arch/mips/kernel/smp.c | 6 +-
arch/mips/kernel/traps.c | 22 +-
arch/mips/rb532/devices.c | 6 +-
arch/parisc/kernel/unaligned.c | 14 +-
arch/powerpc/boot/dts/fsl/t104xrdb.dtsi | 4 +-
arch/powerpc/sysdev/fsl_gtm.c | 4 +-
arch/x86/Kconfig | 4 -
arch/x86/Makefile | 11 +-
arch/x86/events/intel/pt.c | 2 +-
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/include/asm/nospec-branch.h | 41 +-
arch/x86/kernel/acpi/boot.c | 24 +
arch/x86/kernel/cpu/bugs.c | 225 ++++--
arch/x86/kvm/emulate.c | 14 +-
arch/x86/kvm/hyperv.c | 15 +
arch/x86/kvm/lapic.c | 5 +-
arch/x86/kvm/pmu_amd.c | 8 +-
arch/x86/power/cpu.c | 21 +-
arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi | 8 +-
arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi | 8 +-
arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi | 4 +-
block/compat_ioctl.c | 2 +-
crypto/authenc.c | 2 +-
drivers/acpi/acpica/nswalk.c | 3 +
drivers/acpi/apei/bert.c | 8 +-
drivers/acpi/battery.c | 12 +
drivers/acpi/cppc_acpi.c | 5 +
drivers/acpi/video_detect.c | 75 ++
drivers/ata/pata_hpt37x.c | 18 +-
drivers/ata/pata_marvell.c | 2 +
drivers/atm/eni.c | 2 +
drivers/atm/firestream.c | 2 +
drivers/base/power/main.c | 6 +-
drivers/block/drbd/drbd_int.h | 8 +-
drivers/block/drbd/drbd_nl.c | 41 +-
drivers/block/drbd/drbd_state.c | 18 +-
drivers/block/drbd/drbd_state_change.h | 8 +-
drivers/block/loop.c | 10 +-
drivers/block/virtio_blk.c | 12 +-
drivers/block/xen-blkfront.c | 67 +-
drivers/char/virtio_console.c | 15 +-
drivers/clk/clk-clps711x.c | 2 +
drivers/clk/loongson1/clk-loongson1c.c | 1 +
drivers/clk/qcom/clk-rcg2.c | 1 +
drivers/clk/tegra/clk-emc.c | 1 +
drivers/clk/uniphier/clk-uniphier-fixed-rate.c | 1 +
drivers/clocksource/Kconfig | 4 +
drivers/clocksource/acpi_pm.c | 6 +-
drivers/clocksource/arm_arch_timer.c | 192 ++++-
drivers/crypto/ccp/ccp-dmaengine.c | 16 +
drivers/crypto/mxs-dcp.c | 2 +-
drivers/crypto/qat/qat_common/qat_crypto.c | 8 +
drivers/crypto/vmx/Kconfig | 4 +
drivers/dma/at_xdmac.c | 12 +-
drivers/dma/imx-sdma.c | 4 +-
drivers/firmware/efi/vars.c | 5 +-
drivers/firmware/psci.c | 15 +
drivers/firmware/qemu_fw_cfg.c | 10 +-
drivers/gpio/gpio-ts4900.c | 24 +-
drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +
drivers/gpu/drm/drm_edid.c | 10 +-
drivers/gpu/drm/imx/parallel-display.c | 4 +-
drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c | 3 +
drivers/gpu/drm/tegra/dsi.c | 4 +-
drivers/gpu/ipu-v3/ipu-di.c | 5 +-
drivers/hid/hid-debug.c | 4 +-
drivers/hid/hid-input.c | 2 +
drivers/hid/i2c-hid/i2c-hid-core.c | 32 +-
drivers/hwmon/pmbus/pmbus.h | 1 +
drivers/hwmon/pmbus/pmbus_core.c | 18 +-
drivers/hwmon/sch56xx-common.c | 2 +-
.../hwtracing/coresight/coresight-etm4x-sysfs.c | 8 +-
drivers/i2c/busses/Kconfig | 2 +-
drivers/i2c/busses/i2c-bcm2835.c | 11 +
drivers/i2c/busses/i2c-pasemi.c | 6 +
drivers/i2c/busses/i2c-xiic.c | 3 +-
drivers/i2c/muxes/i2c-demux-pinctrl.c | 5 +-
drivers/iio/adc/men_z188_adc.c | 9 +-
drivers/iio/adc/twl6030-gpadc.c | 2 +
drivers/iio/inkern.c | 34 +-
drivers/infiniband/ulp/srp/ib_srp.c | 6 +-
drivers/input/mouse/elan_i2c_core.c | 64 +-
drivers/input/tablet/aiptek.c | 10 +-
drivers/iommu/arm-smmu-v3.c | 1 +
drivers/irqchip/irq-nvic.c | 2 +
drivers/md/dm-ioctl.c | 2 +
drivers/media/pci/cx88/cx88-mpeg.c | 3 +
drivers/media/platform/davinci/vpif.c | 1 +
drivers/media/usb/go7007/s2250-board.c | 10 +-
drivers/media/usb/hdpvr/hdpvr-video.c | 4 +-
drivers/memory/emif.c | 8 +-
drivers/mfd/asic3.c | 10 +-
drivers/mfd/mc13xxx-core.c | 4 +-
drivers/misc/kgdbts.c | 4 +-
drivers/mmc/core/host.c | 15 +-
drivers/mtd/nand/brcmnand/brcmnand.c | 2 +-
drivers/mtd/onenand/generic.c | 7 +-
drivers/mtd/ubi/fastmap.c | 28 +-
drivers/net/arcnet/com20020-pci.c | 3 +
drivers/net/can/rcar/rcar_canfd.c | 6 +-
drivers/net/can/usb/ems_usb.c | 1 -
drivers/net/can/usb/gs_usb.c | 10 +-
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 4 +-
drivers/net/ethernet/chelsio/cxgb3/t3_hw.c | 2 +
drivers/net/ethernet/intel/e1000e/ich8lan.c | 4 +-
.../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 2 +-
drivers/net/ethernet/micrel/Kconfig | 1 +
drivers/net/ethernet/nxp/lpc_eth.c | 5 +-
drivers/net/ethernet/qlogic/qed/qed_sriov.c | 18 +-
drivers/net/ethernet/qlogic/qed/qed_vf.c | 7 +
drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h | 10 +-
drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 6 +-
drivers/net/ethernet/sfc/mcdi.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c | 8 -
drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.h | 4 +
.../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 13 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +-
.../net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 +-
drivers/net/ethernet/sun/sunhme.c | 6 +-
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 4 +-
drivers/net/hamradio/6pack.c | 4 +-
drivers/net/hamradio/mkiss.c | 2 +
drivers/net/phy/broadcom.c | 21 +
drivers/net/slip/slip.c | 2 +-
drivers/net/usb/cdc_ether.c | 12 +
drivers/net/usb/cdc_mbim.c | 5 +
drivers/net/usb/sr9700.c | 2 +-
drivers/net/usb/zaurus.c | 12 +
drivers/net/veth.c | 2 +-
drivers/net/vxlan.c | 4 +-
drivers/net/wireless/ath/ath5k/eeprom.c | 3 +
drivers/net/wireless/ath/ath9k/htc_hst.c | 5 +
drivers/net/wireless/ath/carl9170/main.c | 2 +-
.../broadcom/brcm80211/brcmfmac/firmware.c | 2 +
.../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 48 +-
.../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c | 2 +-
drivers/net/wireless/mac80211_hwsim.c | 13 +
drivers/net/wireless/ray_cs.c | 6 +
drivers/net/xen-netback/xenbus.c | 12 +-
drivers/net/xen-netfront.c | 54 +-
drivers/nfc/port100.c | 2 +
drivers/nfc/st21nfca/se.c | 10 +
drivers/pci/hotplug/pciehp_hpc.c | 2 +
drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 2 +
drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +-
drivers/pinctrl/pinconf-generic.c | 6 +-
drivers/pinctrl/pinctrl-rockchip.c | 2 +
drivers/platform/x86/samsung-laptop.c | 2 -
drivers/power/supply/ab8500_fg.c | 4 +-
drivers/power/supply/wm8350_power.c | 97 ++-
drivers/ptp/ptp_sysfs.c | 4 +-
drivers/pwm/pwm-lpc18xx-sct.c | 20 +-
drivers/remoteproc/qcom_wcnss.c | 1 +
drivers/rtc/rtc-wm8350.c | 11 +-
drivers/scsi/aha152x.c | 6 +-
drivers/scsi/bfa/bfad_attr.c | 26 +-
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +-
drivers/scsi/libfc/fc_exch.c | 1 +
drivers/scsi/libsas/sas_ata.c | 2 +-
drivers/scsi/mvsas/mv_init.c | 5 +-
drivers/scsi/pm8001/pm8001_hwi.c | 13 +-
drivers/scsi/pm8001/pm80xx_hwi.c | 11 +-
drivers/scsi/qla2xxx/qla_isr.c | 1 +
drivers/scsi/xen-scsifront.c | 3 +-
drivers/scsi/zorro7xx.c | 2 +
drivers/soc/fsl/qe/qe_io.c | 2 +
drivers/soc/ti/wkup_m3_ipc.c | 4 +-
drivers/spi/spi-tegra114.c | 4 +
drivers/spi/spi-tegra20-slink.c | 8 +-
drivers/staging/fbtft/fb_st7789v.c | 2 +
drivers/staging/gdm724x/gdm_lte.c | 5 +-
drivers/thermal/int340x_thermal/int3400_thermal.c | 2 +-
drivers/tty/hvc/hvc_iucv.c | 4 +-
drivers/tty/mxser.c | 15 +-
drivers/tty/n_gsm.c | 4 +-
drivers/tty/serial/8250/8250_of.c | 30 +-
drivers/tty/serial/kgdboc.c | 6 +-
drivers/tty/serial/samsung.c | 5 +-
drivers/usb/dwc3/dwc3-omap.c | 2 +-
drivers/usb/dwc3/gadget.c | 2 +
drivers/usb/gadget/function/rndis.c | 9 +
drivers/usb/gadget/function/rndis.h | 1 +
drivers/usb/gadget/legacy/inode.c | 10 +-
drivers/usb/gadget/udc/core.c | 3 -
drivers/usb/gadget/udc/udc-xilinx.c | 6 +
drivers/usb/host/xhci.c | 9 +-
drivers/usb/serial/Kconfig | 1 +
drivers/usb/serial/ch341.c | 1 -
drivers/usb/serial/option.c | 12 +
drivers/usb/serial/pl2303.c | 1 +
drivers/usb/serial/pl2303.h | 3 +
drivers/usb/serial/usb-serial-simple.c | 7 +
drivers/usb/storage/ene_ub6250.c | 155 ++--
drivers/usb/storage/realtek_cr.c | 2 +-
drivers/vhost/vsock.c | 21 +-
drivers/video/fbdev/atafb.c | 12 +-
drivers/video/fbdev/cirrusfb.c | 16 +-
drivers/video/fbdev/core/fbcvt.c | 53 +-
drivers/video/fbdev/nvidia/nv_i2c.c | 2 +-
.../fbdev/omap2/omapfb/displays/connector-dvi.c | 1 +
.../fbdev/omap2/omapfb/displays/panel-dsi-cm.c | 8 +-
.../omap2/omapfb/displays/panel-sony-acx565akm.c | 2 +-
.../omap2/omapfb/displays/panel-tpo-td043mtea1.c | 4 +-
drivers/video/fbdev/sm712fb.c | 46 +-
drivers/video/fbdev/smscufx.c | 3 +-
drivers/video/fbdev/w100fb.c | 15 +-
drivers/w1/slaves/w1_therm.c | 8 +-
drivers/xen/gntalloc.c | 25 +-
drivers/xen/grant-table.c | 59 +-
drivers/xen/xenbus/xenbus_client.c | 24 +-
fs/btrfs/extent-tree.c | 1 +
fs/cifs/cifsfs.c | 3 +-
fs/cifs/link.c | 3 +
fs/configfs/dir.c | 14 +
fs/ext2/super.c | 6 +-
fs/ext4/inode.c | 36 +-
fs/ext4/super.c | 19 +-
fs/file.c | 73 +-
fs/gfs2/rgrp.c | 12 +-
fs/jffs2/build.c | 4 +-
fs/jffs2/fs.c | 2 +-
fs/jffs2/scan.c | 6 +-
fs/jfs/inode.c | 3 +-
fs/jfs/jfs_dmap.c | 7 +
fs/nfs/callback_xdr.c | 4 -
fs/nfsd/nfsproc.c | 2 +-
fs/nfsd/xdr.h | 2 +-
fs/ntfs/inode.c | 4 +
fs/sysfs/file.c | 3 +-
fs/tracefs/inode.c | 5 +-
fs/ubifs/dir.c | 2 +
fs/ubifs/ioctl.c | 2 +-
include/linux/arm-smccc.h | 81 +++
include/linux/blkdev.h | 8 +
include/linux/bpf.h | 11 +
include/linux/compiler-gcc.h | 2 +-
include/linux/etherdevice.h | 5 +-
include/linux/mlx5/mlx5_ifc.h | 4 +-
include/linux/module.h | 2 +-
include/linux/netdevice.h | 6 +-
include/net/checksum.h | 5 +
include/net/netfilter/nf_queue.h | 2 +-
include/net/xfrm.h | 9 +-
include/uapi/linux/input-event-codes.h | 3 +-
include/xen/grant_table.h | 19 +-
init/main.c | 6 +-
kernel/events/core.c | 3 +
kernel/power/hibernate.c | 2 +-
kernel/power/suspend_test.c | 8 +-
kernel/printk/printk.c | 6 +-
kernel/ptrace.c | 47 +-
kernel/sched/debug.c | 10 -
kernel/smp.c | 2 +-
kernel/sysctl.c | 8 +
kernel/trace/trace.c | 10 +-
lib/Kconfig | 1 -
lib/raid6/test/test.c | 1 -
localversion-rt | 2 +-
mm/kmemleak.c | 8 +-
mm/memblock.c | 10 +-
mm/memcontrol.c | 2 +-
mm/memory.c | 24 +-
mm/mempolicy.c | 9 +-
mm/mmap.c | 2 +-
mm/mremap.c | 3 +
mm/page_alloc.c | 13 +-
mm/rmap.c | 35 +-
mm/shmem.c | 7 +-
net/ax25/af_ax25.c | 7 +
net/batman-adv/hard-interface.c | 13 +-
net/bluetooth/hci_event.c | 3 +-
net/core/net-sysfs.c | 2 +-
net/core/skbuff.c | 4 +-
net/dcb/dcbnl.c | 44 ++
net/ipv4/af_inet.c | 5 +-
net/ipv4/tcp.c | 10 +-
net/ipv6/ip6_offload.c | 2 +
net/ipv6/ip6_output.c | 11 +-
net/key/af_key.c | 6 +-
net/llc/af_llc.c | 49 +-
net/mac80211/cfg.c | 3 -
net/mac80211/rx.c | 4 +-
net/netfilter/nf_conntrack_proto_tcp.c | 17 +-
net/netfilter/nf_queue.c | 23 +-
net/netfilter/nf_tables_core.c | 2 +-
net/netfilter/nfnetlink_queue.c | 12 +-
net/netlink/af_netlink.c | 9 +
net/nfc/nci/core.c | 4 +
net/openvswitch/actions.c | 46 +-
net/openvswitch/flow_netlink.c | 6 +-
net/packet/af_packet.c | 24 +-
net/sctp/sctp_diag.c | 9 +-
net/sunrpc/sched.c | 4 +-
net/sunrpc/xprt.c | 7 +
net/sunrpc/xprtrdma/transport.c | 4 +-
net/wireless/nl80211.c | 3 +-
net/x25/af_x25.c | 11 +-
net/xfrm/xfrm_policy.c | 24 +-
net/xfrm/xfrm_state.c | 8 +-
net/xfrm/xfrm_user.c | 14 +-
scripts/gcc-plugins/latent_entropy_plugin.c | 44 +-
scripts/mod/modpost.c | 2 +-
security/selinux/xfrm.c | 2 +-
security/smack/smack_lsm.c | 2 +-
security/tomoyo/load_policy.c | 4 +-
sound/core/pcm_misc.c | 2 +-
sound/core/pcm_native.c | 4 +
sound/firewire/fcp.c | 4 +-
sound/isa/cs423x/cs4236.c | 8 +-
sound/pci/ac97/ac97_codec.c | 4 +-
sound/pci/cmipci.c | 3 +-
sound/soc/atmel/atmel_ssc_dai.c | 5 +-
sound/soc/atmel/sam9g20_wm8731.c | 1 +
sound/soc/codecs/wm8350.c | 28 +-
sound/soc/davinci/davinci-i2s.c | 5 +-
sound/soc/fsl/imx-es8328.c | 1 +
sound/soc/mxs/mxs-saif.c | 5 +-
sound/soc/mxs/mxs-sgtl5000.c | 3 +
sound/soc/sh/fsi.c | 19 +-
sound/soc/soc-core.c | 2 +-
sound/soc/soc-dapm.c | 6 +-
sound/soc/soc-generic-dmaengine-pcm.c | 6 +-
sound/soc/soc-ops.c | 4 +-
sound/soc/soc-topology.c | 3 +-
sound/spi/at73c213.c | 27 +-
sound/usb/midi.c | 1 +
sound/usb/mixer_quirks.c | 7 +-
sound/usb/usbaudio.h | 2 +-
tools/arch/x86/include/asm/cpufeatures.h | 2 +-
tools/build/feature/Makefile | 2 +-
tools/testing/selftests/memfd/memfd_test.c | 1 +
tools/testing/selftests/vm/userfaultfd.c | 1 +
tools/testing/selftests/x86/check_cc.sh | 2 +-
virt/kvm/kvm_main.c | 13 +
405 files changed, 5390 insertions(+), 1604 deletions(-)
---
diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt
index ac9489fad31b..47df2c25302a 100644
--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
@@ -55,6 +55,7 @@ stable kernels.
| ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 |
| ARM | Cortex-A72 | #853709 | N/A |
| ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 |
+| ARM | Cortex-A76 | #1188873 | ARM64_ERRATUM_1188873 |
| ARM | MMU-500 | #841119,#826419 | N/A |
| | | | |
| Cavium | ThunderX ITS | #22375, #24313 | CAVIUM_ERRATUM_22375 |
diff --git a/Documentation/hw-vuln/index.rst b/Documentation/hw-vuln/index.rst
index b5fbc6ae9d5f..74466ba80167 100644
--- a/Documentation/hw-vuln/index.rst
+++ b/Documentation/hw-vuln/index.rst
@@ -9,6 +9,7 @@ are configurable at compile, boot or run time.
.. toctree::
:maxdepth: 1
+ spectre
l1tf
mds
tsx_async_abort
diff --git a/Documentation/hw-vuln/spectre.rst b/Documentation/hw-vuln/spectre.rst
new file mode 100644
index 000000000000..c6c43ac2ba43
--- /dev/null
+++ b/Documentation/hw-vuln/spectre.rst
@@ -0,0 +1,785 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Spectre Side Channels
+=====================
+
+Spectre is a class of side channel attacks that exploit branch prediction
+and speculative execution on modern CPUs to read memory, possibly
+bypassing access controls. Speculative execution side channel exploits
+do not modify memory but attempt to infer privileged data in the memory.
+
+This document covers Spectre variant 1 and Spectre variant 2.
+
+Affected processors
+-------------------
+
+Speculative execution side channel methods affect a wide range of modern
+high performance processors, since most modern high speed processors
+use branch prediction and speculative execution.
+
+The following CPUs are vulnerable:
+
+ - Intel Core, Atom, Pentium, and Xeon processors
+
+ - AMD Phenom, EPYC, and Zen processors
+
+ - IBM POWER and zSeries processors
+
+ - Higher end ARM processors
+
+ - Apple CPUs
+
+ - Higher end MIPS CPUs
+
+ - Likely most other high performance CPUs. Contact your CPU vendor for details.
+
+Whether a processor is affected or not can be read out from the Spectre
+vulnerability files in sysfs. See :ref:`spectre_sys_info`.
+
+Related CVEs
+------------
+
+The following CVE entries describe Spectre variants:
+
+ ============= ======================= ==========================
+ CVE-2017-5753 Bounds check bypass Spectre variant 1
+ CVE-2017-5715 Branch target injection Spectre variant 2
+ CVE-2019-1125 Spectre v1 swapgs Spectre variant 1 (swapgs)
+ ============= ======================= ==========================
+
+Problem
+-------
+
+CPUs use speculative operations to improve performance. That may leave
+traces of memory accesses or computations in the processor's caches,
+buffers, and branch predictors. Malicious software may be able to
+influence the speculative execution paths, and then use the side effects
+of the speculative execution in the CPUs' caches and buffers to infer
+privileged data touched during the speculative execution.
+
+Spectre variant 1 attacks take advantage of speculative execution of
+conditional branches, while Spectre variant 2 attacks use speculative
+execution of indirect branches to leak privileged memory.
+See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[6] <spec_ref6>`
+:ref:`[7] <spec_ref7>` :ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`.
+
+Spectre variant 1 (Bounds Check Bypass)
+---------------------------------------
+
+The bounds check bypass attack :ref:`[2] <spec_ref2>` takes advantage
+of speculative execution that bypasses conditional branch instructions
+used for memory access bounds check (e.g. checking if the index of an
+array results in memory access within a valid range). This results in
+memory accesses to invalid memory (with out-of-bound index) that are
+done speculatively before validation checks resolve. Such speculative
+memory accesses can leave side effects, creating side channels which
+leak information to the attacker.
+
+There are some extensions of Spectre variant 1 attacks for reading data
+over the network, see :ref:`[12] <spec_ref12>`. However such attacks
+are difficult, low bandwidth, fragile, and are considered low risk.
+
+Note that, despite "Bounds Check Bypass" name, Spectre variant 1 is not
+only about user-controlled array bounds checks. It can affect any
+conditional checks. The kernel entry code interrupt, exception, and NMI
+handlers all have conditional swapgs checks. Those may be problematic
+in the context of Spectre v1, as kernel code can speculatively run with
+a user GS.
+
+Spectre variant 2 (Branch Target Injection)
+-------------------------------------------
+
+The branch target injection attack takes advantage of speculative
+execution of indirect branches :ref:`[3] <spec_ref3>`. The indirect
+branch predictors inside the processor used to guess the target of
+indirect branches can be influenced by an attacker, causing gadget code
+to be speculatively executed, thus exposing sensitive data touched by
+the victim. The side effects left in the CPU's caches during speculative
+execution can be measured to infer data values.
+
+.. _poison_btb:
+
+In Spectre variant 2 attacks, the attacker can steer speculative indirect
+branches in the victim to gadget code by poisoning the branch target
+buffer of a CPU used for predicting indirect branch addresses. Such
+poisoning could be done by indirect branching into existing code,
+with the address offset of the indirect branch under the attacker's
+control. Since the branch prediction on impacted hardware does not
+fully disambiguate branch address and uses the offset for prediction,
+this could cause privileged code's indirect branch to jump to a gadget
+code with the same offset.
+
+The most useful gadgets take an attacker-controlled input parameter (such
+as a register value) so that the memory read can be controlled. Gadgets
+without input parameters might be possible, but the attacker would have
+very little control over what memory can be read, reducing the risk of
+the attack revealing useful data.
+
+One other variant 2 attack vector is for the attacker to poison the
+return stack buffer (RSB) :ref:`[13] <spec_ref13>` to cause speculative
+subroutine return instruction execution to go to a gadget. An attacker's
+imbalanced subroutine call instructions might "poison" entries in the
+return stack buffer which are later consumed by a victim's subroutine
+return instructions. This attack can be mitigated by flushing the return
+stack buffer on context switch, or virtual machine (VM) exit.
+
+On systems with simultaneous multi-threading (SMT), attacks are possible
+from the sibling thread, as level 1 cache and branch target buffer
+(BTB) may be shared between hardware threads in a CPU core. A malicious
+program running on the sibling thread may influence its peer's BTB to
+steer its indirect branch speculations to gadget code, and measure the
+speculative execution's side effects left in level 1 cache to infer the
+victim's data.
+
+Yet another variant 2 attack vector is for the attacker to poison the
+Branch History Buffer (BHB) to speculatively steer an indirect branch
+to a specific Branch Target Buffer (BTB) entry, even if the entry isn't
+associated with the source address of the indirect branch. Specifically,
+the BHB might be shared across privilege levels even in the presence of
+Enhanced IBRS.
+
+Currently the only known real-world BHB attack vector is via
+unprivileged eBPF. Therefore, it's highly recommended to not enable
+unprivileged eBPF, especially when eIBRS is used (without retpolines).
+For a full mitigation against BHB attacks, it's recommended to use
+retpolines (or eIBRS combined with retpolines).
+
+Attack scenarios
+----------------
+
+The following list of attack scenarios have been anticipated, but may
+not cover all possible attack vectors.
+
+1. A user process attacking the kernel
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Spectre variant 1
+~~~~~~~~~~~~~~~~~
+
+ The attacker passes a parameter to the kernel via a register or
+ via a known address in memory during a syscall. Such parameter may
+ be used later by the kernel as an index to an array or to derive
+ a pointer for a Spectre variant 1 attack. The index or pointer
+ is invalid, but bound checks are bypassed in the code branch taken
+ for speculative execution. This could cause privileged memory to be
+ accessed and leaked.
+
+ For kernel code that has been identified where data pointers could
+ potentially be influenced for Spectre attacks, new "nospec" accessor
+ macros are used to prevent speculative loading of data.
+
+Spectre variant 1 (swapgs)
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ An attacker can train the branch predictor to speculatively skip the
+ swapgs path for an interrupt or exception. If they initialize
+ the GS register to a user-space value, if the swapgs is speculatively
+ skipped, subsequent GS-related percpu accesses in the speculation
+ window will be done with the attacker-controlled GS value. This
+ could cause privileged memory to be accessed and leaked.
+
+ For example:
+
+ ::
+
+ if (coming from user space)
+ swapgs
+ mov %gs:<percpu_offset>, %reg
+ mov (%reg), %reg1
+
+ When coming from user space, the CPU can speculatively skip the
+ swapgs, and then do a speculative percpu load using the user GS
+ value. So the user can speculatively force a read of any kernel
+ value. If a gadget exists which uses the percpu value as an address
+ in another load/store, then the contents of the kernel value may
+ become visible via an L1 side channel attack.
+
+ A similar attack exists when coming from kernel space. The CPU can
+ speculatively do the swapgs, causing the user GS to get used for the
+ rest of the speculative window.
+
+Spectre variant 2
+~~~~~~~~~~~~~~~~~
+
+ A spectre variant 2 attacker can :ref:`poison <poison_btb>` the branch
+ target buffer (BTB) before issuing syscall to launch an attack.
+ After entering the kernel, the kernel could use the poisoned branch
+ target buffer on indirect jump and jump to gadget code in speculative
+ execution.
+
+ If an attacker tries to control the memory addresses leaked during
+ speculative execution, he would also need to pass a parameter to the
+ gadget, either through a register or a known address in memory. After
+ the gadget has executed, he can measure the side effect.
+
+ The kernel can protect itself against consuming poisoned branch
+ target buffer entries by using return trampolines (also known as
+ "retpoline") :ref:`[3] <spec_ref3>` :ref:`[9] <spec_ref9>` for all
+ indirect branches. Return trampolines trap speculative execution paths
+ to prevent jumping to gadget code during speculative execution.
+ x86 CPUs with Enhanced Indirect Branch Restricted Speculation
+ (Enhanced IBRS) available in hardware should use the feature to
+ mitigate Spectre variant 2 instead of retpoline. Enhanced IBRS is
+ more efficient than retpoline.
+
+ There may be gadget code in firmware which could be exploited with
+ Spectre variant 2 attack by a rogue user process. To mitigate such
+ attacks on x86, Indirect Branch Restricted Speculation (IBRS) feature
+ is turned on before the kernel invokes any firmware code.
+
+2. A user process attacking another user process
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ A malicious user process can try to attack another user process,
+ either via a context switch on the same hardware thread, or from the
+ sibling hyperthread sharing a physical processor core on simultaneous
+ multi-threading (SMT) system.
+
+ Spectre variant 1 attacks generally require passing parameters
+ between the processes, which needs a data passing relationship, such
+ as remote procedure calls (RPC). Those parameters are used in gadget
+ code to derive invalid data pointers accessing privileged memory in
+ the attacked process.
+
+ Spectre variant 2 attacks can be launched from a rogue process by
+ :ref:`poisoning <poison_btb>` the branch target buffer. This can
+ influence the indirect branch targets for a victim process that either
+ runs later on the same hardware thread, or running concurrently on
+ a sibling hardware thread sharing the same physical core.
+
+ A user process can protect itself against Spectre variant 2 attacks
+ by using the prctl() syscall to disable indirect branch speculation
+ for itself. An administrator can also cordon off an unsafe process
+ from polluting the branch target buffer by disabling the process's
+ indirect branch speculation. This comes with a performance cost
+ from not using indirect branch speculation and clearing the branch
+ target buffer. When SMT is enabled on x86, for a process that has
+ indirect branch speculation disabled, Single Threaded Indirect Branch
+ Predictors (STIBP) :ref:`[4] <spec_ref4>` are turned on to prevent the
+ sibling thread from controlling branch target buffer. In addition,
+ the Indirect Branch Prediction Barrier (IBPB) is issued to clear the
+ branch target buffer when context switching to and from such process.
+
+ On x86, the return stack buffer is stuffed on context switch.
+ This prevents the branch target buffer from being used for branch
+ prediction when the return stack buffer underflows while switching to
+ a deeper call stack. Any poisoned entries in the return stack buffer
+ left by the previous process will also be cleared.
+
+ User programs should use address space randomization to make attacks
+ more difficult (Set /proc/sys/kernel/randomize_va_space = 1 or 2).
+
+3. A virtualized guest attacking the host
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ The attack mechanism is similar to how user processes attack the
+ kernel. The kernel is entered via hyper-calls or other virtualization
+ exit paths.
+
+ For Spectre variant 1 attacks, rogue guests can pass parameters
+ (e.g. in registers) via hyper-calls to derive invalid pointers to
+ speculate into privileged memory after entering the kernel. For places
+ where such kernel code has been identified, nospec accessor macros
+ are used to stop speculative memory access.
+
+ For Spectre variant 2 attacks, rogue guests can :ref:`poison
+ <poison_btb>` the branch target buffer or return stack buffer, causing
+ the kernel to jump to gadget code in the speculative execution paths.
+
+ To mitigate variant 2, the host kernel can use return trampolines
+ for indirect branches to bypass the poisoned branch target buffer,
+ and flushing the return stack buffer on VM exit. This prevents rogue
+ guests from affecting indirect branching in the host kernel.
+
+ To protect host processes from rogue guests, host processes can have
+ indirect branch speculation disabled via prctl(). The branch target
+ buffer is cleared before context switching to such processes.
+
+4. A virtualized guest attacking other guest
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ A rogue guest may attack another guest to get data accessible by the
+ other guest.
+
+ Spectre variant 1 attacks are possible if parameters can be passed
+ between guests. This may be done via mechanisms such as shared memory
+ or message passing. Such parameters could be used to derive data
+ pointers to privileged data in guest. The privileged data could be
+ accessed by gadget code in the victim's speculation paths.
+
+ Spectre variant 2 attacks can be launched from a rogue guest by
+ :ref:`poisoning <poison_btb>` the branch target buffer or the return
+ stack buffer. Such poisoned entries could be used to influence
+ speculation execution paths in the victim guest.
+
+ Linux kernel mitigates attacks to other guests running in the same
+ CPU hardware thread by flushing the return stack buffer on VM exit,
+ and clearing the branch target buffer before switching to a new guest.
+
+ If SMT is used, Spectre variant 2 attacks from an untrusted guest
+ in the sibling hyperthread can be mitigated by the administrator,
+ by turning off the unsafe guest's indirect branch speculation via
+ prctl(). A guest can also protect itself by turning on microcode
+ based mitigations (such as IBPB or STIBP on x86) within the guest.
+
+.. _spectre_sys_info:
+
+Spectre system information
+--------------------------
+
+The Linux kernel provides a sysfs interface to enumerate the current
+mitigation status of the system for Spectre: whether the system is
+vulnerable, and which mitigations are active.
+
+The sysfs file showing Spectre variant 1 mitigation status is:
+
+ /sys/devices/system/cpu/vulnerabilities/spectre_v1
+
+The possible values in this file are:
+
+ .. list-table::
+
+ * - 'Not affected'
+ - The processor is not vulnerable.
+ * - 'Vulnerable: __user pointer sanitization and usercopy barriers only; no swapgs barriers'
+ - The swapgs protections are disabled; otherwise it has
+ protection in the kernel on a case by case base with explicit
+ pointer sanitation and usercopy LFENCE barriers.
+ * - 'Mitigation: usercopy/swapgs barriers and __user pointer sanitization'
+ - Protection in the kernel on a case by case base with explicit
+ pointer sanitation, usercopy LFENCE barriers, and swapgs LFENCE
+ barriers.
+
+However, the protections are put in place on a case by case basis,
+and there is no guarantee that all possible attack vectors for Spectre
+variant 1 are covered.
+
+The spectre_v2 kernel file reports if the kernel has been compiled with
+retpoline mitigation or if the CPU has hardware mitigation, and if the
+CPU has support for additional process-specific mitigation.
+
+This file also reports CPU features enabled by microcode to mitigate
+attack between user processes:
+
+1. Indirect Branch Prediction Barrier (IBPB) to add additional
+ isolation between processes of different users.
+2. Single Thread Indirect Branch Predictors (STIBP) to add additional
+ isolation between CPU threads running on the same core.
+
+These CPU features may impact performance when used and can be enabled
+per process on a case-by-case base.
+
+The sysfs file showing Spectre variant 2 mitigation status is:
+
+ /sys/devices/system/cpu/vulnerabilities/spectre_v2
+
+The possible values in this file are:
+
+ - Kernel status:
+
+ ======================================== =================================
+ 'Not affected' The processor is not vulnerable
+ 'Mitigation: None' Vulnerable, no mitigation
+ 'Mitigation: Retpolines' Use Retpoline thunks
+ 'Mitigation: LFENCE' Use LFENCE instructions
+ 'Mitigation: Enhanced IBRS' Hardware-focused mitigation
+ 'Mitigation: Enhanced IBRS + Retpolines' Hardware-focused + Retpolines
+ 'Mitigation: Enhanced IBRS + LFENCE' Hardware-focused + LFENCE
+ ======================================== =================================
+
+ - Firmware status: Show if Indirect Branch Restricted Speculation (IBRS) is
+ used to protect against Spectre variant 2 attacks when calling firmware (x86 only).
+
+ ========== =============================================================
+ 'IBRS_FW' Protection against user program attacks when calling firmware
+ ========== =============================================================
+
+ - Indirect branch prediction barrier (IBPB) status for protection between
+ processes of different users. This feature can be controlled through
+ prctl() per process, or through kernel command line options. This is
+ an x86 only feature. For more details see below.
+
+ =================== ========================================================
+ 'IBPB: disabled' IBPB unused
+ 'IBPB: always-on' Use IBPB on all tasks
+ 'IBPB: conditional' Use IBPB on SECCOMP or indirect branch restricted tasks
+ =================== ========================================================
+
+ - Single threaded indirect branch prediction (STIBP) status for protection
+ between different hyper threads. This feature can be controlled through
+ prctl per process, or through kernel command line options. This is x86
+ only feature. For more details see below.
+
+ ==================== ========================================================
+ 'STIBP: disabled' STIBP unused
+ 'STIBP: forced' Use STIBP on all tasks
+ 'STIBP: conditional' Use STIBP on SECCOMP or indirect branch restricted tasks
+ ==================== ========================================================
+
+ - Return stack buffer (RSB) protection status:
+
+ ============= ===========================================
+ 'RSB filling' Protection of RSB on context switch enabled
+ ============= ===========================================
+
+Full mitigation might require a microcode update from the CPU
+vendor. When the necessary microcode is not available, the kernel will
+report vulnerability.
+
+Turning on mitigation for Spectre variant 1 and Spectre variant 2
+-----------------------------------------------------------------
+
+1. Kernel mitigation
+^^^^^^^^^^^^^^^^^^^^
+
+Spectre variant 1
+~~~~~~~~~~~~~~~~~
+
+ For the Spectre variant 1, vulnerable kernel code (as determined
+ by code audit or scanning tools) is annotated on a case by case
+ basis to use nospec accessor macros for bounds clipping :ref:`[2]
+ <spec_ref2>` to avoid any usable disclosure gadgets. However, it may
+ not cover all attack vectors for Spectre variant 1.
+
+ Copy-from-user code has an LFENCE barrier to prevent the access_ok()
+ check from being mis-speculated. The barrier is done by the
+ barrier_nospec() macro.
+
+ For the swapgs variant of Spectre variant 1, LFENCE barriers are
+ added to interrupt, exception and NMI entry where needed. These
+ barriers are done by the FENCE_SWAPGS_KERNEL_ENTRY and
+ FENCE_SWAPGS_USER_ENTRY macros.
+
+Spectre variant 2
+~~~~~~~~~~~~~~~~~
+
+ For Spectre variant 2 mitigation, the compiler turns indirect calls or
+ jumps in the kernel into equivalent return trampolines (retpolines)
+ :ref:`[3] <spec_ref3>` :ref:`[9] <spec_ref9>` to go to the target
+ addresses. Speculative execution paths under retpolines are trapped
+ in an infinite loop to prevent any speculative execution jumping to
+ a gadget.
+
+ To turn on retpoline mitigation on a vulnerable CPU, the kernel
+ needs to be compiled with a gcc compiler that supports the
+ -mindirect-branch=thunk-extern -mindirect-branch-register options.
+ If the kernel is compiled with a Clang compiler, the compiler needs
+ to support -mretpoline-external-thunk option. The kernel config
+ CONFIG_RETPOLINE needs to be turned on, and the CPU needs to run with
+ the latest updated microcode.
+
+ On Intel Skylake-era systems the mitigation covers most, but not all,
+ cases. See :ref:`[3] <spec_ref3>` for more details.
+
+ On CPUs with hardware mitigation for Spectre variant 2 (e.g. Enhanced
+ IBRS on x86), retpoline is automatically disabled at run time.
+
+ The retpoline mitigation is turned on by default on vulnerable
+ CPUs. It can be forced on or off by the administrator
+ via the kernel command line and sysfs control files. See
+ :ref:`spectre_mitigation_control_command_line`.
+
+ On x86, indirect branch restricted speculation is turned on by default
+ before invoking any firmware code to prevent Spectre variant 2 exploits
+ using the firmware.
+
+ Using kernel address space randomization (CONFIG_RANDOMIZE_BASE=y
+ and CONFIG_SLAB_FREELIST_RANDOM=y in the kernel configuration) makes
+ attacks on the kernel generally more difficult.
+
+2. User program mitigation
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ User programs can mitigate Spectre variant 1 using LFENCE or "bounds
+ clipping". For more details see :ref:`[2] <spec_ref2>`.
+
+ For Spectre variant 2 mitigation, individual user programs
+ can be compiled with return trampolines for indirect branches.
+ This protects them from consuming poisoned entries in the branch
+ target buffer left by malicious software. Alternatively, the
+ programs can disable their indirect branch speculation via prctl()
+ (See Documentation/spec_ctrl.txt).
+ On x86, this will turn on STIBP to guard against attacks from the
+ sibling thread when the user program is running, and use IBPB to
+ flush the branch target buffer when switching to/from the program.
+
+ Restricting indirect branch speculation on a user program will
+ also prevent the program from launching a variant 2 attack
+ on x86. All sand-boxed SECCOMP programs have indirect branch
+ speculation restricted by default. Administrators can change
+ that behavior via the kernel command line and sysfs control files.
+ See :ref:`spectre_mitigation_control_command_line`.
+
+ Programs that disable their indirect branch speculation will have
+ more overhead and run slower.
+
+ User programs should use address space randomization
+ (/proc/sys/kernel/randomize_va_space = 1 or 2) to make attacks more
+ difficult.
+
+3. VM mitigation
+^^^^^^^^^^^^^^^^
+
+ Within the kernel, Spectre variant 1 attacks from rogue guests are
+ mitigated on a case by case basis in VM exit paths. Vulnerable code
+ uses nospec accessor macros for "bounds clipping", to avoid any
+ usable disclosure gadgets. However, this may not cover all variant
+ 1 attack vectors.
+
+ For Spectre variant 2 attacks from rogue guests to the kernel, the
+ Linux kernel uses retpoline or Enhanced IBRS to prevent consumption of
+ poisoned entries in branch target buffer left by rogue guests. It also
+ flushes the return stack buffer on every VM exit to prevent a return
+ stack buffer underflow so poisoned branch target buffer could be used,
+ or attacker guests leaving poisoned entries in the return stack buffer.
+
+ To mitigate guest-to-guest attacks in the same CPU hardware thread,
+ the branch target buffer is sanitized by flushing before switching
+ to a new guest on a CPU.
+
+ The above mitigations are turned on by default on vulnerable CPUs.
+
+ To mitigate guest-to-guest attacks from sibling thread when SMT is
+ in use, an untrusted guest running in the sibling thread can have
+ its indirect branch speculation disabled by administrator via prctl().
+
+ The kernel also allows guests to use any microcode based mitigation
+ they choose to use (such as IBPB or STIBP on x86) to protect themselves.
+
+.. _spectre_mitigation_control_command_line:
+
+Mitigation control on the kernel command line
+---------------------------------------------
+
+Spectre variant 2 mitigation can be disabled or force enabled at the
+kernel command line.
+
+ nospectre_v1
+
+ [X86,PPC] Disable mitigations for Spectre Variant 1
+ (bounds check bypass). With this option data leaks are
+ possible in the system.
+
+ nospectre_v2
+
+ [X86] Disable all mitigations for the Spectre variant 2
+ (indirect branch prediction) vulnerability. System may
+ allow data leaks with this option, which is equivalent
+ to spectre_v2=off.
+
+
+ spectre_v2=
+
+ [X86] Control mitigation of Spectre variant 2
+ (indirect branch speculation) vulnerability.
+ The default operation protects the kernel from
+ user space attacks.
+
+ on
+ unconditionally enable, implies
+ spectre_v2_user=on
+ off
+ unconditionally disable, implies
+ spectre_v2_user=off
+ auto
+ kernel detects whether your CPU model is
+ vulnerable
+
+ Selecting 'on' will, and 'auto' may, choose a
+ mitigation method at run time according to the
+ CPU, the available microcode, the setting of the
+ CONFIG_RETPOLINE configuration option, and the
+ compiler with which the kernel was built.
+
+ Selecting 'on' will also enable the mitigation
+ against user space to user space task attacks.
+
+ Selecting 'off' will disable both the kernel and
+ the user space protections.
+
+ Specific mitigations can also be selected manually:
+
+ retpoline auto pick between generic,lfence
+ retpoline,generic Retpolines
+ retpoline,lfence LFENCE; indirect branch
+ retpoline,amd alias for retpoline,lfence
+ eibrs enhanced IBRS
+ eibrs,retpoline enhanced IBRS + Retpolines
+ eibrs,lfence enhanced IBRS + LFENCE
+
+ Not specifying this option is equivalent to
+ spectre_v2=auto.
+
+For user space mitigation:
+
+ spectre_v2_user=
+
+ [X86] Control mitigation of Spectre variant 2
+ (indirect branch speculation) vulnerability between
+ user space tasks
+
+ on
+ Unconditionally enable mitigations. Is
+ enforced by spectre_v2=on
+
+ off
+ Unconditionally disable mitigations. Is
+ enforced by spectre_v2=off
+
+ prctl
+ Indirect branch speculation is enabled,
+ but mitigation can be enabled via prctl
+ per thread. The mitigation control state
+ is inherited on fork.
+
+ prctl,ibpb
+ Like "prctl" above, but only STIBP is
+ controlled per thread. IBPB is issued
+ always when switching between different user
+ space processes.
+
+ seccomp
+ Same as "prctl" above, but all seccomp
+ threads will enable the mitigation unless
+ they explicitly opt out.
+
+ seccomp,ibpb
+ Like "seccomp" above, but only STIBP is
+ controlled per thread. IBPB is issued
+ always when switching between different
+ user space processes.
+
+ auto
+ Kernel selects the mitigation depending on
+ the available CPU features and vulnerability.
+
+ Default mitigation:
+ If CONFIG_SECCOMP=y then "seccomp", otherwise "prctl"
+
+ Not specifying this option is equivalent to
+ spectre_v2_user=auto.
+
+ In general the kernel by default selects
+ reasonable mitigations for the current CPU. To
+ disable Spectre variant 2 mitigations, boot with
+ spectre_v2=off. Spectre variant 1 mitigations
+ cannot be disabled.
+
+Mitigation selection guide
+--------------------------
+
+1. Trusted userspace
+^^^^^^^^^^^^^^^^^^^^
+
+ If all userspace applications are from trusted sources and do not
+ execute externally supplied untrusted code, then the mitigations can
+ be disabled.
+
+2. Protect sensitive programs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ For security-sensitive programs that have secrets (e.g. crypto
+ keys), protection against Spectre variant 2 can be put in place by
+ disabling indirect branch speculation when the program is running
+ (See Documentation/spec_ctrl.txt).
+
+3. Sandbox untrusted programs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ Untrusted programs that could be a source of attacks can be cordoned
+ off by disabling their indirect branch speculation when they are run
+ (See Documentation/spec_ctrl.txt).
+ This prevents untrusted programs from polluting the branch target
+ buffer. All programs running in SECCOMP sandboxes have indirect
+ branch speculation restricted by default. This behavior can be
+ changed via the kernel command line and sysfs control files. See
+ :ref:`spectre_mitigation_control_command_line`.
+
+3. High security mode
+^^^^^^^^^^^^^^^^^^^^^
+
+ All Spectre variant 2 mitigations can be forced on
+ at boot time for all programs (See the "on" option in
+ :ref:`spectre_mitigation_control_command_line`). This will add
+ overhead as indirect branch speculations for all programs will be
+ restricted.
+
+ On x86, branch target buffer will be flushed with IBPB when switching
+ to a new program. STIBP is left on all the time to protect programs
+ against variant 2 attacks originating from programs running on
+ sibling threads.
+
+ Alternatively, STIBP can be used only when running programs
+ whose indirect branch speculation is explicitly disabled,
+ while IBPB is still used all the time when switching to a new
+ program to clear the branch target buffer (See "ibpb" option in
+ :ref:`spectre_mitigation_control_command_line`). This "ibpb" option
+ has less performance cost than the "on" option, which leaves STIBP
+ on all the time.
+
+References on Spectre
+---------------------
+
+Intel white papers:
+
+.. _spec_ref1:
+
+[1] `Intel analysis of speculative execution side channels <https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/Intel-Analysis-of-Speculative-Execution-Side-Channels.pdf>`_.
+
+.. _spec_ref2:
+
+[2] `Bounds check bypass <https://software.intel.com/security-software-guidance/software-guidance/bounds-check-bypass>`_.
+
+.. _spec_ref3:
+
+[3] `Deep dive: Retpoline: A branch target injection mitigation <https://software.intel.com/security-software-guidance/insights/deep-dive-retpoline-branch-target-injection-mitigation>`_.
+
+.. _spec_ref4:
+
+[4] `Deep Dive: Single Thread Indirect Branch Predictors <https://software.intel.com/security-software-guidance/insights/deep-dive-single-thread-indirect-branch-predictors>`_.
+
+AMD white papers:
+
+.. _spec_ref5:
+
+[5] `AMD64 technology indirect branch control extension <https://developer.amd.com/wp-content/resources/Architecture_Guidelines_Update_Indirect_Branch_Control.pdf>`_.
+
+.. _spec_ref6:
+
+[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/Managing-Speculation-on-AMD-Processors.pdf>`_.
+
+ARM white papers:
+
+.. _spec_ref7:
+
+[7] `Cache speculation side-channels <https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/download-the-whitepaper>`_.
+
+.. _spec_ref8:
+
+[8] `Cache speculation issues update <https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/latest-updates/cache-speculation-issues-update>`_.
+
+Google white paper:
+
+.. _spec_ref9:
+
+[9] `Retpoline: a software construct for preventing branch-target-injection <https://support.google.com/faqs/answer/7625886>`_.
+
+MIPS white paper:
+
+.. _spec_ref10:
+
+[10] `MIPS: response on speculative execution and side channel vulnerabilities <https://www.mips.com/blog/mips-response-on-speculative-execution-and-side-channel-vulnerabilities/>`_.
+
+Academic papers:
+
+.. _spec_ref11:
+
+[11] `Spectre Attacks: Exploiting Speculative Execution <https://spectreattack.com/spectre.pdf>`_.
+
+.. _spec_ref12:
+
+[12] `NetSpectre: Read Arbitrary Memory over Network <https://arxiv.org/abs/1807.10535>`_.
+
+.. _spec_ref13:
+
+[13] `Spectre Returns! Speculation Attacks using the Return Stack Buffer <https://www.usenix.org/system/files/conference/woot18/woot18-paper-koruyeh.pdf>`_.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 713765521c45..f2b10986ab88 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -751,15 +751,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
loops can be debugged more effectively on production
systems.
- clocksource.arm_arch_timer.fsl-a008585=
- [ARM64]
- Format: <bool>
- Enable/disable the workaround of Freescale/NXP
- erratum A-008585. This can be useful for KVM
- guests, if the guest device tree doesn't show the
- erratum. If unspecified, the workaround is
- enabled based on the device tree.
-
clearcpuid=BITNUM [X86]
Disable CPUID feature X for the kernel. See
arch/x86/include/asm/cpufeatures.h for the valid bit
@@ -4174,8 +4165,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Specific mitigations can also be selected manually:
retpoline - replace indirect branches
- retpoline,generic - google's original retpoline
- retpoline,amd - AMD-specific minimal thunk
+ retpoline,generic - Retpolines
+ retpoline,lfence - LFENCE; indirect branch
+ retpoline,amd - alias for retpoline,lfence
+ eibrs - enhanced IBRS
+ eibrs,retpoline - enhanced IBRS + Retpolines
+ eibrs,lfence - enhanced IBRS + LFENCE
Not specifying this option is equivalent to
spectre_v2=auto.
diff --git a/Makefile b/Makefile
index 27d5e129444e..a9f16c9c9614 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 303
+SUBLEVEL = 312
EXTRAVERSION =
NAME = Roaring Lionus
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 37ad245cf989..fb458623f386 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -191,6 +191,7 @@ tracesys_exit:
st r0, [sp, PT_r0] ; sys call return value in pt_regs
;POST Sys Call Ptrace Hook
+ mov r0, sp ; pt_regs needed
bl @syscall_trace_exit
b ret_from_exception ; NOT ret_from_system_call at is saves r0 which
; we'd done before calling post hook above
diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
index 2f6ab32b5954..7bb09532840f 100644
--- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -257,7 +257,7 @@
};
uart3_data: uart3-data {
- samsung,pins = "gpa1-4", "gpa1-4";
+ samsung,pins = "gpa1-4", "gpa1-5";
samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index f0906d67a107..54e79f6887ff 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -118,6 +118,9 @@
&hdmi {
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ vdd-supply = <&ldo8_reg>;
+ vdd_osc-supply = <&ldo10_reg>;
+ vdd_pll-supply = <&ldo8_reg>;
};
&i2c_0 {
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index aaccd0da41e5..5ab719cf69dd 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -134,6 +134,9 @@
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
+ vdd-supply = <&ldo6_reg>;
+ vdd_osc-supply = <&ldo7_reg>;
+ vdd_pll-supply = <&ldo6_reg>;
};
&hsi2c_4 {
diff --git a/arch/arm/boot/dts/qcom-ipq4019.dtsi b/arch/arm/boot/dts/qcom-ipq4019.dtsi
index 5ee84e3cb3e9..1fd63f485d3b 100644
--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
@@ -93,7 +93,8 @@
clocks {
sleep_clk: sleep_clk {
compatible = "fixed-clock";
- clock-frequency = <32768>;
+ clock-frequency = <32000>;
+ clock-output-names = "gcc_sleep_clk_src";
#clock-cells = <0>;
};
};
diff --git a/arch/arm/boot/dts/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom-msm8960.dtsi
index 288f56e0ccf5..819d0f085f8c 100644
--- a/arch/arm/boot/dts/qcom-msm8960.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8960.dtsi
@@ -139,7 +139,9 @@
reg = <0x108000 0x1000>;
qcom,ipc = <&l2cc 0x8 2>;
- interrupts = <0 19 0>, <0 21 0>, <0 22 0>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 21 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 22 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "ack", "err", "wakeup";
regulators {
@@ -185,7 +187,7 @@
compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
reg = <0x16440000 0x1000>,
<0x16400000 0x1000>;
- interrupts = <0 154 0x0>;
+ interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&gcc GSBI5_UART_CLK>, <&gcc GSBI5_H_CLK>;
clock-names = "core", "iface";
status = "disabled";
@@ -311,7 +313,7 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0x16080000 0x1000>;
- interrupts = <0 147 0>;
+ interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
spi-max-frequency = <24000000>;
cs-gpios = <&msmgpio 8 0>;
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 7b727d738b69..4702aa980ef8 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -918,7 +918,7 @@
status = "disabled";
};
- crypto: cypto-controller@ff8a0000 {
+ crypto: crypto@ff8a0000 {
compatible = "rockchip,rk3288-crypto";
reg = <0xff8a0000 0x4000>;
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi
index 6361cbfcbe5e..ece38b8c450d 100644
--- a/arch/arm/boot/dts/spear1340.dtsi
+++ b/arch/arm/boot/dts/spear1340.dtsi
@@ -141,9 +141,9 @@
reg = <0xb4100000 0x1000>;
interrupts = <0 105 0x4>;
status = "disabled";
- dmas = <&dwdma0 12 0 1>,
- <&dwdma0 13 1 0>;
- dma-names = "tx", "rx";
+ dmas = <&dwdma0 13 0 1>,
+ <&dwdma0 12 1 0>;
+ dma-names = "rx", "tx";
};
thermal@e07008c4 {
diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi
index 9564337c1815..45f5bd8d30f0 100644
--- a/arch/arm/boot/dts/spear13xx.dtsi
+++ b/arch/arm/boot/dts/spear13xx.dtsi
@@ -288,9 +288,9 @@
#size-cells = <0>;
interrupts = <0 31 0x4>;
status = "disabled";
- dmas = <&dwdma0 4 0 0>,
- <&dwdma0 5 0 0>;
- dma-names = "tx", "rx";
+ dmas = <&dwdma0 5 0 0>,
+ <&dwdma0 4 0 0>;
+ dma-names = "rx", "tx";
};
rtc@e0580000 {
diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index a613e3b85b45..29769bf7a11a 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -182,8 +182,8 @@
};
conf_ata {
nvidia,pins = "ata", "atb", "atc", "atd", "ate",
- "cdev1", "cdev2", "dap1", "dtb", "gma",
- "gmb", "gmc", "gmd", "gme", "gpu7",
+ "cdev1", "cdev2", "dap1", "dtb", "dtf",
+ "gma", "gmb", "gmc", "gmd", "gme", "gpu7",
"gpv", "i2cp", "irrx", "irtx", "pta",
"rm", "slxa", "slxk", "spia", "spib",
"uac";
@@ -202,7 +202,7 @@
};
conf_crtp {
nvidia,pins = "crtp", "dap2", "dap3", "dap4",
- "dtc", "dte", "dtf", "gpu", "sdio1",
+ "dtc", "dte", "gpu", "sdio1",
"slxc", "slxd", "spdi", "spdo", "spig",
"uda";
nvidia,pull = <TEGRA_PIN_PULL_NONE>;
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 7d727506096f..2fa3fd30a9d6 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -108,6 +108,16 @@
.endm
#endif
+#if __LINUX_ARM_ARCH__ < 7
+ .macro dsb, args
+ mcr p15, 0, r0, c7, c10, 4
+ .endm
+
+ .macro isb, args
+ mcr p15, 0, r0, c7, c5, 4
+ .endm
+#endif
+
.macro asm_trace_hardirqs_off, save=1
#if defined(CONFIG_TRACE_IRQFLAGS)
.if \save
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 2fda7e905754..82c71a147f21 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -349,4 +349,9 @@ static inline int kvm_arm_have_ssbd(void)
return KVM_SSBD_UNKNOWN;
}
+static inline bool kvm_arm_spectre_bhb_mitigated(void)
+{
+ /* 32bit guests don't need firmware for this */
+ return false;
+}
#endif /* __ARM_KVM_HOST_H__ */
diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h
new file mode 100644
index 000000000000..85f9e538fb32
--- /dev/null
+++ b/arch/arm/include/asm/spectre.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __ASM_SPECTRE_H
+#define __ASM_SPECTRE_H
+
+enum {
+ SPECTRE_UNAFFECTED,
+ SPECTRE_MITIGATED,
+ SPECTRE_VULNERABLE,
+};
+
+enum {
+ __SPECTRE_V2_METHOD_BPIALL,
+ __SPECTRE_V2_METHOD_ICIALLU,
+ __SPECTRE_V2_METHOD_SMC,
+ __SPECTRE_V2_METHOD_HVC,
+ __SPECTRE_V2_METHOD_LOOP8,
+};
+
+enum {
+ SPECTRE_V2_METHOD_BPIALL = BIT(__SPECTRE_V2_METHOD_BPIALL),
+ SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU),
+ SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC),
+ SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC),
+ SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
+};
+
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
+void spectre_v2_update_state(unsigned int state, unsigned int methods);
+#else
+static inline void spectre_v2_update_state(unsigned int state,
+ unsigned int methods)
+{}
+#endif
+
+int spectre_bhb_update_vectors(unsigned int method);
+
+#endif
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 9bddd762880c..1738d5b61eaa 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -100,4 +100,6 @@ endif
obj-$(CONFIG_HAVE_ARM_SMCCC) += smccc-call.o
+obj-$(CONFIG_GENERIC_CPU_VULNERABILITIES) += spectre.o
+
extra-y := $(head-y) vmlinux.lds
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index d723548b461c..4a554d1c45c1 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -1049,12 +1049,11 @@ vector_\name:
sub lr, lr, #\correction
.endif
- @
- @ Save r0, lr_<exception> (parent PC) and spsr_<exception>
- @ (parent CPSR)
- @
+ @ Save r0, lr_<exception> (parent PC)
stmia sp, {r0, lr} @ save r0, lr
- mrs lr, spsr
+
+ @ Save spsr_<exception> (parent CPSR)
+2: mrs lr, spsr
str lr, [sp, #8] @ save spsr
@
@@ -1075,6 +1074,44 @@ vector_\name:
movs pc, lr @ branch to handler in SVC mode
ENDPROC(vector_\name)
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+ .subsection 1
+ .align 5
+vector_bhb_loop8_\name:
+ .if \correction
+ sub lr, lr, #\correction
+ .endif
+
+ @ Save r0, lr_<exception> (parent PC)
+ stmia sp, {r0, lr}
+
+ @ bhb workaround
+ mov r0, #8
+3: b . + 4
+ subs r0, r0, #1
+ bne 3b
+ dsb
+ isb
+ b 2b
+ENDPROC(vector_bhb_loop8_\name)
+
+vector_bhb_bpiall_\name:
+ .if \correction
+ sub lr, lr, #\correction
+ .endif
+
+ @ Save r0, lr_<exception> (parent PC)
+ stmia sp, {r0, lr}
+
+ @ bhb workaround
+ mcr p15, 0, r0, c7, c5, 6 @ BPIALL
+ @ isb not needed due to "movs pc, lr" in the vector stub
+ @ which gives a "context synchronisation".
+ b 2b
+ENDPROC(vector_bhb_bpiall_\name)
+ .previous
+#endif
+
.align 2
@ handler addresses follow this label
1:
@@ -1083,6 +1120,10 @@ ENDPROC(vector_\name)
.section .stubs, "ax", %progbits
@ This must be the first word
.word vector_swi
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+ .word vector_bhb_loop8_swi
+ .word vector_bhb_bpiall_swi
+#endif
vector_rst:
ARM( swi SYS_ERROR0 )
@@ -1197,8 +1238,10 @@ vector_addrexcptn:
* FIQ "NMI" handler
*-----------------------------------------------------------------------------
* Handle a FIQ using the SVC stack allowing FIQ act like NMI on x86
- * systems.
+ * systems. This must be the last vector stub, so lets place it in its own
+ * subsection.
*/
+ .subsection 2
vector_stub fiq, FIQ_MODE, 4
.long __fiq_usr @ 0 (USR_26 / USR_32)
@@ -1231,6 +1274,30 @@ vector_addrexcptn:
W(b) vector_irq
W(b) vector_fiq
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+ .section .vectors.bhb.loop8, "ax", %progbits
+.L__vectors_bhb_loop8_start:
+ W(b) vector_rst
+ W(b) vector_bhb_loop8_und
+ W(ldr) pc, .L__vectors_bhb_loop8_start + 0x1004
+ W(b) vector_bhb_loop8_pabt
+ W(b) vector_bhb_loop8_dabt
+ W(b) vector_addrexcptn
+ W(b) vector_bhb_loop8_irq
+ W(b) vector_bhb_loop8_fiq
+
+ .section .vectors.bhb.bpiall, "ax", %progbits
+.L__vectors_bhb_bpiall_start:
+ W(b) vector_rst
+ W(b) vector_bhb_bpiall_und
+ W(ldr) pc, .L__vectors_bhb_bpiall_start + 0x1008
+ W(b) vector_bhb_bpiall_pabt
+ W(b) vector_bhb_bpiall_dabt
+ W(b) vector_addrexcptn
+ W(b) vector_bhb_bpiall_irq
+ W(b) vector_bhb_bpiall_fiq
+#endif
+
.data
.globl cr_alignment
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 97a93bd9e63d..8799dae53f74 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -147,6 +147,29 @@ ENDPROC(ret_from_fork)
*-----------------------------------------------------------------------------
*/
+ .align 5
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+ENTRY(vector_bhb_loop8_swi)
+ sub sp, sp, #PT_REGS_SIZE
+ stmia sp, {r0 - r12}
+ mov r8, #8
+1: b 2f
+2: subs r8, r8, #1
+ bne 1b
+ dsb
+ isb
+ b 3f
+ENDPROC(vector_bhb_loop8_swi)
+
+ .align 5
+ENTRY(vector_bhb_bpiall_swi)
+ sub sp, sp, #PT_REGS_SIZE
+ stmia sp, {r0 - r12}
+ mcr p15, 0, r8, c7, c5, 6 @ BPIALL
+ isb
+ b 3f
+ENDPROC(vector_bhb_bpiall_swi)
+#endif
.align 5
ENTRY(vector_swi)
#ifdef CONFIG_CPU_V7M
@@ -154,6 +177,7 @@ ENTRY(vector_swi)
#else
sub sp, sp, #PT_REGS_SIZE
stmia sp, {r0 - r12} @ Calling r0 - r12
+3:
ARM( add r8, sp, #S_PC )
ARM( stmdb r8, {sp, lr}^ ) @ Calling sp, lr
THUMB( mov r8, sp )
diff --git a/arch/arm/kernel/spectre.c b/arch/arm/kernel/spectre.c
new file mode 100644
index 000000000000..0dcefc36fb7a
--- /dev/null
+++ b/arch/arm/kernel/spectre.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/bpf.h>
+#include <linux/cpu.h>
+#include <linux/device.h>
+
+#include <asm/spectre.h>
+
+static bool _unprivileged_ebpf_enabled(void)
+{
+#ifdef CONFIG_BPF_SYSCALL
+ return !sysctl_unprivileged_bpf_disabled;
+#else
+ return false;
+#endif
+}
+
+ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "Mitigation: __user pointer sanitization\n");
+}
+
+static unsigned int spectre_v2_state;
+static unsigned int spectre_v2_methods;
+
+void spectre_v2_update_state(unsigned int state, unsigned int method)
+{
+ if (state > spectre_v2_state)
+ spectre_v2_state = state;
+ spectre_v2_methods |= method;
+}
+
+ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ const char *method;
+
+ if (spectre_v2_state == SPECTRE_UNAFFECTED)
+ return sprintf(buf, "%s\n", "Not affected");
+
+ if (spectre_v2_state != SPECTRE_MITIGATED)
+ return sprintf(buf, "%s\n", "Vulnerable");
+
+ if (_unprivileged_ebpf_enabled())
+ return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
+
+ switch (spectre_v2_methods) {
+ case SPECTRE_V2_METHOD_BPIALL:
+ method = "Branch predictor hardening";
+ break;
+
+ case SPECTRE_V2_METHOD_ICIALLU:
+ method = "I-cache invalidation";
+ break;
+
+ case SPECTRE_V2_METHOD_SMC:
+ case SPECTRE_V2_METHOD_HVC:
+ method = "Firmware call";
+ break;
+
+ case SPECTRE_V2_METHOD_LOOP8:
+ method = "History overwrite";
+ break;
+
+ default:
+ method = "Multiple mitigations";
+ break;
+ }
+
+ return sprintf(buf, "Mitigation: %s\n", method);
+}
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index aa316a7562b1..7fca7ece8f97 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -31,6 +31,7 @@
#include <linux/atomic.h>
#include <asm/cacheflush.h>
#include <asm/exception.h>
+#include <asm/spectre.h>
#include <asm/unistd.h>
#include <asm/traps.h>
#include <asm/ptrace.h>
@@ -819,10 +820,59 @@ static inline void __init kuser_init(void *vectors)
}
#endif
+#ifndef CONFIG_CPU_V7M
+static void copy_from_lma(void *vma, void *lma_start, void *lma_end)
+{
+ memcpy(vma, lma_start, lma_end - lma_start);
+}
+
+static void flush_vectors(void *vma, size_t offset, size_t size)
+{
+ unsigned long start = (unsigned long)vma + offset;
+ unsigned long end = start + size;
+
+ flush_icache_range(start, end);
+}
+
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+int spectre_bhb_update_vectors(unsigned int method)
+{
+ extern char __vectors_bhb_bpiall_start[], __vectors_bhb_bpiall_end[];
+ extern char __vectors_bhb_loop8_start[], __vectors_bhb_loop8_end[];
+ void *vec_start, *vec_end;
+
+ if (system_state >= SYSTEM_RUNNING) {
+ pr_err("CPU%u: Spectre BHB workaround too late - system vulnerable\n",
+ smp_processor_id());
+ return SPECTRE_VULNERABLE;
+ }
+
+ switch (method) {
+ case SPECTRE_V2_METHOD_LOOP8:
+ vec_start = __vectors_bhb_loop8_start;
+ vec_end = __vectors_bhb_loop8_end;
+ break;
+
+ case SPECTRE_V2_METHOD_BPIALL:
+ vec_start = __vectors_bhb_bpiall_start;
+ vec_end = __vectors_bhb_bpiall_end;
+ break;
+
+ default:
+ pr_err("CPU%u: unknown Spectre BHB state %d\n",
+ smp_processor_id(), method);
+ return SPECTRE_VULNERABLE;
+ }
+
+ copy_from_lma(vectors_page, vec_start, vec_end);
+ flush_vectors(vectors_page, 0, vec_end - vec_start);
+
+ return SPECTRE_MITIGATED;
+}
+#endif
+
void __init early_trap_init(void *vectors_base)
{
-#ifndef CONFIG_CPU_V7M
- unsigned long vectors = (unsigned long)vectors_base;
extern char __stubs_start[], __stubs_end[];
extern char __vectors_start[], __vectors_end[];
unsigned i;
@@ -843,17 +893,20 @@ void __init early_trap_init(void *vectors_base)
* into the vector page, mapped at 0xffff0000, and ensure these
* are visible to the instruction stream.
*/
- memcpy((void *)vectors, __vectors_start, __vectors_end - __vectors_start);
- memcpy((void *)vectors + 0x1000, __stubs_start, __stubs_end - __stubs_start);
+ copy_from_lma(vectors_base, __vectors_start, __vectors_end);
+ copy_from_lma(vectors_base + 0x1000, __stubs_start, __stubs_end);
kuser_init(vectors_base);
- flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
+ flush_vectors(vectors_base, 0, PAGE_SIZE * 2);
+}
#else /* ifndef CONFIG_CPU_V7M */
+void __init early_trap_init(void *vectors_base)
+{
/*
* on V7-M there is no need to copy the vector table to a dedicated
* memory area. The address is configurable and so a table in the kernel
* image can be used.
*/
-#endif
}
+#endif
diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S
index 37b2a11af345..d80ef8c2bb46 100644
--- a/arch/arm/kernel/vmlinux-xip.lds.S
+++ b/arch/arm/kernel/vmlinux-xip.lds.S
@@ -12,6 +12,19 @@
#include <asm/memory.h>
#include <asm/page.h>
+/*
+ * ld.lld does not support NOCROSSREFS:
+ * https://github.com/ClangBuiltLinux/linux/issues/1609
+ */
+#ifdef CONFIG_LD_IS_LLD
+#define NOCROSSREFS
+#endif
+
+/* Set start/end symbol names to the LMA for the section */
+#define ARM_LMA(sym, section) \
+ sym##_start = LOADADDR(section); \
+ sym##_end = LOADADDR(section) + SIZEOF(section)
+
#define PROC_INFO \
. = ALIGN(4); \
VMLINUX_SYMBOL(__proc_info_begin) = .; \
@@ -148,19 +161,31 @@ SECTIONS
* The vectors and stubs are relocatable code, and the
* only thing that matters is their relative offsets
*/
- __vectors_start = .;
- .vectors 0xffff0000 : AT(__vectors_start) {
- *(.vectors)
+ __vectors_lma = .;
+ OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) {
+ .vectors {
+ *(.vectors)
+ }
+ .vectors.bhb.loop8 {
+ *(.vectors.bhb.loop8)
+ }
+ .vectors.bhb.bpiall {
+ *(.vectors.bhb.bpiall)
+ }
}
- . = __vectors_start + SIZEOF(.vectors);
- __vectors_end = .;
-
- __stubs_start = .;
- .stubs ADDR(.vectors) + 0x1000 : AT(__stubs_start) {
+ ARM_LMA(__vectors, .vectors);
+ ARM_LMA(__vectors_bhb_loop8, .vectors.bhb.loop8);
+ ARM_LMA(__vectors_bhb_bpiall, .vectors.bhb.bpiall);
+ . = __vectors_lma + SIZEOF(.vectors) +
+ SIZEOF(.vectors.bhb.loop8) +
+ SIZEOF(.vectors.bhb.bpiall);
+
+ __stubs_lma = .;
+ .stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) {
*(.stubs)
}
- . = __stubs_start + SIZEOF(.stubs);
- __stubs_end = .;
+ ARM_LMA(__stubs, .stubs);
+ . = __stubs_lma + SIZEOF(.stubs);
PROVIDE(vector_fiq_offset = vector_fiq - ADDR(.vectors));
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index f7f55df0bf7b..0d560a24408f 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -14,6 +14,19 @@
#include <asm/page.h>
#include <asm/pgtable.h>
+/*
+ * ld.lld does not support NOCROSSREFS:
+ * https://github.com/ClangBuiltLinux/linux/issues/1609
+ */
+#ifdef CONFIG_LD_IS_LLD
+#define NOCROSSREFS
+#endif
+
+/* Set start/end symbol names to the LMA for the section */
+#define ARM_LMA(sym, section) \
+ sym##_start = LOADADDR(section); \
+ sym##_end = LOADADDR(section) + SIZEOF(section)
+
#define PROC_INFO \
. = ALIGN(4); \
VMLINUX_SYMBOL(__proc_info_begin) = .; \
@@ -169,19 +182,31 @@ SECTIONS
* The vectors and stubs are relocatable code, and the
* only thing that matters is their relative offsets
*/
- __vectors_start = .;
- .vectors 0xffff0000 : AT(__vectors_start) {
- *(.vectors)
+ __vectors_lma = .;
+ OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) {
+ .vectors {
+ *(.vectors)
+ }
+ .vectors.bhb.loop8 {
+ *(.vectors.bhb.loop8)
+ }
+ .vectors.bhb.bpiall {
+ *(.vectors.bhb.bpiall)
+ }
}
- . = __vectors_start + SIZEOF(.vectors);
- __vectors_end = .;
-
- __stubs_start = .;
- .stubs ADDR(.vectors) + 0x1000 : AT(__stubs_start) {
+ ARM_LMA(__vectors, .vectors);
+ ARM_LMA(__vectors_bhb_loop8, .vectors.bhb.loop8);
+ ARM_LMA(__vectors_bhb_bpiall, .vectors.bhb.bpiall);
+ . = __vectors_lma + SIZEOF(.vectors) +
+ SIZEOF(.vectors.bhb.loop8) +
+ SIZEOF(.vectors.bhb.bpiall);
+
+ __stubs_lma = .;
+ .stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) {
*(.stubs)
}
- . = __stubs_start + SIZEOF(.stubs);
- __stubs_end = .;
+ ARM_LMA(__stubs, .stubs);
+ . = __stubs_lma + SIZEOF(.stubs);
PROVIDE(vector_fiq_offset = vector_fiq - ADDR(.vectors));
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c
index 83365bec04b6..a262c175456d 100644
--- a/arch/arm/kvm/psci.c
+++ b/arch/arm/kvm/psci.c
@@ -431,6 +431,10 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
break;
}
break;
+ case ARM_SMCCC_ARCH_WORKAROUND_3:
+ if (kvm_arm_spectre_bhb_mitigated())
+ val = SMCCC_RET_SUCCESS;
+ break;
}
break;
default:
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 3bdf0d588238..5deafd26c709 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -1043,11 +1043,13 @@ static int __init da850_evm_config_emac(void)
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
- u8 rmii_en = soc_info->emac_pdata->rmii_en;
+ u8 rmii_en;
if (!machine_is_davinci_da850_evm())
return 0;
+ rmii_en = soc_info->emac_pdata->rmii_en;
+
cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
val = __raw_readl(cfg_chip3_base);
diff --git a/arch/arm/mach-mmp/sram.c b/arch/arm/mach-mmp/sram.c
index bf5e64906e65..a41162dc4af4 100644
--- a/arch/arm/mach-mmp/sram.c
+++ b/arch/arm/mach-mmp/sram.c
@@ -75,6 +75,8 @@ static int sram_probe(struct platform_device *pdev)
if (!info)
return -ENOMEM;
+ platform_set_drvdata(pdev, info);
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "no memory resource defined\n");
@@ -110,8 +112,6 @@ static int sram_probe(struct platform_device *pdev)
list_add(&info->node, &sram_bank_list);
mutex_unlock(&sram_lock);
- platform_set_drvdata(pdev, info);
-
dev_info(&pdev->dev, "initialized\n");
return 0;
@@ -130,17 +130,19 @@ static int sram_remove(struct platform_device *pdev)
struct sram_bank_info *info;
info = platform_get_drvdata(pdev);
- if (info == NULL)
- return -ENODEV;
- mutex_lock(&sram_lock);
- list_del(&info->node);
- mutex_unlock(&sram_lock);
+ if (info->sram_size) {
+ mutex_lock(&sram_lock);
+ list_del(&info->node);
+ mutex_unlock(&sram_lock);
+
+ gen_pool_destroy(info->gpool);
+ iounmap(info->sram_virt);
+ kfree(info->pool_name);
+ }
- gen_pool_destroy(info->gpool);
- iounmap(info->sram_virt);
- kfree(info->pool_name);
kfree(info);
+
return 0;
}
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 7d99fe8f6157..5d43733ee7d6 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -240,11 +240,11 @@ static int __init jive_mtdset(char *options)
unsigned long set;
if (options == NULL || options[0] == '\0')
- return 0;
+ return 1;
if (kstrtoul(options, 10, &set)) {
printk(KERN_ERR "failed to parse mtdset=%s\n", options);
- return 0;
+ return 1;
}
switch (set) {
@@ -259,7 +259,7 @@ static int __init jive_mtdset(char *options)
"using default.", set);
}
- return 0;
+ return 1;
}
/* parse the mtdset= option given to the kernel command line */
diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
index 635b0d549487..c16f39614003 100644
--- a/arch/arm/mach-vexpress/spc.c
+++ b/arch/arm/mach-vexpress/spc.c
@@ -584,7 +584,7 @@ static int __init ve_spc_clk_init(void)
}
cluster = topology_physical_package_id(cpu_dev->id);
- if (init_opp_table[cluster])
+ if (cluster < 0 || init_opp_table[cluster])
continue;
if (ve_init_opp_table(cpu_dev))
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 93623627a0b6..5c98074010d2 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -803,6 +803,7 @@ config CPU_BPREDICT_DISABLE
config CPU_SPECTRE
bool
+ select GENERIC_CPU_VULNERABILITIES
config HARDEN_BRANCH_PREDICTOR
bool "Harden the branch predictor against aliasing attacks" if EXPERT
@@ -823,6 +824,16 @@ config HARDEN_BRANCH_PREDICTOR
If unsure, say Y.
+config HARDEN_BRANCH_HISTORY
+ bool "Harden Spectre style attacks against branch history" if EXPERT
+ depends on CPU_SPECTRE
+ default y
+ help
+ Speculation attacks against some high-performance processors can
+ make use of branch history to influence future speculation. When
+ taking an exception, a sequence of branches overwrites the branch
+ history, or branch history is invalidated.
+
config TLS_REG_EMUL
bool
select NEED_KUSER_HELPERS
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 7edc6c3f4bd9..a99e7ebcd004 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -228,12 +228,14 @@ early_param("ecc", early_ecc);
static int __init early_cachepolicy(char *p)
{
pr_warn("cachepolicy kernel parameter not supported without cp15\n");
+ return 0;
}
early_param("cachepolicy", early_cachepolicy);
static int __init noalign_setup(char *__unused)
{
pr_warn("noalign kernel parameter not supported without cp15\n");
+ return 1;
}
__setup("noalign", noalign_setup);
diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
index 9a07916af8dd..1b6e770bc1cd 100644
--- a/arch/arm/mm/proc-v7-bugs.c
+++ b/arch/arm/mm/proc-v7-bugs.c
@@ -7,8 +7,36 @@
#include <asm/cp15.h>
#include <asm/cputype.h>
#include <asm/proc-fns.h>
+#include <asm/spectre.h>
#include <asm/system_misc.h>
+#ifdef CONFIG_ARM_PSCI
+#define SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED 1
+static int __maybe_unused spectre_v2_get_cpu_fw_mitigation_state(void)
+{
+ struct arm_smccc_res res;
+
+ arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
+ ARM_SMCCC_ARCH_WORKAROUND_1, &res);
+
+ switch ((int)res.a0) {
+ case SMCCC_RET_SUCCESS:
+ return SPECTRE_MITIGATED;
+
+ case SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED:
+ return SPECTRE_UNAFFECTED;
+
+ default:
+ return SPECTRE_VULNERABLE;
+ }
+}
+#else
+static int __maybe_unused spectre_v2_get_cpu_fw_mitigation_state(void)
+{
+ return SPECTRE_VULNERABLE;
+}
+#endif
+
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
DEFINE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn);
@@ -37,13 +65,61 @@ static void __maybe_unused call_hvc_arch_workaround_1(void)
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL);
}
-static void cpu_v7_spectre_init(void)
+static unsigned int spectre_v2_install_workaround(unsigned int method)
{
const char *spectre_v2_method = NULL;
int cpu = smp_processor_id();
if (per_cpu(harden_branch_predictor_fn, cpu))
- return;
+ return SPECTRE_MITIGATED;
+
+ switch (method) {
+ case SPECTRE_V2_METHOD_BPIALL:
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ harden_branch_predictor_bpiall;
+ spectre_v2_method = "BPIALL";
+ break;
+
+ case SPECTRE_V2_METHOD_ICIALLU:
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ harden_branch_predictor_iciallu;
+ spectre_v2_method = "ICIALLU";
+ break;
+
+ case SPECTRE_V2_METHOD_HVC:
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ call_hvc_arch_workaround_1;
+ cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
+ spectre_v2_method = "hypervisor";
+ break;
+
+ case SPECTRE_V2_METHOD_SMC:
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ call_smc_arch_workaround_1;
+ cpu_do_switch_mm = cpu_v7_smc_switch_mm;
+ spectre_v2_method = "firmware";
+ break;
+ }
+
+ if (spectre_v2_method)
+ pr_info("CPU%u: Spectre v2: using %s workaround\n",
+ smp_processor_id(), spectre_v2_method);
+
+ return SPECTRE_MITIGATED;
+}
+#else
+static unsigned int spectre_v2_install_workaround(unsigned int method)
+{
+ pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n",
+ smp_processor_id());
+
+ return SPECTRE_VULNERABLE;
+}
+#endif
+
+static void cpu_v7_spectre_v2_init(void)
+{
+ unsigned int state, method = 0;
switch (read_cpuid_part()) {
case ARM_CPU_PART_CORTEX_A8:
@@ -52,29 +128,32 @@ static void cpu_v7_spectre_init(void)
case ARM_CPU_PART_CORTEX_A17:
case ARM_CPU_PART_CORTEX_A73:
case ARM_CPU_PART_CORTEX_A75:
- per_cpu(harden_branch_predictor_fn, cpu) =
- harden_branch_predictor_bpiall;
- spectre_v2_method = "BPIALL";
+ state = SPECTRE_MITIGATED;
+ method = SPECTRE_V2_METHOD_BPIALL;
break;
case ARM_CPU_PART_CORTEX_A15:
case ARM_CPU_PART_BRAHMA_B15:
- per_cpu(harden_branch_predictor_fn, cpu) =
- harden_branch_predictor_iciallu;
- spectre_v2_method = "ICIALLU";
+ state = SPECTRE_MITIGATED;
+ method = SPECTRE_V2_METHOD_ICIALLU;
break;
-#ifdef CONFIG_ARM_PSCI
default:
/* Other ARM CPUs require no workaround */
- if (read_cpuid_implementor() == ARM_CPU_IMP_ARM)
+ if (read_cpuid_implementor() == ARM_CPU_IMP_ARM) {
+ state = SPECTRE_UNAFFECTED;
break;
+ }
/* fallthrough */
- /* Cortex A57/A72 require firmware workaround */
+ /* Cortex A57/A72 require firmware workaround */
case ARM_CPU_PART_CORTEX_A57:
case ARM_CPU_PART_CORTEX_A72: {
struct arm_smccc_res res;
+ state = spectre_v2_get_cpu_fw_mitigation_state();
+ if (state != SPECTRE_MITIGATED)
+ break;
+
if (psci_ops.smccc_version == SMCCC_VERSION_1_0)
break;
@@ -84,10 +163,7 @@ static void cpu_v7_spectre_init(void)
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 != 0)
break;
- per_cpu(harden_branch_predictor_fn, cpu) =
- call_hvc_arch_workaround_1;
- cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
- spectre_v2_method = "hypervisor";
+ method = SPECTRE_V2_METHOD_HVC;
break;
case PSCI_CONDUIT_SMC:
@@ -95,29 +171,97 @@ static void cpu_v7_spectre_init(void)
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 != 0)
break;
- per_cpu(harden_branch_predictor_fn, cpu) =
- call_smc_arch_workaround_1;
- cpu_do_switch_mm = cpu_v7_smc_switch_mm;
- spectre_v2_method = "firmware";
+ method = SPECTRE_V2_METHOD_SMC;
break;
default:
+ state = SPECTRE_VULNERABLE;
break;
}
}
-#endif
}
- if (spectre_v2_method)
- pr_info("CPU%u: Spectre v2: using %s workaround\n",
- smp_processor_id(), spectre_v2_method);
+ if (state == SPECTRE_MITIGATED)
+ state = spectre_v2_install_workaround(method);
+
+ spectre_v2_update_state(state, method);
+}
+
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+static int spectre_bhb_method;
+
+static const char *spectre_bhb_method_name(int method)
+{
+ switch (method) {
+ case SPECTRE_V2_METHOD_LOOP8:
+ return "loop";
+
+ case SPECTRE_V2_METHOD_BPIALL:
+ return "BPIALL";
+
+ default:
+ return "unknown";
+ }
+}
+
+static int spectre_bhb_install_workaround(int method)
+{
+ if (spectre_bhb_method != method) {
+ if (spectre_bhb_method) {
+ pr_err("CPU%u: Spectre BHB: method disagreement, system vulnerable\n",
+ smp_processor_id());
+
+ return SPECTRE_VULNERABLE;
+ }
+
+ if (spectre_bhb_update_vectors(method) == SPECTRE_VULNERABLE)
+ return SPECTRE_VULNERABLE;
+
+ spectre_bhb_method = method;
+ }
+
+ pr_info("CPU%u: Spectre BHB: using %s workaround\n",
+ smp_processor_id(), spectre_bhb_method_name(method));
+
+ return SPECTRE_MITIGATED;
}
#else
-static void cpu_v7_spectre_init(void)
+static int spectre_bhb_install_workaround(int method)
{
+ return SPECTRE_VULNERABLE;
}
#endif
+static void cpu_v7_spectre_bhb_init(void)
+{
+ unsigned int state, method = 0;
+
+ switch (read_cpuid_part()) {
+ case ARM_CPU_PART_CORTEX_A15:
+ case ARM_CPU_PART_BRAHMA_B15:
+ case ARM_CPU_PART_CORTEX_A57:
+ case ARM_CPU_PART_CORTEX_A72:
+ state = SPECTRE_MITIGATED;
+ method = SPECTRE_V2_METHOD_LOOP8;
+ break;
+
+ case ARM_CPU_PART_CORTEX_A73:
+ case ARM_CPU_PART_CORTEX_A75:
+ state = SPECTRE_MITIGATED;
+ method = SPECTRE_V2_METHOD_BPIALL;
+ break;
+
+ default:
+ state = SPECTRE_UNAFFECTED;
+ break;
+ }
+
+ if (state == SPECTRE_MITIGATED)
+ state = spectre_bhb_install_workaround(method);
+
+ spectre_v2_update_state(state, method);
+}
+
static __maybe_unused bool cpu_v7_check_auxcr_set(bool *warned,
u32 mask, const char *msg)
{
@@ -146,16 +290,17 @@ static bool check_spectre_auxcr(bool *warned, u32 bit)
void cpu_v7_ca8_ibe(void)
{
if (check_spectre_auxcr(this_cpu_ptr(&spectre_warned), BIT(6)))
- cpu_v7_spectre_init();
+ cpu_v7_spectre_v2_init();
}
void cpu_v7_ca15_ibe(void)
{
if (check_spectre_auxcr(this_cpu_ptr(&spectre_warned), BIT(0)))
- cpu_v7_spectre_init();
+ cpu_v7_spectre_v2_init();
}
void cpu_v7_bugs_init(void)
{
- cpu_v7_spectre_init();
+ cpu_v7_spectre_v2_init();
+ cpu_v7_spectre_bhb_init();
}
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a478cfbd400b..fa4a8fe0c935 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -442,6 +442,20 @@ config ARM64_ERRATUM_1024718
If unsure, say Y.
+config ARM64_ERRATUM_1188873
+ bool "Cortex-A76: MRC read following MRRC read of specific Generic Timer in AArch32 might give incorrect result"
+ default y
+ depends on COMPAT
+ select ARM_ARCH_TIMER_OOL_WORKAROUND
+ help
+ This option adds work arounds for ARM Cortex-A76 erratum 1188873
+
+ Affected Cortex-A76 cores (r0p0, r1p0, r2p0) could cause
+ register corruption when accessing the timer registers from
+ AArch32 userspace.
+
+ If unsure, say Y.
+
config CAVIUM_ERRATUM_22375
bool "Cavium erratum 22375, 24313"
default y
@@ -786,6 +800,16 @@ config ARM64_SSBD
If unsure, say Y.
+config MITIGATE_SPECTRE_BRANCH_HISTORY
+ bool "Mitigate Spectre style attacks against branch history" if EXPERT
+ default y
+ depends on HARDEN_BRANCH_PREDICTOR || !KVM
+ help
+ Speculation attacks against some high-performance processors can
+ make use of branch history to influence future speculation.
+ When taking an exception from user-space, a sequence of branches
+ or a firmware call overwrites the branch history.
+
menuconfig ARMV8_DEPRECATED
bool "Emulate deprecated/obsolete ARMv8 instructions"
depends on COMPAT
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837.dtsi b/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
index c1f719b7097a..95e3cb38474f 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
@@ -31,12 +31,26 @@
#address-cells = <1>;
#size-cells = <0>;
+ /* Source for d/i-cache-line-size and d/i-cache-sets
+ * https://developer.arm.com/documentation/ddi0500/e/level-1-memory-system
+ * /about-the-l1-memory-system?lang=en
+ *
+ * Source for d/i-cache-size
+ * https://magpi.raspberrypi.com/articles/raspberry-pi-3-specs-benchmarks
+ */
cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000d8>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+ next-level-cache = <&l2>;
};
cpu1: cpu@1 {
@@ -45,6 +59,13 @@
reg = <1>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000e0>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+ next-level-cache = <&l2>;
};
cpu2: cpu@2 {
@@ -53,6 +74,13 @@
reg = <2>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000e8>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+ next-level-cache = <&l2>;
};
cpu3: cpu@3 {
@@ -61,6 +89,27 @@
reg = <3>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000f0>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>; // 32KiB(size)/64(line-size)=512ways/4-way set
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>; // 32KiB(size)/64(line-size)=512ways/2-way set
+ next-level-cache = <&l2>;
+ };
+
+ /* Source for cache-line-size + cache-sets
+ * https://developer.arm.com/documentation/ddi0500
+ * /e/level-2-memory-system/about-the-l2-memory-system?lang=en
+ * Source for cache-size
+ * https://datasheets.raspberrypi.com/cm/cm1-and-cm3-datasheet.pdf
+ */
+ l2: l2-cache0 {
+ compatible = "cache";
+ cache-size = <0x80000>;
+ cache-line-size = <64>;
+ cache-sets = <512>; // 512KiB(size)/64(line-size)=8192ways/16-way set
+ cache-level = <2>;
};
};
};
diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
index b09f3bc5c6c1..58114b842a59 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
+++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
@@ -103,8 +103,8 @@
compatible = "silabs,si3226x";
reg = <0>;
spi-max-frequency = <5000000>;
- spi-cpha = <1>;
- spi-cpol = <1>;
+ spi-cpha;
+ spi-cpol;
pl022,hierarchy = <0>;
pl022,interface = <0>;
pl022,slave-tx-disable = <0>;
@@ -127,8 +127,8 @@
at25,byte-len = <0x8000>;
at25,addr-mode = <2>;
at25,page-size = <64>;
- spi-cpha = <1>;
- spi-cpol = <1>;
+ spi-cpha;
+ spi-cpol;
pl022,hierarchy = <0>;
pl022,interface = <0>;
pl022,slave-tx-disable = <0>;
diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi
index 8a94ec8035d3..83c1718dac29 100644
--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
@@ -514,7 +514,7 @@
};
};
- sata: ahci@663f2000 {
+ sata: sata@663f2000 {
compatible = "brcm,iproc-ahci", "generic-ahci";
reg = <0x663f2000 0x1000>;
reg-names = "ahci";
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index eaa5bbe3fa87..1b0d7e994e0c 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -29,41 +29,35 @@
#include <clocksource/arm_arch_timer.h>
-#if IS_ENABLED(CONFIG_FSL_ERRATUM_A008585)
+#if IS_ENABLED(CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND)
extern struct static_key_false arch_timer_read_ool_enabled;
-#define needs_fsl_a008585_workaround() \
+#define needs_unstable_timer_counter_workaround() \
static_branch_unlikely(&arch_timer_read_ool_enabled)
#else
-#define needs_fsl_a008585_workaround() false
+#define needs_unstable_timer_counter_workaround() false
#endif
-u32 __fsl_a008585_read_cntp_tval_el0(void);
-u32 __fsl_a008585_read_cntv_tval_el0(void);
-u64 __fsl_a008585_read_cntvct_el0(void);
+enum arch_timer_erratum_match_type {
+ ate_match_dt,
+ ate_match_local_cap_id,
+};
-/*
- * The number of retries is an arbitrary value well beyond the highest number
- * of iterations the loop has been observed to take.
- */
-#define __fsl_a008585_read_reg(reg) ({ \
- u64 _old, _new; \
- int _retries = 200; \
- \
- do { \
- _old = read_sysreg(reg); \
- _new = read_sysreg(reg); \
- _retries--; \
- } while (unlikely(_old != _new) && _retries); \
- \
- WARN_ON_ONCE(!_retries); \
- _new; \
-})
+struct arch_timer_erratum_workaround {
+ enum arch_timer_erratum_match_type match_type;
+ const void *id;
+ const char *desc;
+ u32 (*read_cntp_tval_el0)(void);
+ u32 (*read_cntv_tval_el0)(void);
+ u64 (*read_cntvct_el0)(void);
+};
+
+extern const struct arch_timer_erratum_workaround *timer_unstable_counter_workaround;
#define arch_timer_reg_read_stable(reg) \
({ \
u64 _val; \
- if (needs_fsl_a008585_workaround()) \
- _val = __fsl_a008585_read_##reg(); \
+ if (needs_unstable_timer_counter_workaround()) \
+ _val = timer_unstable_counter_workaround->read_##reg();\
else \
_val = read_sysreg(reg); \
_val; \
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 3f85bbcd7e40..a6aaeb871d5f 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -94,6 +94,13 @@
hint #20
.endm
+/*
+ * Clear Branch History instruction
+ */
+ .macro clearbhb
+ hint #22
+ .endm
+
/*
* Sanitise a 64-bit bounded index wrt speculation, returning zero if out
* of bounds.
@@ -494,4 +501,31 @@ alternative_endif
.Ldone\@:
.endm
+ .macro __mitigate_spectre_bhb_loop tmp
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+alternative_cb spectre_bhb_patch_loop_iter
+ mov \tmp, #32 // Patched to correct the immediate
+alternative_cb_end
+.Lspectre_bhb_loop\@:
+ b . + 4
+ subs \tmp, \tmp, #1
+ b.ne .Lspectre_bhb_loop\@
+ dsb nsh
+ isb
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+ .endm
+
+ /* Save/restores x0-x3 to the stack */
+ .macro __mitigate_spectre_bhb_fw
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+ stp x0, x1, [sp, #-16]!
+ stp x2, x3, [sp, #-16]!
+ mov w0, #ARM_SMCCC_ARCH_WORKAROUND_3
+alternative_cb arm64_update_smccc_conduit
+ nop // Patched to SMC/HVC #0
+alternative_cb_end
+ ldp x2, x3, [sp], #16
+ ldp x0, x1, [sp], #16
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+ .endm
#endif /* __ASM_ASSEMBLER_H */
diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
index 889226b4c6e1..c7f17e663e72 100644
--- a/arch/arm64/include/asm/cpu.h
+++ b/arch/arm64/include/asm/cpu.h
@@ -36,6 +36,7 @@ struct cpuinfo_arm64 {
u64 reg_id_aa64dfr1;
u64 reg_id_aa64isar0;
u64 reg_id_aa64isar1;
+ u64 reg_id_aa64isar2;
u64 reg_id_aa64mmfr0;
u64 reg_id_aa64mmfr1;
u64 reg_id_aa64mmfr2;
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index 8c7c4b23a8b1..9935e55a3cc7 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -38,7 +38,9 @@
#define ARM64_HARDEN_BRANCH_PREDICTOR 17
#define ARM64_SSBD 18
#define ARM64_MISMATCHED_CACHE_TYPE 19
+#define ARM64_WORKAROUND_1188873 20
+#define ARM64_SPECTRE_BHB 21
-#define ARM64_NCAPS 20
+#define ARM64_NCAPS 22
#endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index e7bef3d936d8..58a32511da8f 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -10,6 +10,7 @@
#define __ASM_CPUFEATURE_H
#include <asm/cpucaps.h>
+#include <asm/cputype.h>
#include <asm/hwcap.h>
#include <asm/sysreg.h>
@@ -66,24 +67,173 @@ struct arm64_ftr_reg {
extern struct arm64_ftr_reg arm64_ftr_reg_ctrel0;
-/* scope of capability check */
-enum {
- SCOPE_SYSTEM,
- SCOPE_LOCAL_CPU,
-};
+/*
+ * CPU capabilities:
+ *
+ * We use arm64_cpu_capabilities to represent system features, errata work
+ * arounds (both used internally by kernel and tracked in cpu_hwcaps) and
+ * ELF HWCAPs (which are exposed to user).
+ *
+ * To support systems with heterogeneous CPUs, we need to make sure that we
+ * detect the capabilities correctly on the system and take appropriate
+ * measures to ensure there are no incompatibilities.
+ *
+ * This comment tries to explain how we treat the capabilities.
+ * Each capability has the following list of attributes :
+ *
+ * 1) Scope of Detection : The system detects a given capability by
+ * performing some checks at runtime. This could be, e.g, checking the
+ * value of a field in CPU ID feature register or checking the cpu
+ * model. The capability provides a call back ( @matches() ) to
+ * perform the check. Scope defines how the checks should be performed.
+ * There are two cases:
+ *
+ * a) SCOPE_LOCAL_CPU: check all the CPUs and "detect" if at least one
+ * matches. This implies, we have to run the check on all the
+ * booting CPUs, until the system decides that state of the
+ * capability is finalised. (See section 2 below)
+ * Or
+ * b) SCOPE_SYSTEM: check all the CPUs and "detect" if all the CPUs
+ * matches. This implies, we run the check only once, when the
+ * system decides to finalise the state of the capability. If the
+ * capability relies on a field in one of the CPU ID feature
+ * registers, we use the sanitised value of the register from the
+ * CPU feature infrastructure to make the decision.
+ *
+ * The process of detection is usually denoted by "update" capability
+ * state in the code.
+ *
+ * 2) Finalise the state : The kernel should finalise the state of a
+ * capability at some point during its execution and take necessary
+ * actions if any. Usually, this is done, after all the boot-time
+ * enabled CPUs are brought up by the kernel, so that it can make
+ * better decision based on the available set of CPUs. However, there
+ * are some special cases, where the action is taken during the early
+ * boot by the primary boot CPU. (e.g, running the kernel at EL2 with
+ * Virtualisation Host Extensions). The kernel usually disallows any
+ * changes to the state of a capability once it finalises the capability
+ * and takes any action, as it may be impossible to execute the actions
+ * safely. A CPU brought up after a capability is "finalised" is
+ * referred to as "Late CPU" w.r.t the capability. e.g, all secondary
+ * CPUs are treated "late CPUs" for capabilities determined by the boot
+ * CPU.
+ *
+ * 3) Verification: When a CPU is brought online (e.g, by user or by the
+ * kernel), the kernel should make sure that it is safe to use the CPU,
+ * by verifying that the CPU is compliant with the state of the
+ * capabilities finalised already. This happens via :
+ *
+ * secondary_start_kernel()-> check_local_cpu_capabilities()
+ *
+ * As explained in (2) above, capabilities could be finalised at
+ * different points in the execution. Each CPU is verified against the
+ * "finalised" capabilities and if there is a conflict, the kernel takes
+ * an action, based on the severity (e.g, a CPU could be prevented from
+ * booting or cause a kernel panic). The CPU is allowed to "affect" the
+ * state of the capability, if it has not been finalised already.
+ * See section 5 for more details on conflicts.
+ *
+ * 4) Action: As mentioned in (2), the kernel can take an action for each
+ * detected capability, on all CPUs on the system. Appropriate actions
+ * include, turning on an architectural feature, modifying the control
+ * registers (e.g, SCTLR, TCR etc.) or patching the kernel via
+ * alternatives. The kernel patching is batched and performed at later
+ * point. The actions are always initiated only after the capability
+ * is finalised. This is usally denoted by "enabling" the capability.
+ * The actions are initiated as follows :
+ * a) Action is triggered on all online CPUs, after the capability is
+ * finalised, invoked within the stop_machine() context from
+ * enable_cpu_capabilitie().
+ *
+ * b) Any late CPU, brought up after (1), the action is triggered via:
+ *
+ * check_local_cpu_capabilities() -> verify_local_cpu_capabilities()
+ *
+ * 5) Conflicts: Based on the state of the capability on a late CPU vs.
+ * the system state, we could have the following combinations :
+ *
+ * x-----------------------------x
+ * | Type | System | Late CPU |
+ * |-----------------------------|
+ * | a | y | n |
+ * |-----------------------------|
+ * | b | n | y |
+ * x-----------------------------x
+ *
+ * Two separate flag bits are defined to indicate whether each kind of
+ * conflict can be allowed:
+ * ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU - Case(a) is allowed
+ * ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU - Case(b) is allowed
+ *
+ * Case (a) is not permitted for a capability that the system requires
+ * all CPUs to have in order for the capability to be enabled. This is
+ * typical for capabilities that represent enhanced functionality.
+ *
+ * Case (b) is not permitted for a capability that must be enabled
+ * during boot if any CPU in the system requires it in order to run
+ * safely. This is typical for erratum work arounds that cannot be
+ * enabled after the corresponding capability is finalised.
+ *
+ * In some non-typical cases either both (a) and (b), or neither,
+ * should be permitted. This can be described by including neither
+ * or both flags in the capability's type field.
+ */
+
+
+/* Decide how the capability is detected. On a local CPU vs System wide */
+#define ARM64_CPUCAP_SCOPE_LOCAL_CPU ((u16)BIT(0))
+#define ARM64_CPUCAP_SCOPE_SYSTEM ((u16)BIT(1))
+#define ARM64_CPUCAP_SCOPE_MASK \
+ (ARM64_CPUCAP_SCOPE_SYSTEM | \
+ ARM64_CPUCAP_SCOPE_LOCAL_CPU)
+
+#define SCOPE_SYSTEM ARM64_CPUCAP_SCOPE_SYSTEM
+#define SCOPE_LOCAL_CPU ARM64_CPUCAP_SCOPE_LOCAL_CPU
+
+/*
+ * Is it permitted for a late CPU to have this capability when system
+ * hasn't already enabled it ?
+ */
+#define ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU ((u16)BIT(4))
+/* Is it safe for a late CPU to miss this capability when system has it */
+#define ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU ((u16)BIT(5))
+
+/*
+ * CPU errata workarounds that need to be enabled at boot time if one or
+ * more CPUs in the system requires it. When one of these capabilities
+ * has been enabled, it is safe to allow any CPU to boot that doesn't
+ * require the workaround. However, it is not safe if a "late" CPU
+ * requires a workaround and the system hasn't enabled it already.
+ */
+#define ARM64_CPUCAP_LOCAL_CPU_ERRATUM \
+ (ARM64_CPUCAP_SCOPE_LOCAL_CPU | ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU)
+/*
+ * CPU feature detected at boot time based on system-wide value of a
+ * feature. It is safe for a late CPU to have this feature even though
+ * the system hasn't enabled it, although the featuer will not be used
+ * by Linux in this case. If the system has enabled this feature already,
+ * then every late CPU must have it.
+ */
+#define ARM64_CPUCAP_SYSTEM_FEATURE \
+ (ARM64_CPUCAP_SCOPE_SYSTEM | ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU)
struct arm64_cpu_capabilities {
const char *desc;
u16 capability;
- int def_scope; /* default scope */
+ u16 type;
bool (*matches)(const struct arm64_cpu_capabilities *caps, int scope);
- int (*enable)(void *); /* Called on all active CPUs */
+ /*
+ * Take the appropriate actions to enable this capability for this CPU.
+ * For each successfully booted CPU, this method is called for each
+ * globally detected capability.
+ */
+ void (*cpu_enable)(const struct arm64_cpu_capabilities *cap);
union {
struct { /* To be used for erratum handling only */
- u32 midr_model;
- u32 midr_range_min, midr_range_max;
+ struct midr_range midr_range;
};
+ const struct midr_range *midr_range_list;
struct { /* Feature register checking */
u32 sys_reg;
u8 field_pos;
@@ -95,6 +245,23 @@ struct arm64_cpu_capabilities {
};
};
+static inline int cpucap_default_scope(const struct arm64_cpu_capabilities *cap)
+{
+ return cap->type & ARM64_CPUCAP_SCOPE_MASK;
+}
+
+static inline bool
+cpucap_late_cpu_optional(const struct arm64_cpu_capabilities *cap)
+{
+ return !!(cap->type & ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU);
+}
+
+static inline bool
+cpucap_late_cpu_permitted(const struct arm64_cpu_capabilities *cap)
+{
+ return !!(cap->type & ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU);
+}
+
extern DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);
extern struct static_key_false cpu_hwcap_keys[ARM64_NCAPS];
extern struct static_key_false arm64_const_caps_ready;
@@ -195,15 +362,8 @@ static inline bool id_aa64pfr0_32bit_el0(u64 pfr0)
}
void __init setup_cpu_features(void);
-
-void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps,
- const char *info);
-void enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps);
void check_local_cpu_capabilities(void);
-void update_cpu_errata_workarounds(void);
-void __init enable_errata_workarounds(void);
-void verify_local_cpu_errata_workarounds(void);
u64 read_system_reg(u32 id);
@@ -212,6 +372,34 @@ static inline bool cpu_supports_mixed_endian_el0(void)
return id_aa64mmfr0_mixed_endian_el0(read_cpuid(ID_AA64MMFR0_EL1));
}
+static inline bool supports_csv2p3(int scope)
+{
+ u64 pfr0;
+ u8 csv2_val;
+
+ if (scope == SCOPE_LOCAL_CPU)
+ pfr0 = read_sysreg_s(SYS_ID_AA64PFR0_EL1);
+ else
+ pfr0 = read_system_reg(SYS_ID_AA64PFR0_EL1);
+
+ csv2_val = cpuid_feature_extract_unsigned_field(pfr0,
+ ID_AA64PFR0_CSV2_SHIFT);
+ return csv2_val == 3;
+}
+
+static inline bool supports_clearbhb(int scope)
+{
+ u64 isar2;
+
+ if (scope == SCOPE_LOCAL_CPU)
+ isar2 = read_sysreg_s(SYS_ID_AA64ISAR2_EL1);
+ else
+ isar2 = read_system_reg(SYS_ID_AA64ISAR2_EL1);
+
+ return cpuid_feature_extract_unsigned_field(isar2,
+ ID_AA64ISAR2_CLEARBHB_SHIFT);
+}
+
static inline bool system_supports_32bit_el0(void)
{
return cpus_have_const_cap(ARM64_HAS_32BIT_EL0);
@@ -244,6 +432,18 @@ void arm64_set_ssbd_mitigation(bool state);
static inline void arm64_set_ssbd_mitigation(bool state) {}
#endif
+/* Watch out, ordering is important here. */
+enum mitigation_state {
+ SPECTRE_UNAFFECTED,
+ SPECTRE_MITIGATED,
+ SPECTRE_VULNERABLE,
+};
+
+enum mitigation_state arm64_get_spectre_bhb_state(void);
+bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry, int scope);
+u8 spectre_bhb_loop_affected(int scope);
+void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry);
+
#endif /* __ASSEMBLY__ */
#endif
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 39d1db68748d..7ffa41caa417 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -83,6 +83,18 @@
#define ARM_CPU_PART_CORTEX_A53 0xD03
#define ARM_CPU_PART_CORTEX_A73 0xD09
#define ARM_CPU_PART_CORTEX_A75 0xD0A
+#define ARM_CPU_PART_CORTEX_A35 0xD04
+#define ARM_CPU_PART_CORTEX_A55 0xD05
+#define ARM_CPU_PART_CORTEX_A76 0xD0B
+#define ARM_CPU_PART_NEOVERSE_N1 0xD0C
+#define ARM_CPU_PART_CORTEX_A77 0xD0D
+#define ARM_CPU_PART_NEOVERSE_V1 0xD40
+#define ARM_CPU_PART_CORTEX_A78 0xD41
+#define ARM_CPU_PART_CORTEX_X1 0xD44
+#define ARM_CPU_PART_CORTEX_A710 0xD47
+#define ARM_CPU_PART_CORTEX_X2 0xD48
+#define ARM_CPU_PART_NEOVERSE_N2 0xD49
+#define ARM_CPU_PART_CORTEX_A78C 0xD4B
#define APM_CPU_PART_POTENZA 0x000
@@ -98,6 +110,18 @@
#define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
#define MIDR_CORTEX_A73 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A73)
#define MIDR_CORTEX_A75 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A75)
+#define MIDR_CORTEX_A35 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A35)
+#define MIDR_CORTEX_A55 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A55)
+#define MIDR_CORTEX_A76 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
+#define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
+#define MIDR_CORTEX_A77 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
+#define MIDR_NEOVERSE_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V1)
+#define MIDR_CORTEX_A78 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78)
+#define MIDR_CORTEX_X1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X1)
+#define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
+#define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
+#define MIDR_CORTEX_A78C MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C)
#define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
#define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
#define MIDR_CAVIUM_THUNDERX2 MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX2)
@@ -109,6 +133,45 @@
#define read_cpuid(reg) read_sysreg_s(SYS_ ## reg)
+/*
+ * Represent a range of MIDR values for a given CPU model and a
+ * range of variant/revision values.
+ *
+ * @model - CPU model as defined by MIDR_CPU_MODEL
+ * @rv_min - Minimum value for the revision/variant as defined by
+ * MIDR_CPU_VAR_REV
+ * @rv_max - Maximum value for the variant/revision for the range.
+ */
+struct midr_range {
+ u32 model;
+ u32 rv_min;
+ u32 rv_max;
+};
+
+#define MIDR_RANGE(m, v_min, r_min, v_max, r_max) \
+ { \
+ .model = m, \
+ .rv_min = MIDR_CPU_VAR_REV(v_min, r_min), \
+ .rv_max = MIDR_CPU_VAR_REV(v_max, r_max), \
+ }
+
+#define MIDR_ALL_VERSIONS(m) MIDR_RANGE(m, 0, 0, 0xf, 0xf)
+
+static inline bool is_midr_in_range(u32 midr, struct midr_range const *range)
+{
+ return MIDR_IS_CPU_MODEL_RANGE(midr, range->model,
+ range->rv_min, range->rv_max);
+}
+
+static inline bool
+is_midr_in_range_list(u32 midr, struct midr_range const *ranges)
+{
+ while (ranges->model)
+ if (is_midr_in_range(midr, ranges++))
+ return true;
+ return false;
+}
+
/*
* The CPU ID never changes at run time, so we might as well tell the
* compiler that it's constant. Use this function to read the CPU ID
diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index d8e58051f32d..4ffe0d698fa7 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -53,9 +53,11 @@ enum fixed_addresses {
FIX_TEXT_POKE0,
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
+ FIX_ENTRY_TRAMP_TEXT3,
+ FIX_ENTRY_TRAMP_TEXT2,
+ FIX_ENTRY_TRAMP_TEXT1,
FIX_ENTRY_TRAMP_DATA,
- FIX_ENTRY_TRAMP_TEXT,
-#define TRAMP_VALIAS (__fix_to_virt(FIX_ENTRY_TRAMP_TEXT))
+#define TRAMP_VALIAS (__fix_to_virt(FIX_ENTRY_TRAMP_TEXT1))
#endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
__end_of_permanent_fixed_addresses,
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index bc853663dd51..aecc07e09a18 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -332,6 +332,8 @@ bool aarch64_insn_is_branch(u32 insn);
u64 aarch64_insn_decode_immediate(enum aarch64_insn_imm_type type, u32 insn);
u32 aarch64_insn_encode_immediate(enum aarch64_insn_imm_type type,
u32 insn, u64 imm);
+u32 aarch64_insn_decode_register(enum aarch64_insn_register_type type,
+ u32 insn);
u32 aarch64_insn_gen_branch_imm(unsigned long pc, unsigned long addr,
enum aarch64_insn_branch_type type);
u32 aarch64_insn_gen_comp_branch_imm(unsigned long pc, unsigned long addr,
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a152a7bbc85a..a75f02e5f0fd 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -452,4 +452,8 @@ static inline int kvm_arm_have_ssbd(void)
}
}
+static inline bool kvm_arm_spectre_bhb_mitigated(void)
+{
+ return arm64_get_spectre_bhb_state() == SPECTRE_MITIGATED;
+}
#endif /* __ARM64_KVM_HOST_H__ */
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index ff721659eb94..4a2c95854856 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -362,7 +362,7 @@ static inline void *kvm_get_hyp_vector(void)
struct bp_hardening_data *data = arm64_get_bp_hardening_data();
void *vect = kvm_ksym_ref(__kvm_hyp_vector);
- if (data->fn) {
+ if (data->template_start) {
vect = __bp_harden_hyp_vecs_start +
data->hyp_vectors_slot * SZ_2K;
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index 6ac34c75f4e1..f4377b005cba 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -34,7 +34,7 @@ typedef struct {
*/
#define ASID(mm) ((mm)->context.id.counter & 0xffff)
-static inline bool arm64_kernel_unmapped_at_el0(void)
+static __always_inline bool arm64_kernel_unmapped_at_el0(void)
{
return IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0) &&
cpus_have_const_cap(ARM64_UNMAP_KERNEL_AT_EL0);
@@ -45,6 +45,12 @@ typedef void (*bp_hardening_cb_t)(void);
struct bp_hardening_data {
int hyp_vectors_slot;
bp_hardening_cb_t fn;
+
+ /*
+ * template_start is only used by the BHB mitigation to identify the
+ * hyp_vectors_slot sequence.
+ */
+ const char *template_start;
};
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 9ee660013e5c..367141e05c34 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -37,6 +37,7 @@
#include <linux/string.h>
#include <asm/alternative.h>
+#include <asm/cpufeature.h>
#include <asm/fpsimd.h>
#include <asm/hw_breakpoint.h>
#include <asm/lse.h>
@@ -219,9 +220,8 @@ static inline void spin_lock_prefetch(const void *ptr)
#endif
-int cpu_enable_pan(void *__unused);
-int cpu_enable_uao(void *__unused);
-int cpu_enable_cache_maint_trap(void *__unused);
+void cpu_enable_pan(const struct arm64_cpu_capabilities *__unused);
+void cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused);
#endif /* __ASSEMBLY__ */
#endif /* __ASM_PROCESSOR_H */
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
index 4e7e7067afdb..09ebd37d5aa3 100644
--- a/arch/arm64/include/asm/sections.h
+++ b/arch/arm64/include/asm/sections.h
@@ -26,5 +26,11 @@ extern char __hyp_text_start[], __hyp_text_end[];
extern char __idmap_text_start[], __idmap_text_end[];
extern char __irqentry_text_start[], __irqentry_text_end[];
extern char __mmuoff_data_start[], __mmuoff_data_end[];
+extern char __entry_tramp_text_start[], __entry_tramp_text_end[];
+
+static inline size_t entry_tramp_text_size(void)
+{
+ return __entry_tramp_text_end - __entry_tramp_text_start;
+}
#endif /* __ASM_SECTIONS_H */
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index ae1b31d02784..46e97be12e02 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -70,6 +70,7 @@
#define SYS_ID_AA64ISAR0_EL1 sys_reg(3, 0, 0, 6, 0)
#define SYS_ID_AA64ISAR1_EL1 sys_reg(3, 0, 0, 6, 1)
+#define SYS_ID_AA64ISAR2_EL1 sys_reg(3, 0, 0, 6, 2)
#define SYS_ID_AA64MMFR0_EL1 sys_reg(3, 0, 0, 7, 0)
#define SYS_ID_AA64MMFR1_EL1 sys_reg(3, 0, 0, 7, 1)
@@ -173,6 +174,9 @@
#define ID_AA64ISAR0_SHA1_SHIFT 8
#define ID_AA64ISAR0_AES_SHIFT 4
+/* id_aa64isar2 */
+#define ID_AA64ISAR2_CLEARBHB_SHIFT 28
+
/* id_aa64pfr0 */
#define ID_AA64PFR0_CSV3_SHIFT 60
#define ID_AA64PFR0_CSV2_SHIFT 56
@@ -211,6 +215,7 @@
#define ID_AA64MMFR0_TGRAN16_SUPPORTED 0x1
/* id_aa64mmfr1 */
+#define ID_AA64MMFR1_ECBHB_SHIFT 60
#define ID_AA64MMFR1_PAN_SHIFT 20
#define ID_AA64MMFR1_LOR_SHIFT 16
#define ID_AA64MMFR1_HPD_SHIFT 12
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
new file mode 100644
index 000000000000..695583b9a145
--- /dev/null
+++ b/arch/arm64/include/asm/vectors.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022 ARM Ltd.
+ */
+#ifndef __ASM_VECTORS_H
+#define __ASM_VECTORS_H
+
+#include <linux/bug.h>
+#include <linux/percpu.h>
+
+#include <asm/fixmap.h>
+#include <asm/mmu.h>
+
+extern char vectors[];
+extern char tramp_vectors[];
+extern char __bp_harden_el1_vectors[];
+
+/*
+ * Note: the order of this enum corresponds to two arrays in entry.S:
+ * tramp_vecs and __bp_harden_el1_vectors. By default the canonical
+ * 'full fat' vectors are used directly.
+ */
+enum arm64_bp_harden_el1_vectors {
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+ /*
+ * Perform the BHB loop mitigation, before branching to the canonical
+ * vectors.
+ */
+ EL1_VECTOR_BHB_LOOP,
+
+ /*
+ * Make the SMC call for firmware mitigation, before branching to the
+ * canonical vectors.
+ */
+ EL1_VECTOR_BHB_FW,
+
+ /*
+ * Use the ClearBHB instruction, before branching to the canonical
+ * vectors.
+ */
+ EL1_VECTOR_BHB_CLEAR_INSN,
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+
+ /*
+ * Remap the kernel before branching to the canonical vectors.
+ */
+ EL1_VECTOR_KPTI,
+};
+
+#ifndef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+#define EL1_VECTOR_BHB_LOOP -1
+#define EL1_VECTOR_BHB_FW -1
+#define EL1_VECTOR_BHB_CLEAR_INSN -1
+#endif /* !CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+
+/* The vectors to use on return from EL0. e.g. to remap the kernel */
+DECLARE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector);
+
+#ifndef CONFIG_UNMAP_KERNEL_AT_EL0
+#define TRAMP_VALIAS 0
+#endif
+
+static inline const char *
+arm64_get_bp_hardening_vector(enum arm64_bp_harden_el1_vectors slot)
+{
+ if (arm64_kernel_unmapped_at_el0())
+ return (char *)TRAMP_VALIAS + SZ_2K * slot;
+
+ WARN_ON_ONCE(slot == EL1_VECTOR_KPTI);
+
+ return __bp_harden_el1_vectors + SZ_2K * slot;
+}
+
+#endif /* __ASM_VECTORS_H */
diff --git a/arch/arm64/kernel/bpi.S b/arch/arm64/kernel/bpi.S
index dc4eb154e33b..d3fd8bf42d86 100644
--- a/arch/arm64/kernel/bpi.S
+++ b/arch/arm64/kernel/bpi.S
@@ -73,3 +73,58 @@ ENTRY(__smccc_workaround_1_smc_end)
ENTRY(__smccc_workaround_1_hvc_start)
smccc_workaround_1 hvc
ENTRY(__smccc_workaround_1_hvc_end)
+
+ENTRY(__smccc_workaround_3_smc_start)
+ sub sp, sp, #(8 * 4)
+ stp x2, x3, [sp, #(8 * 0)]
+ stp x0, x1, [sp, #(8 * 2)]
+ mov w0, #ARM_SMCCC_ARCH_WORKAROUND_3
+ smc #0
+ ldp x2, x3, [sp, #(8 * 0)]
+ ldp x0, x1, [sp, #(8 * 2)]
+ add sp, sp, #(8 * 4)
+ENTRY(__smccc_workaround_3_smc_end)
+
+ENTRY(__spectre_bhb_loop_k8_start)
+ sub sp, sp, #(8 * 2)
+ stp x0, x1, [sp, #(8 * 0)]
+ mov x0, #8
+2: b . + 4
+ subs x0, x0, #1
+ b.ne 2b
+ dsb nsh
+ isb
+ ldp x0, x1, [sp, #(8 * 0)]
+ add sp, sp, #(8 * 2)
+ENTRY(__spectre_bhb_loop_k8_end)
+
+ENTRY(__spectre_bhb_loop_k24_start)
+ sub sp, sp, #(8 * 2)
+ stp x0, x1, [sp, #(8 * 0)]
+ mov x0, #24
+2: b . + 4
+ subs x0, x0, #1
+ b.ne 2b
+ dsb nsh
+ isb
+ ldp x0, x1, [sp, #(8 * 0)]
+ add sp, sp, #(8 * 2)
+ENTRY(__spectre_bhb_loop_k24_end)
+
+ENTRY(__spectre_bhb_loop_k32_start)
+ sub sp, sp, #(8 * 2)
+ stp x0, x1, [sp, #(8 * 0)]
+ mov x0, #32
+2: b . + 4
+ subs x0, x0, #1
+ b.ne 2b
+ dsb nsh
+ isb
+ ldp x0, x1, [sp, #(8 * 0)]
+ add sp, sp, #(8 * 2)
+ENTRY(__spectre_bhb_loop_k32_end)
+
+ENTRY(__spectre_bhb_clearbhb_start)
+ hint #22 /* aka clearbhb */
+ isb
+ENTRY(__spectre_bhb_clearbhb_end)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 3b680a32886b..f0cdf21b1006 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -23,14 +23,23 @@
#include <asm/cpu.h>
#include <asm/cputype.h>
#include <asm/cpufeature.h>
+#include <asm/vectors.h>
static bool __maybe_unused
is_affected_midr_range(const struct arm64_cpu_capabilities *entry, int scope)
{
+ u32 midr = read_cpuid_id();
+
WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
- return MIDR_IS_CPU_MODEL_RANGE(read_cpuid_id(), entry->midr_model,
- entry->midr_range_min,
- entry->midr_range_max);
+ return is_midr_in_range(midr, &entry->midr_range);
+}
+
+static bool __maybe_unused
+is_affected_midr_range_list(const struct arm64_cpu_capabilities *entry,
+ int scope)
+{
+ WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
+ return is_midr_in_range_list(read_cpuid_id(), entry->midr_range_list);
}
static bool
@@ -48,17 +57,18 @@ has_mismatched_cache_type(const struct arm64_cpu_capabilities *entry,
(arm64_ftr_reg_ctrel0.sys_val & mask);
}
-static int cpu_enable_trap_ctr_access(void *__unused)
+static void
+cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *__unused)
{
/* Clear SCTLR_EL1.UCT */
config_sctlr_el1(SCTLR_EL1_UCT, 0);
- return 0;
}
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
+static bool __hardenbp_enab;
DEFINE_PER_CPU_READ_MOSTLY(struct bp_hardening_data, bp_hardening_data);
#ifdef CONFIG_KVM
@@ -66,6 +76,16 @@ extern char __smccc_workaround_1_smc_start[];
extern char __smccc_workaround_1_smc_end[];
extern char __smccc_workaround_1_hvc_start[];
extern char __smccc_workaround_1_hvc_end[];
+extern char __smccc_workaround_3_smc_start[];
+extern char __smccc_workaround_3_smc_end[];
+extern char __spectre_bhb_loop_k8_start[];
+extern char __spectre_bhb_loop_k8_end[];
+extern char __spectre_bhb_loop_k24_start[];
+extern char __spectre_bhb_loop_k24_end[];
+extern char __spectre_bhb_loop_k32_start[];
+extern char __spectre_bhb_loop_k32_end[];
+extern char __spectre_bhb_clearbhb_start[];
+extern char __spectre_bhb_clearbhb_end[];
static void __copy_hyp_vect_bpi(int slot, const char *hyp_vecs_start,
const char *hyp_vecs_end)
@@ -79,12 +99,14 @@ static void __copy_hyp_vect_bpi(int slot, const char *hyp_vecs_start,
flush_icache_range((uintptr_t)dst, (uintptr_t)dst + SZ_2K);
}
+static DEFINE_SPINLOCK(bp_lock);
+static int last_slot = -1;
+
static void __install_bp_hardening_cb(bp_hardening_cb_t fn,
const char *hyp_vecs_start,
const char *hyp_vecs_end)
{
- static int last_slot = -1;
- static DEFINE_SPINLOCK(bp_lock);
+
int cpu, slot = -1;
spin_lock(&bp_lock);
@@ -105,6 +127,8 @@ static void __install_bp_hardening_cb(bp_hardening_cb_t fn,
__this_cpu_write(bp_hardening_data.hyp_vectors_slot, slot);
__this_cpu_write(bp_hardening_data.fn, fn);
+ __this_cpu_write(bp_hardening_data.template_start, hyp_vecs_start);
+ __hardenbp_enab = true;
spin_unlock(&bp_lock);
}
#else
@@ -118,6 +142,7 @@ static void __install_bp_hardening_cb(bp_hardening_cb_t fn,
const char *hyp_vecs_end)
{
__this_cpu_write(bp_hardening_data.fn, fn);
+ __hardenbp_enab = true;
}
#endif /* CONFIG_KVM */
@@ -152,25 +177,25 @@ static void call_hvc_arch_workaround_1(void)
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL);
}
-static int enable_smccc_arch_workaround_1(void *data)
+static void
+enable_smccc_arch_workaround_1(const struct arm64_cpu_capabilities *entry)
{
- const struct arm64_cpu_capabilities *entry = data;
bp_hardening_cb_t cb;
void *smccc_start, *smccc_end;
struct arm_smccc_res res;
if (!entry->matches(entry, SCOPE_LOCAL_CPU))
- return 0;
+ return;
if (psci_ops.smccc_version == SMCCC_VERSION_1_0)
- return 0;
+ return;
switch (psci_ops.conduit) {
case PSCI_CONDUIT_HVC:
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 < 0)
- return 0;
+ return;
cb = call_hvc_arch_workaround_1;
smccc_start = __smccc_workaround_1_hvc_start;
smccc_end = __smccc_workaround_1_hvc_end;
@@ -180,22 +205,44 @@ static int enable_smccc_arch_workaround_1(void *data)
arm_smccc_1_1_smc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 < 0)
- return 0;
+ return;
cb = call_smc_arch_workaround_1;
smccc_start = __smccc_workaround_1_smc_start;
smccc_end = __smccc_workaround_1_smc_end;
break;
default:
- return 0;
+ return;
}
install_bp_hardening_cb(entry, cb, smccc_start, smccc_end);
- return 0;
+ return;
}
#endif /* CONFIG_HARDEN_BRANCH_PREDICTOR */
+void __init arm64_update_smccc_conduit(struct alt_instr *alt,
+ __le32 *origptr, __le32 *updptr,
+ int nr_inst)
+{
+ u32 insn;
+
+ BUG_ON(nr_inst != 1);
+
+ switch (psci_ops.conduit) {
+ case PSCI_CONDUIT_HVC:
+ insn = aarch64_insn_get_hvc_value();
+ break;
+ case PSCI_CONDUIT_SMC:
+ insn = aarch64_insn_get_smc_value();
+ break;
+ default:
+ return;
+ }
+
+ *updptr = cpu_to_le32(insn);
+}
+
#ifdef CONFIG_ARM64_SSBD
DEFINE_PER_CPU_READ_MOSTLY(u64, arm64_ssbd_callback_required);
@@ -231,28 +278,6 @@ static int __init ssbd_cfg(char *buf)
}
early_param("ssbd", ssbd_cfg);
-void __init arm64_update_smccc_conduit(struct alt_instr *alt,
- __le32 *origptr, __le32 *updptr,
- int nr_inst)
-{
- u32 insn;
-
- BUG_ON(nr_inst != 1);
-
- switch (psci_ops.conduit) {
- case PSCI_CONDUIT_HVC:
- insn = aarch64_insn_get_hvc_value();
- break;
- case PSCI_CONDUIT_SMC:
- insn = aarch64_insn_get_smc_value();
- break;
- default:
- return;
- }
-
- *updptr = cpu_to_le32(insn);
-}
-
void __init arm64_enable_wa2_handling(struct alt_instr *alt,
__le32 *origptr, __le32 *updptr,
int nr_inst)
@@ -368,19 +393,60 @@ static bool has_ssbd_mitigation(const struct arm64_cpu_capabilities *entry,
}
#endif /* CONFIG_ARM64_SSBD */
-#define MIDR_RANGE(model, min, max) \
- .def_scope = SCOPE_LOCAL_CPU, \
- .matches = is_affected_midr_range, \
- .midr_model = model, \
- .midr_range_min = min, \
- .midr_range_max = max
+#define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \
+ .matches = is_affected_midr_range, \
+ .midr_range = MIDR_RANGE(model, v_min, r_min, v_max, r_max)
+
+#define CAP_MIDR_ALL_VERSIONS(model) \
+ .matches = is_affected_midr_range, \
+ .midr_range = MIDR_ALL_VERSIONS(model)
+
+#define MIDR_FIXED(rev, revidr_mask) \
+ .fixed_revs = (struct arm64_midr_revidr[]){{ (rev), (revidr_mask) }, {}}
+
+#define ERRATA_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
+ CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max)
+
+#define CAP_MIDR_RANGE_LIST(list) \
+ .matches = is_affected_midr_range_list, \
+ .midr_range_list = list
-#define MIDR_ALL_VERSIONS(model) \
- .def_scope = SCOPE_LOCAL_CPU, \
- .matches = is_affected_midr_range, \
- .midr_model = model, \
- .midr_range_min = 0, \
- .midr_range_max = (MIDR_VARIANT_MASK | MIDR_REVISION_MASK)
+/* Errata affecting a range of revisions of given model variant */
+#define ERRATA_MIDR_REV_RANGE(m, var, r_min, r_max) \
+ ERRATA_MIDR_RANGE(m, var, r_min, var, r_max)
+
+/* Errata affecting a single variant/revision of a model */
+#define ERRATA_MIDR_REV(model, var, rev) \
+ ERRATA_MIDR_RANGE(model, var, rev, var, rev)
+
+/* Errata affecting all variants/revisions of a given a model */
+#define ERRATA_MIDR_ALL_VERSIONS(model) \
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
+ CAP_MIDR_ALL_VERSIONS(model)
+
+/* Errata affecting a list of midr ranges, with same work around */
+#define ERRATA_MIDR_RANGE_LIST(midr_list) \
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM, \
+ CAP_MIDR_RANGE_LIST(midr_list)
+
+#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
+
+/*
+ * List of CPUs where we need to issue a psci call to
+ * harden the branch predictor.
+ */
+static const struct midr_range arm64_bp_harden_smccc_cpus[] = {
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
+ MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
+ MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
+ {},
+};
+
+#endif
const struct arm64_cpu_capabilities arm64_errata[] = {
#if defined(CONFIG_ARM64_ERRATUM_826319) || \
@@ -390,8 +456,8 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A53 r0p[012] */
.desc = "ARM errata 826319, 827319, 824069",
.capability = ARM64_WORKAROUND_CLEAN_CACHE,
- MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x02),
- .enable = cpu_enable_cache_maint_trap,
+ ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 2),
+ .cpu_enable = cpu_enable_cache_maint_trap,
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_819472
@@ -399,8 +465,8 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A53 r0p[01] */
.desc = "ARM errata 819472",
.capability = ARM64_WORKAROUND_CLEAN_CACHE,
- MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x01),
- .enable = cpu_enable_cache_maint_trap,
+ ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 1),
+ .cpu_enable = cpu_enable_cache_maint_trap,
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_832075
@@ -408,8 +474,9 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A57 r0p0 - r1p2 */
.desc = "ARM erratum 832075",
.capability = ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE,
- MIDR_RANGE(MIDR_CORTEX_A57, 0x00,
- (1 << MIDR_VARIANT_SHIFT) | 2),
+ ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
+ 0, 0,
+ 1, 2),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_834220
@@ -417,8 +484,9 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A57 r0p0 - r1p2 */
.desc = "ARM erratum 834220",
.capability = ARM64_WORKAROUND_834220,
- MIDR_RANGE(MIDR_CORTEX_A57, 0x00,
- (1 << MIDR_VARIANT_SHIFT) | 2),
+ ERRATA_MIDR_RANGE(MIDR_CORTEX_A57,
+ 0, 0,
+ 1, 2),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_845719
@@ -426,7 +494,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cortex-A53 r0p[01234] */
.desc = "ARM erratum 845719",
.capability = ARM64_WORKAROUND_845719,
- MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x04),
+ ERRATA_MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_23154
@@ -434,7 +502,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cavium ThunderX, pass 1.x */
.desc = "Cavium erratum 23154",
.capability = ARM64_WORKAROUND_CAVIUM_23154,
- MIDR_RANGE(MIDR_THUNDERX, 0x00, 0x01),
+ ERRATA_MIDR_REV_RANGE(MIDR_THUNDERX, 0, 0, 1),
},
#endif
#ifdef CONFIG_CAVIUM_ERRATUM_27456
@@ -442,103 +510,402 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
/* Cavium ThunderX, T88 pass 1.x - 2.1 */
.desc = "Cavium erratum 27456",
.capability = ARM64_WORKAROUND_CAVIUM_27456,
- MIDR_RANGE(MIDR_THUNDERX, 0x00,
- (1 << MIDR_VARIANT_SHIFT) | 1),
+ ERRATA_MIDR_RANGE(MIDR_THUNDERX,
+ 0, 0,
+ 1, 1),
},
{
/* Cavium ThunderX, T81 pass 1.0 */
.desc = "Cavium erratum 27456",
.capability = ARM64_WORKAROUND_CAVIUM_27456,
- MIDR_RANGE(MIDR_THUNDERX_81XX, 0x00, 0x00),
+ ERRATA_MIDR_REV(MIDR_THUNDERX_81XX, 0, 0),
},
#endif
{
.desc = "Mismatched cache line size",
.capability = ARM64_MISMATCHED_CACHE_LINE_SIZE,
.matches = has_mismatched_cache_type,
- .def_scope = SCOPE_LOCAL_CPU,
- .enable = cpu_enable_trap_ctr_access,
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
+ .cpu_enable = cpu_enable_trap_ctr_access,
},
{
.desc = "Mismatched cache type",
.capability = ARM64_MISMATCHED_CACHE_TYPE,
.matches = has_mismatched_cache_type,
- .def_scope = SCOPE_LOCAL_CPU,
- .enable = cpu_enable_trap_ctr_access,
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
+ .cpu_enable = cpu_enable_trap_ctr_access,
},
#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
{
.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
- .enable = enable_smccc_arch_workaround_1,
- },
- {
- .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
- .enable = enable_smccc_arch_workaround_1,
- },
- {
- .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
- .enable = enable_smccc_arch_workaround_1,
- },
- {
- .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
- .enable = enable_smccc_arch_workaround_1,
- },
- {
- .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
- .enable = enable_smccc_arch_workaround_1,
- },
- {
- .capability = ARM64_HARDEN_BRANCH_PREDICTOR,
- MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
- .enable = enable_smccc_arch_workaround_1,
+ ERRATA_MIDR_RANGE_LIST(arm64_bp_harden_smccc_cpus),
+ .cpu_enable = enable_smccc_arch_workaround_1,
},
#endif
#ifdef CONFIG_ARM64_SSBD
{
.desc = "Speculative Store Bypass Disable",
- .def_scope = SCOPE_LOCAL_CPU,
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
.capability = ARM64_SSBD,
.matches = has_ssbd_mitigation,
},
#endif
+#ifdef CONFIG_ARM64_ERRATUM_1188873
+ {
+ /* Cortex-A76 r0p0 to r2p0 */
+ .desc = "ARM erratum 1188873",
+ .capability = ARM64_WORKAROUND_1188873,
+ ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
+ },
+#endif
+ {
+ .desc = "Spectre-BHB",
+ .type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
+ .capability = ARM64_SPECTRE_BHB,
+ .matches = is_spectre_bhb_affected,
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+ .cpu_enable = spectre_bhb_enable_mitigation,
+#endif
+ },
{
}
};
/*
- * The CPU Errata work arounds are detected and applied at boot time
- * and the related information is freed soon after. If the new CPU requires
- * an errata not detected at boot, fail this CPU.
+ * We try to ensure that the mitigation state can never change as the result of
+ * onlining a late CPU.
*/
-void verify_local_cpu_errata_workarounds(void)
+static void __maybe_unused update_mitigation_state(enum mitigation_state *oldp,
+ enum mitigation_state new)
{
- const struct arm64_cpu_capabilities *caps = arm64_errata;
-
- for (; caps->matches; caps++) {
- if (cpus_have_cap(caps->capability)) {
- if (caps->enable)
- caps->enable((void *)caps);
- } else if (caps->matches(caps, SCOPE_LOCAL_CPU)) {
- pr_crit("CPU%d: Requires work around for %s, not detected"
- " at boot time\n",
- smp_processor_id(),
- caps->desc ? : "an erratum");
- cpu_die_early();
+ enum mitigation_state state;
+
+ do {
+ state = READ_ONCE(*oldp);
+ if (new <= state)
+ break;
+ } while (cmpxchg_relaxed(oldp, state, new) != state);
+}
+
+/*
+ * Spectre BHB.
+ *
+ * A CPU is either:
+ * - Mitigated by a branchy loop a CPU specific number of times, and listed
+ * in our "loop mitigated list".
+ * - Mitigated in software by the firmware Spectre v2 call.
+ * - Has the ClearBHB instruction to perform the mitigation.
+ * - Has the 'Exception Clears Branch History Buffer' (ECBHB) feature, so no
+ * software mitigation in the vectors is needed.
+ * - Has CSV2.3, so is unaffected.
+ */
+static enum mitigation_state spectre_bhb_state;
+
+enum mitigation_state arm64_get_spectre_bhb_state(void)
+{
+ return spectre_bhb_state;
+}
+
+/*
+ * This must be called with SCOPE_LOCAL_CPU for each type of CPU, before any
+ * SCOPE_SYSTEM call will give the right answer.
+ */
+u8 spectre_bhb_loop_affected(int scope)
+{
+ u8 k = 0;
+ static u8 max_bhb_k;
+
+ if (scope == SCOPE_LOCAL_CPU) {
+ static const struct midr_range spectre_bhb_k32_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
+ {},
+ };
+ static const struct midr_range spectre_bhb_k24_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
+ MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
+ {},
+ };
+ static const struct midr_range spectre_bhb_k8_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
+ {},
+ };
+
+ if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k32_list))
+ k = 32;
+ else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k24_list))
+ k = 24;
+ else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k8_list))
+ k = 8;
+
+ max_bhb_k = max(max_bhb_k, k);
+ } else {
+ k = max_bhb_k;
+ }
+
+ return k;
+}
+
+static enum mitigation_state spectre_bhb_get_cpu_fw_mitigation_state(void)
+{
+ int ret;
+ struct arm_smccc_res res;
+
+ if (psci_ops.smccc_version == SMCCC_VERSION_1_0)
+ return SPECTRE_VULNERABLE;
+
+ switch (psci_ops.conduit) {
+ case PSCI_CONDUIT_HVC:
+ arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
+ ARM_SMCCC_ARCH_WORKAROUND_3, &res);
+ break;
+
+ case PSCI_CONDUIT_SMC:
+ arm_smccc_1_1_smc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
+ ARM_SMCCC_ARCH_WORKAROUND_3, &res);
+ break;
+
+ default:
+ return SPECTRE_VULNERABLE;
+ }
+
+ ret = res.a0;
+ switch (ret) {
+ case SMCCC_RET_SUCCESS:
+ return SPECTRE_MITIGATED;
+ case SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED:
+ return SPECTRE_UNAFFECTED;
+ default:
+ case SMCCC_RET_NOT_SUPPORTED:
+ return SPECTRE_VULNERABLE;
+ }
+}
+
+static bool is_spectre_bhb_fw_affected(int scope)
+{
+ static bool system_affected;
+ enum mitigation_state fw_state;
+ bool has_smccc = (psci_ops.smccc_version >= SMCCC_VERSION_1_1);
+ static const struct midr_range spectre_bhb_firmware_mitigated_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
+ {},
+ };
+ bool cpu_in_list = is_midr_in_range_list(read_cpuid_id(),
+ spectre_bhb_firmware_mitigated_list);
+
+ if (scope != SCOPE_LOCAL_CPU)
+ return system_affected;
+
+ fw_state = spectre_bhb_get_cpu_fw_mitigation_state();
+ if (cpu_in_list || (has_smccc && fw_state == SPECTRE_MITIGATED)) {
+ system_affected = true;
+ return true;
+ }
+
+ return false;
+}
+
+static bool __maybe_unused supports_ecbhb(int scope)
+{
+ u64 mmfr1;
+
+ if (scope == SCOPE_LOCAL_CPU)
+ mmfr1 = read_sysreg_s(SYS_ID_AA64MMFR1_EL1);
+ else
+ mmfr1 = read_system_reg(SYS_ID_AA64MMFR1_EL1);
+
+ return cpuid_feature_extract_unsigned_field(mmfr1,
+ ID_AA64MMFR1_ECBHB_SHIFT);
+}
+
+bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry,
+ int scope)
+{
+ WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
+
+ if (supports_csv2p3(scope))
+ return false;
+
+ if (supports_clearbhb(scope))
+ return true;
+
+ if (spectre_bhb_loop_affected(scope))
+ return true;
+
+ if (is_spectre_bhb_fw_affected(scope))
+ return true;
+
+ return false;
+}
+
+#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
+static void this_cpu_set_vectors(enum arm64_bp_harden_el1_vectors slot)
+{
+ const char *v = arm64_get_bp_hardening_vector(slot);
+
+ if (slot < 0)
+ return;
+
+ __this_cpu_write(this_cpu_vector, v);
+
+ /*
+ * When KPTI is in use, the vectors are switched when exiting to
+ * user-space.
+ */
+ if (arm64_kernel_unmapped_at_el0())
+ return;
+
+ write_sysreg(v, vbar_el1);
+ isb();
+}
+
+#ifdef CONFIG_KVM
+static const char *kvm_bhb_get_vecs_end(const char *start)
+{
+ if (start == __smccc_workaround_3_smc_start)
+ return __smccc_workaround_3_smc_end;
+ else if (start == __spectre_bhb_loop_k8_start)
+ return __spectre_bhb_loop_k8_end;
+ else if (start == __spectre_bhb_loop_k24_start)
+ return __spectre_bhb_loop_k24_end;
+ else if (start == __spectre_bhb_loop_k32_start)
+ return __spectre_bhb_loop_k32_end;
+ else if (start == __spectre_bhb_clearbhb_start)
+ return __spectre_bhb_clearbhb_end;
+
+ return NULL;
+}
+
+static void kvm_setup_bhb_slot(const char *hyp_vecs_start)
+{
+ int cpu, slot = -1;
+ const char *hyp_vecs_end;
+
+ if (!IS_ENABLED(CONFIG_KVM) || !is_hyp_mode_available())
+ return;
+
+ hyp_vecs_end = kvm_bhb_get_vecs_end(hyp_vecs_start);
+ if (WARN_ON_ONCE(!hyp_vecs_start || !hyp_vecs_end))
+ return;
+
+ spin_lock(&bp_lock);
+ for_each_possible_cpu(cpu) {
+ if (per_cpu(bp_hardening_data.template_start, cpu) == hyp_vecs_start) {
+ slot = per_cpu(bp_hardening_data.hyp_vectors_slot, cpu);
+ break;
}
}
+
+ if (slot == -1) {
+ last_slot++;
+ BUG_ON(((__bp_harden_hyp_vecs_end - __bp_harden_hyp_vecs_start)
+ / SZ_2K) <= last_slot);
+ slot = last_slot;
+ __copy_hyp_vect_bpi(slot, hyp_vecs_start, hyp_vecs_end);
+ }
+
+ __this_cpu_write(bp_hardening_data.hyp_vectors_slot, slot);
+ __this_cpu_write(bp_hardening_data.template_start, hyp_vecs_start);
+ spin_unlock(&bp_lock);
}
+#else
+#define __smccc_workaround_3_smc_start NULL
+#define __spectre_bhb_loop_k8_start NULL
+#define __spectre_bhb_loop_k24_start NULL
+#define __spectre_bhb_loop_k32_start NULL
+#define __spectre_bhb_clearbhb_start NULL
+
+static void kvm_setup_bhb_slot(const char *hyp_vecs_start) { };
+#endif /* CONFIG_KVM */
-void update_cpu_errata_workarounds(void)
+static bool is_spectrev2_safe(void)
{
- update_cpu_capabilities(arm64_errata, "enabling workaround for");
+ return !is_midr_in_range_list(read_cpuid_id(),
+ arm64_bp_harden_smccc_cpus);
}
-void __init enable_errata_workarounds(void)
+void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry)
{
- enable_cpu_capabilities(arm64_errata);
+ enum mitigation_state fw_state, state = SPECTRE_VULNERABLE;
+
+ if (!is_spectre_bhb_affected(entry, SCOPE_LOCAL_CPU))
+ return;
+
+ if (!is_spectrev2_safe() && !__hardenbp_enab) {
+ /* No point mitigating Spectre-BHB alone. */
+ } else if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY)) {
+ pr_info_once("spectre-bhb mitigation disabled by compile time option\n");
+ } else if (cpu_mitigations_off()) {
+ pr_info_once("spectre-bhb mitigation disabled by command line option\n");
+ } else if (supports_ecbhb(SCOPE_LOCAL_CPU)) {
+ state = SPECTRE_MITIGATED;
+ } else if (supports_clearbhb(SCOPE_LOCAL_CPU)) {
+ kvm_setup_bhb_slot(__spectre_bhb_clearbhb_start);
+ this_cpu_set_vectors(EL1_VECTOR_BHB_CLEAR_INSN);
+
+ state = SPECTRE_MITIGATED;
+ } else if (spectre_bhb_loop_affected(SCOPE_LOCAL_CPU)) {
+ switch (spectre_bhb_loop_affected(SCOPE_SYSTEM)) {
+ case 8:
+ kvm_setup_bhb_slot(__spectre_bhb_loop_k8_start);
+ break;
+ case 24:
+ kvm_setup_bhb_slot(__spectre_bhb_loop_k24_start);
+ break;
+ case 32:
+ kvm_setup_bhb_slot(__spectre_bhb_loop_k32_start);
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ }
+ this_cpu_set_vectors(EL1_VECTOR_BHB_LOOP);
+
+ state = SPECTRE_MITIGATED;
+ } else if (is_spectre_bhb_fw_affected(SCOPE_LOCAL_CPU)) {
+ fw_state = spectre_bhb_get_cpu_fw_mitigation_state();
+ if (fw_state == SPECTRE_MITIGATED) {
+ kvm_setup_bhb_slot(__smccc_workaround_3_smc_start);
+ this_cpu_set_vectors(EL1_VECTOR_BHB_FW);
+
+ /*
+ * With WA3 in the vectors, the WA1 calls can be
+ * removed.
+ */
+ __this_cpu_write(bp_hardening_data.fn, NULL);
+
+ state = SPECTRE_MITIGATED;
+ }
+ }
+
+ update_mitigation_state(&spectre_bhb_state, state);
+}
+
+/* Patched to correct the immediate */
+void __init spectre_bhb_patch_loop_iter(struct alt_instr *alt,
+ __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+ u8 rd;
+ u32 insn;
+ u16 loop_count = spectre_bhb_loop_affected(SCOPE_SYSTEM);
+
+ BUG_ON(nr_inst != 1); /* MOV -> MOV */
+
+ if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY))
+ return;
+
+ insn = le32_to_cpu(*origptr);
+ rd = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RD, insn);
+ insn = aarch64_insn_gen_movewide(rd, loop_count, 0,
+ AARCH64_INSN_VARIANT_64BIT,
+ AARCH64_INSN_MOVEWIDE_ZERO);
+ *updptr++ = cpu_to_le32(insn);
}
+#endif /* CONFIG_HARDEN_BRANCH_PREDICTOR */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 8cf001baee21..9b7e7d2f236e 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -20,15 +20,18 @@
#include <linux/bsearch.h>
#include <linux/cpumask.h>
+#include <linux/percpu.h>
#include <linux/sort.h>
#include <linux/stop_machine.h>
#include <linux/types.h>
+
#include <asm/cpu.h>
#include <asm/cpufeature.h>
#include <asm/cpu_ops.h>
#include <asm/mmu_context.h>
#include <asm/processor.h>
#include <asm/sysreg.h>
+#include <asm/vectors.h>
#include <asm/virt.h>
unsigned long elf_hwcap __read_mostly;
@@ -49,6 +52,8 @@ unsigned int compat_elf_hwcap2 __read_mostly;
DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);
EXPORT_SYMBOL(cpu_hwcaps);
+DEFINE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector) = vectors;
+
DEFINE_STATIC_KEY_ARRAY_FALSE(cpu_hwcap_keys, ARM64_NCAPS);
EXPORT_SYMBOL(cpu_hwcap_keys);
@@ -93,6 +98,11 @@ static const struct arm64_ftr_bits ftr_id_aa64isar0[] = {
ARM64_FTR_END,
};
+static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+ ARM64_FTR_BITS(FTR_STRICT, FTR_HIGHER_SAFE, ID_AA64ISAR2_CLEARBHB_SHIFT, 4, 0),
+ ARM64_FTR_END,
+};
+
static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = {
ARM64_FTR_BITS(FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV3_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV2_SHIFT, 4, 0),
@@ -327,6 +337,7 @@ static const struct __ftr_reg_entry {
/* Op1 = 0, CRn = 0, CRm = 6 */
ARM64_FTR_REG(SYS_ID_AA64ISAR0_EL1, ftr_id_aa64isar0),
ARM64_FTR_REG(SYS_ID_AA64ISAR1_EL1, ftr_aa64raz),
+ ARM64_FTR_REG(SYS_ID_AA64ISAR2_EL1, ftr_id_aa64isar2),
/* Op1 = 0, CRn = 0, CRm = 7 */
ARM64_FTR_REG(SYS_ID_AA64MMFR0_EL1, ftr_id_aa64mmfr0),
@@ -439,6 +450,9 @@ static void __init init_cpu_ftr_reg(u32 sys_reg, u64 new)
reg->strict_mask = strict_mask;
}
+extern const struct arm64_cpu_capabilities arm64_errata[];
+static void update_cpu_errata_workarounds(void);
+
void __init init_cpu_features(struct cpuinfo_arm64 *info)
{
/* Before we start using the tables, make sure it is sorted */
@@ -451,6 +465,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info)
init_cpu_ftr_reg(SYS_ID_AA64DFR1_EL1, info->reg_id_aa64dfr1);
init_cpu_ftr_reg(SYS_ID_AA64ISAR0_EL1, info->reg_id_aa64isar0);
init_cpu_ftr_reg(SYS_ID_AA64ISAR1_EL1, info->reg_id_aa64isar1);
+ init_cpu_ftr_reg(SYS_ID_AA64ISAR2_EL1, info->reg_id_aa64isar2);
init_cpu_ftr_reg(SYS_ID_AA64MMFR0_EL1, info->reg_id_aa64mmfr0);
init_cpu_ftr_reg(SYS_ID_AA64MMFR1_EL1, info->reg_id_aa64mmfr1);
init_cpu_ftr_reg(SYS_ID_AA64MMFR2_EL1, info->reg_id_aa64mmfr2);
@@ -476,6 +491,11 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info)
init_cpu_ftr_reg(SYS_MVFR2_EL1, info->reg_mvfr2);
}
+ /*
+ * Run the errata work around checks on the boot CPU, once we have
+ * initialised the cpu feature infrastructure.
+ */
+ update_cpu_errata_workarounds();
}
static void update_cpu_ftr_reg(struct arm64_ftr_reg *reg, u64 new)
@@ -557,6 +577,8 @@ void update_cpu_features(int cpu,
info->reg_id_aa64isar0, boot->reg_id_aa64isar0);
taint |= check_update_ftr_reg(SYS_ID_AA64ISAR1_EL1, cpu,
info->reg_id_aa64isar1, boot->reg_id_aa64isar1);
+ taint |= check_update_ftr_reg(SYS_ID_AA64ISAR2_EL1, cpu,
+ info->reg_id_aa64isar2, boot->reg_id_aa64isar2);
/*
* Differing PARange support is fine as long as all peripherals and
@@ -676,6 +698,7 @@ static u64 __raw_read_system_reg(u32 sys_id)
case SYS_ID_AA64MMFR2_EL1: return read_cpuid(ID_AA64MMFR2_EL1);
case SYS_ID_AA64ISAR0_EL1: return read_cpuid(ID_AA64ISAR0_EL1);
case SYS_ID_AA64ISAR1_EL1: return read_cpuid(ID_AA64ISAR1_EL1);
+ case SYS_ID_AA64ISAR2_EL1: return read_cpuid(ID_AA64ISAR2_EL1);
case SYS_CNTFRQ_EL0: return read_cpuid(CNTFRQ_EL0);
case SYS_CTR_EL0: return read_cpuid(CTR_EL0);
@@ -728,13 +751,11 @@ static bool has_useable_gicv3_cpuif(const struct arm64_cpu_capabilities *entry,
static bool has_no_hw_prefetch(const struct arm64_cpu_capabilities *entry, int __unused)
{
u32 midr = read_cpuid_id();
- u32 rv_min, rv_max;
/* Cavium ThunderX pass 1.x and 2.x */
- rv_min = 0;
- rv_max = (1 << MIDR_VARIANT_SHIFT) | MIDR_REVISION_MASK;
-
- return MIDR_IS_CPU_MODEL_RANGE(midr, MIDR_THUNDERX, rv_min, rv_max);
+ return MIDR_IS_CPU_MODEL_RANGE(midr, MIDR_THUNDERX,
+ MIDR_CPU_VAR_REV(0, 0),
+ MIDR_CPU_VAR_REV(1, MIDR_REVISION_MASK));
}
static bool runs_at_el2(const struct arm64_cpu_capabilities *entry, int __unused)
@@ -761,6 +782,17 @@ static int __kpti_forced; /* 0: not forced, >0: forced on, <0: forced off */
static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
int __unused)
{
+ /* List of CPUs that are not vulnerable and don't need KPTI */
+ static const struct midr_range kpti_safe_list[] = {
+ MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
+ MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A35),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A53),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+ };
char const *str = "command line option";
u64 pfr0 = read_system_reg(SYS_ID_AA64PFR0_EL1);
@@ -786,23 +818,16 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
return true;
/* Don't force KPTI for CPUs that are not vulnerable */
- switch (read_cpuid_id() & MIDR_CPU_MODEL_MASK) {
- case MIDR_CAVIUM_THUNDERX2:
- case MIDR_BRCM_VULCAN:
- case MIDR_CORTEX_A53:
- case MIDR_CORTEX_A55:
- case MIDR_CORTEX_A57:
- case MIDR_CORTEX_A72:
- case MIDR_CORTEX_A73:
+ if (is_midr_in_range_list(read_cpuid_id(), kpti_safe_list))
return false;
- }
/* Defer to CPU feature registers */
return !cpuid_feature_extract_unsigned_field(pfr0,
ID_AA64PFR0_CSV3_SHIFT);
}
-static int kpti_install_ng_mappings(void *__unused)
+static void
+kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
{
typedef void (kpti_remap_fn)(int, int, phys_addr_t);
extern kpti_remap_fn idmap_kpti_install_ng_mappings;
@@ -811,8 +836,14 @@ static int kpti_install_ng_mappings(void *__unused)
static bool kpti_applied = false;
int cpu = smp_processor_id();
+ if (__this_cpu_read(this_cpu_vector) == vectors) {
+ const char *v = arm64_get_bp_hardening_vector(EL1_VECTOR_KPTI);
+
+ __this_cpu_write(this_cpu_vector, v);
+ }
+
if (kpti_applied)
- return 0;
+ return;
remap_fn = (void *)__pa_symbol(idmap_kpti_install_ng_mappings);
@@ -823,7 +854,7 @@ static int kpti_install_ng_mappings(void *__unused)
if (!cpu)
kpti_applied = true;
- return 0;
+ return;
}
static int __init parse_kpti(char *str)
@@ -840,7 +871,7 @@ static int __init parse_kpti(char *str)
early_param("kpti", parse_kpti);
#endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
-static int cpu_copy_el2regs(void *__unused)
+static void cpu_copy_el2regs(const struct arm64_cpu_capabilities *__unused)
{
/*
* Copy register values that aren't redirected by hardware.
@@ -852,15 +883,13 @@ static int cpu_copy_el2regs(void *__unused)
*/
if (!alternatives_applied)
write_sysreg(read_sysreg(tpidr_el1), tpidr_el2);
-
- return 0;
}
static const struct arm64_cpu_capabilities arm64_features[] = {
{
.desc = "GIC system register CPU interface",
.capability = ARM64_HAS_SYSREG_GIC_CPUIF,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_useable_gicv3_cpuif,
.sys_reg = SYS_ID_AA64PFR0_EL1,
.field_pos = ID_AA64PFR0_GIC_SHIFT,
@@ -871,20 +900,20 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
{
.desc = "Privileged Access Never",
.capability = ARM64_HAS_PAN,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
.sys_reg = SYS_ID_AA64MMFR1_EL1,
.field_pos = ID_AA64MMFR1_PAN_SHIFT,
.sign = FTR_UNSIGNED,
.min_field_value = 1,
- .enable = cpu_enable_pan,
+ .cpu_enable = cpu_enable_pan,
},
#endif /* CONFIG_ARM64_PAN */
#if defined(CONFIG_AS_LSE) && defined(CONFIG_ARM64_LSE_ATOMICS)
{
.desc = "LSE atomic instructions",
.capability = ARM64_HAS_LSE_ATOMICS,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
.sys_reg = SYS_ID_AA64ISAR0_EL1,
.field_pos = ID_AA64ISAR0_ATOMICS_SHIFT,
@@ -895,39 +924,42 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
{
.desc = "Software prefetching using PRFM",
.capability = ARM64_HAS_NO_HW_PREFETCH,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_no_hw_prefetch,
},
#ifdef CONFIG_ARM64_UAO
{
.desc = "User Access Override",
.capability = ARM64_HAS_UAO,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
.sys_reg = SYS_ID_AA64MMFR2_EL1,
.field_pos = ID_AA64MMFR2_UAO_SHIFT,
.min_field_value = 1,
- .enable = cpu_enable_uao,
+ /*
+ * We rely on stop_machine() calling uao_thread_switch() to set
+ * UAO immediately after patching.
+ */
},
#endif /* CONFIG_ARM64_UAO */
#ifdef CONFIG_ARM64_PAN
{
.capability = ARM64_ALT_PAN_NOT_UAO,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = cpufeature_pan_not_uao,
},
#endif /* CONFIG_ARM64_PAN */
{
.desc = "Virtualization Host Extensions",
.capability = ARM64_HAS_VIRT_HOST_EXTN,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = runs_at_el2,
- .enable = cpu_copy_el2regs,
+ .cpu_enable = cpu_copy_el2regs,
},
{
.desc = "32-bit EL0 Support",
.capability = ARM64_HAS_32BIT_EL0,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
.sys_reg = SYS_ID_AA64PFR0_EL1,
.sign = FTR_UNSIGNED,
@@ -937,31 +969,31 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
{
.desc = "Reduced HYP mapping offset",
.capability = ARM64_HYP_OFFSET_LOW,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = hyp_offset_low,
},
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
{
.desc = "Kernel page table isolation (KPTI)",
.capability = ARM64_UNMAP_KERNEL_AT_EL0,
- .def_scope = SCOPE_SYSTEM,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = unmap_kernel_at_el0,
- .enable = kpti_install_ng_mappings,
+ .cpu_enable = kpti_install_ng_mappings,
},
#endif
{},
};
-#define HWCAP_CAP(reg, field, s, min_value, type, cap) \
+#define HWCAP_CAP(reg, field, s, min_value, cap_type, cap) \
{ \
.desc = #cap, \
- .def_scope = SCOPE_SYSTEM, \
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE, \
.matches = has_cpuid_feature, \
.sys_reg = reg, \
.field_pos = field, \
.sign = s, \
.min_field_value = min_value, \
- .hwcap_type = type, \
+ .hwcap_type = cap_type, \
.hwcap = cap, \
}
@@ -1038,7 +1070,7 @@ static bool cpus_have_elf_hwcap(const struct arm64_cpu_capabilities *cap)
static void __init setup_elf_hwcaps(const struct arm64_cpu_capabilities *hwcaps)
{
for (; hwcaps->matches; hwcaps++)
- if (hwcaps->matches(hwcaps, hwcaps->def_scope))
+ if (hwcaps->matches(hwcaps, cpucap_default_scope(hwcaps)))
cap_set_elf_hwcap(hwcaps);
}
@@ -1061,11 +1093,11 @@ static bool __this_cpu_has_cap(const struct arm64_cpu_capabilities *cap_array,
return false;
}
-void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps,
- const char *info)
+static void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps,
+ const char *info)
{
for (; caps->matches; caps++) {
- if (!caps->matches(caps, caps->def_scope))
+ if (!caps->matches(caps, cpucap_default_scope(caps)))
continue;
if (!cpus_have_cap(caps->capability) && caps->desc)
@@ -1074,11 +1106,20 @@ void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps,
}
}
+static int __enable_cpu_capability(void *arg)
+{
+ const struct arm64_cpu_capabilities *cap = arg;
+
+ cap->cpu_enable(cap);
+ return 0;
+}
+
/*
* Run through the enabled capabilities and enable() it on all active
* CPUs
*/
-void __init enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps)
+static void __init
+enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps)
{
for (; caps->matches; caps++) {
unsigned int num = caps->capability;
@@ -1089,14 +1130,15 @@ void __init enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps)
/* Ensure cpus_have_const_cap(num) works */
static_branch_enable(&cpu_hwcap_keys[num]);
- if (caps->enable) {
+ if (caps->cpu_enable) {
/*
* Use stop_machine() as it schedules the work allowing
* us to modify PSTATE, instead of on_each_cpu() which
* uses an IPI, giving us a PSTATE that disappears when
* we return.
*/
- stop_machine(caps->enable, (void *)caps, cpu_online_mask);
+ stop_machine(__enable_cpu_capability, (void *)caps,
+ cpu_online_mask);
}
}
}
@@ -1154,11 +1196,44 @@ verify_local_cpu_features(const struct arm64_cpu_capabilities *caps_list)
smp_processor_id(), caps->desc);
cpu_die_early();
}
- if (caps->enable)
- caps->enable((void *)caps);
+ if (caps->cpu_enable)
+ caps->cpu_enable(caps);
}
}
+/*
+ * The CPU Errata work arounds are detected and applied at boot time
+ * and the related information is freed soon after. If the new CPU requires
+ * an errata not detected at boot, fail this CPU.
+ */
+static void verify_local_cpu_errata_workarounds(void)
+{
+ const struct arm64_cpu_capabilities *caps = arm64_errata;
+
+ for (; caps->matches; caps++) {
+ if (cpus_have_cap(caps->capability)) {
+ if (caps->cpu_enable)
+ caps->cpu_enable(caps);
+ } else if (caps->matches(caps, SCOPE_LOCAL_CPU)) {
+ pr_crit("CPU%d: Requires work around for %s, not detected"
+ " at boot time\n",
+ smp_processor_id(),
+ caps->desc ? : "an erratum");
+ cpu_die_early();
+ }
+ }
+}
+
+static void update_cpu_errata_workarounds(void)
+{
+ update_cpu_capabilities(arm64_errata, "enabling workaround for");
+}
+
+static void __init enable_errata_workarounds(void)
+{
+ enable_cpu_capabilities(arm64_errata);
+}
+
/*
* Run through the enabled system capabilities and enable() it on this CPU.
* The capabilities were decided based on the available CPUs at the boot time.
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index b3d5b3e8fbcb..4c09f87650f4 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -335,6 +335,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
info->reg_id_aa64dfr1 = read_cpuid(ID_AA64DFR1_EL1);
info->reg_id_aa64isar0 = read_cpuid(ID_AA64ISAR0_EL1);
info->reg_id_aa64isar1 = read_cpuid(ID_AA64ISAR1_EL1);
+ info->reg_id_aa64isar2 = read_cpuid(ID_AA64ISAR2_EL1);
info->reg_id_aa64mmfr0 = read_cpuid(ID_AA64MMFR0_EL1);
info->reg_id_aa64mmfr1 = read_cpuid(ID_AA64MMFR1_EL1);
info->reg_id_aa64mmfr2 = read_cpuid(ID_AA64MMFR2_EL1);
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 209a6a85ae5f..1e687b144eaa 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -74,26 +74,33 @@
.macro kernel_ventry, el, label, regsize = 64
.align 7
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-alternative_if ARM64_UNMAP_KERNEL_AT_EL0
+.Lventry_start\@:
.if \el == 0
+ /*
+ * This must be the first instruction of the EL0 vector entries. It is
+ * skipped by the trampoline vectors, to trigger the cleanup.
+ */
+ b .Lskip_tramp_vectors_cleanup\@
.if \regsize == 64
mrs x30, tpidrro_el0
msr tpidrro_el0, xzr
.else
mov x30, xzr
.endif
+.Lskip_tramp_vectors_cleanup\@:
.endif
-alternative_else_nop_endif
-#endif
sub sp, sp, #S_FRAME_SIZE
b el\()\el\()_\label
+.org .Lventry_start\@ + 128 // Did we overflow the ventry slot?
.endm
- .macro tramp_alias, dst, sym
+ .macro tramp_alias, dst, sym, tmp
mov_q \dst, TRAMP_VALIAS
- add \dst, \dst, #(\sym - .entry.tramp.text)
+ adr_l \tmp, \sym
+ add \dst, \dst, \tmp
+ adr_l \tmp, .entry.tramp.text
+ sub \dst, \dst, \tmp
.endm
// This macro corrupts x0-x3. It is the caller's duty
@@ -238,21 +245,25 @@ alternative_else_nop_endif
ldp x24, x25, [sp, #16 * 12]
ldp x26, x27, [sp, #16 * 13]
ldp x28, x29, [sp, #16 * 14]
- ldr lr, [sp, #S_LR]
- add sp, sp, #S_FRAME_SIZE // restore sp
.if \el == 0
-alternative_insn eret, nop, ARM64_UNMAP_KERNEL_AT_EL0
+alternative_if_not ARM64_UNMAP_KERNEL_AT_EL0
+ ldr lr, [sp, #S_LR]
+ add sp, sp, #S_FRAME_SIZE // restore sp
+ eret
+alternative_else_nop_endif
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
bne 4f
- msr far_el1, x30
- tramp_alias x30, tramp_exit_native
+ msr far_el1, x29
+ tramp_alias x30, tramp_exit_native, x29
br x30
4:
- tramp_alias x30, tramp_exit_compat
+ tramp_alias x30, tramp_exit_compat, x29
br x30
#endif
.else
+ ldr lr, [sp, #S_LR]
+ add sp, sp, #S_FRAME_SIZE // restore sp
eret
.endif
.endm
@@ -889,12 +900,7 @@ __ni_sys_trace:
.popsection // .entry.text
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-/*
- * Exception vectors trampoline.
- */
- .pushsection ".entry.tramp.text", "ax"
-
+ // Move from tramp_pg_dir to swapper_pg_dir
.macro tramp_map_kernel, tmp
mrs \tmp, ttbr1_el1
sub \tmp, \tmp, #SWAPPER_DIR_SIZE
@@ -914,12 +920,47 @@ __ni_sys_trace:
*/
.endm
- .macro tramp_ventry, regsize = 64
+ .macro tramp_data_page dst
+ adr_l \dst, .entry.tramp.text
+ sub \dst, \dst, PAGE_SIZE
+ .endm
+
+ .macro tramp_data_read_var dst, var
+#ifdef CONFIG_RANDOMIZE_BASE
+ tramp_data_page \dst
+ add \dst, \dst, #:lo12:__entry_tramp_data_\var
+ ldr \dst, [\dst]
+#else
+ ldr \dst, =\var
+#endif
+ .endm
+
+#define BHB_MITIGATION_NONE 0
+#define BHB_MITIGATION_LOOP 1
+#define BHB_MITIGATION_FW 2
+#define BHB_MITIGATION_INSN 3
+
+ .macro tramp_ventry, vector_start, regsize, kpti, bhb
.align 7
1:
.if \regsize == 64
msr tpidrro_el0, x30 // Restored in kernel_ventry
.endif
+
+ .if \bhb == BHB_MITIGATION_LOOP
+ /*
+ * This sequence must appear before the first indirect branch. i.e. the
+ * ret out of tramp_ventry. It appears here because x30 is free.
+ */
+ __mitigate_spectre_bhb_loop x30
+ .endif // \bhb == BHB_MITIGATION_LOOP
+
+ .if \bhb == BHB_MITIGATION_INSN
+ clearbhb
+ isb
+ .endif // \bhb == BHB_MITIGATION_INSN
+
+ .if \kpti == 1
/*
* Defend against branch aliasing attacks by pushing a dummy
* entry onto the return stack and using a RET instruction to
@@ -929,43 +970,74 @@ __ni_sys_trace:
b .
2:
tramp_map_kernel x30
-#ifdef CONFIG_RANDOMIZE_BASE
- adr x30, tramp_vectors + PAGE_SIZE
- isb
- ldr x30, [x30]
-#else
- ldr x30, =vectors
-#endif
- prfm plil1strm, [x30, #(1b - tramp_vectors)]
+ tramp_data_read_var x30, vectors
+ prfm plil1strm, [x30, #(1b - \vector_start)]
msr vbar_el1, x30
- add x30, x30, #(1b - tramp_vectors)
isb
+ .else
+ ldr x30, =vectors
+ .endif // \kpti == 1
+
+ .if \bhb == BHB_MITIGATION_FW
+ /*
+ * The firmware sequence must appear before the first indirect branch.
+ * i.e. the ret out of tramp_ventry. But it also needs the stack to be
+ * mapped to save/restore the registers the SMC clobbers.
+ */
+ __mitigate_spectre_bhb_fw
+ .endif // \bhb == BHB_MITIGATION_FW
+
+ add x30, x30, #(1b - \vector_start + 4)
ret
+.org 1b + 128 // Did we overflow the ventry slot?
.endm
.macro tramp_exit, regsize = 64
- adr x30, tramp_vectors
+ tramp_data_read_var x30, this_cpu_vector
+alternative_if_not ARM64_HAS_VIRT_HOST_EXTN
+ mrs x29, tpidr_el1
+alternative_else
+ mrs x29, tpidr_el2
+alternative_endif
+ ldr x30, [x30, x29]
+
msr vbar_el1, x30
- tramp_unmap_kernel x30
+ ldr lr, [sp, #S_LR]
+ tramp_unmap_kernel x29
.if \regsize == 64
- mrs x30, far_el1
+ mrs x29, far_el1
.endif
+ add sp, sp, #S_FRAME_SIZE // restore sp
eret
.endm
- .align 11
-ENTRY(tramp_vectors)
+ .macro generate_tramp_vector, kpti, bhb
+.Lvector_start\@:
.space 0x400
- tramp_ventry
- tramp_ventry
- tramp_ventry
- tramp_ventry
+ .rept 4
+ tramp_ventry .Lvector_start\@, 64, \kpti, \bhb
+ .endr
+ .rept 4
+ tramp_ventry .Lvector_start\@, 32, \kpti, \bhb
+ .endr
+ .endm
- tramp_ventry 32
- tramp_ventry 32
- tramp_ventry 32
- tramp_ventry 32
+#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
+/*
+ * Exception vectors trampoline.
+ * The order must match __bp_harden_el1_vectors and the
+ * arm64_bp_harden_el1_vectors enum.
+ */
+ .pushsection ".entry.tramp.text", "ax"
+ .align 11
+ENTRY(tramp_vectors)
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+ generate_tramp_vector kpti=1, bhb=BHB_MITIGATION_LOOP
+ generate_tramp_vector kpti=1, bhb=BHB_MITIGATION_FW
+ generate_tramp_vector kpti=1, bhb=BHB_MITIGATION_INSN
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+ generate_tramp_vector kpti=1, bhb=BHB_MITIGATION_NONE
END(tramp_vectors)
ENTRY(tramp_exit_native)
@@ -983,11 +1055,54 @@ END(tramp_exit_compat)
.align PAGE_SHIFT
.globl __entry_tramp_data_start
__entry_tramp_data_start:
+__entry_tramp_data_vectors:
.quad vectors
+#ifdef CONFIG_ARM_SDE_INTERFACE
+__entry_tramp_data___sdei_asm_trampoline_next_handler:
+ .quad __sdei_asm_handler
+#endif /* CONFIG_ARM_SDE_INTERFACE */
+__entry_tramp_data_this_cpu_vector:
+ .quad this_cpu_vector
.popsection // .rodata
#endif /* CONFIG_RANDOMIZE_BASE */
#endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
+/*
+ * Exception vectors for spectre mitigations on entry from EL1 when
+ * kpti is not in use.
+ */
+ .macro generate_el1_vector, bhb
+.Lvector_start\@:
+ kernel_ventry 1, sync_invalid // Synchronous EL1t
+ kernel_ventry 1, irq_invalid // IRQ EL1t
+ kernel_ventry 1, fiq_invalid // FIQ EL1t
+ kernel_ventry 1, error_invalid // Error EL1t
+
+ kernel_ventry 1, sync // Synchronous EL1h
+ kernel_ventry 1, irq // IRQ EL1h
+ kernel_ventry 1, fiq_invalid // FIQ EL1h
+ kernel_ventry 1, error_invalid // Error EL1h
+
+ .rept 4
+ tramp_ventry .Lvector_start\@, 64, 0, \bhb
+ .endr
+ .rept 4
+ tramp_ventry .Lvector_start\@, 32, 0, \bhb
+ .endr
+ .endm
+
+/* The order must match tramp_vecs and the arm64_bp_harden_el1_vectors enum. */
+ .pushsection ".entry.text", "ax"
+ .align 11
+ENTRY(__bp_harden_el1_vectors)
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+ generate_el1_vector bhb=BHB_MITIGATION_LOOP
+ generate_el1_vector bhb=BHB_MITIGATION_FW
+ generate_el1_vector bhb=BHB_MITIGATION_INSN
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+END(__bp_harden_el1_vectors)
+ .popsection
+
/*
* Special system call wrappers.
*/
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 1d5890f19ca3..ee34be8bed03 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -26,6 +26,7 @@
#include <linux/hardirq.h>
#include <asm/fpsimd.h>
+#include <asm/cpufeature.h>
#include <asm/cputype.h>
#define FPEXC_IOF (1 << 0)
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 6f2ac4fc66ca..fbfad5a83526 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -234,8 +234,8 @@ static int __kprobes aarch64_insn_patch_text_cb(void *arg)
int i, ret = 0;
struct aarch64_insn_patch *pp = arg;
- /* The first CPU becomes master */
- if (atomic_inc_return(&pp->cpu_count) == 1) {
+ /* The last CPU becomes master */
+ if (atomic_inc_return(&pp->cpu_count) == num_online_cpus()) {
for (i = 0; ret == 0 && i < pp->insn_cnt; i++)
ret = aarch64_insn_patch_text_nosync(pp->text_addrs[i],
pp->new_insns[i]);
@@ -418,6 +418,35 @@ u32 __kprobes aarch64_insn_encode_immediate(enum aarch64_insn_imm_type type,
return insn;
}
+u32 aarch64_insn_decode_register(enum aarch64_insn_register_type type,
+ u32 insn)
+{
+ int shift;
+
+ switch (type) {
+ case AARCH64_INSN_REGTYPE_RT:
+ case AARCH64_INSN_REGTYPE_RD:
+ shift = 0;
+ break;
+ case AARCH64_INSN_REGTYPE_RN:
+ shift = 5;
+ break;
+ case AARCH64_INSN_REGTYPE_RT2:
+ case AARCH64_INSN_REGTYPE_RA:
+ shift = 10;
+ break;
+ case AARCH64_INSN_REGTYPE_RM:
+ shift = 16;
+ break;
+ default:
+ pr_err("%s: unknown register type encoding %d\n", __func__,
+ type);
+ return 0;
+ }
+
+ return (insn >> shift) & GENMASK(4, 0);
+}
+
static u32 aarch64_insn_encode_register(enum aarch64_insn_register_type type,
u32 insn,
enum aarch64_insn_register reg)
diff --git a/arch/arm64/kernel/module.lds b/arch/arm64/kernel/module.lds
index 8949f6c6f729..05881e2b414c 100644
--- a/arch/arm64/kernel/module.lds
+++ b/arch/arm64/kernel/module.lds
@@ -1,3 +1,3 @@
SECTIONS {
- .plt (NOLOAD) : { BYTE(0) }
+ .plt : { BYTE(0) }
}
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 13b9c20a84b5..ea4aedb6bbdc 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -444,12 +444,6 @@ void __init smp_prepare_boot_cpu(void)
jump_label_init();
cpuinfo_store_boot_cpu();
save_boot_cpu_run_el();
- /*
- * Run the errata work around checks on the boot CPU, once we have
- * initialised the cpu feature infrastructure from
- * cpuinfo_store_boot_cpu() above.
- */
- update_cpu_errata_workarounds();
}
static u64 __init of_get_cpu_mpidr(struct device_node *dn)
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index b6fd2a21b015..adf18b9a2c03 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -34,6 +34,7 @@
#include <asm/atomic.h>
#include <asm/bug.h>
+#include <asm/cpufeature.h>
#include <asm/debug-monitors.h>
#include <asm/esr.h>
#include <asm/insn.h>
@@ -432,10 +433,9 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
force_signal_inject(SIGILL, ILL_ILLOPC, regs, 0);
}
-int cpu_enable_cache_maint_trap(void *__unused)
+void cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused)
{
config_sctlr_el1(SCTLR_EL1_UCI, 0);
- return 0;
}
#define __user_cache_maint(insn, address, res) \
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index fa3ffad50a61..17fc1671b990 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -261,7 +261,7 @@ ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1))
<= SZ_4K, "Hibernate exit text too big or misaligned")
#endif
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) == PAGE_SIZE,
+ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) <= 3*PAGE_SIZE,
"Entry trampoline text too big")
#endif
/*
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index 7ced1fb93d07..d14a8c89d08e 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -136,6 +136,10 @@ el1_hvc_guest:
/* ARM_SMCCC_ARCH_WORKAROUND_2 handling */
eor w1, w1, #(ARM_SMCCC_ARCH_WORKAROUND_1 ^ \
ARM_SMCCC_ARCH_WORKAROUND_2)
+ cbz w1, wa_epilogue
+
+ eor w1, w1, #(ARM_SMCCC_ARCH_WORKAROUND_2 ^ \
+ ARM_SMCCC_ARCH_WORKAROUND_3)
cbnz w1, el1_trap
#ifdef CONFIG_ARM64_SSBD
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index 0a2f37bceab0..1751d2763cc1 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -26,7 +26,7 @@
#include <asm/kvm_emulate.h>
#include <asm/kvm_hyp.h>
#include <asm/uaccess.h>
-
+#include <asm/vectors.h>
extern struct exception_table_entry __start___kvm_ex_table;
extern struct exception_table_entry __stop___kvm_ex_table;
@@ -107,11 +107,14 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu)
static void __hyp_text __deactivate_traps_vhe(void)
{
- extern char vectors[]; /* kernel exception vectors */
+ const char *host_vectors = vectors;
write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);
write_sysreg(CPACR_EL1_FPEN, cpacr_el1);
- write_sysreg(vectors, vbar_el1);
+
+ if (!arm64_kernel_unmapped_at_el0())
+ host_vectors = __this_cpu_read(this_cpu_vector);
+ write_sysreg(host_vectors, vbar_el1);
}
static void __hyp_text __deactivate_traps_nvhe(void)
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index f3d3f2e97add..a0c3efbc3717 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -727,7 +727,7 @@ asmlinkage int __exception do_debug_exception(unsigned long addr_if_watchpoint,
NOKPROBE_SYMBOL(do_debug_exception);
#ifdef CONFIG_ARM64_PAN
-int cpu_enable_pan(void *__unused)
+void cpu_enable_pan(const struct arm64_cpu_capabilities *__unused)
{
/*
* We modify PSTATE. This won't work from irq context as the PSTATE
@@ -737,20 +737,5 @@ int cpu_enable_pan(void *__unused)
config_sctlr_el1(SCTLR_EL1_SPAN, 0);
asm(SET_PSTATE_PAN(1));
- return 0;
}
#endif /* CONFIG_ARM64_PAN */
-
-#ifdef CONFIG_ARM64_UAO
-/*
- * Kernel threads have fs=KERNEL_DS by default, and don't need to call
- * set_fs(), devtmpfs in particular relies on this behaviour.
- * We need to enable the feature at runtime (instead of adding it to
- * PSR_MODE_EL1h) as the feature may not be implemented by the cpu.
- */
-int cpu_enable_uao(void *__unused)
-{
- asm(SET_PSTATE_UAO(1));
- return 0;
-}
-#endif /* CONFIG_ARM64_UAO */
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 60be5bc0984a..36bd50091c4b 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -438,6 +438,7 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
static int __init map_entry_trampoline(void)
{
+ int i;
extern char __entry_tramp_text_start[];
pgprot_t prot = rodata_enabled ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC;
@@ -448,11 +449,15 @@ static int __init map_entry_trampoline(void)
/* Map only the text into the trampoline page table */
memset(tramp_pg_dir, 0, PGD_SIZE);
- __create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS, PAGE_SIZE,
- prot, pgd_pgtable_alloc, 0);
+ __create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS,
+ entry_tramp_text_size(), prot, pgd_pgtable_alloc,
+ 0);
/* Map both the text and data into the kernel page table */
- __set_fixmap(FIX_ENTRY_TRAMP_TEXT, pa_start, prot);
+ for (i = 0; i < DIV_ROUND_UP(entry_tramp_text_size(), PAGE_SIZE); i++)
+ __set_fixmap(FIX_ENTRY_TRAMP_TEXT1 - i,
+ pa_start + i * PAGE_SIZE, prot);
+
if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) {
extern char __entry_tramp_data_start[];
diff --git a/arch/mips/dec/prom/Makefile b/arch/mips/dec/prom/Makefile
index ae73e42ac20b..4c369359cdab 100644
--- a/arch/mips/dec/prom/Makefile
+++ b/arch/mips/dec/prom/Makefile
@@ -5,4 +5,4 @@
lib-y += init.o memory.o cmdline.o identify.o console.o
-lib-$(CONFIG_32BIT) += locore.o
+lib-$(CONFIG_CPU_R3000) += locore.o
diff --git a/arch/mips/include/asm/dec/prom.h b/arch/mips/include/asm/dec/prom.h
index b59a2103b61a..09538ff5e924 100644
--- a/arch/mips/include/asm/dec/prom.h
+++ b/arch/mips/include/asm/dec/prom.h
@@ -47,16 +47,11 @@
*/
#define REX_PROM_MAGIC 0x30464354
-#ifdef CONFIG_64BIT
-
-#define prom_is_rex(magic) 1 /* KN04 and KN05 are REX PROMs. */
-
-#else /* !CONFIG_64BIT */
-
-#define prom_is_rex(magic) ((magic) == REX_PROM_MAGIC)
-
-#endif /* !CONFIG_64BIT */
-
+/* KN04 and KN05 are REX PROMs, so only do the check for R3k systems. */
+static inline bool prom_is_rex(u32 magic)
+{
+ return !IS_ENABLED(CONFIG_CPU_R3000) || magic == REX_PROM_MAGIC;
+}
/*
* 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's and
diff --git a/arch/mips/include/asm/setup.h b/arch/mips/include/asm/setup.h
index 4f5279a8308d..e301967fcffd 100644
--- a/arch/mips/include/asm/setup.h
+++ b/arch/mips/include/asm/setup.h
@@ -13,7 +13,7 @@ static inline void setup_8250_early_printk_port(unsigned long base,
unsigned int reg_shift, unsigned int timeout) {}
#endif
-extern void set_handler(unsigned long offset, void *addr, unsigned long len);
+void set_handler(unsigned long offset, const void *addr, unsigned long len);
extern void set_uncached_handler(unsigned long offset, void *addr, unsigned long len);
typedef void (*vi_handler_t)(void);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 95ba4271af6a..01aa8d6da4b9 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -369,6 +369,9 @@ asmlinkage void start_secondary(void)
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
+ set_cpu_sibling_map(cpu);
+ set_cpu_core_map(cpu);
+
cpumask_set_cpu(cpu, &cpu_coherent_mask);
notify_cpu_starting(cpu);
@@ -380,9 +383,6 @@ asmlinkage void start_secondary(void)
/* The CPU is running and counters synchronised, now mark it online */
set_cpu_online(cpu, true);
- set_cpu_sibling_map(cpu);
- set_cpu_core_map(cpu);
-
calculate_cpu_foreign_map();
/*
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 5f717473d08e..278e81c9e614 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2019,19 +2019,19 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
* If no shadow set is selected then use the default handler
* that does normal register saving and standard interrupt exit
*/
- extern char except_vec_vi, except_vec_vi_lui;
- extern char except_vec_vi_ori, except_vec_vi_end;
- extern char rollback_except_vec_vi;
- char *vec_start = using_rollback_handler() ?
- &rollback_except_vec_vi : &except_vec_vi;
+ extern const u8 except_vec_vi[], except_vec_vi_lui[];
+ extern const u8 except_vec_vi_ori[], except_vec_vi_end[];
+ extern const u8 rollback_except_vec_vi[];
+ const u8 *vec_start = using_rollback_handler() ?
+ rollback_except_vec_vi : except_vec_vi;
#if defined(CONFIG_CPU_MICROMIPS) || defined(CONFIG_CPU_BIG_ENDIAN)
- const int lui_offset = &except_vec_vi_lui - vec_start + 2;
- const int ori_offset = &except_vec_vi_ori - vec_start + 2;
+ const int lui_offset = except_vec_vi_lui - vec_start + 2;
+ const int ori_offset = except_vec_vi_ori - vec_start + 2;
#else
- const int lui_offset = &except_vec_vi_lui - vec_start;
- const int ori_offset = &except_vec_vi_ori - vec_start;
+ const int lui_offset = except_vec_vi_lui - vec_start;
+ const int ori_offset = except_vec_vi_ori - vec_start;
#endif
- const int handler_len = &except_vec_vi_end - vec_start;
+ const int handler_len = except_vec_vi_end - vec_start;
if (handler_len > VECTORSPACING) {
/*
@@ -2251,7 +2251,7 @@ void per_cpu_trap_init(bool is_boot_cpu)
}
/* Install CPU exception handler */
-void set_handler(unsigned long offset, void *addr, unsigned long size)
+void set_handler(unsigned long offset, const void *addr, unsigned long size)
{
#ifdef CONFIG_CPU_MICROMIPS
memcpy((void *)(ebase + offset), ((unsigned char *)addr - 1), size);
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 0966adccf520..ed921f7b4364 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -313,11 +313,9 @@ static int __init plat_setup_devices(void)
static int __init setup_kmac(char *s)
{
printk(KERN_INFO "korina mac = %s\n", s);
- if (!mac_pton(s, korina_dev0_data.mac)) {
+ if (!mac_pton(s, korina_dev0_data.mac))
printk(KERN_ERR "Invalid mac\n");
- return -EINVAL;
- }
- return 0;
+ return 1;
}
__setup("kmac=", setup_kmac);
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 2b65c0177778..957bdeb7a5c7 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -353,7 +353,7 @@ static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
: "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
- return 0;
+ return ret;
}
static int emulate_std(struct pt_regs *regs, int frreg, int flop)
{
@@ -410,7 +410,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
__asm__ __volatile__ (
" mtsp %4, %%sr1\n"
" zdep %2, 29, 2, %%r19\n"
-" dep %%r0, 31, 2, %2\n"
+" dep %%r0, 31, 2, %3\n"
" mtsar %%r19\n"
" zvdepi -2, 32, %%r19\n"
"1: ldw 0(%%sr1,%3),%%r20\n"
@@ -422,7 +422,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
" andcm %%r21, %%r19, %%r21\n"
" or %1, %%r20, %1\n"
" or %2, %%r21, %2\n"
-"3: stw %1,0(%%sr1,%1)\n"
+"3: stw %1,0(%%sr1,%3)\n"
"4: stw %%r1,4(%%sr1,%3)\n"
"5: stw %2,8(%%sr1,%3)\n"
" copy %%r0, %0\n"
@@ -610,7 +610,6 @@ void handle_unaligned(struct pt_regs *regs)
ret = ERR_NOTHANDLED; /* "undefined", but lets kill them. */
break;
}
-#ifdef CONFIG_PA20
switch (regs->iir & OPCODE2_MASK)
{
case OPCODE_FLDD_L:
@@ -621,22 +620,23 @@ void handle_unaligned(struct pt_regs *regs)
flop=1;
ret = emulate_std(regs, R2(regs->iir),1);
break;
+#ifdef CONFIG_PA20
case OPCODE_LDD_L:
ret = emulate_ldd(regs, R2(regs->iir),0);
break;
case OPCODE_STD_L:
ret = emulate_std(regs, R2(regs->iir),0);
break;
- }
#endif
+ }
switch (regs->iir & OPCODE3_MASK)
{
case OPCODE_FLDW_L:
flop=1;
- ret = emulate_ldw(regs, R2(regs->iir),0);
+ ret = emulate_ldw(regs, R2(regs->iir), 1);
break;
case OPCODE_LDW_M:
- ret = emulate_ldw(regs, R2(regs->iir),1);
+ ret = emulate_ldw(regs, R2(regs->iir), 0);
break;
case OPCODE_FSTW_L:
diff --git a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
index 5fdddbd2a62b..b0a9beab1c26 100644
--- a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
@@ -139,12 +139,12 @@
fman@400000 {
ethernet@e6000 {
phy-handle = <&phy_rgmii_0>;
- phy-connection-type = "rgmii";
+ phy-connection-type = "rgmii-id";
};
ethernet@e8000 {
phy-handle = <&phy_rgmii_1>;
- phy-connection-type = "rgmii";
+ phy-connection-type = "rgmii-id";
};
mdio0: mdio@fc000 {
diff --git a/arch/powerpc/sysdev/fsl_gtm.c b/arch/powerpc/sysdev/fsl_gtm.c
index a6f0b96ce2c9..97dee7c99aa0 100644
--- a/arch/powerpc/sysdev/fsl_gtm.c
+++ b/arch/powerpc/sysdev/fsl_gtm.c
@@ -90,7 +90,7 @@ static LIST_HEAD(gtms);
*/
struct gtm_timer *gtm_get_timer16(void)
{
- struct gtm *gtm = NULL;
+ struct gtm *gtm;
int i;
list_for_each_entry(gtm, >ms, list_node) {
@@ -107,7 +107,7 @@ struct gtm_timer *gtm_get_timer16(void)
spin_unlock_irq(>m->lock);
}
- if (gtm)
+ if (!list_empty(>ms))
return ERR_PTR(-EBUSY);
return ERR_PTR(-ENODEV);
}
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0d643ab6ec0c..4ce58439c044 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -422,10 +422,6 @@ config RETPOLINE
branches. Requires a compiler with -mindirect-branch=thunk-extern
support for full protection. The kernel may run slower.
- Without compiler support, at least indirect branches in assembler
- code are eliminated. Since this includes the syscall entry path,
- it is not entirely pointless.
-
if X86_32
config X86_EXTENDED_PLATFORM
bool "Support for extended (non-PC) x86 platforms"
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 0bc35e3e6c5c..a77737a979c8 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -221,9 +221,7 @@ ifdef CONFIG_RETPOLINE
RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk
RETPOLINE_CFLAGS += $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))
- ifneq ($(RETPOLINE_CFLAGS),)
- KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) -DRETPOLINE
- endif
+ KBUILD_CFLAGS += $(RETPOLINE_CFLAGS)
endif
archscripts: scripts_basic
@@ -239,6 +237,13 @@ archprepare:
ifeq ($(CONFIG_KEXEC_FILE),y)
$(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
endif
+ifdef CONFIG_RETPOLINE
+ifeq ($(RETPOLINE_CFLAGS),)
+ @echo "You are building kernel with non-retpoline compiler." >&2
+ @echo "Please update your compiler." >&2
+ @false
+endif
+endif
###
# Kernel objects
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 1808c57ce161..2539aaddd137 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -410,7 +410,7 @@ static u64 pt_config_filters(struct perf_event *event)
pt->filters.filter[range].msr_b = filter->msr_b;
}
- rtit_ctl |= filter->config << pt_address_ranges[range].reg_off;
+ rtit_ctl |= (u64)filter->config << pt_address_ranges[range].reg_off;
}
return rtit_ctl;
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 8ceb7a8a249c..5b197248d546 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -195,7 +195,7 @@
#define X86_FEATURE_FENCE_SWAPGS_USER ( 7*32+10) /* "" LFENCE in user entry SWAPGS path */
#define X86_FEATURE_FENCE_SWAPGS_KERNEL ( 7*32+11) /* "" LFENCE in kernel entry SWAPGS path */
#define X86_FEATURE_RETPOLINE ( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
-#define X86_FEATURE_RETPOLINE_AMD ( 7*32+13) /* "" AMD Retpoline mitigation for Spectre variant 2 */
+#define X86_FEATURE_RETPOLINE_LFENCE ( 7*32+13) /* "" Use LFENCE for Spectre variant 2 */
#define X86_FEATURE_MSR_SPEC_CTRL ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
#define X86_FEATURE_SSBD ( 7*32+17) /* Speculative Store Bypass Disable */
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 204a5ce65afd..19829b00e4fe 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -119,7 +119,7 @@
ANNOTATE_NOSPEC_ALTERNATIVE
ALTERNATIVE_2 __stringify(ANNOTATE_RETPOLINE_SAFE; jmp *\reg), \
__stringify(RETPOLINE_JMP \reg), X86_FEATURE_RETPOLINE, \
- __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; jmp *\reg), X86_FEATURE_RETPOLINE_AMD
+ __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; jmp *\reg), X86_FEATURE_RETPOLINE_LFENCE
#else
jmp *\reg
#endif
@@ -130,7 +130,7 @@
ANNOTATE_NOSPEC_ALTERNATIVE
ALTERNATIVE_2 __stringify(ANNOTATE_RETPOLINE_SAFE; call *\reg), \
__stringify(RETPOLINE_CALL \reg), X86_FEATURE_RETPOLINE,\
- __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; call *\reg), X86_FEATURE_RETPOLINE_AMD
+ __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; call *\reg), X86_FEATURE_RETPOLINE_LFENCE
#else
call *\reg
#endif
@@ -164,29 +164,35 @@
_ASM_PTR " 999b\n\t" \
".popsection\n\t"
-#if defined(CONFIG_X86_64) && defined(RETPOLINE)
+#ifdef CONFIG_RETPOLINE
+#ifdef CONFIG_X86_64
/*
- * Since the inline asm uses the %V modifier which is only in newer GCC,
- * the 64-bit one is dependent on RETPOLINE not CONFIG_RETPOLINE.
+ * Inline asm uses the %V modifier which is only in newer GCC
+ * which is ensured when CONFIG_RETPOLINE is defined.
*/
# define CALL_NOSPEC \
ANNOTATE_NOSPEC_ALTERNATIVE \
- ALTERNATIVE( \
+ ALTERNATIVE_2( \
ANNOTATE_RETPOLINE_SAFE \
"call *%[thunk_target]\n", \
"call __x86_indirect_thunk_%V[thunk_target]\n", \
- X86_FEATURE_RETPOLINE)
+ X86_FEATURE_RETPOLINE, \
+ "lfence;\n" \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[thunk_target]\n", \
+ X86_FEATURE_RETPOLINE_LFENCE)
# define THUNK_TARGET(addr) [thunk_target] "r" (addr)
-#elif defined(CONFIG_X86_32) && defined(CONFIG_RETPOLINE)
+#else /* CONFIG_X86_32 */
/*
* For i386 we use the original ret-equivalent retpoline, because
* otherwise we'll run out of registers. We don't care about CET
* here, anyway.
*/
# define CALL_NOSPEC \
- ALTERNATIVE( \
+ ANNOTATE_NOSPEC_ALTERNATIVE \
+ ALTERNATIVE_2( \
ANNOTATE_RETPOLINE_SAFE \
"call *%[thunk_target]\n", \
" jmp 904f;\n" \
@@ -201,9 +207,14 @@
" ret;\n" \
" .align 16\n" \
"904: call 901b;\n", \
- X86_FEATURE_RETPOLINE)
+ X86_FEATURE_RETPOLINE, \
+ "lfence;\n" \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[thunk_target]\n", \
+ X86_FEATURE_RETPOLINE_LFENCE)
# define THUNK_TARGET(addr) [thunk_target] "rm" (addr)
+#endif
#else /* No retpoline for C / inline asm */
# define CALL_NOSPEC "call *%[thunk_target]\n"
# define THUNK_TARGET(addr) [thunk_target] "rm" (addr)
@@ -212,11 +223,11 @@
/* The Spectre V2 mitigation variants */
enum spectre_v2_mitigation {
SPECTRE_V2_NONE,
- SPECTRE_V2_RETPOLINE_MINIMAL,
- SPECTRE_V2_RETPOLINE_MINIMAL_AMD,
- SPECTRE_V2_RETPOLINE_GENERIC,
- SPECTRE_V2_RETPOLINE_AMD,
- SPECTRE_V2_IBRS_ENHANCED,
+ SPECTRE_V2_RETPOLINE,
+ SPECTRE_V2_LFENCE,
+ SPECTRE_V2_EIBRS,
+ SPECTRE_V2_EIBRS_RETPOLINE,
+ SPECTRE_V2_EIBRS_LFENCE,
};
/* The indirect branch speculation control variants */
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index eb34bf9ef987..e4ca2dd2be76 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1326,6 +1326,17 @@ static int __init disable_acpi_pci(const struct dmi_system_id *d)
return 0;
}
+static int __init disable_acpi_xsdt(const struct dmi_system_id *d)
+{
+ if (!acpi_force) {
+ pr_notice("%s detected: force use of acpi=rsdt\n", d->ident);
+ acpi_gbl_do_not_use_xsdt = TRUE;
+ } else {
+ pr_notice("Warning: DMI blacklist says broken, but acpi XSDT forced\n");
+ }
+ return 0;
+}
+
static int __init dmi_disable_acpi(const struct dmi_system_id *d)
{
if (!acpi_force) {
@@ -1446,6 +1457,19 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
},
},
+ /*
+ * Boxes that need ACPI XSDT use disabled due to corrupted tables
+ */
+ {
+ .callback = disable_acpi_xsdt,
+ .ident = "Advantech DAC-BJ01",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "NEC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Bearlake CRB Board"),
+ DMI_MATCH(DMI_BIOS_VERSION, "V1.12"),
+ DMI_MATCH(DMI_BIOS_DATE, "02/01/2011"),
+ },
+ },
{}
};
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index a884bb7e7b01..94aa0206b1f9 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -30,6 +30,7 @@
#include <asm/cacheflush.h>
#include <asm/intel-family.h>
#include <asm/e820.h>
+#include <linux/bpf.h>
#include "cpu.h"
@@ -585,7 +586,7 @@ static enum spectre_v2_user_mitigation spectre_v2_user_stibp __ro_after_init =
static enum spectre_v2_user_mitigation spectre_v2_user_ibpb __ro_after_init =
SPECTRE_V2_USER_NONE;
-#ifdef RETPOLINE
+#ifdef CONFIG_RETPOLINE
static bool spectre_v2_bad_module;
bool retpoline_module_ok(bool has_retpoline)
@@ -606,6 +607,32 @@ static inline const char *spectre_v2_module_string(void)
static inline const char *spectre_v2_module_string(void) { return ""; }
#endif
+#define SPECTRE_V2_LFENCE_MSG "WARNING: LFENCE mitigation is not recommended for this CPU, data leaks possible!\n"
+#define SPECTRE_V2_EIBRS_EBPF_MSG "WARNING: Unprivileged eBPF is enabled with eIBRS on, data leaks possible via Spectre v2 BHB attacks!\n"
+#define SPECTRE_V2_EIBRS_LFENCE_EBPF_SMT_MSG "WARNING: Unprivileged eBPF is enabled with eIBRS+LFENCE mitigation and SMT, data leaks possible via Spectre v2 BHB attacks!\n"
+
+#ifdef CONFIG_BPF_SYSCALL
+void unpriv_ebpf_notify(int new_state)
+{
+ if (new_state)
+ return;
+
+ /* Unprivileged eBPF is enabled */
+
+ switch (spectre_v2_enabled) {
+ case SPECTRE_V2_EIBRS:
+ pr_err(SPECTRE_V2_EIBRS_EBPF_MSG);
+ break;
+ case SPECTRE_V2_EIBRS_LFENCE:
+ if (sched_smt_active())
+ pr_err(SPECTRE_V2_EIBRS_LFENCE_EBPF_SMT_MSG);
+ break;
+ default:
+ break;
+ }
+}
+#endif
+
static inline bool match_option(const char *arg, int arglen, const char *opt)
{
int len = strlen(opt);
@@ -620,7 +647,10 @@ enum spectre_v2_mitigation_cmd {
SPECTRE_V2_CMD_FORCE,
SPECTRE_V2_CMD_RETPOLINE,
SPECTRE_V2_CMD_RETPOLINE_GENERIC,
- SPECTRE_V2_CMD_RETPOLINE_AMD,
+ SPECTRE_V2_CMD_RETPOLINE_LFENCE,
+ SPECTRE_V2_CMD_EIBRS,
+ SPECTRE_V2_CMD_EIBRS_RETPOLINE,
+ SPECTRE_V2_CMD_EIBRS_LFENCE,
};
enum spectre_v2_user_cmd {
@@ -693,6 +723,13 @@ spectre_v2_parse_user_cmdline(enum spectre_v2_mitigation_cmd v2_cmd)
return SPECTRE_V2_USER_CMD_AUTO;
}
+static inline bool spectre_v2_in_eibrs_mode(enum spectre_v2_mitigation mode)
+{
+ return (mode == SPECTRE_V2_EIBRS ||
+ mode == SPECTRE_V2_EIBRS_RETPOLINE ||
+ mode == SPECTRE_V2_EIBRS_LFENCE);
+}
+
static void __init
spectre_v2_user_select_mitigation(enum spectre_v2_mitigation_cmd v2_cmd)
{
@@ -755,10 +792,12 @@ spectre_v2_user_select_mitigation(enum spectre_v2_mitigation_cmd v2_cmd)
}
/*
- * If enhanced IBRS is enabled or SMT impossible, STIBP is not
+ * If no STIBP, enhanced IBRS is enabled or SMT impossible, STIBP is not
* required.
*/
- if (!smt_possible || spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
+ if (!boot_cpu_has(X86_FEATURE_STIBP) ||
+ !smt_possible ||
+ spectre_v2_in_eibrs_mode(spectre_v2_enabled))
return;
/*
@@ -770,12 +809,6 @@ spectre_v2_user_select_mitigation(enum spectre_v2_mitigation_cmd v2_cmd)
boot_cpu_has(X86_FEATURE_AMD_STIBP_ALWAYS_ON))
mode = SPECTRE_V2_USER_STRICT_PREFERRED;
- /*
- * If STIBP is not available, clear the STIBP mode.
- */
- if (!boot_cpu_has(X86_FEATURE_STIBP))
- mode = SPECTRE_V2_USER_NONE;
-
spectre_v2_user_stibp = mode;
set_mode:
@@ -784,11 +817,11 @@ spectre_v2_user_select_mitigation(enum spectre_v2_mitigation_cmd v2_cmd)
static const char * const spectre_v2_strings[] = {
[SPECTRE_V2_NONE] = "Vulnerable",
- [SPECTRE_V2_RETPOLINE_MINIMAL] = "Vulnerable: Minimal generic ASM retpoline",
- [SPECTRE_V2_RETPOLINE_MINIMAL_AMD] = "Vulnerable: Minimal AMD ASM retpoline",
- [SPECTRE_V2_RETPOLINE_GENERIC] = "Mitigation: Full generic retpoline",
- [SPECTRE_V2_RETPOLINE_AMD] = "Mitigation: Full AMD retpoline",
- [SPECTRE_V2_IBRS_ENHANCED] = "Mitigation: Enhanced IBRS",
+ [SPECTRE_V2_RETPOLINE] = "Mitigation: Retpolines",
+ [SPECTRE_V2_LFENCE] = "Mitigation: LFENCE",
+ [SPECTRE_V2_EIBRS] = "Mitigation: Enhanced IBRS",
+ [SPECTRE_V2_EIBRS_LFENCE] = "Mitigation: Enhanced IBRS + LFENCE",
+ [SPECTRE_V2_EIBRS_RETPOLINE] = "Mitigation: Enhanced IBRS + Retpolines",
};
static const struct {
@@ -799,8 +832,12 @@ static const struct {
{ "off", SPECTRE_V2_CMD_NONE, false },
{ "on", SPECTRE_V2_CMD_FORCE, true },
{ "retpoline", SPECTRE_V2_CMD_RETPOLINE, false },
- { "retpoline,amd", SPECTRE_V2_CMD_RETPOLINE_AMD, false },
+ { "retpoline,amd", SPECTRE_V2_CMD_RETPOLINE_LFENCE, false },
+ { "retpoline,lfence", SPECTRE_V2_CMD_RETPOLINE_LFENCE, false },
{ "retpoline,generic", SPECTRE_V2_CMD_RETPOLINE_GENERIC, false },
+ { "eibrs", SPECTRE_V2_CMD_EIBRS, false },
+ { "eibrs,lfence", SPECTRE_V2_CMD_EIBRS_LFENCE, false },
+ { "eibrs,retpoline", SPECTRE_V2_CMD_EIBRS_RETPOLINE, false },
{ "auto", SPECTRE_V2_CMD_AUTO, false },
};
@@ -810,11 +847,6 @@ static void __init spec_v2_print_cond(const char *reason, bool secure)
pr_info("%s selected on command line.\n", reason);
}
-static inline bool retp_compiler(void)
-{
- return __is_defined(RETPOLINE);
-}
-
static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
{
enum spectre_v2_mitigation_cmd cmd = SPECTRE_V2_CMD_AUTO;
@@ -842,16 +874,30 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
}
if ((cmd == SPECTRE_V2_CMD_RETPOLINE ||
- cmd == SPECTRE_V2_CMD_RETPOLINE_AMD ||
- cmd == SPECTRE_V2_CMD_RETPOLINE_GENERIC) &&
+ cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE ||
+ cmd == SPECTRE_V2_CMD_RETPOLINE_GENERIC ||
+ cmd == SPECTRE_V2_CMD_EIBRS_LFENCE ||
+ cmd == SPECTRE_V2_CMD_EIBRS_RETPOLINE) &&
!IS_ENABLED(CONFIG_RETPOLINE)) {
- pr_err("%s selected but not compiled in. Switching to AUTO select\n", mitigation_options[i].option);
+ pr_err("%s selected but not compiled in. Switching to AUTO select\n",
+ mitigation_options[i].option);
+ return SPECTRE_V2_CMD_AUTO;
+ }
+
+ if ((cmd == SPECTRE_V2_CMD_EIBRS ||
+ cmd == SPECTRE_V2_CMD_EIBRS_LFENCE ||
+ cmd == SPECTRE_V2_CMD_EIBRS_RETPOLINE) &&
+ !boot_cpu_has(X86_FEATURE_IBRS_ENHANCED)) {
+ pr_err("%s selected but CPU doesn't have eIBRS. Switching to AUTO select\n",
+ mitigation_options[i].option);
return SPECTRE_V2_CMD_AUTO;
}
- if (cmd == SPECTRE_V2_CMD_RETPOLINE_AMD &&
- boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
- pr_err("retpoline,amd selected but CPU is not AMD. Switching to AUTO select\n");
+ if ((cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE ||
+ cmd == SPECTRE_V2_CMD_EIBRS_LFENCE) &&
+ !boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
+ pr_err("%s selected, but CPU doesn't have a serializing LFENCE. Switching to AUTO select\n",
+ mitigation_options[i].option);
return SPECTRE_V2_CMD_AUTO;
}
@@ -860,6 +906,16 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
return cmd;
}
+static enum spectre_v2_mitigation __init spectre_v2_select_retpoline(void)
+{
+ if (!IS_ENABLED(CONFIG_RETPOLINE)) {
+ pr_err("Kernel not compiled with retpoline; no mitigation available!");
+ return SPECTRE_V2_NONE;
+ }
+
+ return SPECTRE_V2_RETPOLINE;
+}
+
static void __init spectre_v2_select_mitigation(void)
{
enum spectre_v2_mitigation_cmd cmd = spectre_v2_parse_cmdline();
@@ -880,50 +936,64 @@ static void __init spectre_v2_select_mitigation(void)
case SPECTRE_V2_CMD_FORCE:
case SPECTRE_V2_CMD_AUTO:
if (boot_cpu_has(X86_FEATURE_IBRS_ENHANCED)) {
- mode = SPECTRE_V2_IBRS_ENHANCED;
- /* Force it so VMEXIT will restore correctly */
- x86_spec_ctrl_base |= SPEC_CTRL_IBRS;
- wrmsrl(MSR_IA32_SPEC_CTRL, x86_spec_ctrl_base);
- goto specv2_set_mode;
+ mode = SPECTRE_V2_EIBRS;
+ break;
}
- if (IS_ENABLED(CONFIG_RETPOLINE))
- goto retpoline_auto;
+
+ mode = spectre_v2_select_retpoline();
break;
- case SPECTRE_V2_CMD_RETPOLINE_AMD:
- if (IS_ENABLED(CONFIG_RETPOLINE))
- goto retpoline_amd;
+
+ case SPECTRE_V2_CMD_RETPOLINE_LFENCE:
+ pr_err(SPECTRE_V2_LFENCE_MSG);
+ mode = SPECTRE_V2_LFENCE;
break;
+
case SPECTRE_V2_CMD_RETPOLINE_GENERIC:
- if (IS_ENABLED(CONFIG_RETPOLINE))
- goto retpoline_generic;
+ mode = SPECTRE_V2_RETPOLINE;
break;
+
case SPECTRE_V2_CMD_RETPOLINE:
- if (IS_ENABLED(CONFIG_RETPOLINE))
- goto retpoline_auto;
+ mode = spectre_v2_select_retpoline();
+ break;
+
+ case SPECTRE_V2_CMD_EIBRS:
+ mode = SPECTRE_V2_EIBRS;
+ break;
+
+ case SPECTRE_V2_CMD_EIBRS_LFENCE:
+ mode = SPECTRE_V2_EIBRS_LFENCE;
+ break;
+
+ case SPECTRE_V2_CMD_EIBRS_RETPOLINE:
+ mode = SPECTRE_V2_EIBRS_RETPOLINE;
break;
}
- pr_err("Spectre mitigation: kernel not compiled with retpoline; no mitigation available!");
- return;
-retpoline_auto:
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) {
- retpoline_amd:
- if (!boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
- pr_err("Spectre mitigation: LFENCE not serializing, switching to generic retpoline\n");
- goto retpoline_generic;
- }
- mode = retp_compiler() ? SPECTRE_V2_RETPOLINE_AMD :
- SPECTRE_V2_RETPOLINE_MINIMAL_AMD;
- setup_force_cpu_cap(X86_FEATURE_RETPOLINE_AMD);
- setup_force_cpu_cap(X86_FEATURE_RETPOLINE);
- } else {
- retpoline_generic:
- mode = retp_compiler() ? SPECTRE_V2_RETPOLINE_GENERIC :
- SPECTRE_V2_RETPOLINE_MINIMAL;
+ if (mode == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
+ pr_err(SPECTRE_V2_EIBRS_EBPF_MSG);
+
+ if (spectre_v2_in_eibrs_mode(mode)) {
+ /* Force it so VMEXIT will restore correctly */
+ x86_spec_ctrl_base |= SPEC_CTRL_IBRS;
+ wrmsrl(MSR_IA32_SPEC_CTRL, x86_spec_ctrl_base);
+ }
+
+ switch (mode) {
+ case SPECTRE_V2_NONE:
+ case SPECTRE_V2_EIBRS:
+ break;
+
+ case SPECTRE_V2_LFENCE:
+ case SPECTRE_V2_EIBRS_LFENCE:
+ setup_force_cpu_cap(X86_FEATURE_RETPOLINE_LFENCE);
+ /* fallthrough */
+
+ case SPECTRE_V2_RETPOLINE:
+ case SPECTRE_V2_EIBRS_RETPOLINE:
setup_force_cpu_cap(X86_FEATURE_RETPOLINE);
+ break;
}
-specv2_set_mode:
spectre_v2_enabled = mode;
pr_info("%s\n", spectre_v2_strings[mode]);
@@ -949,7 +1019,7 @@ static void __init spectre_v2_select_mitigation(void)
* the CPU supports Enhanced IBRS, kernel might un-intentionally not
* enable IBRS around firmware calls.
*/
- if (boot_cpu_has(X86_FEATURE_IBRS) && mode != SPECTRE_V2_IBRS_ENHANCED) {
+ if (boot_cpu_has(X86_FEATURE_IBRS) && !spectre_v2_in_eibrs_mode(mode)) {
setup_force_cpu_cap(X86_FEATURE_USE_IBRS_FW);
pr_info("Enabling Restricted Speculation for firmware calls\n");
}
@@ -1019,6 +1089,10 @@ void arch_smt_update(void)
{
mutex_lock(&spec_ctrl_mutex);
+ if (sched_smt_active() && unprivileged_ebpf_enabled() &&
+ spectre_v2_enabled == SPECTRE_V2_EIBRS_LFENCE)
+ pr_warn_once(SPECTRE_V2_EIBRS_LFENCE_EBPF_SMT_MSG);
+
switch (spectre_v2_user_stibp) {
case SPECTRE_V2_USER_NONE:
break;
@@ -1263,7 +1337,6 @@ static int ib_prctl_set(struct task_struct *task, unsigned long ctrl)
if (spectre_v2_user_ibpb == SPECTRE_V2_USER_NONE &&
spectre_v2_user_stibp == SPECTRE_V2_USER_NONE)
return 0;
-
/*
* With strict mode for both IBPB and STIBP, the instruction
* code paths avoid checking this task flag and instead,
@@ -1610,7 +1683,7 @@ static ssize_t tsx_async_abort_show_state(char *buf)
static char *stibp_state(void)
{
- if (spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
+ if (spectre_v2_in_eibrs_mode(spectre_v2_enabled))
return "";
switch (spectre_v2_user_stibp) {
@@ -1640,6 +1713,27 @@ static char *ibpb_state(void)
return "";
}
+static ssize_t spectre_v2_show_state(char *buf)
+{
+ if (spectre_v2_enabled == SPECTRE_V2_LFENCE)
+ return sprintf(buf, "Vulnerable: LFENCE\n");
+
+ if (spectre_v2_enabled == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
+ return sprintf(buf, "Vulnerable: eIBRS with unprivileged eBPF\n");
+
+ if (sched_smt_active() && unprivileged_ebpf_enabled() &&
+ spectre_v2_enabled == SPECTRE_V2_EIBRS_LFENCE)
+ return sprintf(buf, "Vulnerable: eIBRS+LFENCE with unprivileged eBPF and SMT\n");
+
+ return sprintf(buf, "%s%s%s%s%s%s\n",
+ spectre_v2_strings[spectre_v2_enabled],
+ ibpb_state(),
+ boot_cpu_has(X86_FEATURE_USE_IBRS_FW) ? ", IBRS_FW" : "",
+ stibp_state(),
+ boot_cpu_has(X86_FEATURE_RSB_CTXSW) ? ", RSB filling" : "",
+ spectre_v2_module_string());
+}
+
static ssize_t srbds_show_state(char *buf)
{
return sprintf(buf, "%s\n", srbds_strings[srbds_mitigation]);
@@ -1662,12 +1756,7 @@ static ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr
return sprintf(buf, "%s\n", spectre_v1_strings[spectre_v1_mitigation]);
case X86_BUG_SPECTRE_V2:
- return sprintf(buf, "%s%s%s%s%s%s\n", spectre_v2_strings[spectre_v2_enabled],
- ibpb_state(),
- boot_cpu_has(X86_FEATURE_USE_IBRS_FW) ? ", IBRS_FW" : "",
- stibp_state(),
- boot_cpu_has(X86_FEATURE_RSB_CTXSW) ? ", RSB filling" : "",
- spectre_v2_module_string());
+ return spectre_v2_show_state(buf);
case X86_BUG_SPEC_STORE_BYPASS:
return sprintf(buf, "%s\n", ssb_strings[ssb_mode]);
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 2e5553091f90..3edafdffa687 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1674,11 +1674,6 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
goto exception;
}
- if (!seg_desc.p) {
- err_vec = (seg == VCPU_SREG_SS) ? SS_VECTOR : NP_VECTOR;
- goto exception;
- }
-
dpl = seg_desc.dpl;
switch (seg) {
@@ -1718,6 +1713,10 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
case VCPU_SREG_TR:
if (seg_desc.s || (seg_desc.type != 1 && seg_desc.type != 9))
goto exception;
+ if (!seg_desc.p) {
+ err_vec = NP_VECTOR;
+ goto exception;
+ }
old_desc = seg_desc;
seg_desc.type |= 2; /* busy */
ret = ctxt->ops->cmpxchg_emulated(ctxt, desc_addr, &old_desc, &seg_desc,
@@ -1742,6 +1741,11 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
break;
}
+ if (!seg_desc.p) {
+ err_vec = (seg == VCPU_SREG_SS) ? SS_VECTOR : NP_VECTOR;
+ goto exception;
+ }
+
if (seg_desc.s) {
/* mark segment as accessed */
if (!(seg_desc.type & 1)) {
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 5e837c96e93f..56feb7d8f96d 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -244,6 +244,9 @@ static int synic_set_msr(struct kvm_vcpu_hv_synic *synic,
case HV_X64_MSR_EOM: {
int i;
+ if (!synic->active)
+ break;
+
for (i = 0; i < ARRAY_SIZE(synic->sint); i++)
kvm_hv_notify_acked_sint(vcpu, i);
break;
@@ -504,6 +507,12 @@ static int stimer_start(struct kvm_vcpu_hv_stimer *stimer)
static int stimer_set_config(struct kvm_vcpu_hv_stimer *stimer, u64 config,
bool host)
{
+ struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer);
+ struct kvm_vcpu_hv_synic *synic = vcpu_to_synic(vcpu);
+
+ if (!synic->active && (!host || config))
+ return 1;
+
trace_kvm_hv_stimer_set_config(stimer_to_vcpu(stimer)->vcpu_id,
stimer->index, config, host);
@@ -518,6 +527,12 @@ static int stimer_set_config(struct kvm_vcpu_hv_stimer *stimer, u64 config,
static int stimer_set_count(struct kvm_vcpu_hv_stimer *stimer, u64 count,
bool host)
{
+ struct kvm_vcpu *vcpu = stimer_to_vcpu(stimer);
+ struct kvm_vcpu_hv_synic *synic = vcpu_to_synic(vcpu);
+
+ if (!synic->active && (!host || count))
+ return 1;
+
trace_kvm_hv_stimer_set_count(stimer_to_vcpu(stimer)->vcpu_id,
stimer->index, count, host);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 2739b2c8db0e..4f1a56135a53 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1767,10 +1767,7 @@ void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data)
void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8)
{
- struct kvm_lapic *apic = vcpu->arch.apic;
-
- apic_set_tpr(apic, ((cr8 & 0x0f) << 4)
- | (kvm_lapic_get_reg(apic, APIC_TASKPRI) & 4));
+ apic_set_tpr(vcpu->arch.apic, (cr8 & 0x0f) << 4);
}
u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/pmu_amd.c b/arch/x86/kvm/pmu_amd.c
index cd944435dfbd..e0473c72062e 100644
--- a/arch/x86/kvm/pmu_amd.c
+++ b/arch/x86/kvm/pmu_amd.c
@@ -139,12 +139,10 @@ static int amd_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
/* MSR_K7_EVNTSELn */
pmc = get_gp_pmc(pmu, msr, MSR_K7_EVNTSEL0);
if (pmc) {
- if (data == pmc->eventsel)
- return 0;
- if (!(data & pmu->reserved_bits)) {
+ data &= ~pmu->reserved_bits;
+ if (data != pmc->eventsel)
reprogram_gp_counter(pmc, data);
- return 0;
- }
+ return 0;
}
return 1;
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index c8f947a4aaf2..357b3e6a2f7b 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -41,7 +41,8 @@ static void msr_save_context(struct saved_context *ctxt)
struct saved_msr *end = msr + ctxt->saved_msrs.num;
while (msr < end) {
- msr->valid = !rdmsrl_safe(msr->info.msr_no, &msr->info.reg.q);
+ if (msr->valid)
+ rdmsrl(msr->info.msr_no, msr->info.reg.q);
msr++;
}
}
@@ -419,8 +420,10 @@ static int msr_build_context(const u32 *msr_id, const int num)
}
for (i = saved_msrs->num, j = 0; i < total_num; i++, j++) {
+ u64 dummy;
+
msr_array[i].info.msr_no = msr_id[j];
- msr_array[i].valid = false;
+ msr_array[i].valid = !rdmsrl_safe(msr_id[j], &dummy);
msr_array[i].info.reg.q = 0;
}
saved_msrs->num = total_num;
@@ -507,10 +510,24 @@ static int pm_cpu_check(const struct x86_cpu_id *c)
return ret;
}
+static void pm_save_spec_msr(void)
+{
+ u32 spec_msr_id[] = {
+ MSR_IA32_SPEC_CTRL,
+ MSR_IA32_TSX_CTRL,
+ MSR_TSX_FORCE_ABORT,
+ MSR_IA32_MCU_OPT_CTRL,
+ MSR_AMD64_LS_CFG,
+ };
+
+ msr_build_context(spec_msr_id, ARRAY_SIZE(spec_msr_id));
+}
+
static int pm_check_save_msr(void)
{
dmi_check_system(msr_save_dmi_table);
pm_cpu_check(msr_save_cpu_table);
+ pm_save_spec_msr();
return 0;
}
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
index d3a88e029873..d9b399b57bcd 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
@@ -7,19 +7,19 @@
reg = <0x00000000 0x08000000>;
bank-width = <2>;
device-width = <2>;
- partition@0x0 {
+ partition@0 {
label = "data";
reg = <0x00000000 0x06000000>;
};
- partition@0x6000000 {
+ partition@6000000 {
label = "boot loader area";
reg = <0x06000000 0x00800000>;
};
- partition@0x6800000 {
+ partition@6800000 {
label = "kernel image";
reg = <0x06800000 0x017e0000>;
};
- partition@0x7fe0000 {
+ partition@7fe0000 {
label = "boot environment";
reg = <0x07fe0000 0x00020000>;
};
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
index 1d97203c18e7..c9d0fc0b6265 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
@@ -7,19 +7,19 @@
reg = <0x08000000 0x01000000>;
bank-width = <2>;
device-width = <2>;
- partition@0x0 {
+ partition@0 {
label = "boot loader area";
reg = <0x00000000 0x00400000>;
};
- partition@0x400000 {
+ partition@400000 {
label = "kernel image";
reg = <0x00400000 0x00600000>;
};
- partition@0xa00000 {
+ partition@a00000 {
label = "data";
reg = <0x00a00000 0x005e0000>;
};
- partition@0xfe0000 {
+ partition@fe0000 {
label = "boot environment";
reg = <0x00fe0000 0x00020000>;
};
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
index d1c621ca8be1..332892315f92 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
@@ -7,11 +7,11 @@
reg = <0x08000000 0x00400000>;
bank-width = <2>;
device-width = <2>;
- partition@0x0 {
+ partition@0 {
label = "boot loader area";
reg = <0x00000000 0x003f0000>;
};
- partition@0x3f0000 {
+ partition@3f0000 {
label = "boot environment";
reg = <0x003f0000 0x00010000>;
};
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index b6e5447d563e..f538bac4ac66 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -394,7 +394,7 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
return 0;
case BLKGETSIZE:
size = i_size_read(bdev->bd_inode);
- if ((size >> 9) > ~0UL)
+ if ((size >> 9) > ~(compat_ulong_t)0)
return -EFBIG;
return compat_put_ulong(arg, size >> 9);
diff --git a/crypto/authenc.c b/crypto/authenc.c
index 6bfec690ca5b..f9ab04aa6dd5 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -268,7 +268,7 @@ static int crypto_authenc_decrypt_tail(struct aead_request *req,
dst = scatterwalk_ffwd(areq_ctx->dst, req->dst, req->assoclen);
skcipher_request_set_tfm(skreq, ctx->enc);
- skcipher_request_set_callback(skreq, aead_request_flags(req),
+ skcipher_request_set_callback(skreq, flags,
req->base.complete, req->base.data);
skcipher_request_set_crypt(skreq, src, dst,
req->cryptlen - authsize, req->iv);
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index ebd731fe8e45..6902c2a01f6f 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -203,6 +203,9 @@ acpi_ns_walk_namespace(acpi_object_type type,
if (start_node == ACPI_ROOT_OBJECT) {
start_node = acpi_gbl_root_node;
+ if (!start_node) {
+ return_ACPI_STATUS(AE_NO_NAMESPACE);
+ }
}
/* Null child means "get first node" */
diff --git a/drivers/acpi/apei/bert.c b/drivers/acpi/apei/bert.c
index a05b5c0cf181..e22f3d89b84b 100644
--- a/drivers/acpi/apei/bert.c
+++ b/drivers/acpi/apei/bert.c
@@ -31,6 +31,7 @@
#undef pr_fmt
#define pr_fmt(fmt) "BERT: " fmt
+#define ACPI_BERT_PRINT_MAX_LEN 1024
static int bert_disable;
@@ -59,8 +60,11 @@ static void __init bert_print_all(struct acpi_bert_region *region,
}
pr_info_once("Error records from previous boot:\n");
-
- cper_estatus_print(KERN_INFO HW_ERR, estatus);
+ if (region_len < ACPI_BERT_PRINT_MAX_LEN)
+ cper_estatus_print(KERN_INFO HW_ERR, estatus);
+ else
+ pr_info_once("Max print length exceeded, table data is available at:\n"
+ "/sys/firmware/acpi/tables/data/BERT");
/*
* Because the boot error source is "one-time polled" type,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 69c6f02f16b5..ee300bbe8831 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -88,6 +88,10 @@ enum acpi_battery_files {
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
+
+ /* Microsoft Surface Go 3 */
+ {"MSHW0146", 0},
+
{"", 0},
};
@@ -1153,6 +1157,14 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"),
},
},
+ {
+ /* Microsoft Surface Go 3 */
+ .callback = battery_notification_delay_quirk,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Surface Go 3"),
+ },
+ },
{},
};
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 318bdfb8703c..b27a405a0f87 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -681,6 +681,11 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
cpc_obj = &out_obj->package.elements[0];
if (cpc_obj->type == ACPI_TYPE_INTEGER) {
num_ent = cpc_obj->integer.value;
+ if (num_ent <= 1) {
+ pr_debug("Unexpected _CPC NumEntries value (%d) for CPU:%d\n",
+ num_ent, pr->id);
+ goto out_free;
+ }
} else {
pr_debug("Unexpected entry type(%d) for NumEntries\n",
cpc_obj->type);
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index ec2f77a47150..2837b2f98213 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -135,6 +135,81 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
},
},
+ /*
+ * Clevo NL5xRU and NL5xNU/TUXEDO Aura 15 Gen1 and Gen2 have both a
+ * working native and video interface. However the default detection
+ * mechanism first registers the video interface before unregistering
+ * it again and switching to the native interface during boot. This
+ * results in a dangling SBIOS request for backlight change for some
+ * reason, causing the backlight to switch to ~2% once per boot on the
+ * first power cord connect or disconnect event. Setting the native
+ * interface explicitly circumvents this buggy behaviour, by avoiding
+ * the unregistering process.
+ */
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "AURA1501"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xRU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "EDUBOOK1502"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xNU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xNU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Clevo NL5xNU",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_BOARD_NAME, "NL5xNU"),
+ },
+ },
/*
* These models have a working acpi_video backlight control, and using
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 3ba843f5cdc0..44cc02afaa8b 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -919,6 +919,20 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
irqmask &= ~0x10;
pci_write_config_byte(dev, 0x5a, irqmask);
+ /*
+ * HPT371 chips physically have only one channel, the secondary one,
+ * but the primary channel registers do exist! Go figure...
+ * So, we manually disable the non-existing channel here
+ * (if the BIOS hasn't done this already).
+ */
+ if (dev->device == PCI_DEVICE_ID_TTI_HPT371) {
+ u8 mcr1;
+
+ pci_read_config_byte(dev, 0x50, &mcr1);
+ mcr1 &= ~0x04;
+ pci_write_config_byte(dev, 0x50, mcr1);
+ }
+
/*
* default to pci clock. make sure MA15/16 are set to output
* to prevent drives having problems with 40-pin cables. Needed
@@ -950,14 +964,14 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
if ((freq >> 12) != 0xABCDE) {
int i;
- u8 sr;
+ u16 sr;
u32 total = 0;
pr_warn("BIOS has not set timing clocks\n");
/* This is the process the HPT371 BIOS is reported to use */
for (i = 0; i < 128; i++) {
- pci_read_config_byte(dev, 0x78, &sr);
+ pci_read_config_word(dev, 0x78, &sr);
total += sr & 0x1FF;
udelay(15);
}
diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
index ff468a6fd8dd..677f582cf3d6 100644
--- a/drivers/ata/pata_marvell.c
+++ b/drivers/ata/pata_marvell.c
@@ -82,6 +82,8 @@ static int marvell_cable_detect(struct ata_port *ap)
switch(ap->port_no)
{
case 0:
+ if (!ap->ioaddr.bmdma_addr)
+ return ATA_CBL_PATA_UNK;
if (ioread8(ap->ioaddr.bmdma_addr + 1) & 1)
return ATA_CBL_PATA40;
return ATA_CBL_PATA80;
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 2b7786cd548f..0ec52fb2b7fc 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1114,6 +1114,8 @@ DPRINTK("iovcnt = %d\n",skb_shinfo(skb)->nr_frags);
}
paddr = dma_map_single(&eni_dev->pci_dev->dev,skb->data,skb->len,
DMA_TO_DEVICE);
+ if (dma_mapping_error(&eni_dev->pci_dev->dev, paddr))
+ return enq_next;
ENI_PRV_PADDR(skb) = paddr;
/* prepare DMA queue entries */
j = 0;
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 7cb2b863e653..7d74b7e1a837 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1692,6 +1692,8 @@ static int fs_init(struct fs_dev *dev)
dev->hw_base = pci_resource_start(pci_dev, 0);
dev->base = ioremap(dev->hw_base, 0x1000);
+ if (!dev->base)
+ return 1;
reset_chip (dev);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index d707cd16ed01..b4d50c5dcbf8 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1766,7 +1766,9 @@ static bool pm_ops_is_empty(const struct dev_pm_ops *ops)
void device_pm_check_callbacks(struct device *dev)
{
- spin_lock_irq(&dev->power.lock);
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->power.lock, flags);
dev->power.no_pm_callbacks =
(!dev->bus || (pm_ops_is_empty(dev->bus->pm) &&
!dev->bus->suspend && !dev->bus->resume)) &&
@@ -1776,5 +1778,5 @@ void device_pm_check_callbacks(struct device *dev)
(!dev->pm_domain || pm_ops_is_empty(&dev->pm_domain->ops)) &&
(!dev->driver || (pm_ops_is_empty(dev->driver->pm) &&
!dev->driver->suspend && !dev->driver->resume));
- spin_unlock_irq(&dev->power.lock);
+ spin_unlock_irqrestore(&dev->power.lock, flags);
}
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 4cb8f21ff4ef..4a7be81e7de9 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1696,22 +1696,22 @@ struct sib_info {
};
void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib);
-extern void notify_resource_state(struct sk_buff *,
+extern int notify_resource_state(struct sk_buff *,
unsigned int,
struct drbd_resource *,
struct resource_info *,
enum drbd_notification_type);
-extern void notify_device_state(struct sk_buff *,
+extern int notify_device_state(struct sk_buff *,
unsigned int,
struct drbd_device *,
struct device_info *,
enum drbd_notification_type);
-extern void notify_connection_state(struct sk_buff *,
+extern int notify_connection_state(struct sk_buff *,
unsigned int,
struct drbd_connection *,
struct connection_info *,
enum drbd_notification_type);
-extern void notify_peer_device_state(struct sk_buff *,
+extern int notify_peer_device_state(struct sk_buff *,
unsigned int,
struct drbd_peer_device *,
struct peer_device_info *,
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index b809f325c2be..3c9cee9520ed 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -4611,7 +4611,7 @@ static int nla_put_notification_header(struct sk_buff *msg,
return drbd_notification_header_to_skb(msg, &nh, true);
}
-void notify_resource_state(struct sk_buff *skb,
+int notify_resource_state(struct sk_buff *skb,
unsigned int seq,
struct drbd_resource *resource,
struct resource_info *resource_info,
@@ -4653,16 +4653,17 @@ void notify_resource_state(struct sk_buff *skb,
if (err && err != -ESRCH)
goto failed;
}
- return;
+ return 0;
nla_put_failure:
nlmsg_free(skb);
failed:
drbd_err(resource, "Error %d while broadcasting event. Event seq:%u\n",
err, seq);
+ return err;
}
-void notify_device_state(struct sk_buff *skb,
+int notify_device_state(struct sk_buff *skb,
unsigned int seq,
struct drbd_device *device,
struct device_info *device_info,
@@ -4702,16 +4703,17 @@ void notify_device_state(struct sk_buff *skb,
if (err && err != -ESRCH)
goto failed;
}
- return;
+ return 0;
nla_put_failure:
nlmsg_free(skb);
failed:
drbd_err(device, "Error %d while broadcasting event. Event seq:%u\n",
err, seq);
+ return err;
}
-void notify_connection_state(struct sk_buff *skb,
+int notify_connection_state(struct sk_buff *skb,
unsigned int seq,
struct drbd_connection *connection,
struct connection_info *connection_info,
@@ -4751,16 +4753,17 @@ void notify_connection_state(struct sk_buff *skb,
if (err && err != -ESRCH)
goto failed;
}
- return;
+ return 0;
nla_put_failure:
nlmsg_free(skb);
failed:
drbd_err(connection, "Error %d while broadcasting event. Event seq:%u\n",
err, seq);
+ return err;
}
-void notify_peer_device_state(struct sk_buff *skb,
+int notify_peer_device_state(struct sk_buff *skb,
unsigned int seq,
struct drbd_peer_device *peer_device,
struct peer_device_info *peer_device_info,
@@ -4801,13 +4804,14 @@ void notify_peer_device_state(struct sk_buff *skb,
if (err && err != -ESRCH)
goto failed;
}
- return;
+ return 0;
nla_put_failure:
nlmsg_free(skb);
failed:
drbd_err(peer_device, "Error %d while broadcasting event. Event seq:%u\n",
err, seq);
+ return err;
}
void notify_helper(enum drbd_notification_type type,
@@ -4858,7 +4862,7 @@ void notify_helper(enum drbd_notification_type type,
err, seq);
}
-static void notify_initial_state_done(struct sk_buff *skb, unsigned int seq)
+static int notify_initial_state_done(struct sk_buff *skb, unsigned int seq)
{
struct drbd_genlmsghdr *dh;
int err;
@@ -4872,11 +4876,12 @@ static void notify_initial_state_done(struct sk_buff *skb, unsigned int seq)
if (nla_put_notification_header(skb, NOTIFY_EXISTS))
goto nla_put_failure;
genlmsg_end(skb, dh);
- return;
+ return 0;
nla_put_failure:
nlmsg_free(skb);
pr_err("Error %d sending event. Event seq:%u\n", err, seq);
+ return err;
}
static void free_state_changes(struct list_head *list)
@@ -4903,6 +4908,7 @@ static int get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
unsigned int seq = cb->args[2];
unsigned int n;
enum drbd_notification_type flags = 0;
+ int err = 0;
/* There is no need for taking notification_mutex here: it doesn't
matter if the initial state events mix with later state chage
@@ -4911,32 +4917,32 @@ static int get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
cb->args[5]--;
if (cb->args[5] == 1) {
- notify_initial_state_done(skb, seq);
+ err = notify_initial_state_done(skb, seq);
goto out;
}
n = cb->args[4]++;
if (cb->args[4] < cb->args[3])
flags |= NOTIFY_CONTINUES;
if (n < 1) {
- notify_resource_state_change(skb, seq, state_change->resource,
+ err = notify_resource_state_change(skb, seq, state_change->resource,
NOTIFY_EXISTS | flags);
goto next;
}
n--;
if (n < state_change->n_connections) {
- notify_connection_state_change(skb, seq, &state_change->connections[n],
+ err = notify_connection_state_change(skb, seq, &state_change->connections[n],
NOTIFY_EXISTS | flags);
goto next;
}
n -= state_change->n_connections;
if (n < state_change->n_devices) {
- notify_device_state_change(skb, seq, &state_change->devices[n],
+ err = notify_device_state_change(skb, seq, &state_change->devices[n],
NOTIFY_EXISTS | flags);
goto next;
}
n -= state_change->n_devices;
if (n < state_change->n_devices * state_change->n_connections) {
- notify_peer_device_state_change(skb, seq, &state_change->peer_devices[n],
+ err = notify_peer_device_state_change(skb, seq, &state_change->peer_devices[n],
NOTIFY_EXISTS | flags);
goto next;
}
@@ -4951,7 +4957,10 @@ static int get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
cb->args[4] = 0;
}
out:
- return skb->len;
+ if (err)
+ return err;
+ else
+ return skb->len;
}
int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb)
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index eea0c4aec978..b636d9c08c0e 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -1505,7 +1505,7 @@ int drbd_bitmap_io_from_worker(struct drbd_device *device,
return rv;
}
-void notify_resource_state_change(struct sk_buff *skb,
+int notify_resource_state_change(struct sk_buff *skb,
unsigned int seq,
struct drbd_resource_state_change *resource_state_change,
enum drbd_notification_type type)
@@ -1518,10 +1518,10 @@ void notify_resource_state_change(struct sk_buff *skb,
.res_susp_fen = resource_state_change->susp_fen[NEW],
};
- notify_resource_state(skb, seq, resource, &resource_info, type);
+ return notify_resource_state(skb, seq, resource, &resource_info, type);
}
-void notify_connection_state_change(struct sk_buff *skb,
+int notify_connection_state_change(struct sk_buff *skb,
unsigned int seq,
struct drbd_connection_state_change *connection_state_change,
enum drbd_notification_type type)
@@ -1532,10 +1532,10 @@ void notify_connection_state_change(struct sk_buff *skb,
.conn_role = connection_state_change->peer_role[NEW],
};
- notify_connection_state(skb, seq, connection, &connection_info, type);
+ return notify_connection_state(skb, seq, connection, &connection_info, type);
}
-void notify_device_state_change(struct sk_buff *skb,
+int notify_device_state_change(struct sk_buff *skb,
unsigned int seq,
struct drbd_device_state_change *device_state_change,
enum drbd_notification_type type)
@@ -1545,10 +1545,10 @@ void notify_device_state_change(struct sk_buff *skb,
.dev_disk_state = device_state_change->disk_state[NEW],
};
- notify_device_state(skb, seq, device, &device_info, type);
+ return notify_device_state(skb, seq, device, &device_info, type);
}
-void notify_peer_device_state_change(struct sk_buff *skb,
+int notify_peer_device_state_change(struct sk_buff *skb,
unsigned int seq,
struct drbd_peer_device_state_change *p,
enum drbd_notification_type type)
@@ -1562,7 +1562,7 @@ void notify_peer_device_state_change(struct sk_buff *skb,
.peer_resync_susp_dependency = p->resync_susp_dependency[NEW],
};
- notify_peer_device_state(skb, seq, peer_device, &peer_device_info, type);
+ return notify_peer_device_state(skb, seq, peer_device, &peer_device_info, type);
}
static void broadcast_state_change(struct drbd_state_change *state_change)
@@ -1570,7 +1570,7 @@ static void broadcast_state_change(struct drbd_state_change *state_change)
struct drbd_resource_state_change *resource_state_change = &state_change->resource[0];
bool resource_state_has_changed;
unsigned int n_device, n_connection, n_peer_device, n_peer_devices;
- void (*last_func)(struct sk_buff *, unsigned int, void *,
+ int (*last_func)(struct sk_buff *, unsigned int, void *,
enum drbd_notification_type) = NULL;
void *uninitialized_var(last_arg);
diff --git a/drivers/block/drbd/drbd_state_change.h b/drivers/block/drbd/drbd_state_change.h
index 9e503a1a0bfb..e5a956d26866 100644
--- a/drivers/block/drbd/drbd_state_change.h
+++ b/drivers/block/drbd/drbd_state_change.h
@@ -43,19 +43,19 @@ extern struct drbd_state_change *remember_old_state(struct drbd_resource *, gfp_
extern void copy_old_to_new_state_change(struct drbd_state_change *);
extern void forget_state_change(struct drbd_state_change *);
-extern void notify_resource_state_change(struct sk_buff *,
+extern int notify_resource_state_change(struct sk_buff *,
unsigned int,
struct drbd_resource_state_change *,
enum drbd_notification_type type);
-extern void notify_connection_state_change(struct sk_buff *,
+extern int notify_connection_state_change(struct sk_buff *,
unsigned int,
struct drbd_connection_state_change *,
enum drbd_notification_type type);
-extern void notify_device_state_change(struct sk_buff *,
+extern int notify_device_state_change(struct sk_buff *,
unsigned int,
struct drbd_device_state_change *,
enum drbd_notification_type type);
-extern void notify_peer_device_state_change(struct sk_buff *,
+extern int notify_peer_device_state_change(struct sk_buff *,
unsigned int,
struct drbd_peer_device_state_change *,
enum drbd_notification_type type);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f236b7984b94..2ff17b397cd2 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -773,33 +773,33 @@ static ssize_t loop_attr_backing_file_show(struct loop_device *lo, char *buf)
static ssize_t loop_attr_offset_show(struct loop_device *lo, char *buf)
{
- return sprintf(buf, "%llu\n", (unsigned long long)lo->lo_offset);
+ return sysfs_emit(buf, "%llu\n", (unsigned long long)lo->lo_offset);
}
static ssize_t loop_attr_sizelimit_show(struct loop_device *lo, char *buf)
{
- return sprintf(buf, "%llu\n", (unsigned long long)lo->lo_sizelimit);
+ return sysfs_emit(buf, "%llu\n", (unsigned long long)lo->lo_sizelimit);
}
static ssize_t loop_attr_autoclear_show(struct loop_device *lo, char *buf)
{
int autoclear = (lo->lo_flags & LO_FLAGS_AUTOCLEAR);
- return sprintf(buf, "%s\n", autoclear ? "1" : "0");
+ return sysfs_emit(buf, "%s\n", autoclear ? "1" : "0");
}
static ssize_t loop_attr_partscan_show(struct loop_device *lo, char *buf)
{
int partscan = (lo->lo_flags & LO_FLAGS_PARTSCAN);
- return sprintf(buf, "%s\n", partscan ? "1" : "0");
+ return sysfs_emit(buf, "%s\n", partscan ? "1" : "0");
}
static ssize_t loop_attr_dio_show(struct loop_device *lo, char *buf)
{
int dio = (lo->lo_flags & LO_FLAGS_DIRECT_IO);
- return sprintf(buf, "%s\n", dio ? "1" : "0");
+ return sysfs_emit(buf, "%s\n", dio ? "1" : "0");
}
LOOP_ATTR_RO(backing_file);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 302260e9002c..45bd0d7d6a94 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -692,9 +692,17 @@ static int virtblk_probe(struct virtio_device *vdev)
err = virtio_cread_feature(vdev, VIRTIO_BLK_F_BLK_SIZE,
struct virtio_blk_config, blk_size,
&blk_size);
- if (!err)
+ if (!err) {
+ err = blk_validate_block_size(blk_size);
+ if (err) {
+ dev_err(&vdev->dev,
+ "virtio_blk: invalid block size: 0x%x\n",
+ blk_size);
+ goto out_free_tags;
+ }
+
blk_queue_logical_block_size(q, blk_size);
- else
+ } else
blk_size = queue_logical_block_size(q);
/* Use topology information if available */
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index d420597b0d2b..17ea0ba50278 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1266,17 +1266,16 @@ static void blkif_free_ring(struct blkfront_ring_info *rinfo)
list_for_each_entry_safe(persistent_gnt, n,
&rinfo->grants, node) {
list_del(&persistent_gnt->node);
- if (persistent_gnt->gref != GRANT_INVALID_REF) {
- gnttab_end_foreign_access(persistent_gnt->gref,
- 0, 0UL);
- rinfo->persistent_gnts_c--;
- }
+ if (persistent_gnt->gref == GRANT_INVALID_REF ||
+ !gnttab_try_end_foreign_access(persistent_gnt->gref))
+ continue;
+
+ rinfo->persistent_gnts_c--;
if (info->feature_persistent)
__free_page(persistent_gnt->page);
kfree(persistent_gnt);
}
}
- BUG_ON(rinfo->persistent_gnts_c != 0);
for (i = 0; i < BLK_RING_SIZE(info); i++) {
/*
@@ -1333,7 +1332,8 @@ static void blkif_free_ring(struct blkfront_ring_info *rinfo)
rinfo->ring_ref[i] = GRANT_INVALID_REF;
}
}
- free_pages((unsigned long)rinfo->ring.sring, get_order(info->nr_ring_pages * XEN_PAGE_SIZE));
+ free_pages_exact(rinfo->ring.sring,
+ info->nr_ring_pages * XEN_PAGE_SIZE);
rinfo->ring.sring = NULL;
if (rinfo->irq)
@@ -1417,9 +1417,15 @@ static int blkif_get_final_status(enum blk_req_status s1,
return BLKIF_RSP_OKAY;
}
-static bool blkif_completion(unsigned long *id,
- struct blkfront_ring_info *rinfo,
- struct blkif_response *bret)
+/*
+ * Return values:
+ * 1 response processed.
+ * 0 missing further responses.
+ * -1 error while processing.
+ */
+static int blkif_completion(unsigned long *id,
+ struct blkfront_ring_info *rinfo,
+ struct blkif_response *bret)
{
int i = 0;
struct scatterlist *sg;
@@ -1493,42 +1499,43 @@ static bool blkif_completion(unsigned long *id,
}
/* Add the persistent grant into the list of free grants */
for (i = 0; i < num_grant; i++) {
- if (gnttab_query_foreign_access(s->grants_used[i]->gref)) {
+ if (!gnttab_try_end_foreign_access(s->grants_used[i]->gref)) {
/*
* If the grant is still mapped by the backend (the
* backend has chosen to make this grant persistent)
* we add it at the head of the list, so it will be
* reused first.
*/
- if (!info->feature_persistent)
- pr_alert_ratelimited("backed has not unmapped grant: %u\n",
- s->grants_used[i]->gref);
+ if (!info->feature_persistent) {
+ pr_alert("backed has not unmapped grant: %u\n",
+ s->grants_used[i]->gref);
+ return -1;
+ }
list_add(&s->grants_used[i]->node, &rinfo->grants);
rinfo->persistent_gnts_c++;
} else {
/*
- * If the grant is not mapped by the backend we end the
- * foreign access and add it to the tail of the list,
- * so it will not be picked again unless we run out of
- * persistent grants.
+ * If the grant is not mapped by the backend we add it
+ * to the tail of the list, so it will not be picked
+ * again unless we run out of persistent grants.
*/
- gnttab_end_foreign_access(s->grants_used[i]->gref, 0, 0UL);
s->grants_used[i]->gref = GRANT_INVALID_REF;
list_add_tail(&s->grants_used[i]->node, &rinfo->grants);
}
}
if (s->req.operation == BLKIF_OP_INDIRECT) {
for (i = 0; i < INDIRECT_GREFS(num_grant); i++) {
- if (gnttab_query_foreign_access(s->indirect_grants[i]->gref)) {
- if (!info->feature_persistent)
- pr_alert_ratelimited("backed has not unmapped grant: %u\n",
- s->indirect_grants[i]->gref);
+ if (!gnttab_try_end_foreign_access(s->indirect_grants[i]->gref)) {
+ if (!info->feature_persistent) {
+ pr_alert("backed has not unmapped grant: %u\n",
+ s->indirect_grants[i]->gref);
+ return -1;
+ }
list_add(&s->indirect_grants[i]->node, &rinfo->grants);
rinfo->persistent_gnts_c++;
} else {
struct page *indirect_page;
- gnttab_end_foreign_access(s->indirect_grants[i]->gref, 0, 0UL);
/*
* Add the used indirect page back to the list of
* available pages for indirect grefs.
@@ -1610,12 +1617,17 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
}
if (bret.operation != BLKIF_OP_DISCARD) {
+ int ret;
+
/*
* We may need to wait for an extra response if the
* I/O request is split in 2
*/
- if (!blkif_completion(&id, rinfo, &bret))
+ ret = blkif_completion(&id, rinfo, &bret);
+ if (!ret)
continue;
+ if (unlikely(ret < 0))
+ goto err;
}
if (add_id_to_freelist(rinfo, id)) {
@@ -1717,8 +1729,7 @@ static int setup_blkring(struct xenbus_device *dev,
for (i = 0; i < info->nr_ring_pages; i++)
rinfo->ring_ref[i] = GRANT_INVALID_REF;
- sring = (struct blkif_sring *)__get_free_pages(GFP_NOIO | __GFP_HIGH,
- get_order(ring_size));
+ sring = alloc_pages_exact(ring_size, GFP_NOIO);
if (!sring) {
xenbus_dev_fatal(dev, -ENOMEM, "allocating shared ring");
return -ENOMEM;
@@ -1728,7 +1739,7 @@ static int setup_blkring(struct xenbus_device *dev,
err = xenbus_grant_ring(dev, rinfo->ring.sring, info->nr_ring_pages, gref);
if (err < 0) {
- free_pages((unsigned long)sring, get_order(ring_size));
+ free_pages_exact(sring, ring_size);
rinfo->ring.sring = NULL;
goto fail;
}
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 2632b0fdb1b5..ba4c546db756 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2004,6 +2004,13 @@ static void virtcons_remove(struct virtio_device *vdev)
list_del(&portdev->list);
spin_unlock_irq(&pdrvdata_lock);
+ /* Device is going away, exit any polling for buffers */
+ virtio_break_device(vdev);
+ if (use_multiport(portdev))
+ flush_work(&portdev->control_work);
+ else
+ flush_work(&portdev->config_work);
+
/* Disable interrupts for vqs */
vdev->config->reset(vdev);
/* Finish up work that's lined up */
@@ -2277,7 +2284,7 @@ static struct virtio_driver virtio_rproc_serial = {
.remove = virtcons_remove,
};
-static int __init init(void)
+static int __init virtio_console_init(void)
{
int err;
@@ -2314,7 +2321,7 @@ static int __init init(void)
return err;
}
-static void __exit fini(void)
+static void __exit virtio_console_fini(void)
{
reclaim_dma_bufs();
@@ -2324,8 +2331,8 @@ static void __exit fini(void)
class_destroy(pdrvdata.class);
debugfs_remove_recursive(pdrvdata.debugfs_dir);
}
-module_init(init);
-module_exit(fini);
+module_init(virtio_console_init);
+module_exit(virtio_console_fini);
MODULE_DESCRIPTION("Virtio console driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/clk/clk-clps711x.c b/drivers/clk/clk-clps711x.c
index 9193f64561f6..4dcf15a88269 100644
--- a/drivers/clk/clk-clps711x.c
+++ b/drivers/clk/clk-clps711x.c
@@ -32,11 +32,13 @@ static const struct clk_div_table spi_div_table[] = {
{ .val = 1, .div = 8, },
{ .val = 2, .div = 2, },
{ .val = 3, .div = 1, },
+ { /* sentinel */ }
};
static const struct clk_div_table timer_div_table[] = {
{ .val = 0, .div = 256, },
{ .val = 1, .div = 1, },
+ { /* sentinel */ }
};
struct clps711x_clk {
diff --git a/drivers/clk/loongson1/clk-loongson1c.c b/drivers/clk/loongson1/clk-loongson1c.c
index 3466f7320b40..e3aa502761a3 100644
--- a/drivers/clk/loongson1/clk-loongson1c.c
+++ b/drivers/clk/loongson1/clk-loongson1c.c
@@ -40,6 +40,7 @@ static const struct clk_div_table ahb_div_table[] = {
[1] = { .val = 1, .div = 4 },
[2] = { .val = 2, .div = 3 },
[3] = { .val = 3, .div = 3 },
+ [4] = { /* sentinel */ }
};
void __init ls1x_clk_init(void)
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index 29abb600d7e1..e4d605dcc03d 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -644,6 +644,7 @@ static const struct frac_entry frac_table_pixel[] = {
{ 2, 9 },
{ 4, 9 },
{ 1, 1 },
+ { 2, 3 },
{ }
};
diff --git a/drivers/clk/tegra/clk-emc.c b/drivers/clk/tegra/clk-emc.c
index 74e7544f861b..348e7196b7b9 100644
--- a/drivers/clk/tegra/clk-emc.c
+++ b/drivers/clk/tegra/clk-emc.c
@@ -190,6 +190,7 @@ static struct tegra_emc *emc_ensure_emc_driver(struct tegra_clk_emc *tegra)
tegra->emc = platform_get_drvdata(pdev);
if (!tegra->emc) {
+ put_device(&pdev->dev);
pr_err("%s: cannot find EMC driver\n", __func__);
return NULL;
}
diff --git a/drivers/clk/uniphier/clk-uniphier-fixed-rate.c b/drivers/clk/uniphier/clk-uniphier-fixed-rate.c
index 0ad0d46173c0..225de2302cb7 100644
--- a/drivers/clk/uniphier/clk-uniphier-fixed-rate.c
+++ b/drivers/clk/uniphier/clk-uniphier-fixed-rate.c
@@ -33,6 +33,7 @@ struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev,
init.name = name;
init.ops = &clk_fixed_rate_ops;
+ init.flags = 0;
init.parent_names = NULL;
init.num_parents = 0;
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index e2c6e43cf8ca..3d748eac1a68 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -305,10 +305,14 @@ config ARM_ARCH_TIMER_EVTSTREAM
This must be disabled for hardware validation purposes to detect any
hardware anomalies of missing events.
+config ARM_ARCH_TIMER_OOL_WORKAROUND
+ bool
+
config FSL_ERRATUM_A008585
bool "Workaround for Freescale/NXP Erratum A-008585"
default y
depends on ARM_ARCH_TIMER && ARM64
+ select ARM_ARCH_TIMER_OOL_WORKAROUND
help
This option enables a workaround for Freescale/NXP Erratum
A-008585 ("ARM generic timer may contain an erroneous
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 28037d0b8dcd..55348e7c1e6f 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -230,8 +230,10 @@ static int __init parse_pmtmr(char *arg)
int ret;
ret = kstrtouint(arg, 16, &base);
- if (ret)
- return ret;
+ if (ret) {
+ pr_warn("PMTMR: invalid 'pmtmr=' value: '%s'\n", arg);
+ return 1;
+ }
pr_info("PMTMR IOPort override: 0x%04x -> 0x%04x\n", pmtmr_ioport,
base);
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 5d7f83d27093..e70d0974470c 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -96,41 +96,159 @@ early_param("clocksource.arm_arch_timer.evtstrm", early_evtstrm_cfg);
*/
#ifdef CONFIG_FSL_ERRATUM_A008585
+/*
+ * The number of retries is an arbitrary value well beyond the highest number
+ * of iterations the loop has been observed to take.
+ */
+#define __fsl_a008585_read_reg(reg) ({ \
+ u64 _old, _new; \
+ int _retries = 200; \
+ \
+ do { \
+ _old = read_sysreg(reg); \
+ _new = read_sysreg(reg); \
+ _retries--; \
+ } while (unlikely(_old != _new) && _retries); \
+ \
+ WARN_ON_ONCE(!_retries); \
+ _new; \
+})
+
+static u32 notrace fsl_a008585_read_cntp_tval_el0(void)
+{
+ return __fsl_a008585_read_reg(cntp_tval_el0);
+}
+
+static u32 notrace fsl_a008585_read_cntv_tval_el0(void)
+{
+ return __fsl_a008585_read_reg(cntv_tval_el0);
+}
+
+static u64 notrace fsl_a008585_read_cntvct_el0(void)
+{
+ return __fsl_a008585_read_reg(cntvct_el0);
+}
+#endif
+
+#ifdef CONFIG_ARM64_ERRATUM_1188873
+static u64 notrace arm64_1188873_read_cntvct_el0(void)
+{
+ return read_sysreg(cntvct_el0);
+}
+#endif
+
+#ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND
+const struct arch_timer_erratum_workaround *timer_unstable_counter_workaround = NULL;
+EXPORT_SYMBOL_GPL(timer_unstable_counter_workaround);
+
DEFINE_STATIC_KEY_FALSE(arch_timer_read_ool_enabled);
EXPORT_SYMBOL_GPL(arch_timer_read_ool_enabled);
-static int fsl_a008585_enable = -1;
+static const struct arch_timer_erratum_workaround ool_workarounds[] = {
+#ifdef CONFIG_FSL_ERRATUM_A008585
+ {
+ .match_type = ate_match_dt,
+ .id = "fsl,erratum-a008585",
+ .desc = "Freescale erratum a005858",
+ .read_cntp_tval_el0 = fsl_a008585_read_cntp_tval_el0,
+ .read_cntv_tval_el0 = fsl_a008585_read_cntv_tval_el0,
+ .read_cntvct_el0 = fsl_a008585_read_cntvct_el0,
+ },
+#endif
+#ifdef CONFIG_ARM64_ERRATUM_1188873
+ {
+ .match_type = ate_match_local_cap_id,
+ .id = (void *)ARM64_WORKAROUND_1188873,
+ .desc = "ARM erratum 1188873",
+ .read_cntvct_el0 = arm64_1188873_read_cntvct_el0,
+ },
+#endif
+};
-static int __init early_fsl_a008585_cfg(char *buf)
+typedef bool (*ate_match_fn_t)(const struct arch_timer_erratum_workaround *,
+ const void *);
+
+static
+bool arch_timer_check_dt_erratum(const struct arch_timer_erratum_workaround *wa,
+ const void *arg)
{
- int ret;
- bool val;
+ const struct device_node *np = arg;
- ret = strtobool(buf, &val);
- if (ret)
- return ret;
+ return of_property_read_bool(np, wa->id);
+}
- fsl_a008585_enable = val;
- return 0;
+static
+bool arch_timer_check_local_cap_erratum(const struct arch_timer_erratum_workaround *wa,
+ const void *arg)
+{
+ return this_cpu_has_cap((uintptr_t)wa->id);
}
-early_param("clocksource.arm_arch_timer.fsl-a008585", early_fsl_a008585_cfg);
-u32 __fsl_a008585_read_cntp_tval_el0(void)
+static const struct arch_timer_erratum_workaround *
+arch_timer_iterate_errata(enum arch_timer_erratum_match_type type,
+ ate_match_fn_t match_fn,
+ void *arg)
{
- return __fsl_a008585_read_reg(cntp_tval_el0);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ool_workarounds); i++) {
+ if (ool_workarounds[i].match_type != type)
+ continue;
+
+ if (match_fn(&ool_workarounds[i], arg))
+ return &ool_workarounds[i];
+ }
+
+ return NULL;
}
-u32 __fsl_a008585_read_cntv_tval_el0(void)
+static
+void arch_timer_enable_workaround(const struct arch_timer_erratum_workaround *wa)
{
- return __fsl_a008585_read_reg(cntv_tval_el0);
+ timer_unstable_counter_workaround = wa;
+ static_branch_enable(&arch_timer_read_ool_enabled);
}
-u64 __fsl_a008585_read_cntvct_el0(void)
+static void arch_timer_check_ool_workaround(enum arch_timer_erratum_match_type type,
+ void *arg)
{
- return __fsl_a008585_read_reg(cntvct_el0);
+ const struct arch_timer_erratum_workaround *wa;
+ ate_match_fn_t match_fn = NULL;
+ bool local = false;
+
+ switch (type) {
+ case ate_match_dt:
+ match_fn = arch_timer_check_dt_erratum;
+ break;
+ case ate_match_local_cap_id:
+ match_fn = arch_timer_check_local_cap_erratum;
+ local = true;
+ break;
+ default:
+ WARN_ON(1);
+ return;
+ }
+
+ wa = arch_timer_iterate_errata(type, match_fn, arg);
+ if (!wa)
+ return;
+
+ if (needs_unstable_timer_counter_workaround()) {
+ if (wa != timer_unstable_counter_workaround)
+ pr_warn("Can't enable workaround for %s (clashes with %s\n)",
+ wa->desc,
+ timer_unstable_counter_workaround->desc);
+ return;
+ }
+
+ arch_timer_enable_workaround(wa);
+ pr_info("Enabling %s workaround for %s\n",
+ local ? "local" : "global", wa->desc);
}
-EXPORT_SYMBOL(__fsl_a008585_read_cntvct_el0);
-#endif /* CONFIG_FSL_ERRATUM_A008585 */
+
+#else
+#define arch_timer_check_ool_workaround(t,a) do { } while(0)
+#endif /* CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND */
static __always_inline
void arch_timer_reg_write(int access, enum arch_timer_reg reg, u32 val,
@@ -281,8 +399,8 @@ static __always_inline void set_next_event(const int access, unsigned long evt,
arch_timer_reg_write(access, ARCH_TIMER_REG_CTRL, ctrl, clk);
}
-#ifdef CONFIG_FSL_ERRATUM_A008585
-static __always_inline void fsl_a008585_set_next_event(const int access,
+#ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND
+static __always_inline void erratum_set_next_event_generic(const int access,
unsigned long evt, struct clock_event_device *clk)
{
unsigned long ctrl;
@@ -300,20 +418,20 @@ static __always_inline void fsl_a008585_set_next_event(const int access,
arch_timer_reg_write(access, ARCH_TIMER_REG_CTRL, ctrl, clk);
}
-static int fsl_a008585_set_next_event_virt(unsigned long evt,
+static int erratum_set_next_event_virt(unsigned long evt,
struct clock_event_device *clk)
{
- fsl_a008585_set_next_event(ARCH_TIMER_VIRT_ACCESS, evt, clk);
+ erratum_set_next_event_generic(ARCH_TIMER_VIRT_ACCESS, evt, clk);
return 0;
}
-static int fsl_a008585_set_next_event_phys(unsigned long evt,
+static int erratum_set_next_event_phys(unsigned long evt,
struct clock_event_device *clk)
{
- fsl_a008585_set_next_event(ARCH_TIMER_PHYS_ACCESS, evt, clk);
+ erratum_set_next_event_generic(ARCH_TIMER_PHYS_ACCESS, evt, clk);
return 0;
}
-#endif /* CONFIG_FSL_ERRATUM_A008585 */
+#endif /* CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND */
static int arch_timer_set_next_event_virt(unsigned long evt,
struct clock_event_device *clk)
@@ -343,16 +461,16 @@ static int arch_timer_set_next_event_phys_mem(unsigned long evt,
return 0;
}
-static void fsl_a008585_set_sne(struct clock_event_device *clk)
+static void erratum_workaround_set_sne(struct clock_event_device *clk)
{
-#ifdef CONFIG_FSL_ERRATUM_A008585
+#ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND
if (!static_branch_unlikely(&arch_timer_read_ool_enabled))
return;
if (arch_timer_uses_ppi == VIRT_PPI)
- clk->set_next_event = fsl_a008585_set_next_event_virt;
+ clk->set_next_event = erratum_set_next_event_virt;
else
- clk->set_next_event = fsl_a008585_set_next_event_phys;
+ clk->set_next_event = erratum_set_next_event_phys;
#endif
}
@@ -385,7 +503,9 @@ static void __arch_timer_setup(unsigned type,
BUG();
}
- fsl_a008585_set_sne(clk);
+ arch_timer_check_ool_workaround(ate_match_local_cap_id, NULL);
+
+ erratum_workaround_set_sne(clk);
} else {
clk->features |= CLOCK_EVT_FEAT_DYNIRQ;
clk->name = "arch_mem_timer";
@@ -614,7 +734,7 @@ static void __init arch_counter_register(unsigned type)
clocksource_counter.archdata.vdso_direct = true;
-#ifdef CONFIG_FSL_ERRATUM_A008585
+#ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND
/*
* Don't use the vdso fastpath if errata require using
* the out-of-line counter accessor.
@@ -902,14 +1022,8 @@ static int __init arch_timer_of_init(struct device_node *np)
arch_timer_c3stop = !of_property_read_bool(np, "always-on");
-#ifdef CONFIG_FSL_ERRATUM_A008585
- if (fsl_a008585_enable < 0)
- fsl_a008585_enable = of_property_read_bool(np, "fsl,erratum-a008585");
- if (fsl_a008585_enable) {
- static_branch_enable(&arch_timer_read_ool_enabled);
- pr_info("Enabling workaround for FSL erratum A-008585\n");
- }
-#endif
+ /* Check for globally applicable workarounds */
+ arch_timer_check_ool_workaround(ate_match_dt, np);
/*
* If we cannot rely on firmware initializing the timer registers then
diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c
index c4581510c3a1..6f9e228fc8ad 100644
--- a/drivers/crypto/ccp/ccp-dmaengine.c
+++ b/drivers/crypto/ccp/ccp-dmaengine.c
@@ -621,6 +621,20 @@ static int ccp_terminate_all(struct dma_chan *dma_chan)
return 0;
}
+static void ccp_dma_release(struct ccp_device *ccp)
+{
+ struct ccp_dma_chan *chan;
+ struct dma_chan *dma_chan;
+ unsigned int i;
+
+ for (i = 0; i < ccp->cmd_q_count; i++) {
+ chan = ccp->ccp_dma_chan + i;
+ dma_chan = &chan->dma_chan;
+ tasklet_kill(&chan->cleanup_tasklet);
+ list_del_rcu(&dma_chan->device_node);
+ }
+}
+
int ccp_dmaengine_register(struct ccp_device *ccp)
{
struct ccp_dma_chan *chan;
@@ -715,6 +729,7 @@ int ccp_dmaengine_register(struct ccp_device *ccp)
return 0;
err_reg:
+ ccp_dma_release(ccp);
kmem_cache_destroy(ccp->dma_desc_cache);
err_cache:
@@ -728,6 +743,7 @@ void ccp_dmaengine_unregister(struct ccp_device *ccp)
struct dma_device *dma_dev = &ccp->dma_dev;
dma_async_device_unregister(dma_dev);
+ ccp_dma_release(ccp);
kmem_cache_destroy(ccp->dma_desc_cache);
kmem_cache_destroy(ccp->dma_cmd_cache);
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index 0e14a6642de4..ad714798f5d8 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -328,7 +328,7 @@ static int mxs_dcp_aes_block_crypt(struct crypto_async_request *arq)
memset(key + AES_KEYSIZE_128, 0, AES_KEYSIZE_128);
}
- for_each_sg(req->src, src, sg_nents(src), i) {
+ for_each_sg(req->src, src, sg_nents(req->src), i) {
src_buf = sg_virt(src);
len = sg_dma_len(src);
tlen += len;
diff --git a/drivers/crypto/qat/qat_common/qat_crypto.c b/drivers/crypto/qat/qat_common/qat_crypto.c
index 3852d31ce0a4..37a9f969c59c 100644
--- a/drivers/crypto/qat/qat_common/qat_crypto.c
+++ b/drivers/crypto/qat/qat_common/qat_crypto.c
@@ -170,6 +170,14 @@ int qat_crypto_dev_config(struct adf_accel_dev *accel_dev)
goto err;
if (adf_cfg_section_add(accel_dev, "Accelerator0"))
goto err;
+
+ /* Temporarily set the number of crypto instances to zero to avoid
+ * registering the crypto algorithms.
+ * This will be removed when the algorithms will support the
+ * CRYPTO_TFM_REQ_MAY_BACKLOG flag
+ */
+ instances = 0;
+
for (i = 0; i < instances; i++) {
val = i;
snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_BANK_NUM, i);
diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig
index c3d524ea6998..f39eeca87932 100644
--- a/drivers/crypto/vmx/Kconfig
+++ b/drivers/crypto/vmx/Kconfig
@@ -1,7 +1,11 @@
config CRYPTO_DEV_VMX_ENCRYPT
tristate "Encryption acceleration support on P8 CPU"
depends on CRYPTO_DEV_VMX
+ select CRYPTO_AES
+ select CRYPTO_CBC
+ select CRYPTO_CTR
select CRYPTO_GHASH
+ select CRYPTO_XTS
default m
help
Support for VMX cryptographic acceleration instructions on Power8 CPU.
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index c15ca560fe60..ca266fcca186 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1392,7 +1392,7 @@ at_xdmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
{
struct at_xdmac_chan *atchan = to_at_xdmac_chan(chan);
struct at_xdmac *atxdmac = to_at_xdmac(atchan->chan.device);
- struct at_xdmac_desc *desc, *_desc;
+ struct at_xdmac_desc *desc, *_desc, *iter;
struct list_head *descs_list;
enum dma_status ret;
int residue, retry;
@@ -1507,11 +1507,13 @@ at_xdmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
* microblock.
*/
descs_list = &desc->descs_list;
- list_for_each_entry_safe(desc, _desc, descs_list, desc_node) {
- dwidth = at_xdmac_get_dwidth(desc->lld.mbr_cfg);
- residue -= (desc->lld.mbr_ubc & 0xffffff) << dwidth;
- if ((desc->lld.mbr_nda & 0xfffffffc) == cur_nda)
+ list_for_each_entry_safe(iter, _desc, descs_list, desc_node) {
+ dwidth = at_xdmac_get_dwidth(iter->lld.mbr_cfg);
+ residue -= (iter->lld.mbr_ubc & 0xffffff) << dwidth;
+ if ((iter->lld.mbr_nda & 0xfffffffc) == cur_nda) {
+ desc = iter;
break;
+ }
}
residue += cur_ubc << dwidth;
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 558d509b7d85..4337cf9defc2 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1528,7 +1528,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
u32 reg, val, shift, num_map, i;
int ret = 0;
- if (IS_ERR(np) || IS_ERR(gpr_np))
+ if (IS_ERR(np) || !gpr_np)
goto out;
event_remap = of_find_property(np, propname, NULL);
@@ -1576,7 +1576,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
}
out:
- if (!IS_ERR(gpr_np))
+ if (gpr_np)
of_node_put(gpr_np);
return ret;
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index fceaafd67ec6..e619ced030d5 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -763,6 +763,7 @@ int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
{
const struct efivar_operations *ops;
efi_status_t status;
+ unsigned long varsize;
if (!__efivars)
return -EINVAL;
@@ -785,15 +786,17 @@ int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
return efivar_entry_set_nonblocking(name, vendor, attributes,
size, data);
+ varsize = size + ucs2_strsize(name, 1024);
if (!block) {
if (down_trylock(&efivars_lock))
return -EBUSY;
+ status = check_var_size_nonblocking(attributes, varsize);
} else {
if (down_interruptible(&efivars_lock))
return -EINTR;
+ status = check_var_size(attributes, varsize);
}
- status = check_var_size(attributes, size + ucs2_strsize(name, 1024));
if (status != EFI_SUCCESS) {
up(&efivars_lock);
return -ENOSPC;
diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c
index 79a48c37fb35..2a6d9572d639 100644
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -64,6 +64,21 @@ struct psci_operations psci_ops = {
.smccc_version = SMCCC_VERSION_1_0,
};
+enum arm_smccc_conduit arm_smccc_1_1_get_conduit(void)
+{
+ if (psci_ops.smccc_version < SMCCC_VERSION_1_1)
+ return SMCCC_CONDUIT_NONE;
+
+ switch (psci_ops.conduit) {
+ case PSCI_CONDUIT_SMC:
+ return SMCCC_CONDUIT_SMC;
+ case PSCI_CONDUIT_HVC:
+ return SMCCC_CONDUIT_HVC;
+ default:
+ return SMCCC_CONDUIT_NONE;
+ }
+}
+
typedef unsigned long (psci_fn)(unsigned long, unsigned long,
unsigned long, unsigned long);
static psci_fn *invoke_psci_fn;
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 595bf12e7653..062d0eb50799 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -462,12 +462,12 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
err = kobject_init_and_add(&entry->kobj, &fw_cfg_sysfs_entry_ktype,
fw_cfg_sel_ko, "%d", entry->f.select);
if (err)
- goto err_register;
+ goto err_put_entry;
/* add raw binary content access */
err = sysfs_create_bin_file(&entry->kobj, &fw_cfg_sysfs_attr_raw);
if (err)
- goto err_add_raw;
+ goto err_del_entry;
/* try adding "/sys/firmware/qemu_fw_cfg/by_name/" symlink */
fw_cfg_build_symlink(fw_cfg_fname_kset, &entry->kobj, entry->f.name);
@@ -476,10 +476,10 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
fw_cfg_sysfs_cache_enlist(entry);
return 0;
-err_add_raw:
+err_del_entry:
kobject_del(&entry->kobj);
-err_register:
- kfree(entry);
+err_put_entry:
+ kobject_put(&entry->kobj);
return err;
}
diff --git a/drivers/gpio/gpio-ts4900.c b/drivers/gpio/gpio-ts4900.c
index 5bd21725e604..930a6098b758 100644
--- a/drivers/gpio/gpio-ts4900.c
+++ b/drivers/gpio/gpio-ts4900.c
@@ -1,7 +1,7 @@
/*
* Digital I/O driver for Technologic Systems I2C FPGA Core
*
- * Copyright (C) 2015 Technologic Systems
+ * Copyright (C) 2015, 2018 Technologic Systems
* Copyright (C) 2016 Savoir-Faire Linux
*
* This program is free software; you can redistribute it and/or
@@ -52,19 +52,33 @@ static int ts4900_gpio_direction_input(struct gpio_chip *chip,
{
struct ts4900_gpio_priv *priv = gpiochip_get_data(chip);
- /*
- * This will clear the output enable bit, the other bits are
- * dontcare when this is cleared
+ /* Only clear the OE bit here, requires a RMW. Prevents potential issue
+ * with OE and data getting to the physical pin at different times.
*/
- return regmap_write(priv->regmap, offset, 0);
+ return regmap_update_bits(priv->regmap, offset, TS4900_GPIO_OE, 0);
}
static int ts4900_gpio_direction_output(struct gpio_chip *chip,
unsigned int offset, int value)
{
struct ts4900_gpio_priv *priv = gpiochip_get_data(chip);
+ unsigned int reg;
int ret;
+ /* If changing from an input to an output, we need to first set the
+ * proper data bit to what is requested and then set OE bit. This
+ * prevents a glitch that can occur on the IO line
+ */
+ regmap_read(priv->regmap, offset, ®);
+ if (!(reg & TS4900_GPIO_OE)) {
+ if (value)
+ reg = TS4900_GPIO_OUT;
+ else
+ reg &= ~TS4900_GPIO_OUT;
+
+ regmap_write(priv->regmap, offset, reg);
+ }
+
if (value)
ret = regmap_write(priv->regmap, offset, TS4900_GPIO_OE |
TS4900_GPIO_OUT);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index 6a3470f84998..732713ff3190 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -607,6 +607,8 @@ static struct kfd_event_waiter *alloc_event_waiters(uint32_t num_events)
event_waiters = kmalloc_array(num_events,
sizeof(struct kfd_event_waiter),
GFP_KERNEL);
+ if (!event_waiters)
+ return NULL;
for (i = 0; (event_waiters) && (i < num_events) ; i++) {
INIT_LIST_HEAD(&event_waiters[i].waiters);
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 5b5970f0e91d..6f93250518e3 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3791,16 +3791,8 @@ static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
connector->name, dc_bpc);
info->bpc = dc_bpc;
- /*
- * Deep color support mandates RGB444 support for all video
- * modes and forbids YCRCB422 support for all video modes per
- * HDMI 1.3 spec.
- */
- info->color_formats = DRM_COLOR_FORMAT_RGB444;
-
/* YCRCB444 is optional according to spec. */
if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
- info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
connector->name);
}
@@ -3886,6 +3878,7 @@ static void drm_add_display_info(struct drm_connector *connector,
if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
return;
+ info->color_formats |= DRM_COLOR_FORMAT_RGB444;
drm_parse_cea_ext(connector, edid);
/*
@@ -3934,7 +3927,6 @@ static void drm_add_display_info(struct drm_connector *connector,
DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
connector->name, info->bpc);
- info->color_formats |= DRM_COLOR_FORMAT_RGB444;
if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index d796ada2a47a..924a11232b84 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -83,8 +83,10 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
ret = of_get_drm_display_mode(np, &imxpd->mode,
&imxpd->bus_flags,
OF_USE_NATIVE_MODE);
- if (ret)
+ if (ret) {
+ drm_mode_destroy(connector->dev, mode);
return ret;
+ }
drm_mode_copy(mode, &imxpd->mode);
mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
index 83bf997dda03..e14bfbdbaf2b 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
@@ -192,7 +192,10 @@ static void mdp5_plane_reset(struct drm_plane *plane)
drm_framebuffer_unreference(plane->state->fb);
kfree(to_mdp5_plane_state(plane->state));
+ plane->state = NULL;
mdp5_state = kzalloc(sizeof(*mdp5_state), GFP_KERNEL);
+ if (!mdp5_state)
+ return;
/* assign default blend parameters */
mdp5_state->alpha = 255;
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 3dea1216bafd..dfd9e0b9582d 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -1475,8 +1475,10 @@ static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi)
dsi->slave = platform_get_drvdata(gangster);
of_node_put(np);
- if (!dsi->slave)
+ if (!dsi->slave) {
+ put_device(&gangster->dev);
return -EPROBE_DEFER;
+ }
dsi->slave->master = dsi;
}
diff --git a/drivers/gpu/ipu-v3/ipu-di.c b/drivers/gpu/ipu-v3/ipu-di.c
index a8d87ddd8a17..dc0511b22600 100644
--- a/drivers/gpu/ipu-v3/ipu-di.c
+++ b/drivers/gpu/ipu-v3/ipu-di.c
@@ -460,8 +460,9 @@ static void ipu_di_config_clock(struct ipu_di *di,
error = rate / (sig->mode.pixelclock / 1000);
- dev_dbg(di->ipu->dev, " IPU clock can give %lu with divider %u, error %d.%u%%\n",
- rate, div, (signed)(error - 1000) / 10, error % 10);
+ dev_dbg(di->ipu->dev, " IPU clock can give %lu with divider %u, error %c%d.%d%%\n",
+ rate, div, error < 1000 ? '-' : '+',
+ abs(error - 1000) / 10, abs(error - 1000) % 10);
/* Allow a 1% error */
if (error < 1010 && error >= 990) {
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 3cafa1d28fed..07dea71d41fc 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -833,7 +833,9 @@ static const char *keys[KEY_MAX + 1] = {
[KEY_F22] = "F22", [KEY_F23] = "F23",
[KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD",
[KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3",
- [KEY_PROG4] = "Prog4", [KEY_SUSPEND] = "Suspend",
+ [KEY_PROG4] = "Prog4",
+ [KEY_ALL_APPLICATIONS] = "AllApplications",
+ [KEY_SUSPEND] = "Suspend",
[KEY_CLOSE] = "Close", [KEY_PLAY] = "Play",
[KEY_FASTFORWARD] = "FastForward", [KEY_BASSBOOST] = "BassBoost",
[KEY_PRINT] = "Print", [KEY_HP] = "HP",
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 5e1a51ba6500..1dccc072da4a 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -937,6 +937,8 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
case 0x28c: map_key_clear(KEY_SEND); break;
+ case 0x2a2: map_key_clear(KEY_ALL_APPLICATIONS); break;
+
case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 518ccf15188e..26c7701fb188 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -643,6 +643,17 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
if (report_type == HID_OUTPUT_REPORT)
return -EINVAL;
+ /*
+ * In case of unnumbered reports the response from the device will
+ * not have the report ID that the upper layers expect, so we need
+ * to stash it the buffer ourselves and adjust the data size.
+ */
+ if (!report_number) {
+ buf[0] = 0;
+ buf++;
+ count--;
+ }
+
/* +2 bytes to include the size of the reply in the query buffer */
ask_count = min(count + 2, (size_t)ihid->bufsize);
@@ -664,6 +675,9 @@ static int i2c_hid_get_raw_report(struct hid_device *hid,
count = min(count, ret_count - 2);
memcpy(buf, ihid->rawbuf + 2, count);
+ if (!report_number)
+ count++;
+
return count;
}
@@ -680,17 +694,19 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
mutex_lock(&ihid->reset_lock);
- if (report_id) {
- buf++;
- count--;
- }
-
+ /*
+ * Note that both numbered and unnumbered reports passed here
+ * are supposed to have report ID stored in the 1st byte of the
+ * buffer, so we strip it off unconditionally before passing payload
+ * to i2c_hid_set_or_send_report which takes care of encoding
+ * everything properly.
+ */
ret = i2c_hid_set_or_send_report(client,
report_type == HID_FEATURE_REPORT ? 0x03 : 0x02,
- report_id, buf, count, use_data);
+ report_id, buf + 1, count - 1, use_data);
- if (report_id && ret >= 0)
- ret++; /* add report_id to the number of transfered bytes */
+ if (ret >= 0)
+ ret++; /* add report_id to the number of transferred bytes */
mutex_unlock(&ihid->reset_lock);
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
index bfcb13bae34b..8b6acb7497e2 100644
--- a/drivers/hwmon/pmbus/pmbus.h
+++ b/drivers/hwmon/pmbus/pmbus.h
@@ -262,6 +262,7 @@ enum pmbus_regs {
/*
* STATUS_VOUT, STATUS_INPUT
*/
+#define PB_VOLTAGE_VIN_OFF BIT(3)
#define PB_VOLTAGE_UV_FAULT BIT(4)
#define PB_VOLTAGE_UV_WARNING BIT(5)
#define PB_VOLTAGE_OV_WARNING BIT(6)
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 0d75bc7b5065..a662702632a8 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -1133,7 +1133,7 @@ static const struct pmbus_limit_attr vin_limit_attrs[] = {
.reg = PMBUS_VIN_UV_FAULT_LIMIT,
.attr = "lcrit",
.alarm = "lcrit_alarm",
- .sbit = PB_VOLTAGE_UV_FAULT,
+ .sbit = PB_VOLTAGE_UV_FAULT | PB_VOLTAGE_VIN_OFF,
}, {
.reg = PMBUS_VIN_OV_WARN_LIMIT,
.attr = "max",
@@ -1818,10 +1818,14 @@ static int pmbus_regulator_is_enabled(struct regulator_dev *rdev)
{
struct device *dev = rdev_get_dev(rdev);
struct i2c_client *client = to_i2c_client(dev->parent);
+ struct pmbus_data *data = i2c_get_clientdata(client);
u8 page = rdev_get_id(rdev);
int ret;
+ mutex_lock(&data->update_lock);
ret = pmbus_read_byte_data(client, page, PMBUS_OPERATION);
+ mutex_unlock(&data->update_lock);
+
if (ret < 0)
return ret;
@@ -1832,11 +1836,17 @@ static int _pmbus_regulator_on_off(struct regulator_dev *rdev, bool enable)
{
struct device *dev = rdev_get_dev(rdev);
struct i2c_client *client = to_i2c_client(dev->parent);
+ struct pmbus_data *data = i2c_get_clientdata(client);
u8 page = rdev_get_id(rdev);
+ int ret;
- return pmbus_update_byte_data(client, page, PMBUS_OPERATION,
- PB_OPERATION_CONTROL_ON,
- enable ? PB_OPERATION_CONTROL_ON : 0);
+ mutex_lock(&data->update_lock);
+ ret = pmbus_update_byte_data(client, page, PMBUS_OPERATION,
+ PB_OPERATION_CONTROL_ON,
+ enable ? PB_OPERATION_CONTROL_ON : 0);
+ mutex_unlock(&data->update_lock);
+
+ return ret;
}
static int pmbus_regulator_enable(struct regulator_dev *rdev)
diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c
index 68c350c704fb..5fd9b6769d42 100644
--- a/drivers/hwmon/sch56xx-common.c
+++ b/drivers/hwmon/sch56xx-common.c
@@ -438,7 +438,7 @@ struct sch56xx_watchdog_data *sch56xx_watchdog_register(struct device *parent,
if (nowayout)
set_bit(WDOG_NO_WAY_OUT, &data->wddev.status);
if (output_enable & SCH56XX_WDOG_OUTPUT_ENABLE)
- set_bit(WDOG_ACTIVE, &data->wddev.status);
+ set_bit(WDOG_HW_RUNNING, &data->wddev.status);
/* Since the watchdog uses a downcounter there is no register to read
the BIOS set timeout from (if any was set at all) ->
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c
index 00904c6b5b5e..1bf107af8ce0 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c
@@ -379,8 +379,12 @@ static ssize_t mode_store(struct device *dev,
mode = ETM_MODE_QELEM(config->mode);
/* start by clearing QE bits */
config->cfg &= ~(BIT(13) | BIT(14));
- /* if supported, Q elements with instruction counts are enabled */
- if ((mode & BIT(0)) && (drvdata->q_support & BIT(0)))
+ /*
+ * if supported, Q elements with instruction counts are enabled.
+ * Always set the low bit for any requested mode. Valid combos are
+ * 0b00, 0b01 and 0b11.
+ */
+ if (mode && drvdata->q_support)
config->cfg |= BIT(13);
/*
* if supported, Q elements with and without instruction
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 759c621a860a..be4b7b1ad39b 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -783,7 +783,7 @@ config I2C_PXA_SLAVE
config I2C_QUP
tristate "Qualcomm QUP based I2C controller"
- depends on ARCH_QCOM
+ depends on ARCH_QCOM || COMPILE_TEST
help
If you say yes to this option, support will be included for the
built-in I2C interface on the Qualcomm SoCs.
diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c
index 7ed09865cb4b..4729c14b7501 100644
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -28,6 +28,11 @@
#define BCM2835_I2C_FIFO 0x10
#define BCM2835_I2C_DIV 0x14
#define BCM2835_I2C_DEL 0x18
+/*
+ * 16-bit field for the number of SCL cycles to wait after rising SCL
+ * before deciding the slave is not responding. 0 disables the
+ * timeout detection.
+ */
#define BCM2835_I2C_CLKT 0x1c
#define BCM2835_I2C_C_READ BIT(0)
@@ -313,6 +318,12 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
adap->dev.of_node = pdev->dev.of_node;
adap->quirks = &bcm2835_i2c_quirks;
+ /*
+ * Disable the hardware clock stretching timeout. SMBUS
+ * specifies a limit for how long the device can stretch the
+ * clock, but core I2C doesn't.
+ */
+ bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_CLKT, 0);
bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0);
ret = i2c_add_adapter(adap);
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index df1dbc92a024..25c877654c32 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -145,6 +145,12 @@ static int pasemi_i2c_xfer_msg(struct i2c_adapter *adapter,
TXFIFO_WR(smbus, msg->buf[msg->len-1] |
(stop ? MTXFIFO_STOP : 0));
+
+ if (stop) {
+ err = pasemi_smb_waitready(smbus);
+ if (err)
+ goto reset_out;
+ }
}
return 0;
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index b72cf2f8da5c..c65a5d0af555 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -727,7 +727,6 @@ static const struct i2c_algorithm xiic_algorithm = {
static struct i2c_adapter xiic_adapter = {
.owner = THIS_MODULE,
- .name = DRIVER_NAME,
.class = I2C_CLASS_DEPRECATED,
.algo = &xiic_algorithm,
};
@@ -763,6 +762,8 @@ static int xiic_i2c_probe(struct platform_device *pdev)
i2c_set_adapdata(&i2c->adap, i2c);
i2c->adap.dev.parent = &pdev->dev;
i2c->adap.dev.of_node = pdev->dev.of_node;
+ snprintf(i2c->adap.name, sizeof(i2c->adap.name),
+ DRIVER_NAME " %s", pdev->name);
mutex_init(&i2c->lock);
init_waitqueue_head(&i2c->wait);
diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c b/drivers/i2c/muxes/i2c-demux-pinctrl.c
index a86c511c29e0..c347860b3690 100644
--- a/drivers/i2c/muxes/i2c-demux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-demux-pinctrl.c
@@ -259,7 +259,7 @@ static int i2c_demux_pinctrl_probe(struct platform_device *pdev)
err = device_create_file(&pdev->dev, &dev_attr_available_masters);
if (err)
- goto err_rollback;
+ goto err_rollback_activation;
err = device_create_file(&pdev->dev, &dev_attr_current_master);
if (err)
@@ -269,8 +269,9 @@ static int i2c_demux_pinctrl_probe(struct platform_device *pdev)
err_rollback_available:
device_remove_file(&pdev->dev, &dev_attr_available_masters);
-err_rollback:
+err_rollback_activation:
i2c_demux_deactivate_master(priv);
+err_rollback:
for (j = 0; j < i; j++) {
of_node_put(priv->chan[j].parent_np);
of_changeset_destroy(&priv->chan[j].chgset);
diff --git a/drivers/iio/adc/men_z188_adc.c b/drivers/iio/adc/men_z188_adc.c
index 8f3606de4eaf..47be2cd2c60d 100644
--- a/drivers/iio/adc/men_z188_adc.c
+++ b/drivers/iio/adc/men_z188_adc.c
@@ -107,6 +107,7 @@ static int men_z188_probe(struct mcb_device *dev,
struct z188_adc *adc;
struct iio_dev *indio_dev;
struct resource *mem;
+ int ret;
indio_dev = devm_iio_device_alloc(&dev->dev, sizeof(struct z188_adc));
if (!indio_dev)
@@ -133,8 +134,14 @@ static int men_z188_probe(struct mcb_device *dev,
adc->mem = mem;
mcb_set_drvdata(dev, indio_dev);
- return iio_device_register(indio_dev);
+ ret = iio_device_register(indio_dev);
+ if (ret)
+ goto err_unmap;
+
+ return 0;
+err_unmap:
+ iounmap(adc->base);
err:
mcb_release_mem(mem);
return -ENXIO;
diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index becbb0aef232..5075f594d97f 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -927,6 +927,8 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
ret = devm_request_threaded_irq(dev, irq, NULL,
twl6030_gpadc_irq_handler,
IRQF_ONESHOT, "twl6030_gpadc", indio_dev);
+ if (ret)
+ return ret;
ret = twl6030_gpadc_enable_irq(TWL6030_GPADC_RT_SW1_EOC_MASK);
if (ret < 0) {
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index c4757e6367e7..218cf4567ab5 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -591,13 +591,35 @@ EXPORT_SYMBOL_GPL(iio_read_channel_average_raw);
static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
int raw, int *processed, unsigned int scale)
{
- int scale_type, scale_val, scale_val2, offset;
+ int scale_type, scale_val, scale_val2;
+ int offset_type, offset_val, offset_val2;
s64 raw64 = raw;
- int ret;
- ret = iio_channel_read(chan, &offset, NULL, IIO_CHAN_INFO_OFFSET);
- if (ret >= 0)
- raw64 += offset;
+ offset_type = iio_channel_read(chan, &offset_val, &offset_val2,
+ IIO_CHAN_INFO_OFFSET);
+ if (offset_type >= 0) {
+ switch (offset_type) {
+ case IIO_VAL_INT:
+ break;
+ case IIO_VAL_INT_PLUS_MICRO:
+ case IIO_VAL_INT_PLUS_NANO:
+ /*
+ * Both IIO_VAL_INT_PLUS_MICRO and IIO_VAL_INT_PLUS_NANO
+ * implicitely truncate the offset to it's integer form.
+ */
+ break;
+ case IIO_VAL_FRACTIONAL:
+ offset_val /= offset_val2;
+ break;
+ case IIO_VAL_FRACTIONAL_LOG2:
+ offset_val >>= offset_val2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ raw64 += offset_val;
+ }
scale_type = iio_channel_read(chan, &scale_val, &scale_val2,
IIO_CHAN_INFO_SCALE);
@@ -606,7 +628,7 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
switch (scale_type) {
case IIO_VAL_INT:
- *processed = raw64 * scale_val;
+ *processed = raw64 * scale_val * scale;
break;
case IIO_VAL_INT_PLUS_MICRO:
if (scale_val2 < 0)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index af68be201c29..67b993f4ec91 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -3646,9 +3646,11 @@ static void srp_remove_one(struct ib_device *device, void *client_data)
spin_unlock(&host->target_lock);
/*
- * Wait for tl_err and target port removal tasks.
+ * srp_queue_remove_work() queues a call to
+ * srp_remove_target(). The latter function cancels
+ * target->tl_err_work so waiting for the remove works to
+ * finish is sufficient.
*/
- flush_workqueue(system_long_wq);
flush_workqueue(srp_remove_wq);
kfree(host);
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 16f5d5660053..44015e6bd6a0 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -132,55 +132,21 @@ static int elan_get_fwinfo(u8 iap_version, u16 *validpage_count,
return 0;
}
-static int elan_enable_power(struct elan_tp_data *data)
+static int elan_set_power(struct elan_tp_data *data, bool on)
{
int repeat = ETP_RETRY_COUNT;
int error;
- error = regulator_enable(data->vcc);
- if (error) {
- dev_err(&data->client->dev,
- "failed to enable regulator: %d\n", error);
- return error;
- }
-
do {
- error = data->ops->power_control(data->client, true);
+ error = data->ops->power_control(data->client, on);
if (error >= 0)
return 0;
msleep(30);
} while (--repeat > 0);
- dev_err(&data->client->dev, "failed to enable power: %d\n", error);
- return error;
-}
-
-static int elan_disable_power(struct elan_tp_data *data)
-{
- int repeat = ETP_RETRY_COUNT;
- int error;
-
- do {
- error = data->ops->power_control(data->client, false);
- if (!error) {
- error = regulator_disable(data->vcc);
- if (error) {
- dev_err(&data->client->dev,
- "failed to disable regulator: %d\n",
- error);
- /* Attempt to power the chip back up */
- data->ops->power_control(data->client, true);
- break;
- }
-
- return 0;
- }
-
- msleep(30);
- } while (--repeat > 0);
-
- dev_err(&data->client->dev, "failed to disable power: %d\n", error);
+ dev_err(&data->client->dev, "failed to set power %s: %d\n",
+ on ? "on" : "off", error);
return error;
}
@@ -1195,9 +1161,19 @@ static int __maybe_unused elan_suspend(struct device *dev)
/* Enable wake from IRQ */
data->irq_wake = (enable_irq_wake(client->irq) == 0);
} else {
- ret = elan_disable_power(data);
+ ret = elan_set_power(data, false);
+ if (ret)
+ goto err;
+
+ ret = regulator_disable(data->vcc);
+ if (ret) {
+ dev_err(dev, "error %d disabling regulator\n", ret);
+ /* Attempt to power the chip back up */
+ elan_set_power(data, true);
+ }
}
+err:
mutex_unlock(&data->sysfs_mutex);
return ret;
}
@@ -1208,12 +1184,18 @@ static int __maybe_unused elan_resume(struct device *dev)
struct elan_tp_data *data = i2c_get_clientdata(client);
int error;
- if (device_may_wakeup(dev) && data->irq_wake) {
+ if (!device_may_wakeup(dev)) {
+ error = regulator_enable(data->vcc);
+ if (error) {
+ dev_err(dev, "error %d enabling regulator\n", error);
+ goto err;
+ }
+ } else if (data->irq_wake) {
disable_irq_wake(client->irq);
data->irq_wake = false;
}
- error = elan_enable_power(data);
+ error = elan_set_power(data, true);
if (error) {
dev_err(dev, "power up when resuming failed: %d\n", error);
goto err;
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index 5a7e5e073e52..58c0705470be 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1821,15 +1821,13 @@ aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
- /* Verify that a device really has an endpoint */
- if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
+ err = usb_find_common_endpoints(intf->cur_altsetting,
+ NULL, NULL, &endpoint, NULL);
+ if (err) {
dev_err(&intf->dev,
- "interface has %d endpoints, but must have minimum 1\n",
- intf->cur_altsetting->desc.bNumEndpoints);
- err = -EINVAL;
+ "interface has no int in endpoints, but must have minimum 1\n");
goto fail3;
}
- endpoint = &intf->cur_altsetting->endpoint[0].desc;
/* Go set up our URB, which is called when the tablet receives
* input.
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 48d382008788..db40ce599e97 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1171,6 +1171,7 @@ static irqreturn_t arm_smmu_evtq_thread(int irq, void *dev)
dev_info(smmu->dev, "\t0x%016llx\n",
(unsigned long long)evt[i]);
+ cond_resched();
}
/*
diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c
index 9694529b709d..330beb62d015 100644
--- a/drivers/irqchip/irq-nvic.c
+++ b/drivers/irqchip/irq-nvic.c
@@ -108,6 +108,7 @@ static int __init nvic_of_init(struct device_node *node,
if (!nvic_irq_domain) {
pr_warn("Failed to allocate irq domain\n");
+ iounmap(nvic_base);
return -ENOMEM;
}
@@ -117,6 +118,7 @@ static int __init nvic_of_init(struct device_node *node,
if (ret) {
pr_warn("Failed to allocate irq chips\n");
irq_domain_remove(nvic_irq_domain);
+ iounmap(nvic_base);
return ret;
}
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index eb2659a12310..70245782e7f6 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -16,6 +16,7 @@
#include <linux/dm-ioctl.h>
#include <linux/hdreg.h>
#include <linux/compat.h>
+#include <linux/nospec.h>
#include <asm/uaccess.h>
@@ -1642,6 +1643,7 @@ static ioctl_fn lookup_ioctl(unsigned int cmd, int *ioctl_flags)
if (unlikely(cmd >= ARRAY_SIZE(_ioctls)))
return NULL;
+ cmd = array_index_nospec(cmd, ARRAY_SIZE(_ioctls));
*ioctl_flags = _ioctls[cmd].flags;
return _ioctls[cmd].fn;
}
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 245357adbc25..37d4512f3eb8 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -175,6 +175,9 @@ int cx8802_start_dma(struct cx8802_dev *dev,
cx_write(MO_TS_GPCNTRL, GP_COUNT_CONTROL_RESET);
q->count = 0;
+ /* clear interrupt status register */
+ cx_write(MO_TS_INTSTAT, 0x1f1111);
+
/* enable irqs */
dprintk( 1, "setting the interrupt mask\n" );
cx_set(MO_PCI_INTMSK, core->pci_irqmask | PCI_INT_TSINT);
diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
index 0380cf2e5775..736719d6d648 100644
--- a/drivers/media/platform/davinci/vpif.c
+++ b/drivers/media/platform/davinci/vpif.c
@@ -437,6 +437,7 @@ static int vpif_probe(struct platform_device *pdev)
static int vpif_remove(struct platform_device *pdev)
{
+ pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
return 0;
}
diff --git a/drivers/media/usb/go7007/s2250-board.c b/drivers/media/usb/go7007/s2250-board.c
index 1466db150d82..625e77f4dbd2 100644
--- a/drivers/media/usb/go7007/s2250-board.c
+++ b/drivers/media/usb/go7007/s2250-board.c
@@ -512,6 +512,7 @@ static int s2250_probe(struct i2c_client *client,
u8 *data;
struct go7007 *go = i2c_get_adapdata(adapter);
struct go7007_usb *usb = go->hpi_context;
+ int err = -EIO;
audio = i2c_new_dummy(adapter, TLV320_ADDRESS >> 1);
if (audio == NULL)
@@ -540,11 +541,8 @@ static int s2250_probe(struct i2c_client *client,
V4L2_CID_HUE, -512, 511, 1, 0);
sd->ctrl_handler = &state->hdl;
if (state->hdl.error) {
- int err = state->hdl.error;
-
- v4l2_ctrl_handler_free(&state->hdl);
- kfree(state);
- return err;
+ err = state->hdl.error;
+ goto fail;
}
state->std = V4L2_STD_NTSC;
@@ -608,7 +606,7 @@ static int s2250_probe(struct i2c_client *client,
i2c_unregister_device(audio);
v4l2_ctrl_handler_free(&state->hdl);
kfree(state);
- return -EIO;
+ return err;
}
static int s2250_remove(struct i2c_client *client)
diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c
index 474c11e1d495..cfd8c09f9ded 100644
--- a/drivers/media/usb/hdpvr/hdpvr-video.c
+++ b/drivers/media/usb/hdpvr/hdpvr-video.c
@@ -312,7 +312,6 @@ static int hdpvr_start_streaming(struct hdpvr_device *dev)
dev->status = STATUS_STREAMING;
- INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
schedule_work(&dev->worker);
v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
@@ -1156,6 +1155,9 @@ int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
bool ac3 = dev->flags & HDPVR_FLAG_AC3_CAP;
int res;
+ // initialize dev->worker
+ INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
+
dev->cur_std = V4L2_STD_525_60;
dev->width = 720;
dev->height = 480;
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 88c32b8dc88a..9f293b931144 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -1425,7 +1425,7 @@ static struct emif_data *__init_or_module get_device_details(
temp = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
dev_info = devm_kzalloc(dev, sizeof(*dev_info), GFP_KERNEL);
- if (!emif || !pd || !dev_info) {
+ if (!emif || !temp || !dev_info) {
dev_err(dev, "%s:%d: allocation error\n", __func__, __LINE__);
goto error;
}
@@ -1517,7 +1517,7 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
{
struct emif_data *emif;
struct resource *res;
- int irq;
+ int irq, ret;
if (pdev->dev.of_node)
emif = of_get_memory_device_details(pdev->dev.of_node, &pdev->dev);
@@ -1551,7 +1551,9 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
emif_onetime_settings(emif);
emif_debugfs_init(emif);
disable_and_clear_all_interrupts(emif);
- setup_interrupts(emif, irq);
+ ret = setup_interrupts(emif, irq);
+ if (ret)
+ goto error;
/* One-time actions taken on probing the first device */
if (!emif1) {
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 0413c8159551..34270e237726 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -915,14 +915,14 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
ret = mfd_add_devices(&pdev->dev, pdev->id,
&asic3_cell_ds1wm, 1, mem, asic->irq_base, NULL);
if (ret < 0)
- goto out;
+ goto out_unmap;
}
if (mem_sdio && (irq >= 0)) {
ret = mfd_add_devices(&pdev->dev, pdev->id,
&asic3_cell_mmc, 1, mem_sdio, irq, NULL);
if (ret < 0)
- goto out;
+ goto out_unmap;
}
ret = 0;
@@ -936,8 +936,12 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
ret = mfd_add_devices(&pdev->dev, 0,
asic3_cell_leds, ASIC3_NUM_LEDS, NULL, 0, NULL);
}
+ return ret;
- out:
+out_unmap:
+ if (asic->tmio_cnf)
+ iounmap(asic->tmio_cnf);
+out:
return ret;
}
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 75d52034f89d..5b4faebdcae2 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -313,8 +313,10 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
adc1 |= MC13783_ADC1_ATOX;
dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__);
- mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
+ ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
mc13xxx_handler_adcdone, __func__, &adcdone_data);
+ if (ret)
+ goto out;
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1);
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index ab2184003c29..d75686c1c6e8 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -1066,10 +1066,10 @@ static int kgdbts_option_setup(char *opt)
{
if (strlen(opt) >= MAX_CONFIG_LEN) {
printk(KERN_ERR "kgdbts: config string too long\n");
- return -ENOSPC;
+ return 1;
}
strcpy(config, opt);
- return 0;
+ return 1;
}
__setup("kgdbts=", kgdbts_option_setup);
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 848b3453517e..60c2ca58dec3 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -403,6 +403,16 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
EXPORT_SYMBOL(mmc_alloc_host);
+static int mmc_validate_host_caps(struct mmc_host *host)
+{
+ if (host->caps & MMC_CAP_SDIO_IRQ && !host->ops->enable_sdio_irq) {
+ dev_warn(host->parent, "missing ->enable_sdio_irq() ops\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/**
* mmc_add_host - initialise host hardware
* @host: mmc host
@@ -415,8 +425,9 @@ int mmc_add_host(struct mmc_host *host)
{
int err;
- WARN_ON((host->caps & MMC_CAP_SDIO_IRQ) &&
- !host->ops->enable_sdio_irq);
+ err = mmc_validate_host_caps(host);
+ if (err)
+ return err;
err = device_add(&host->class_dev);
if (err)
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index 40fdc9d267b9..1c8e95cf29d2 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1637,7 +1637,7 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip,
mtd->oobsize / trans,
host->hwcfg.sector_size_1k);
- if (!ret) {
+ if (ret != -EBADMSG) {
*err_addr = brcmnand_read_reg(ctrl,
BRCMNAND_UNCORR_ADDR) |
((u64)(brcmnand_read_reg(ctrl,
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 125da34d8ff9..23a878e7974e 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -58,7 +58,12 @@ static int generic_onenand_probe(struct platform_device *pdev)
}
info->onenand.mmcontrol = pdata ? pdata->mmcontrol : NULL;
- info->onenand.irq = platform_get_irq(pdev, 0);
+
+ err = platform_get_irq(pdev, 0);
+ if (err < 0)
+ goto out_iounmap;
+
+ info->onenand.irq = err;
info->mtd.dev.parent = &pdev->dev;
info->mtd.priv = &info->onenand;
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index e7b177c61642..1486f9af8f1e 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -478,7 +478,9 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
if (err == UBI_IO_FF_BITFLIPS)
scrub = 1;
- add_aeb(ai, free, pnum, ec, scrub);
+ ret = add_aeb(ai, free, pnum, ec, scrub);
+ if (ret)
+ goto out;
continue;
} else if (err == 0 || err == UBI_IO_BITFLIPS) {
dbg_bld("Found non empty PEB:%i in pool", pnum);
@@ -648,8 +650,10 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
if (fm_pos >= fm_size)
goto fail_bad;
- add_aeb(ai, &ai->free, be32_to_cpu(fmec->pnum),
- be32_to_cpu(fmec->ec), 0);
+ ret = add_aeb(ai, &ai->free, be32_to_cpu(fmec->pnum),
+ be32_to_cpu(fmec->ec), 0);
+ if (ret)
+ goto fail;
}
/* read EC values from used list */
@@ -659,8 +663,10 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
if (fm_pos >= fm_size)
goto fail_bad;
- add_aeb(ai, &used, be32_to_cpu(fmec->pnum),
- be32_to_cpu(fmec->ec), 0);
+ ret = add_aeb(ai, &used, be32_to_cpu(fmec->pnum),
+ be32_to_cpu(fmec->ec), 0);
+ if (ret)
+ goto fail;
}
/* read EC values from scrub list */
@@ -670,8 +676,10 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
if (fm_pos >= fm_size)
goto fail_bad;
- add_aeb(ai, &used, be32_to_cpu(fmec->pnum),
- be32_to_cpu(fmec->ec), 1);
+ ret = add_aeb(ai, &used, be32_to_cpu(fmec->pnum),
+ be32_to_cpu(fmec->ec), 1);
+ if (ret)
+ goto fail;
}
/* read EC values from erase list */
@@ -681,8 +689,10 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
if (fm_pos >= fm_size)
goto fail_bad;
- add_aeb(ai, &ai->erase, be32_to_cpu(fmec->pnum),
- be32_to_cpu(fmec->ec), 1);
+ ret = add_aeb(ai, &ai->erase, be32_to_cpu(fmec->pnum),
+ be32_to_cpu(fmec->ec), 1);
+ if (ret)
+ goto fail;
}
ai->mean_ec = div_u64(ai->ec_sum, ai->ec_count);
diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c
index 239de38fbd6a..1c9fff038569 100644
--- a/drivers/net/arcnet/com20020-pci.c
+++ b/drivers/net/arcnet/com20020-pci.c
@@ -115,6 +115,9 @@ static int com20020pci_probe(struct pci_dev *pdev,
return -ENOMEM;
ci = (struct com20020_pci_card_info *)id->driver_data;
+ if (!ci)
+ return -EINVAL;
+
priv->ci = ci;
mm = &ci->misc_map;
diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index 43cdd5544b0c..a127c853a4e9 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1601,15 +1601,15 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch,
netif_napi_add(ndev, &priv->napi, rcar_canfd_rx_poll,
RCANFD_NAPI_WEIGHT);
+ spin_lock_init(&priv->tx_lock);
+ devm_can_led_init(ndev);
+ gpriv->ch[priv->channel] = priv;
err = register_candev(ndev);
if (err) {
dev_err(&pdev->dev,
"register_candev() failed, error %d\n", err);
goto fail_candev;
}
- spin_lock_init(&priv->tx_lock);
- devm_can_led_init(ndev);
- gpriv->ch[priv->channel] = priv;
dev_info(&pdev->dev, "device registered (channel %u)\n", priv->channel);
return 0;
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index d62d61d734ea..4d01b6cbf0eb 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -834,7 +834,6 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
usb_unanchor_urb(urb);
usb_free_coherent(dev->udev, size, buf, urb->transfer_dma);
- dev_kfree_skb(skb);
atomic_dec(&dev->active_tx_urbs);
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 75399aa1ba95..6771c51f72c3 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -198,8 +198,8 @@ struct gs_can {
struct gs_usb {
struct gs_can *canch[GS_MAX_INTF];
struct usb_anchor rx_submitted;
- atomic_t active_channels;
struct usb_device *udev;
+ u8 active_channels;
};
/* 'allocate' a tx context.
@@ -597,7 +597,7 @@ static int gs_can_open(struct net_device *netdev)
if (rc)
return rc;
- if (atomic_add_return(1, &parent->active_channels) == 1) {
+ if (!parent->active_channels) {
for (i = 0; i < GS_MAX_RX_URBS; i++) {
struct urb *urb;
u8 *buf;
@@ -698,6 +698,7 @@ static int gs_can_open(struct net_device *netdev)
dev->can.state = CAN_STATE_ERROR_ACTIVE;
+ parent->active_channels++;
if (!(dev->can.ctrlmode & CAN_CTRLMODE_LISTENONLY))
netif_start_queue(netdev);
@@ -713,7 +714,8 @@ static int gs_can_close(struct net_device *netdev)
netif_stop_queue(netdev);
/* Stop polling */
- if (atomic_dec_and_test(&parent->active_channels))
+ parent->active_channels--;
+ if (!parent->active_channels)
usb_kill_anchored_urbs(&parent->rx_submitted);
/* Stop sending URBs */
@@ -992,8 +994,6 @@ static int gs_usb_probe(struct usb_interface *intf,
init_usb_anchor(&dev->rx_submitted);
- atomic_set(&dev->active_channels, 0);
-
usb_set_intfdata(intf, dev);
dev->udev = interface_to_usbdev(intf);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 9e5251c427a3..401d9718841f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1008,9 +1008,7 @@ static int bnxt_set_pauseparam(struct net_device *dev,
}
link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
- if (bp->hwrm_spec_code >= 0x10201)
- link_info->req_flow_ctrl =
- PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE;
+ link_info->req_flow_ctrl = 0;
} else {
/* when transition from auto pause to force pause,
* force a link change
diff --git a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
index a89721fad633..29220141e4e4 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
@@ -3677,6 +3677,8 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
MAC_STATS_ACCUM_SECS : (MAC_STATS_ACCUM_SECS * 10);
adapter->params.pci.vpd_cap_addr =
pci_find_capability(adapter->pdev, PCI_CAP_ID_VPD);
+ if (!adapter->params.pci.vpd_cap_addr)
+ return -ENODEV;
ret = get_vpd_params(adapter, &adapter->params.vpd);
if (ret < 0)
return ret;
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 500016209ae0..3ed40bde796b 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -1010,8 +1010,8 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
{
u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) |
link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND;
- u16 max_ltr_enc_d = 0; /* maximum LTR decoded by platform */
- u16 lat_enc_d = 0; /* latency decoded */
+ u32 max_ltr_enc_d = 0; /* maximum LTR decoded by platform */
+ u32 lat_enc_d = 0; /* latency decoded */
u16 lat_enc = 0; /* latency encoded */
if (link) {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index e13a6cd5163f..5f23e26b0415 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1405,7 +1405,7 @@ static int mlx5e_get_module_eeprom(struct net_device *netdev,
if (size_read < 0) {
netdev_err(priv->netdev, "%s: mlx5_query_eeprom failed:0x%x\n",
__func__, size_read);
- return 0;
+ return size_read;
}
i += size_read;
diff --git a/drivers/net/ethernet/micrel/Kconfig b/drivers/net/ethernet/micrel/Kconfig
index b7e2f49696b7..aa12bace8673 100644
--- a/drivers/net/ethernet/micrel/Kconfig
+++ b/drivers/net/ethernet/micrel/Kconfig
@@ -45,6 +45,7 @@ config KS8851
config KS8851_MLL
tristate "Micrel KS8851 MLL"
depends on HAS_IOMEM
+ depends on PTP_1588_CLOCK_OPTIONAL
select MII
---help---
This platform driver is for Micrel KS8851 Address/data bus
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index ad7b9772a4b2..78f34e87212a 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1515,6 +1515,7 @@ static int lpc_eth_drv_resume(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct netdata_local *pldat;
+ int ret;
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(ndev->irq);
@@ -1524,7 +1525,9 @@ static int lpc_eth_drv_resume(struct platform_device *pdev)
pldat = netdev_priv(ndev);
/* Enable interface clock */
- clk_enable(pldat->clk);
+ ret = clk_enable(pldat->clk);
+ if (ret)
+ return ret;
/* Reset and initialize */
__lpc_eth_reset(pldat);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index 6379bfedc9f0..9a7ba55b4693 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -2899,11 +2899,11 @@ int qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *p_disabled_vfs)
return found;
}
-static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
- u16 vfid,
- struct qed_mcp_link_params *p_params,
- struct qed_mcp_link_state *p_link,
- struct qed_mcp_link_capabilities *p_caps)
+static int qed_iov_get_link(struct qed_hwfn *p_hwfn,
+ u16 vfid,
+ struct qed_mcp_link_params *p_params,
+ struct qed_mcp_link_state *p_link,
+ struct qed_mcp_link_capabilities *p_caps)
{
struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
vfid,
@@ -2911,7 +2911,7 @@ static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
struct qed_bulletin_content *p_bulletin;
if (!p_vf)
- return;
+ return -EINVAL;
p_bulletin = p_vf->bulletin.p_virt;
@@ -2921,6 +2921,7 @@ static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
__qed_vf_get_link_state(p_hwfn, p_link, p_bulletin);
if (p_caps)
__qed_vf_get_link_caps(p_hwfn, p_caps, p_bulletin);
+ return 0;
}
static void qed_iov_process_mbx_req(struct qed_hwfn *p_hwfn,
@@ -3538,6 +3539,7 @@ static int qed_get_vf_config(struct qed_dev *cdev,
struct qed_public_vf_info *vf_info;
struct qed_mcp_link_state link;
u32 tx_rate;
+ int ret;
/* Sanitize request */
if (IS_VF(cdev))
@@ -3551,7 +3553,9 @@ static int qed_get_vf_config(struct qed_dev *cdev,
vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true);
- qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL);
+ ret = qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL);
+ if (ret)
+ return ret;
/* Fill information about VF */
ivi->vf = vf_id;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index 170243d3276b..d0449d5418f7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -384,6 +384,9 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
p_iov->bulletin.size,
&p_iov->bulletin.phys,
GFP_KERNEL);
+ if (!p_iov->bulletin.p_virt)
+ goto free_pf2vf_reply;
+
DP_VERBOSE(p_hwfn, QED_MSG_IOV,
"VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n",
p_iov->bulletin.p_virt,
@@ -397,6 +400,10 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
return qed_vf_pf_acquire(p_hwfn);
+free_pf2vf_reply:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(union pfvf_tlvs),
+ p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
free_vf2pf_request:
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(union vfpf_tlvs),
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h
index f4aa6331b367..0a9d24e86715 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h
@@ -52,7 +52,7 @@ static inline int qlcnic_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
if (dcb && dcb->ops->get_hw_capability)
return dcb->ops->get_hw_capability(dcb);
- return 0;
+ return -EOPNOTSUPP;
}
static inline void qlcnic_dcb_free(struct qlcnic_dcb *dcb)
@@ -66,7 +66,7 @@ static inline int qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
if (dcb && dcb->ops->attach)
return dcb->ops->attach(dcb);
- return 0;
+ return -EOPNOTSUPP;
}
static inline int
@@ -75,7 +75,7 @@ qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
if (dcb && dcb->ops->query_hw_capability)
return dcb->ops->query_hw_capability(dcb, buf);
- return 0;
+ return -EOPNOTSUPP;
}
static inline void qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
@@ -90,7 +90,7 @@ qlcnic_dcb_query_cee_param(struct qlcnic_dcb *dcb, char *buf, u8 type)
if (dcb && dcb->ops->query_cee_param)
return dcb->ops->query_cee_param(dcb, buf, type);
- return 0;
+ return -EOPNOTSUPP;
}
static inline int qlcnic_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
@@ -98,7 +98,7 @@ static inline int qlcnic_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
if (dcb && dcb->ops->get_cee_cfg)
return dcb->ops->get_cee_cfg(dcb);
- return 0;
+ return -EOPNOTSUPP;
}
static inline void qlcnic_dcb_aen_handler(struct qlcnic_dcb *dcb, void *msg)
diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
index 11dd7c8d576d..ab1d01dd2eb3 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
@@ -2311,18 +2311,18 @@ static int __init sxgbe_cmdline_opt(char *str)
char *opt;
if (!str || !*str)
- return -EINVAL;
+ return 1;
while ((opt = strsep(&str, ",")) != NULL) {
if (!strncmp(opt, "eee_timer:", 10)) {
if (kstrtoint(opt + 10, 0, &eee_timer))
goto err;
}
}
- return 0;
+ return 1;
err:
pr_err("%s: ERROR broken module parameter conversion\n", __func__);
- return -EINVAL;
+ return 1;
}
__setup("sxgbeeth=", sxgbe_cmdline_opt);
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index 241520943ada..221798499e24 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -162,9 +162,9 @@ static void efx_mcdi_send_request(struct efx_nic *efx, unsigned cmd,
/* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */
spin_lock_bh(&mcdi->iface_lock);
++mcdi->seqno;
+ seqno = mcdi->seqno & SEQ_MASK;
spin_unlock_bh(&mcdi->iface_lock);
- seqno = mcdi->seqno & SEQ_MASK;
xflags = 0;
if (mcdi->mode == MCDI_MODE_EVENTS)
xflags |= MCDI_HEADER_XFLAGS_EVREQ;
diff --git a/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c b/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c
index 6a9c954492f2..6ca428a702f1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c
@@ -68,10 +68,6 @@
#define TSE_PCS_USE_SGMII_ENA BIT(0)
#define TSE_PCS_IF_USE_SGMII 0x03
-#define SGMII_ADAPTER_CTRL_REG 0x00
-#define SGMII_ADAPTER_DISABLE 0x0001
-#define SGMII_ADAPTER_ENABLE 0x0000
-
#define AUTONEGO_LINK_TIMER 20
static int tse_pcs_reset(void __iomem *base, struct tse_pcs *pcs)
@@ -215,12 +211,8 @@ void tse_pcs_fix_mac_speed(struct tse_pcs *pcs, struct phy_device *phy_dev,
unsigned int speed)
{
void __iomem *tse_pcs_base = pcs->tse_pcs_base;
- void __iomem *sgmii_adapter_base = pcs->sgmii_adapter_base;
u32 val;
- writew(SGMII_ADAPTER_ENABLE,
- sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
-
pcs->autoneg = phy_dev->autoneg;
if (phy_dev->autoneg == AUTONEG_ENABLE) {
diff --git a/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.h b/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.h
index 2f5882450b06..254199f2efdb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.h
+++ b/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.h
@@ -21,6 +21,10 @@
#include <linux/phy.h>
#include <linux/timer.h>
+#define SGMII_ADAPTER_CTRL_REG 0x00
+#define SGMII_ADAPTER_ENABLE 0x0000
+#define SGMII_ADAPTER_DISABLE 0x0001
+
struct tse_pcs {
struct device *dev;
void __iomem *tse_pcs_base;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index c3a78c113424..b138968b8672 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -29,9 +29,6 @@
#include "altr_tse_pcs.h"
-#define SGMII_ADAPTER_CTRL_REG 0x00
-#define SGMII_ADAPTER_DISABLE 0x0001
-
#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII 0x0
#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII 0x1
#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII 0x2
@@ -65,16 +62,14 @@ static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed)
{
struct socfpga_dwmac *dwmac = (struct socfpga_dwmac *)priv;
void __iomem *splitter_base = dwmac->splitter_base;
- void __iomem *tse_pcs_base = dwmac->pcs.tse_pcs_base;
void __iomem *sgmii_adapter_base = dwmac->pcs.sgmii_adapter_base;
struct device *dev = dwmac->dev;
struct net_device *ndev = dev_get_drvdata(dev);
struct phy_device *phy_dev = ndev->phydev;
u32 val;
- if ((tse_pcs_base) && (sgmii_adapter_base))
- writew(SGMII_ADAPTER_DISABLE,
- sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
+ writew(SGMII_ADAPTER_DISABLE,
+ sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
if (splitter_base) {
val = readl(splitter_base + EMAC_SPLITTER_CTRL_REG);
@@ -96,7 +91,9 @@ static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed)
writel(val, splitter_base + EMAC_SPLITTER_CTRL_REG);
}
- if (tse_pcs_base && sgmii_adapter_base)
+ writew(SGMII_ADAPTER_ENABLE,
+ sgmii_adapter_base + SGMII_ADAPTER_CTRL_REG);
+ if (phy_dev)
tse_pcs_fix_mac_speed(&dwmac->pcs, phy_dev, speed);
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 0a7ff854d1c3..bb44f8161ea9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3608,7 +3608,7 @@ static int __init stmmac_cmdline_opt(char *str)
char *opt;
if (!str || !*str)
- return -EINVAL;
+ return 1;
while ((opt = strsep(&str, ",")) != NULL) {
if (!strncmp(opt, "debug:", 6)) {
if (kstrtoint(opt + 6, 0, &debug))
@@ -3639,11 +3639,11 @@ static int __init stmmac_cmdline_opt(char *str)
goto err;
}
}
- return 0;
+ return 1;
err:
pr_err("%s: ERROR broken module parameter conversion", __func__);
- return -EINVAL;
+ return 1;
}
__setup("stmmaceth=", stmmac_cmdline_opt);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 2019e163e0e9..cbdd0deb7c56 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -221,8 +221,7 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
plat->interface = of_get_phy_mode(np);
/* Get max speed of operation from device tree */
- if (of_property_read_u32(np, "max-speed", &plat->max_speed))
- plat->max_speed = -1;
+ of_property_read_u32(np, "max-speed", &plat->max_speed);
plat->bus_id = of_alias_get_id(np, "ethernet");
if (plat->bus_id < 0)
diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index cf4dcff051d5..b38106a7cb5d 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -3160,7 +3160,7 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
if (err) {
printk(KERN_ERR "happymeal(PCI): Cannot register net device, "
"aborting.\n");
- goto err_out_iounmap;
+ goto err_out_free_coherent;
}
pci_set_drvdata(pdev, hp);
@@ -3193,6 +3193,10 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
return 0;
+err_out_free_coherent:
+ dma_free_coherent(hp->dma_dev, PAGE_SIZE,
+ hp->happy_block, hp->hblock_dvma);
+
err_out_iounmap:
iounmap(hp->gregs);
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index df3b3384984c..1f9a6ea356b0 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1175,7 +1175,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
if (rc) {
dev_err(dev,
"Cannot register network device, aborting\n");
- goto error;
+ goto put_node;
}
dev_info(dev,
@@ -1183,6 +1183,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
(unsigned int __force)ndev->mem_start, lp->base_addr, ndev->irq);
return 0;
+put_node:
+ of_node_put(lp->phy_node);
error:
xemaclite_remove_ndev(ndev);
return rc;
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 96fb2a2a59f0..f829233a911a 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -685,14 +685,14 @@ static void sixpack_close(struct tty_struct *tty)
*/
netif_stop_queue(sp->dev);
+ unregister_netdev(sp->dev);
+
del_timer_sync(&sp->tx_t);
del_timer_sync(&sp->resync_t);
/* Free all 6pack frame buffers. */
kfree(sp->rbuff);
kfree(sp->xbuff);
-
- unregister_netdev(sp->dev);
}
/* Perform I/O control on an active 6pack channel. */
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 8d85cedb4bf5..cbf959e7bbff 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -41,6 +41,8 @@
#define AX_MTU 236
+/* some arch define END as assembly function ending, just undef it */
+#undef END
/* SLIP/KISS protocol characters. */
#define END 0300 /* indicates end of frame */
#define ESC 0333 /* indicates byte stuffing */
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 870327efccf7..6bea2b219e00 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -15,6 +15,7 @@
*/
#include "bcm-phy-lib.h"
+#include <linux/delay.h>
#include <linux/module.h>
#include <linux/phy.h>
#include <linux/brcmphy.h>
@@ -357,6 +358,26 @@ static int brcm_fet_config_init(struct phy_device *phydev)
if (err < 0)
return err;
+ /* The datasheet indicates the PHY needs up to 1us to complete a reset,
+ * build some slack here.
+ */
+ usleep_range(1000, 2000);
+
+ /* The PHY requires 65 MDC clock cycles to complete a write operation
+ * and turnaround the line properly.
+ *
+ * We ignore -EIO here as the MDIO controller (e.g.: mdio-bcm-unimac)
+ * may flag the lack of turn-around as a read failure. This is
+ * particularly true with this combination since the MDIO controller
+ * only used 64 MDC cycles. This is not a critical failure in this
+ * specific case and it has no functional impact otherwise, so we let
+ * that one go through. If there is a genuine bus error, the next read
+ * of MII_BRCM_FET_INTREG will error out.
+ */
+ err = phy_read(phydev, MII_BMCR);
+ if (err < 0 && err != -EIO)
+ return err;
+
reg = phy_read(phydev, MII_BRCM_FET_INTREG);
if (reg < 0)
return reg;
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index f870396e05e1..ba26fa0ceba8 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -471,7 +471,7 @@ static void sl_tx_timeout(struct net_device *dev)
spin_lock(&sl->lock);
if (netif_queue_stopped(dev)) {
- if (!netif_running(dev))
+ if (!netif_running(dev) || !sl->tty)
goto out;
/* May be we must check transmitter timeout here ?
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 8f03cc52ddda..1819b104418c 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -555,6 +555,11 @@ static const struct usb_device_id products[] = {
.bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
.bInterfaceProtocol = USB_CDC_PROTO_NONE
+#define ZAURUS_FAKE_INTERFACE \
+ .bInterfaceClass = USB_CLASS_COMM, \
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE
+
/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
* wire-incompatible with true CDC Ethernet implementations.
* (And, it seems, needlessly so...)
@@ -608,6 +613,13 @@ static const struct usb_device_id products[] = {
.idProduct = 0x9032, /* SL-6000 */
ZAURUS_MASTER_INTERFACE,
.driver_info = 0,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x9032, /* SL-6000 */
+ ZAURUS_FAKE_INTERFACE,
+ .driver_info = 0,
}, {
.match_flags = USB_DEVICE_ID_MATCH_INT_INFO
| USB_DEVICE_ID_MATCH_DEVICE,
diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index d86132d41416..95256765b388 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -652,6 +652,11 @@ static const struct usb_device_id mbim_devs[] = {
.driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle,
},
+ /* Telit FN990 */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1071, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle,
+ },
+
/* default entry */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long)&cdc_mbim_info_zlp,
diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
index aadfe1d1c37e..f4c4df01874c 100644
--- a/drivers/net/usb/sr9700.c
+++ b/drivers/net/usb/sr9700.c
@@ -409,7 +409,7 @@ static int sr9700_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
/* ignore the CRC length */
len = (skb->data[1] | (skb->data[2] << 8)) - 4;
- if (len > ETH_FRAME_LEN)
+ if (len > ETH_FRAME_LEN || len > skb->len)
return 0;
/* the last packet of current skb */
diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c
index 6aaa6eb9df72..3d126761044f 100644
--- a/drivers/net/usb/zaurus.c
+++ b/drivers/net/usb/zaurus.c
@@ -268,6 +268,11 @@ static const struct usb_device_id products [] = {
.bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
.bInterfaceProtocol = USB_CDC_PROTO_NONE
+#define ZAURUS_FAKE_INTERFACE \
+ .bInterfaceClass = USB_CLASS_COMM, \
+ .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \
+ .bInterfaceProtocol = USB_CDC_PROTO_NONE
+
/* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
{
.match_flags = USB_DEVICE_ID_MATCH_INT_INFO
@@ -325,6 +330,13 @@ static const struct usb_device_id products [] = {
.idProduct = 0x9032, /* SL-6000 */
ZAURUS_MASTER_INTERFACE,
.driver_info = ZAURUS_PXA_INFO,
+}, {
+ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
+ | USB_DEVICE_ID_MATCH_DEVICE,
+ .idVendor = 0x04DD,
+ .idProduct = 0x9032, /* SL-6000 */
+ ZAURUS_FAKE_INTERFACE,
+ .driver_info = (unsigned long)&bogus_mdlm_info,
}, {
.match_flags = USB_DEVICE_ID_MATCH_INT_INFO
| USB_DEVICE_ID_MATCH_DEVICE,
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index ee7460ee3d05..57ff2fd95f75 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -114,7 +114,7 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
rcu_read_lock();
rcv = rcu_dereference(priv->peer);
- if (unlikely(!rcv)) {
+ if (unlikely(!rcv) || !pskb_may_pull(skb, ETH_HLEN)) {
kfree_skb(skb);
goto drop;
}
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 0bfadec8b79c..d59cb381e80b 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -490,11 +490,11 @@ static int vxlan_fdb_append(struct vxlan_fdb *f,
rd = kmalloc(sizeof(*rd), GFP_ATOMIC);
if (rd == NULL)
- return -ENOBUFS;
+ return -ENOMEM;
if (dst_cache_init(&rd->dst_cache, GFP_ATOMIC)) {
kfree(rd);
- return -ENOBUFS;
+ return -ENOMEM;
}
rd->remote_ip = *ip;
diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c
index 94d34ee02265..01163b333945 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -746,6 +746,9 @@ ath5k_eeprom_convert_pcal_info_5111(struct ath5k_hw *ah, int mode,
}
}
+ if (idx == AR5K_EEPROM_N_PD_CURVES)
+ goto err_out;
+
ee->ee_pd_gains[mode] = 1;
pd = &chinfo[pier].pd_curves[idx];
diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index 625823e45d8f..06a6e7443550 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -31,6 +31,7 @@ static int htc_issue_send(struct htc_target *target, struct sk_buff* skb,
hdr->endpoint_id = epid;
hdr->flags = flags;
hdr->payload_len = cpu_to_be16(len);
+ memset(hdr->control, 0, sizeof(hdr->control));
status = target->hif->send(target->hif_dev, endpoint->ul_pipeid, skb);
@@ -278,6 +279,10 @@ int htc_connect_service(struct htc_target *target,
conn_msg->dl_pipeid = endpoint->dl_pipeid;
conn_msg->ul_pipeid = endpoint->ul_pipeid;
+ /* To prevent infoleak */
+ conn_msg->svc_meta_len = 0;
+ conn_msg->pad = 0;
+
ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0);
if (ret)
goto err;
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index 202f421e0e37..1ea80d004d46 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1920,7 +1920,7 @@ static int carl9170_parse_eeprom(struct ar9170 *ar)
WARN_ON(!(tx_streams >= 1 && tx_streams <=
IEEE80211_HT_MCS_TX_MAX_STREAMS));
- tx_params = (tx_streams - 1) <<
+ tx_params |= (tx_streams - 1) <<
IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
carl9170_band_2GHz.ht_cap.mcs.tx_params |= tx_params;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index d231042f19d6..33a7378164b8 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -216,6 +216,8 @@ static int brcmf_init_nvram_parser(struct nvram_parser *nvp,
size = BRCMF_FW_MAX_NVRAM_SIZE;
else
size = data_len;
+ /* Add space for properties we may add */
+ size += strlen(BRCMF_FW_DEFAULT_BOARDREV) + 1;
/* Alloc for extra 0 byte + roundup by 4 + length field */
size += 1 + 3 + sizeof(u32);
nvp->nvram = kzalloc(size, GFP_KERNEL);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index d3d79219fbb0..9e90737f4d49 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -22,6 +22,7 @@
#include <linux/interrupt.h>
#include <linux/bcma/bcma.h>
#include <linux/sched.h>
+#include <linux/io.h>
#include <asm/unaligned.h>
#include <soc.h>
@@ -406,47 +407,6 @@ brcmf_pcie_write_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
}
-static void
-brcmf_pcie_copy_mem_todev(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
- void *srcaddr, u32 len)
-{
- void __iomem *address = devinfo->tcm + mem_offset;
- __le32 *src32;
- __le16 *src16;
- u8 *src8;
-
- if (((ulong)address & 4) || ((ulong)srcaddr & 4) || (len & 4)) {
- if (((ulong)address & 2) || ((ulong)srcaddr & 2) || (len & 2)) {
- src8 = (u8 *)srcaddr;
- while (len) {
- iowrite8(*src8, address);
- address++;
- src8++;
- len--;
- }
- } else {
- len = len / 2;
- src16 = (__le16 *)srcaddr;
- while (len) {
- iowrite16(le16_to_cpu(*src16), address);
- address += 2;
- src16++;
- len--;
- }
- }
- } else {
- len = len / 4;
- src32 = (__le32 *)srcaddr;
- while (len) {
- iowrite32(le32_to_cpu(*src32), address);
- address += 4;
- src32++;
- len--;
- }
- }
-}
-
-
static void
brcmf_pcie_copy_dev_tomem(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
void *dstaddr, u32 len)
@@ -1422,8 +1382,8 @@ static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo,
return err;
brcmf_dbg(PCIE, "Download FW %s\n", devinfo->fw_name);
- brcmf_pcie_copy_mem_todev(devinfo, devinfo->ci->rambase,
- (void *)fw->data, fw->size);
+ memcpy_toio(devinfo->tcm + devinfo->ci->rambase,
+ (void *)fw->data, fw->size);
resetintr = get_unaligned_le32(fw->data);
release_firmware(fw);
@@ -1437,7 +1397,7 @@ static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo,
brcmf_dbg(PCIE, "Download NVRAM %s\n", devinfo->nvram_name);
address = devinfo->ci->rambase + devinfo->ci->ramsize -
nvram_len;
- brcmf_pcie_copy_mem_todev(devinfo, address, nvram, nvram_len);
+ memcpy_toio(devinfo->tcm + address, nvram, nvram_len);
brcmf_fw_nvram_free(nvram);
} else {
brcmf_dbg(PCIE, "No matching NVRAM file found %s\n",
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 998a4bd6db78..d8f34883c096 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -547,7 +547,7 @@ enum brcmf_sdio_frmtype {
BRCMF_SDIO_FT_SUB,
};
-#define SDIOD_DRVSTR_KEY(chip, pmu) (((chip) << 16) | (pmu))
+#define SDIOD_DRVSTR_KEY(chip, pmu) (((unsigned int)(chip) << 16) | (pmu))
/* SDIO Pad drive strength to select value mappings */
struct sdiod_drive_str {
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c
index 8c0719468d00..6bd2486f617e 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c
@@ -315,7 +315,7 @@ static int iwlagn_mac_start(struct ieee80211_hw *hw)
priv->is_open = 1;
IWL_DEBUG_MAC80211(priv, "leave\n");
- return 0;
+ return ret;
}
static void iwlagn_mac_stop(struct ieee80211_hw *hw)
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index dd6924d21b8a..a34647efb5ea 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1987,6 +1987,15 @@ static void hw_scan_work(struct work_struct *work)
memcpy(skb_put(probe, req->ie_len), req->ie,
req->ie_len);
+ if (!ieee80211_tx_prepare_skb(hwsim->hw,
+ hwsim->hw_scan_vif,
+ probe,
+ hwsim->tmp_chan->band,
+ NULL)) {
+ kfree_skb(probe);
+ continue;
+ }
+
local_bh_disable();
mac80211_hwsim_tx_frame(hwsim->hw, probe,
hwsim->tmp_chan);
@@ -2919,6 +2928,10 @@ static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
}
txi->flags |= IEEE80211_TX_STAT_ACK;
}
+
+ if (hwsim_flags & HWSIM_TX_CTL_NO_ACK)
+ txi->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
+
ieee80211_tx_status_irqsafe(data2->hw, skb);
return 0;
out:
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index c78abfc7bd96..784063b1e60f 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -396,6 +396,8 @@ static int ray_config(struct pcmcia_device *link)
goto failed;
local->sram = ioremap(link->resource[2]->start,
resource_size(link->resource[2]));
+ if (!local->sram)
+ goto failed;
/*** Set up 16k window for shared memory (receive buffer) ***************/
link->resource[3]->flags |=
@@ -410,6 +412,8 @@ static int ray_config(struct pcmcia_device *link)
goto failed;
local->rmem = ioremap(link->resource[3]->start,
resource_size(link->resource[3]));
+ if (!local->rmem)
+ goto failed;
/*** Set up window for attribute memory ***********************************/
link->resource[4]->flags |=
@@ -424,6 +428,8 @@ static int ray_config(struct pcmcia_device *link)
goto failed;
local->amem = ioremap(link->resource[4]->start,
resource_size(link->resource[4]));
+ if (!local->amem)
+ goto failed;
dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index e6646c8a7bdb..78788402edd8 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -1040,15 +1040,11 @@ static void connect(struct backend_info *be)
xenvif_carrier_on(be->vif);
unregister_hotplug_status_watch(be);
- if (xenbus_exists(XBT_NIL, dev->nodename, "hotplug-status")) {
- err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch,
- NULL, hotplug_status_changed,
- "%s/%s", dev->nodename,
- "hotplug-status");
- if (err)
- goto err;
+ err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, NULL,
+ hotplug_status_changed,
+ "%s/%s", dev->nodename, "hotplug-status");
+ if (!err)
be->have_hotplug_status_watch = 1;
- }
netif_tx_wake_all_queues(be->vif->dev);
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 65a50bc5661d..82dcd44b3e5e 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -413,14 +413,12 @@ static bool xennet_tx_buf_gc(struct netfront_queue *queue)
queue->tx_link[id] = TX_LINK_NONE;
skb = queue->tx_skbs[id];
queue->tx_skbs[id] = NULL;
- if (unlikely(gnttab_query_foreign_access(
- queue->grant_tx_ref[id]) != 0)) {
+ if (unlikely(!gnttab_end_foreign_access_ref(
+ queue->grant_tx_ref[id], GNTMAP_readonly))) {
dev_alert(dev,
"Grant still in use by backend domain\n");
goto err;
}
- gnttab_end_foreign_access_ref(
- queue->grant_tx_ref[id], GNTMAP_readonly);
gnttab_release_grant_reference(
&queue->gref_tx_head, queue->grant_tx_ref[id]);
queue->grant_tx_ref[id] = GRANT_INVALID_REF;
@@ -840,7 +838,6 @@ static int xennet_get_responses(struct netfront_queue *queue,
int max = XEN_NETIF_NR_SLOTS_MIN + (rx->status <= RX_COPY_THRESHOLD);
int slots = 1;
int err = 0;
- unsigned long ret;
if (rx->flags & XEN_NETRXF_extra_info) {
err = xennet_get_extras(queue, extras, rp);
@@ -871,8 +868,13 @@ static int xennet_get_responses(struct netfront_queue *queue,
goto next;
}
- ret = gnttab_end_foreign_access_ref(ref, 0);
- BUG_ON(!ret);
+ if (!gnttab_end_foreign_access_ref(ref, 0)) {
+ dev_alert(dev,
+ "Grant still in use by backend domain\n");
+ queue->info->broken = true;
+ dev_alert(dev, "Disabled for further use\n");
+ return -EINVAL;
+ }
gnttab_release_grant_reference(&queue->gref_rx_head, ref);
@@ -1076,6 +1078,10 @@ static int xennet_poll(struct napi_struct *napi, int budget)
err = xennet_get_responses(queue, &rinfo, rp, &tmpq);
if (unlikely(err)) {
+ if (queue->info->broken) {
+ spin_unlock(&queue->rx_lock);
+ return 0;
+ }
err:
while ((skb = __skb_dequeue(&tmpq)))
__skb_queue_tail(&errq, skb);
@@ -1673,7 +1679,7 @@ static int setup_netfront(struct xenbus_device *dev,
struct netfront_queue *queue, unsigned int feature_split_evtchn)
{
struct xen_netif_tx_sring *txs;
- struct xen_netif_rx_sring *rxs;
+ struct xen_netif_rx_sring *rxs = NULL;
grant_ref_t gref;
int err;
@@ -1693,21 +1699,21 @@ static int setup_netfront(struct xenbus_device *dev,
err = xenbus_grant_ring(dev, txs, 1, &gref);
if (err < 0)
- goto grant_tx_ring_fail;
+ goto fail;
queue->tx_ring_ref = gref;
rxs = (struct xen_netif_rx_sring *)get_zeroed_page(GFP_NOIO | __GFP_HIGH);
if (!rxs) {
err = -ENOMEM;
xenbus_dev_fatal(dev, err, "allocating rx ring page");
- goto alloc_rx_ring_fail;
+ goto fail;
}
SHARED_RING_INIT(rxs);
FRONT_RING_INIT(&queue->rx, rxs, XEN_PAGE_SIZE);
err = xenbus_grant_ring(dev, rxs, 1, &gref);
if (err < 0)
- goto grant_rx_ring_fail;
+ goto fail;
queue->rx_ring_ref = gref;
if (feature_split_evtchn)
@@ -1720,22 +1726,28 @@ static int setup_netfront(struct xenbus_device *dev,
err = setup_netfront_single(queue);
if (err)
- goto alloc_evtchn_fail;
+ goto fail;
return 0;
/* If we fail to setup netfront, it is safe to just revoke access to
* granted pages because backend is not accessing it at this point.
*/
-alloc_evtchn_fail:
- gnttab_end_foreign_access_ref(queue->rx_ring_ref, 0);
-grant_rx_ring_fail:
- free_page((unsigned long)rxs);
-alloc_rx_ring_fail:
- gnttab_end_foreign_access_ref(queue->tx_ring_ref, 0);
-grant_tx_ring_fail:
- free_page((unsigned long)txs);
-fail:
+ fail:
+ if (queue->rx_ring_ref != GRANT_INVALID_REF) {
+ gnttab_end_foreign_access(queue->rx_ring_ref, 0,
+ (unsigned long)rxs);
+ queue->rx_ring_ref = GRANT_INVALID_REF;
+ } else {
+ free_page((unsigned long)rxs);
+ }
+ if (queue->tx_ring_ref != GRANT_INVALID_REF) {
+ gnttab_end_foreign_access(queue->tx_ring_ref, 0,
+ (unsigned long)txs);
+ queue->tx_ring_ref = GRANT_INVALID_REF;
+ } else {
+ free_page((unsigned long)txs);
+ }
return err;
}
diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index ed65993aae96..838ec17073fd 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -1617,7 +1617,9 @@ static int port100_probe(struct usb_interface *interface,
nfc_digital_free_device(dev->nfc_digital_dev);
error:
+ usb_kill_urb(dev->in_urb);
usb_free_urb(dev->in_urb);
+ usb_kill_urb(dev->out_urb);
usb_free_urb(dev->out_urb);
usb_put_dev(dev->udev);
diff --git a/drivers/nfc/st21nfca/se.c b/drivers/nfc/st21nfca/se.c
index eac608a457f0..475f8a67856d 100644
--- a/drivers/nfc/st21nfca/se.c
+++ b/drivers/nfc/st21nfca/se.c
@@ -330,6 +330,11 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
return -ENOMEM;
transaction->aid_len = skb->data[1];
+
+ /* Checking if the length of the AID is valid */
+ if (transaction->aid_len > sizeof(transaction->aid))
+ return -EINVAL;
+
memcpy(transaction->aid, &skb->data[2],
transaction->aid_len);
@@ -339,6 +344,11 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
return -EPROTO;
transaction->params_len = skb->data[transaction->aid_len + 3];
+
+ /* Total size is allocated (skb->len - 2) minus fixed array members */
+ if (transaction->params_len > ((skb->len - 2) - sizeof(struct nfc_evt_transaction)))
+ return -EINVAL;
+
memcpy(transaction->params, skb->data +
transaction->aid_len + 4, transaction->params_len);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 8b8b096167d7..31be1c69fd70 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -120,6 +120,8 @@ static int pcie_poll_cmd(struct controller *ctrl, int timeout)
if (slot_status & PCI_EXP_SLTSTA_CC) {
pcie_capability_write_word(pdev, PCI_EXP_SLTSTA,
PCI_EXP_SLTSTA_CC);
+ ctrl->cmd_busy = 0;
+ smp_mb();
return 1;
}
if (timeout < 0)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index f9aef2ac03a1..4cce72017109 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1355,6 +1355,7 @@ int mtk_pctrl_init(struct platform_device *pdev,
node = of_parse_phandle(np, "mediatek,pctl-regmap", 0);
if (node) {
pctl->regmap1 = syscon_node_to_regmap(node);
+ of_node_put(node);
if (IS_ERR(pctl->regmap1))
return PTR_ERR(pctl->regmap1);
} else if (regmap) {
@@ -1368,6 +1369,7 @@ int mtk_pctrl_init(struct platform_device *pdev,
node = of_parse_phandle(np, "mediatek,pctl-regmap", 1);
if (node) {
pctl->regmap2 = syscon_node_to_regmap(node);
+ of_node_put(node);
if (IS_ERR(pctl->regmap2))
return PTR_ERR(pctl->regmap2);
}
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index d318ca055489..6e237c46e1bd 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1916,8 +1916,10 @@ static int nmk_pinctrl_probe(struct platform_device *pdev)
}
prcm_np = of_parse_phandle(np, "prcm", 0);
- if (prcm_np)
+ if (prcm_np) {
npct->prcm_base = of_iomap(prcm_np, 0);
+ of_node_put(prcm_np);
+ }
if (!npct->prcm_base) {
if (version == PINCTRL_NMK_STN8815) {
dev_info(&pdev->dev,
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 5020ae534479..074a7e044e25 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -31,10 +31,10 @@ static const struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_BIAS_BUS_HOLD, "input bias bus hold", NULL, false),
PCONFDUMP(PIN_CONFIG_BIAS_DISABLE, "input bias disabled", NULL, false),
PCONFDUMP(PIN_CONFIG_BIAS_HIGH_IMPEDANCE, "input bias high impedance", NULL, false),
- PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", NULL, false),
+ PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", "ohms", true),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_PIN_DEFAULT,
- "input bias pull to pin specific state", NULL, false),
- PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL, false),
+ "input bias pull to pin specific state", "ohms", true),
+ PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", "ohms", true),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL, false),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL, false),
PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL, false),
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 17827a88b85e..9bcb238c2e12 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2414,6 +2414,7 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
node = of_parse_phandle(np, "rockchip,grf", 0);
if (node) {
info->regmap_base = syscon_node_to_regmap(node);
+ of_node_put(node);
if (IS_ERR(info->regmap_base))
return PTR_ERR(info->regmap_base);
} else {
@@ -2450,6 +2451,7 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
node = of_parse_phandle(np, "rockchip,pmu", 0);
if (node) {
info->regmap_pmu = syscon_node_to_regmap(node);
+ of_node_put(node);
if (IS_ERR(info->regmap_pmu))
return PTR_ERR(info->regmap_pmu);
}
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 8c146e2b6727..4664d3e191c8 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1125,8 +1125,6 @@ static void kbd_led_set(struct led_classdev *led_cdev,
if (value > samsung->kbd_led.max_brightness)
value = samsung->kbd_led.max_brightness;
- else if (value < 0)
- value = 0;
samsung->kbd_led_wk = value;
queue_work(samsung->led_workqueue, &samsung->kbd_led_work);
diff --git a/drivers/power/supply/ab8500_fg.c b/drivers/power/supply/ab8500_fg.c
index d6079e892e11..c07437ad1b85 100644
--- a/drivers/power/supply/ab8500_fg.c
+++ b/drivers/power/supply/ab8500_fg.c
@@ -2545,8 +2545,10 @@ static int ab8500_fg_sysfs_init(struct ab8500_fg *di)
ret = kobject_init_and_add(&di->fg_kobject,
&ab8500_fg_ktype,
NULL, "battery");
- if (ret < 0)
+ if (ret < 0) {
+ kobject_put(&di->fg_kobject);
dev_err(di->dev, "failed to create sysfs entry\n");
+ }
return ret;
}
diff --git a/drivers/power/supply/wm8350_power.c b/drivers/power/supply/wm8350_power.c
index 5c5880664e09..28c7102fb24e 100644
--- a/drivers/power/supply/wm8350_power.c
+++ b/drivers/power/supply/wm8350_power.c
@@ -410,44 +410,112 @@ static const struct power_supply_desc wm8350_usb_desc = {
* Initialisation
*********************************************************************/
-static void wm8350_init_charger(struct wm8350 *wm8350)
+static int wm8350_init_charger(struct wm8350 *wm8350)
{
+ int ret;
+
/* register our interest in charger events */
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT,
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT,
wm8350_charger_handler, 0, "Battery hot", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD,
+ if (ret)
+ goto err;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD,
wm8350_charger_handler, 0, "Battery cold", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL,
+ if (ret)
+ goto free_chg_bat_hot;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL,
wm8350_charger_handler, 0, "Battery fail", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_TO,
+ if (ret)
+ goto free_chg_bat_cold;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_TO,
wm8350_charger_handler, 0,
"Charger timeout", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_END,
+ if (ret)
+ goto free_chg_bat_fail;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_END,
wm8350_charger_handler, 0,
"Charge end", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_START,
+ if (ret)
+ goto free_chg_to;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_START,
wm8350_charger_handler, 0,
"Charge start", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY,
+ if (ret)
+ goto free_chg_end;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY,
wm8350_charger_handler, 0,
"Fast charge ready", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9,
+ if (ret)
+ goto free_chg_start;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9,
wm8350_charger_handler, 0,
"Battery <3.9V", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1,
+ if (ret)
+ goto free_chg_fast_rdy;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1,
wm8350_charger_handler, 0,
"Battery <3.1V", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85,
+ if (ret)
+ goto free_chg_vbatt_lt_3p9;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85,
wm8350_charger_handler, 0,
"Battery <2.85V", wm8350);
+ if (ret)
+ goto free_chg_vbatt_lt_3p1;
/* and supply change events */
- wm8350_register_irq(wm8350, WM8350_IRQ_EXT_USB_FB,
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_EXT_USB_FB,
wm8350_charger_handler, 0, "USB", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_EXT_WALL_FB,
+ if (ret)
+ goto free_chg_vbatt_lt_2p85;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_EXT_WALL_FB,
wm8350_charger_handler, 0, "Wall", wm8350);
- wm8350_register_irq(wm8350, WM8350_IRQ_EXT_BAT_FB,
+ if (ret)
+ goto free_ext_usb_fb;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_EXT_BAT_FB,
wm8350_charger_handler, 0, "Battery", wm8350);
+ if (ret)
+ goto free_ext_wall_fb;
+
+ return 0;
+
+free_ext_wall_fb:
+ wm8350_free_irq(wm8350, WM8350_IRQ_EXT_WALL_FB, wm8350);
+free_ext_usb_fb:
+ wm8350_free_irq(wm8350, WM8350_IRQ_EXT_USB_FB, wm8350);
+free_chg_vbatt_lt_2p85:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85, wm8350);
+free_chg_vbatt_lt_3p1:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1, wm8350);
+free_chg_vbatt_lt_3p9:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9, wm8350);
+free_chg_fast_rdy:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY, wm8350);
+free_chg_start:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_START, wm8350);
+free_chg_end:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_END, wm8350);
+free_chg_to:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_TO, wm8350);
+free_chg_bat_fail:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_FAIL, wm8350);
+free_chg_bat_cold:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_COLD, wm8350);
+free_chg_bat_hot:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_BAT_HOT, wm8350);
+err:
+ return ret;
}
static void free_charger_irq(struct wm8350 *wm8350)
@@ -458,6 +526,7 @@ static void free_charger_irq(struct wm8350 *wm8350)
wm8350_free_irq(wm8350, WM8350_IRQ_CHG_TO, wm8350);
wm8350_free_irq(wm8350, WM8350_IRQ_CHG_END, wm8350);
wm8350_free_irq(wm8350, WM8350_IRQ_CHG_START, wm8350);
+ wm8350_free_irq(wm8350, WM8350_IRQ_CHG_FAST_RDY, wm8350);
wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P9, wm8350);
wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_3P1, wm8350);
wm8350_free_irq(wm8350, WM8350_IRQ_CHG_VBATT_LT_2P85, wm8350);
diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
index 731d0423c8aa..b690621b4fc8 100644
--- a/drivers/ptp/ptp_sysfs.c
+++ b/drivers/ptp/ptp_sysfs.c
@@ -26,7 +26,7 @@ static ssize_t clock_name_show(struct device *dev,
struct device_attribute *attr, char *page)
{
struct ptp_clock *ptp = dev_get_drvdata(dev);
- return snprintf(page, PAGE_SIZE-1, "%s\n", ptp->info->name);
+ return sysfs_emit(page, "%s\n", ptp->info->name);
}
static DEVICE_ATTR(clock_name, 0444, clock_name_show, NULL);
@@ -240,7 +240,7 @@ static ssize_t ptp_pin_show(struct device *dev, struct device_attribute *attr,
mutex_unlock(&ptp->pincfg_mux);
- return snprintf(page, PAGE_SIZE, "%u %u\n", func, chan);
+ return sysfs_emit(page, "%u %u\n", func, chan);
}
static ssize_t ptp_pin_store(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c
index d7f5f7de030d..8b3aad06e236 100644
--- a/drivers/pwm/pwm-lpc18xx-sct.c
+++ b/drivers/pwm/pwm-lpc18xx-sct.c
@@ -406,12 +406,6 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_LIMIT,
BIT(lpc18xx_pwm->period_event));
- ret = pwmchip_add(&lpc18xx_pwm->chip);
- if (ret < 0) {
- dev_err(&pdev->dev, "pwmchip_add failed: %d\n", ret);
- goto disable_pwmclk;
- }
-
for (i = 0; i < lpc18xx_pwm->chip.npwm; i++) {
struct lpc18xx_pwm_data *data;
@@ -421,14 +415,12 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
- goto remove_pwmchip;
+ goto disable_pwmclk;
}
pwm_set_chip_data(pwm, data);
}
- platform_set_drvdata(pdev, lpc18xx_pwm);
-
val = lpc18xx_pwm_readl(lpc18xx_pwm, LPC18XX_PWM_CTRL);
val &= ~LPC18XX_PWM_BIDIR;
val &= ~LPC18XX_PWM_CTRL_HALT;
@@ -436,10 +428,16 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
val |= LPC18XX_PWM_PRE(0);
lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CTRL, val);
+ ret = pwmchip_add(&lpc18xx_pwm->chip);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "pwmchip_add failed: %d\n", ret);
+ goto disable_pwmclk;
+ }
+
+ platform_set_drvdata(pdev, lpc18xx_pwm);
+
return 0;
-remove_pwmchip:
- pwmchip_remove(&lpc18xx_pwm->chip);
disable_pwmclk:
clk_disable_unprepare(lpc18xx_pwm->pwm_clk);
return ret;
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index 323b629474a6..9f76ad9e959d 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -472,6 +472,7 @@ static int wcnss_alloc_memory_region(struct qcom_wcnss *wcnss)
}
ret = of_address_to_resource(node, 0, &r);
+ of_node_put(node);
if (ret)
return ret;
diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c
index fa247deb9cf4..b45d7d9b8c06 100644
--- a/drivers/rtc/rtc-wm8350.c
+++ b/drivers/rtc/rtc-wm8350.c
@@ -443,14 +443,21 @@ static int wm8350_rtc_probe(struct platform_device *pdev)
return ret;
}
- wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
wm8350_rtc_update_handler, 0,
"RTC Seconds", wm8350);
+ if (ret)
+ return ret;
+
wm8350_mask_irq(wm8350, WM8350_IRQ_RTC_SEC);
- wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
wm8350_rtc_alarm_handler, 0,
"RTC Alarm", wm8350);
+ if (ret) {
+ wm8350_free_irq(wm8350, WM8350_IRQ_RTC_SEC, wm8350);
+ return ret;
+ }
return 0;
}
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index f44d0487236e..bd850c5faf77 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -3381,13 +3381,11 @@ static int __init aha152x_setup(char *str)
setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0;
- if (ints[0] > 8) { /*}*/
+ if (ints[0] > 8)
printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
"[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
- } else {
+ else
setup_count++;
- return 0;
- }
return 1;
}
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index 0a70d54a4df6..47e599352468 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -722,7 +722,7 @@ bfad_im_serial_num_show(struct device *dev, struct device_attribute *attr,
char serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];
bfa_get_adapter_serial_num(&bfad->bfa, serial_num);
- return snprintf(buf, PAGE_SIZE, "%s\n", serial_num);
+ return sysfs_emit(buf, "%s\n", serial_num);
}
static ssize_t
@@ -736,7 +736,7 @@ bfad_im_model_show(struct device *dev, struct device_attribute *attr,
char model[BFA_ADAPTER_MODEL_NAME_LEN];
bfa_get_adapter_model(&bfad->bfa, model);
- return snprintf(buf, PAGE_SIZE, "%s\n", model);
+ return sysfs_emit(buf, "%s\n", model);
}
static ssize_t
@@ -816,7 +816,7 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
"Invalid Model");
- return snprintf(buf, PAGE_SIZE, "%s\n", model_descr);
+ return sysfs_emit(buf, "%s\n", model_descr);
}
static ssize_t
@@ -830,7 +830,7 @@ bfad_im_node_name_show(struct device *dev, struct device_attribute *attr,
u64 nwwn;
nwwn = bfa_fcs_lport_get_nwwn(port->fcs_port);
- return snprintf(buf, PAGE_SIZE, "0x%llx\n", cpu_to_be64(nwwn));
+ return sysfs_emit(buf, "0x%llx\n", cpu_to_be64(nwwn));
}
static ssize_t
@@ -847,7 +847,7 @@ bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr,
bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
strlcpy(symname, port_attr.port_cfg.sym_name.symname,
BFA_SYMNAME_MAXLEN);
- return snprintf(buf, PAGE_SIZE, "%s\n", symname);
+ return sysfs_emit(buf, "%s\n", symname);
}
static ssize_t
@@ -861,14 +861,14 @@ bfad_im_hw_version_show(struct device *dev, struct device_attribute *attr,
char hw_ver[BFA_VERSION_LEN];
bfa_get_pci_chip_rev(&bfad->bfa, hw_ver);
- return snprintf(buf, PAGE_SIZE, "%s\n", hw_ver);
+ return sysfs_emit(buf, "%s\n", hw_ver);
}
static ssize_t
bfad_im_drv_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_VERSION);
+ return sysfs_emit(buf, "%s\n", BFAD_DRIVER_VERSION);
}
static ssize_t
@@ -882,7 +882,7 @@ bfad_im_optionrom_version_show(struct device *dev,
char optrom_ver[BFA_VERSION_LEN];
bfa_get_adapter_optrom_ver(&bfad->bfa, optrom_ver);
- return snprintf(buf, PAGE_SIZE, "%s\n", optrom_ver);
+ return sysfs_emit(buf, "%s\n", optrom_ver);
}
static ssize_t
@@ -896,7 +896,7 @@ bfad_im_fw_version_show(struct device *dev, struct device_attribute *attr,
char fw_ver[BFA_VERSION_LEN];
bfa_get_adapter_fw_ver(&bfad->bfa, fw_ver);
- return snprintf(buf, PAGE_SIZE, "%s\n", fw_ver);
+ return sysfs_emit(buf, "%s\n", fw_ver);
}
static ssize_t
@@ -908,7 +908,7 @@ bfad_im_num_of_ports_show(struct device *dev, struct device_attribute *attr,
(struct bfad_im_port_s *) shost->hostdata[0];
struct bfad_s *bfad = im_port->bfad;
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return sysfs_emit(buf, "%d\n",
bfa_get_nports(&bfad->bfa));
}
@@ -916,7 +916,7 @@ static ssize_t
bfad_im_drv_name_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_NAME);
+ return sysfs_emit(buf, "%s\n", BFAD_DRIVER_NAME);
}
static ssize_t
@@ -935,14 +935,14 @@ bfad_im_num_of_discovered_ports_show(struct device *dev,
rports = kzalloc(sizeof(struct bfa_rport_qualifier_s) * nrports,
GFP_ATOMIC);
if (rports == NULL)
- return snprintf(buf, PAGE_SIZE, "Failed\n");
+ return sysfs_emit(buf, "Failed\n");
spin_lock_irqsave(&bfad->bfad_lock, flags);
bfa_fcs_lport_get_rport_quals(port->fcs_port, rports, &nrports);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
kfree(rports);
- return snprintf(buf, PAGE_SIZE, "%d\n", nrports);
+ return sysfs_emit(buf, "%d\n", nrports);
}
static DEVICE_ATTR(serial_number, S_IRUGO,
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 5ed28111c3c3..569b662e19e7 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -43,7 +43,7 @@
#define IBMVSCSIS_VERSION "v0.2"
-#define INITIAL_SRP_LIMIT 800
+#define INITIAL_SRP_LIMIT 1024
#define DEFAULT_MAX_SECTORS 256
#define MAX_TXU 1024 * 1024
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index aac9c648df0c..175713770068 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1663,6 +1663,7 @@ static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp)
if (cancel_delayed_work_sync(&ep->timeout_work)) {
FC_EXCH_DBG(ep, "Exchange timer canceled due to ABTS response\n");
fc_exch_release(ep); /* release from pending timer hold */
+ return;
}
spin_lock_bh(&ep->ex_lock);
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index d75d3d11bc80..c05a3e16f615 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -220,7 +220,7 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc)
task->total_xfer_len = qc->nbytes;
task->num_scatter = qc->n_elem;
task->data_dir = qc->dma_dir;
- } else if (qc->tf.protocol == ATA_PROT_NODATA) {
+ } else if (!ata_is_data(qc->tf.protocol)) {
task->data_dir = DMA_NONE;
} else {
for_each_sg(qc->sg, sg, qc->n_elem, si)
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 8280046fd1f0..359fd39c6345 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -679,6 +679,7 @@ static struct pci_device_id mvs_pci_table[] = {
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
{ PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
+ { PCI_VDEVICE(TTI, 0x2640), chip_6440 },
{ PCI_VDEVICE(TTI, 0x2710), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2720), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2721), chip_9480 },
@@ -730,7 +731,7 @@ static ssize_t
mvs_show_driver_version(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
- return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
+ return sysfs_emit(buffer, "%s\n", DRV_VERSION);
}
static DEVICE_ATTR(driver_version,
@@ -782,7 +783,7 @@ mvs_store_interrupt_coalescing(struct device *cdev,
static ssize_t mvs_show_interrupt_coalescing(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
- return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
+ return sysfs_emit(buffer, "%d\n", interrupt_coalescing);
}
static DEVICE_ATTR(interrupt_coalescing,
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index f374abfb7f1f..cc90b5c8d462 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1748,6 +1748,7 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
+ ccb->n_elem = 0;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
@@ -1810,6 +1811,7 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
+ ccb->n_elem = 0;
pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;
@@ -1826,7 +1828,7 @@ static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
sata_cmd.tag = cpu_to_le32(ccb_tag);
sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
- sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
+ sata_cmd.ncqtag_atap_dir_m = cpu_to_le32((0x1 << 7) | (0x5 << 9));
memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd, 0);
@@ -3766,12 +3768,11 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
mb();
if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
- pm8001_tag_free(pm8001_ha, tag);
sas_free_task(t);
- /* clear the flag */
- pm8001_dev->id &= 0xBFFFFFFF;
- } else
+ pm8001_dev->id &= ~NCQ_ABORT_ALL_FLAG;
+ } else {
t->task_done(t);
+ }
return 0;
}
@@ -4718,7 +4719,7 @@ int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
if (pm8001_ha->chip_id != chip_8001)
- sspTMCmd.ds_ads_m = 0x08;
+ sspTMCmd.ds_ads_m = cpu_to_le32(0x08);
circularQ = &pm8001_ha->inbnd_q_tbl[0];
ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd, 0);
return ret;
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index df5f0bc29587..4eae727ccfbc 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -870,9 +870,11 @@ pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha)
else
page_code = THERMAL_PAGE_CODE_8H;
- payload.cfg_pg[0] = (THERMAL_LOG_ENABLE << 9) |
- (THERMAL_ENABLE << 8) | page_code;
- payload.cfg_pg[1] = (LTEMPHIL << 24) | (RTEMPHIL << 8);
+ payload.cfg_pg[0] =
+ cpu_to_le32((THERMAL_LOG_ENABLE << 9) |
+ (THERMAL_ENABLE << 8) | page_code);
+ payload.cfg_pg[1] =
+ cpu_to_le32((LTEMPHIL << 24) | (RTEMPHIL << 8));
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
if (rc)
@@ -1424,6 +1426,7 @@ static void pm80xx_send_abort_all(struct pm8001_hba_info *pm8001_ha,
ccb->device = pm8001_ha_dev;
ccb->ccb_tag = ccb_tag;
ccb->task = task;
+ ccb->n_elem = 0;
circularQ = &pm8001_ha->inbnd_q_tbl[0];
@@ -1504,7 +1507,7 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha,
sata_cmd.tag = cpu_to_le32(ccb_tag);
sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
- sata_cmd.ncqtag_atap_dir_m_dad |= ((0x1 << 7) | (0x5 << 9));
+ sata_cmd.ncqtag_atap_dir_m_dad = cpu_to_le32(((0x1 << 7) | (0x5 << 9)));
memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));
res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd, 0);
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 6249c4b6f4be..15fcb148d175 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1618,6 +1618,7 @@ qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
iocb->u.tmf.data = QLA_FUNCTION_FAILED;
} else if ((le16_to_cpu(sts->scsi_status) &
SS_RESPONSE_INFO_LEN_VALID)) {
+ host_to_fcp_swap(sts->data, sizeof(sts->data));
if (le32_to_cpu(sts->rsp_data_len) < 4) {
ql_log(ql_log_warn, fcport->vha, 0x503b,
"Async-%s error - hdl=%x not enough response(%d).\n",
diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index e1b32ed0aa20..bdfe94c023dc 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -210,12 +210,11 @@ static void scsifront_gnttab_done(struct vscsifrnt_info *info, uint32_t id)
return;
for (i = 0; i < s->nr_grants; i++) {
- if (unlikely(gnttab_query_foreign_access(s->gref[i]) != 0)) {
+ if (unlikely(!gnttab_try_end_foreign_access(s->gref[i]))) {
shost_printk(KERN_ALERT, info->host, KBUILD_MODNAME
"grant still in use by backend\n");
BUG();
}
- gnttab_end_foreign_access(s->gref[i], 0, 0UL);
}
kfree(s->sg);
diff --git a/drivers/scsi/zorro7xx.c b/drivers/scsi/zorro7xx.c
index aff31991aea9..ee6d97473853 100644
--- a/drivers/scsi/zorro7xx.c
+++ b/drivers/scsi/zorro7xx.c
@@ -158,6 +158,8 @@ static void zorro7xx_remove_one(struct zorro_dev *z)
scsi_remove_host(host);
NCR_700_release(host);
+ if (host->base > 0x01000000)
+ iounmap(hostdata->base);
kfree(hostdata);
free_irq(host->irq, host);
zorro_release_device(z);
diff --git a/drivers/soc/fsl/qe/qe_io.c b/drivers/soc/fsl/qe/qe_io.c
index 7ae59abc7863..127a4a836e67 100644
--- a/drivers/soc/fsl/qe/qe_io.c
+++ b/drivers/soc/fsl/qe/qe_io.c
@@ -41,6 +41,8 @@ int par_io_init(struct device_node *np)
if (ret)
return ret;
par_io = ioremap(res.start, resource_size(&res));
+ if (!par_io)
+ return -ENOMEM;
num_ports = of_get_property(np, "num-ports", NULL);
if (num_ports)
diff --git a/drivers/soc/ti/wkup_m3_ipc.c b/drivers/soc/ti/wkup_m3_ipc.c
index fc33bfdc957c..ead96fe2e7f5 100644
--- a/drivers/soc/ti/wkup_m3_ipc.c
+++ b/drivers/soc/ti/wkup_m3_ipc.c
@@ -405,9 +405,9 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (!irq) {
+ if (irq < 0) {
dev_err(&pdev->dev, "no irq resource\n");
- return -ENXIO;
+ return irq;
}
ret = devm_request_irq(dev, irq, wkup_m3_txev_handler,
diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index d1ca8f619b82..89a3121f4f25 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -1098,6 +1098,10 @@ static int tegra_spi_probe(struct platform_device *pdev)
tspi->phys = r->start;
spi_irq = platform_get_irq(pdev, 0);
+ if (spi_irq < 0) {
+ ret = spi_irq;
+ goto exit_free_master;
+ }
tspi->irq = spi_irq;
tspi->clk = devm_clk_get(&pdev->dev, "spi");
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 88bfe7682a9e..b8a3a78730b5 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1016,14 +1016,8 @@ static int tegra_slink_probe(struct platform_device *pdev)
struct resource *r;
int ret, spi_irq;
const struct tegra_slink_chip_data *cdata = NULL;
- const struct of_device_id *match;
- match = of_match_device(tegra_slink_of_match, &pdev->dev);
- if (!match) {
- dev_err(&pdev->dev, "Error: No device match found\n");
- return -ENODEV;
- }
- cdata = match->data;
+ cdata = of_device_get_match_data(&pdev->dev);
master = spi_alloc_master(&pdev->dev, sizeof(*tspi));
if (!master) {
diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c
index 085e9872c46d..93bfde68f545 100644
--- a/drivers/staging/fbtft/fb_st7789v.c
+++ b/drivers/staging/fbtft/fb_st7789v.c
@@ -85,6 +85,8 @@ enum st7789v_command {
*/
static int init_display(struct fbtft_par *par)
{
+ par->fbtftops.reset(par);
+
/* turn off sleep mode */
write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
mdelay(120);
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index 454e47424ade..463f920d3782 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -85,14 +85,15 @@ static void tx_complete(void *arg)
static int gdm_lte_rx(struct sk_buff *skb, struct nic *nic, int nic_type)
{
- int ret;
+ int ret, len;
+ len = skb->len + ETH_HLEN;
ret = netif_rx_ni(skb);
if (ret == NET_RX_DROP) {
nic->stats.rx_dropped++;
} else {
nic->stats.rx_packets++;
- nic->stats.rx_bytes += skb->len + ETH_HLEN;
+ nic->stats.rx_bytes += len;
}
return 0;
diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c
index d4c374cc4f74..a8a47013ba47 100644
--- a/drivers/thermal/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/int340x_thermal/int3400_thermal.c
@@ -51,7 +51,7 @@ struct int3400_thermal_priv {
struct art *arts;
int trt_count;
struct trt *trts;
- u8 uuid_bitmap;
+ u32 uuid_bitmap;
int rel_misc_dev_res;
int current_uuid_index;
};
diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c
index 8b70a1627356..799bc191982c 100644
--- a/drivers/tty/hvc/hvc_iucv.c
+++ b/drivers/tty/hvc/hvc_iucv.c
@@ -1469,7 +1469,9 @@ static int __init hvc_iucv_init(void)
*/
static int __init hvc_iucv_config(char *val)
{
- return kstrtoul(val, 10, &hvc_iucv_devices);
+ if (kstrtoul(val, 10, &hvc_iucv_devices))
+ pr_warn("hvc_iucv= invalid parameter value '%s'\n", val);
+ return 1;
}
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 69294ae154be..ea7f4af85d58 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -860,6 +860,7 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
struct mxser_port *info = container_of(port, struct mxser_port, port);
unsigned long page;
unsigned long flags;
+ int ret;
page = __get_free_page(GFP_KERNEL);
if (!page)
@@ -869,9 +870,9 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
if (!info->ioaddr || !info->type) {
set_bit(TTY_IO_ERROR, &tty->flags);
- free_page(page);
spin_unlock_irqrestore(&info->slock, flags);
- return 0;
+ ret = 0;
+ goto err_free_xmit;
}
info->port.xmit_buf = (unsigned char *) page;
@@ -897,8 +898,10 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
if (capable(CAP_SYS_ADMIN)) {
set_bit(TTY_IO_ERROR, &tty->flags);
return 0;
- } else
- return -ENODEV;
+ }
+
+ ret = -ENODEV;
+ goto err_free_xmit;
}
/*
@@ -943,6 +946,10 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
spin_unlock_irqrestore(&info->slock, flags);
return 0;
+err_free_xmit:
+ free_page(page);
+ info->port.xmit_buf = NULL;
+ return ret;
}
/*
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 67e5b587a106..2311f8a635a6 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -444,7 +444,7 @@ static u8 gsm_encode_modem(const struct gsm_dlci *dlci)
modembits |= MDM_RTR;
if (dlci->modem_tx & TIOCM_RI)
modembits |= MDM_IC;
- if (dlci->modem_tx & TIOCM_CD)
+ if (dlci->modem_tx & TIOCM_CD || dlci->gsm->initiator)
modembits |= MDM_DV;
return modembits;
}
@@ -1506,7 +1506,7 @@ static void gsm_dlci_t1(unsigned long data)
dlci->mode = DLCI_MODE_ADM;
gsm_dlci_open(dlci);
} else {
- gsm_dlci_close(dlci);
+ gsm_dlci_begin_close(dlci); /* prevent half open link */
}
break;
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index f89dfde934a3..54ed7675e447 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -86,7 +86,7 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
ret = of_address_to_resource(np, 0, &resource);
if (ret) {
dev_warn(&ofdev->dev, "invalid address\n");
- goto out;
+ goto err_unprepare;
}
spin_lock_init(&port->lock);
@@ -94,8 +94,17 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
port->mapsize = resource_size(&resource);
/* Check for shifted address mapping */
- if (of_property_read_u32(np, "reg-offset", &prop) == 0)
+ if (of_property_read_u32(np, "reg-offset", &prop) == 0) {
+ if (prop >= port->mapsize) {
+ dev_warn(&ofdev->dev, "reg-offset %u exceeds region size %pa\n",
+ prop, &port->mapsize);
+ ret = -EINVAL;
+ goto err_unprepare;
+ }
+
port->mapbase += prop;
+ port->mapsize -= prop;
+ }
/* Compatibility with the deprecated pxa driver and 8250_pxa drivers. */
if (of_device_is_compatible(np, "mrvl,mmp-uart"))
@@ -132,7 +141,7 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
dev_warn(&ofdev->dev, "unsupported reg-io-width (%d)\n",
prop);
ret = -EINVAL;
- goto out;
+ goto err_dispose;
}
}
@@ -162,7 +171,9 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
port->handle_irq = fsl8250_handle_irq;
return 0;
-out:
+err_dispose:
+ irq_dispose_mapping(port->irq);
+err_unprepare:
if (info->clk)
clk_disable_unprepare(info->clk);
return ret;
@@ -194,7 +205,7 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
port_type = (unsigned long)match->data;
ret = of_platform_serial_setup(ofdev, port_type, &port, info);
if (ret)
- goto out;
+ goto err_free;
switch (port_type) {
case PORT_8250 ... PORT_MAX_8250:
@@ -228,15 +239,18 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
break;
}
if (ret < 0)
- goto out;
+ goto err_dispose;
info->type = port_type;
info->line = ret;
platform_set_drvdata(ofdev, info);
return 0;
-out:
- kfree(info);
+err_dispose:
irq_dispose_mapping(port.irq);
+ if (info->clk)
+ clk_disable_unprepare(info->clk);
+err_free:
+ kfree(info);
return ret;
}
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 0314e78e31ff..72b89702d008 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -304,16 +304,16 @@ static int kgdboc_option_setup(char *opt)
{
if (!opt) {
pr_err("config string not provided\n");
- return -EINVAL;
+ return 1;
}
if (strlen(opt) >= MAX_CONFIG_LEN) {
pr_err("config string too long\n");
- return -ENOSPC;
+ return 1;
}
strcpy(config, opt);
- return 0;
+ return 1;
}
__setup("kgdboc=", kgdboc_option_setup);
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 8c89697c5357..15b9bf35457b 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -764,11 +764,8 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id)
goto out;
}
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) {
- spin_unlock(&port->lock);
+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);
- spin_lock(&port->lock);
- }
if (uart_circ_empty(xmit))
s3c24xx_serial_stop_tx(port);
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 8e69150776f5..a08b29fbaa50 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -245,7 +245,7 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
break;
case OMAP_DWC3_ID_FLOAT:
- if (omap->vbus_reg)
+ if (omap->vbus_reg && regulator_is_enabled(omap->vbus_reg))
regulator_disable(omap->vbus_reg);
val = dwc3_omap_read_utmi_ctrl(omap);
val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG;
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 58c4b745eae1..ccc47594064f 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2904,9 +2904,11 @@ static irqreturn_t dwc3_thread_interrupt(int irq, void *_evt)
unsigned long flags;
irqreturn_t ret = IRQ_NONE;
+ local_bh_disable();
spin_lock_irqsave(&dwc->lock, flags);
ret = dwc3_process_event_buf(evt);
spin_unlock_irqrestore(&dwc->lock, flags);
+ local_bh_enable();
return ret;
}
diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c
index a912b6b9153f..30eeaf9bc8ec 100644
--- a/drivers/usb/gadget/function/rndis.c
+++ b/drivers/usb/gadget/function/rndis.c
@@ -645,6 +645,7 @@ static int rndis_set_response(struct rndis_params *params,
BufLength = le32_to_cpu(buf->InformationBufferLength);
BufOffset = le32_to_cpu(buf->InformationBufferOffset);
if ((BufLength > RNDIS_MAX_TOTAL_SIZE) ||
+ (BufOffset > RNDIS_MAX_TOTAL_SIZE) ||
(BufOffset + 8 >= RNDIS_MAX_TOTAL_SIZE))
return -EINVAL;
@@ -924,6 +925,7 @@ struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v)
params->resp_avail = resp_avail;
params->v = v;
INIT_LIST_HEAD(¶ms->resp_queue);
+ spin_lock_init(¶ms->resp_lock);
pr_debug("%s: configNr = %d\n", __func__, i);
return params;
@@ -1017,12 +1019,14 @@ void rndis_free_response(struct rndis_params *params, u8 *buf)
{
rndis_resp_t *r, *n;
+ spin_lock(¶ms->resp_lock);
list_for_each_entry_safe(r, n, ¶ms->resp_queue, list) {
if (r->buf == buf) {
list_del(&r->list);
kfree(r);
}
}
+ spin_unlock(¶ms->resp_lock);
}
EXPORT_SYMBOL_GPL(rndis_free_response);
@@ -1032,14 +1036,17 @@ u8 *rndis_get_next_response(struct rndis_params *params, u32 *length)
if (!length) return NULL;
+ spin_lock(¶ms->resp_lock);
list_for_each_entry_safe(r, n, ¶ms->resp_queue, list) {
if (!r->send) {
r->send = 1;
*length = r->length;
+ spin_unlock(¶ms->resp_lock);
return r->buf;
}
}
+ spin_unlock(¶ms->resp_lock);
return NULL;
}
EXPORT_SYMBOL_GPL(rndis_get_next_response);
@@ -1056,7 +1063,9 @@ static rndis_resp_t *rndis_add_response(struct rndis_params *params, u32 length)
r->length = length;
r->send = 0;
+ spin_lock(¶ms->resp_lock);
list_add_tail(&r->list, ¶ms->resp_queue);
+ spin_unlock(¶ms->resp_lock);
return r;
}
diff --git a/drivers/usb/gadget/function/rndis.h b/drivers/usb/gadget/function/rndis.h
index ef92eb66d8ad..a389df725a29 100644
--- a/drivers/usb/gadget/function/rndis.h
+++ b/drivers/usb/gadget/function/rndis.h
@@ -194,6 +194,7 @@ typedef struct rndis_params
void (*resp_avail)(void *v);
void *v;
struct list_head resp_queue;
+ spinlock_t resp_lock;
} rndis_params;
/* RNDIS Message parser and other useless functions */
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 68e608389786..b2fc97dbda45 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -1833,8 +1833,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
spin_lock_irq (&dev->lock);
value = -EINVAL;
if (dev->buf) {
+ spin_unlock_irq(&dev->lock);
kfree(kbuf);
- goto fail;
+ return value;
}
dev->buf = kbuf;
@@ -1882,8 +1883,8 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
value = usb_gadget_probe_driver(&gadgetfs_driver);
if (value != 0) {
- kfree (dev->buf);
- dev->buf = NULL;
+ spin_lock_irq(&dev->lock);
+ goto fail;
} else {
/* at this point "good" hardware has for the first time
* let the USB the host see us. alternatively, if users
@@ -1900,6 +1901,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
return value;
fail:
+ dev->config = NULL;
+ dev->hs_config = NULL;
+ dev->dev = NULL;
spin_unlock_irq (&dev->lock);
pr_debug ("%s: %s fail %Zd, %p\n", shortname, __func__, value, dev);
kfree (dev->buf);
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 34ad964d54d1..5d8c3fd2acc8 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1253,7 +1253,6 @@ static void usb_gadget_remove_driver(struct usb_udc *udc)
usb_gadget_udc_stop(udc);
udc->driver = NULL;
- udc->dev.driver = NULL;
udc->gadget->dev.driver = NULL;
}
@@ -1301,7 +1300,6 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
driver->function);
udc->driver = driver;
- udc->dev.driver = &driver->driver;
udc->gadget->dev.driver = &driver->driver;
ret = driver->bind(udc->gadget, driver);
@@ -1321,7 +1319,6 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
dev_err(&udc->dev, "failed to start %s: %d\n",
udc->driver->function, ret);
udc->driver = NULL;
- udc->dev.driver = NULL;
udc->gadget->dev.driver = NULL;
return ret;
}
diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index 588e2531b8b8..b4cc04b6ae03 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1620,6 +1620,8 @@ static void xudc_getstatus(struct xusb_udc *udc)
break;
case USB_RECIP_ENDPOINT:
epnum = udc->setup.wIndex & USB_ENDPOINT_NUMBER_MASK;
+ if (epnum >= XUSB_MAX_ENDPOINTS)
+ goto stall;
target_ep = &udc->ep[epnum];
epcfgreg = udc->read_fn(udc->addr + target_ep->offset);
halt = epcfgreg & XUSB_EP_CFG_STALL_MASK;
@@ -1687,6 +1689,10 @@ static void xudc_set_clear_feature(struct xusb_udc *udc)
case USB_RECIP_ENDPOINT:
if (!udc->setup.wValue) {
endpoint = udc->setup.wIndex & USB_ENDPOINT_NUMBER_MASK;
+ if (endpoint >= XUSB_MAX_ENDPOINTS) {
+ xudc_ep0_stall(udc);
+ return;
+ }
target_ep = &udc->ep[endpoint];
outinbit = udc->setup.wIndex & USB_ENDPOINT_DIR_MASK;
outinbit = outinbit >> 7;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2df61fff8ae3..a08369cb3462 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1397,9 +1397,12 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
struct urb_priv *urb_priv;
int size, i;
- if (!urb || xhci_check_args(hcd, urb->dev, urb->ep,
- true, true, __func__) <= 0)
+ if (!urb)
return -EINVAL;
+ ret = xhci_check_args(hcd, urb->dev, urb->ep,
+ true, true, __func__);
+ if (ret <= 0)
+ return ret ? ret : -EINVAL;
slot_id = urb->dev->slot_id;
ep_index = xhci_get_endpoint_index(&urb->ep->desc);
@@ -3031,7 +3034,7 @@ static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,
return -EINVAL;
ret = xhci_check_args(xhci_to_hcd(xhci), udev, ep, 1, true, __func__);
if (ret <= 0)
- return -EINVAL;
+ return ret ? ret : -EINVAL;
if (usb_ss_max_streams(&ep->ss_ep_comp) == 0) {
xhci_warn(xhci, "WARN: SuperSpeed Endpoint Companion"
" descriptor for ep 0x%x does not support streams\n",
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 77c3ebe860c5..b495bbecf809 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -65,6 +65,7 @@ config USB_SERIAL_SIMPLE
- Libtransistor USB console
- a number of Motorola phones
- Motorola Tetra devices
+ - Nokia mobile phones
- Novatel Wireless GPS receivers
- Siemens USB/MPI adapter.
- ViVOtech ViVOpay USB device.
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index a8573da2717a..a2337d15233f 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -70,7 +70,6 @@
static const struct usb_device_id id_table[] = {
- { USB_DEVICE(0x1a86, 0x5512) },
{ USB_DEVICE(0x1a86, 0x5523) },
{ USB_DEVICE(0x1a86, 0x7522) },
{ USB_DEVICE(0x1a86, 0x7523) },
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 4c3ff0706554..c5d0d9e2bff2 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -201,6 +201,8 @@ static void option_instat_callback(struct urb *urb);
#define DELL_PRODUCT_5821E 0x81d7
#define DELL_PRODUCT_5821E_ESIM 0x81e0
+#define DELL_PRODUCT_5829E_ESIM 0x81e4
+#define DELL_PRODUCT_5829E 0x81e6
#define KYOCERA_VENDOR_ID 0x0c88
#define KYOCERA_PRODUCT_KPC650 0x17da
@@ -1058,6 +1060,10 @@ static const struct usb_device_id option_ids[] = {
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E_ESIM),
.driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
+ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5829E),
+ .driver_info = RSVD(0) | RSVD(6) },
+ { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5829E_ESIM),
+ .driver_info = RSVD(0) | RSVD(6) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -1249,10 +1255,16 @@ static const struct usb_device_id option_ids[] = {
.driver_info = NCTRL(2) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7011, 0xff), /* Telit LE910-S1 (ECM) */
.driver_info = NCTRL(2) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x701a, 0xff), /* Telit LE910R1 (RNDIS) */
+ .driver_info = NCTRL(2) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x701b, 0xff), /* Telit LE910R1 (ECM) */
+ .driver_info = NCTRL(2) },
{ USB_DEVICE(TELIT_VENDOR_ID, 0x9010), /* Telit SBL FN980 flashing device */
.driver_info = NCTRL(0) | ZLP },
{ USB_DEVICE(TELIT_VENDOR_ID, 0x9200), /* Telit LE910S1 flashing device */
.driver_info = NCTRL(0) | ZLP },
+ { USB_DEVICE(TELIT_VENDOR_ID, 0x9201), /* Telit LE910R1 flashing device */
+ .driver_info = NCTRL(0) | ZLP },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
.driver_info = RSVD(1) },
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 3dd0bbb36dd2..c5fa5b704ec5 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -105,6 +105,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530GC_PRODUCT_ID) },
{ USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) },
{ USB_DEVICE(AT_VENDOR_ID, AT_VTKIT3_PRODUCT_ID) },
+ { USB_DEVICE(IBM_VENDOR_ID, IBM_PRODUCT_ID) },
{ } /* Terminating entry */
};
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 62b8cd673aa1..908865495b48 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -33,6 +33,9 @@
#define ATEN_PRODUCT_UC485 0x2021
#define ATEN_PRODUCT_ID2 0x2118
+#define IBM_VENDOR_ID 0x04b3
+#define IBM_PRODUCT_ID 0x4016
+
#define IODATA_VENDOR_ID 0x04bb
#define IODATA_PRODUCT_ID 0x0a03
#define IODATA_PRODUCT_ID_RSAQ5 0x0a0e
diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
index 15e05ebf37ac..3681e6418262 100644
--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -94,6 +94,11 @@ DEVICE(moto_modem, MOTO_IDS);
{ USB_DEVICE(0x0cad, 0x9016) } /* TPG2200 */
DEVICE(motorola_tetra, MOTOROLA_TETRA_IDS);
+/* Nokia mobile phone driver */
+#define NOKIA_IDS() \
+ { USB_DEVICE(0x0421, 0x069a) } /* Nokia 130 (RM-1035) */
+DEVICE(nokia, NOKIA_IDS);
+
/* Novatel Wireless GPS driver */
#define NOVATEL_IDS() \
{ USB_DEVICE(0x09d7, 0x0100) } /* NovAtel FlexPack GPS */
@@ -126,6 +131,7 @@ static struct usb_serial_driver * const serial_drivers[] = {
&vivopay_device,
&moto_modem_device,
&motorola_tetra_device,
+ &nokia_device,
&novatel_gps_device,
&hp4x_device,
&suunto_device,
@@ -143,6 +149,7 @@ static const struct usb_device_id id_table[] = {
VIVOPAY_IDS(),
MOTO_IDS(),
MOTOROLA_TETRA_IDS(),
+ NOKIA_IDS(),
NOVATEL_IDS(),
HP4X_IDS(),
SUUNTO_IDS(),
diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c
index 4d6eb48b2c45..aa88ff70b078 100644
--- a/drivers/usb/storage/ene_ub6250.c
+++ b/drivers/usb/storage/ene_ub6250.c
@@ -251,36 +251,33 @@ static struct us_unusual_dev ene_ub6250_unusual_dev_list[] = {
#define memstick_logaddr(logadr1, logadr0) ((((u16)(logadr1)) << 8) | (logadr0))
-struct SD_STATUS {
- u8 Insert:1;
- u8 Ready:1;
- u8 MediaChange:1;
- u8 IsMMC:1;
- u8 HiCapacity:1;
- u8 HiSpeed:1;
- u8 WtP:1;
- u8 Reserved:1;
-};
-
-struct MS_STATUS {
- u8 Insert:1;
- u8 Ready:1;
- u8 MediaChange:1;
- u8 IsMSPro:1;
- u8 IsMSPHG:1;
- u8 Reserved1:1;
- u8 WtP:1;
- u8 Reserved2:1;
-};
-
-struct SM_STATUS {
- u8 Insert:1;
- u8 Ready:1;
- u8 MediaChange:1;
- u8 Reserved:3;
- u8 WtP:1;
- u8 IsMS:1;
-};
+/* SD_STATUS bits */
+#define SD_Insert BIT(0)
+#define SD_Ready BIT(1)
+#define SD_MediaChange BIT(2)
+#define SD_IsMMC BIT(3)
+#define SD_HiCapacity BIT(4)
+#define SD_HiSpeed BIT(5)
+#define SD_WtP BIT(6)
+ /* Bit 7 reserved */
+
+/* MS_STATUS bits */
+#define MS_Insert BIT(0)
+#define MS_Ready BIT(1)
+#define MS_MediaChange BIT(2)
+#define MS_IsMSPro BIT(3)
+#define MS_IsMSPHG BIT(4)
+ /* Bit 5 reserved */
+#define MS_WtP BIT(6)
+ /* Bit 7 reserved */
+
+/* SM_STATUS bits */
+#define SM_Insert BIT(0)
+#define SM_Ready BIT(1)
+#define SM_MediaChange BIT(2)
+ /* Bits 3-5 reserved */
+#define SM_WtP BIT(6)
+#define SM_IsMS BIT(7)
struct ms_bootblock_cis {
u8 bCistplDEVICE[6]; /* 0 */
@@ -451,9 +448,9 @@ struct ene_ub6250_info {
u8 *bbuf;
/* for 6250 code */
- struct SD_STATUS SD_Status;
- struct MS_STATUS MS_Status;
- struct SM_STATUS SM_Status;
+ u8 SD_Status;
+ u8 MS_Status;
+ u8 SM_Status;
/* ----- SD Control Data ---------------- */
/*SD_REGISTER SD_Regs; */
@@ -588,7 +585,7 @@ static int sd_scsi_test_unit_ready(struct us_data *us, struct scsi_cmnd *srb)
{
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
- if (info->SD_Status.Insert && info->SD_Status.Ready)
+ if ((info->SD_Status & SD_Insert) && (info->SD_Status & SD_Ready))
return USB_STOR_TRANSPORT_GOOD;
else {
ene_sd_init(us);
@@ -620,7 +617,7 @@ static int sd_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb)
0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
- if (info->SD_Status.WtP)
+ if (info->SD_Status & SD_WtP)
usb_stor_set_xfer_buf(mediaWP, 12, srb);
else
usb_stor_set_xfer_buf(mediaNoWP, 12, srb);
@@ -639,9 +636,9 @@ static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
usb_stor_dbg(us, "sd_scsi_read_capacity\n");
- if (info->SD_Status.HiCapacity) {
+ if (info->SD_Status & SD_HiCapacity) {
bl_len = 0x200;
- if (info->SD_Status.IsMMC)
+ if (info->SD_Status & SD_IsMMC)
bl_num = info->HC_C_SIZE-1;
else
bl_num = (info->HC_C_SIZE + 1) * 1024 - 1;
@@ -691,7 +688,7 @@ static int sd_scsi_read(struct us_data *us, struct scsi_cmnd *srb)
return USB_STOR_TRANSPORT_ERROR;
}
- if (info->SD_Status.HiCapacity)
+ if (info->SD_Status & SD_HiCapacity)
bnByte = bn;
/* set up the command wrapper */
@@ -731,7 +728,7 @@ static int sd_scsi_write(struct us_data *us, struct scsi_cmnd *srb)
return USB_STOR_TRANSPORT_ERROR;
}
- if (info->SD_Status.HiCapacity)
+ if (info->SD_Status & SD_HiCapacity)
bnByte = bn;
/* set up the command wrapper */
@@ -1447,7 +1444,7 @@ static int ms_scsi_test_unit_ready(struct us_data *us, struct scsi_cmnd *srb)
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
/* pr_info("MS_SCSI_Test_Unit_Ready\n"); */
- if (info->MS_Status.Insert && info->MS_Status.Ready) {
+ if ((info->MS_Status & MS_Insert) && (info->MS_Status & MS_Ready)) {
return USB_STOR_TRANSPORT_GOOD;
} else {
ene_ms_init(us);
@@ -1480,7 +1477,7 @@ static int ms_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb)
0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
- if (info->MS_Status.WtP)
+ if (info->MS_Status & MS_WtP)
usb_stor_set_xfer_buf(mediaWP, 12, srb);
else
usb_stor_set_xfer_buf(mediaNoWP, 12, srb);
@@ -1499,7 +1496,7 @@ static int ms_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
usb_stor_dbg(us, "ms_scsi_read_capacity\n");
bl_len = 0x200;
- if (info->MS_Status.IsMSPro)
+ if (info->MS_Status & MS_IsMSPro)
bl_num = info->MSP_TotalBlock - 1;
else
bl_num = info->MS_Lib.NumberOfLogBlock * info->MS_Lib.blockSize * 2 - 1;
@@ -1654,7 +1651,7 @@ static int ms_scsi_read(struct us_data *us, struct scsi_cmnd *srb)
if (bn > info->bl_num)
return USB_STOR_TRANSPORT_ERROR;
- if (info->MS_Status.IsMSPro) {
+ if (info->MS_Status & MS_IsMSPro) {
result = ene_load_bincode(us, MSP_RW_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
usb_stor_dbg(us, "Load MPS RW pattern Fail !!\n");
@@ -1755,7 +1752,7 @@ static int ms_scsi_write(struct us_data *us, struct scsi_cmnd *srb)
if (bn > info->bl_num)
return USB_STOR_TRANSPORT_ERROR;
- if (info->MS_Status.IsMSPro) {
+ if (info->MS_Status & MS_IsMSPro) {
result = ene_load_bincode(us, MSP_RW_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
pr_info("Load MSP RW pattern Fail !!\n");
@@ -1863,12 +1860,12 @@ static int ene_get_card_status(struct us_data *us, u8 *buf)
tmpreg = (u16) reg4b;
reg4b = *(u32 *)(&buf[0x14]);
- if (info->SD_Status.HiCapacity && !info->SD_Status.IsMMC)
+ if ((info->SD_Status & SD_HiCapacity) && !(info->SD_Status & SD_IsMMC))
info->HC_C_SIZE = (reg4b >> 8) & 0x3fffff;
info->SD_C_SIZE = ((tmpreg & 0x03) << 10) | (u16)(reg4b >> 22);
info->SD_C_SIZE_MULT = (u8)(reg4b >> 7) & 0x07;
- if (info->SD_Status.HiCapacity && info->SD_Status.IsMMC)
+ if ((info->SD_Status & SD_HiCapacity) && (info->SD_Status & SD_IsMMC))
info->HC_C_SIZE = *(u32 *)(&buf[0x100]);
if (info->SD_READ_BL_LEN > SD_BLOCK_LEN) {
@@ -2080,6 +2077,7 @@ static int ene_ms_init(struct us_data *us)
u16 MSP_BlockSize, MSP_UserAreaBlocks;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
u8 *bbuf = info->bbuf;
+ unsigned int s;
printk(KERN_INFO "transport --- ENE_MSInit\n");
@@ -2104,15 +2102,16 @@ static int ene_ms_init(struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}
/* the same part to test ENE */
- info->MS_Status = *(struct MS_STATUS *) bbuf;
-
- if (info->MS_Status.Insert && info->MS_Status.Ready) {
- printk(KERN_INFO "Insert = %x\n", info->MS_Status.Insert);
- printk(KERN_INFO "Ready = %x\n", info->MS_Status.Ready);
- printk(KERN_INFO "IsMSPro = %x\n", info->MS_Status.IsMSPro);
- printk(KERN_INFO "IsMSPHG = %x\n", info->MS_Status.IsMSPHG);
- printk(KERN_INFO "WtP= %x\n", info->MS_Status.WtP);
- if (info->MS_Status.IsMSPro) {
+ info->MS_Status = bbuf[0];
+
+ s = info->MS_Status;
+ if ((s & MS_Insert) && (s & MS_Ready)) {
+ printk(KERN_INFO "Insert = %x\n", !!(s & MS_Insert));
+ printk(KERN_INFO "Ready = %x\n", !!(s & MS_Ready));
+ printk(KERN_INFO "IsMSPro = %x\n", !!(s & MS_IsMSPro));
+ printk(KERN_INFO "IsMSPHG = %x\n", !!(s & MS_IsMSPHG));
+ printk(KERN_INFO "WtP= %x\n", !!(s & MS_WtP));
+ if (s & MS_IsMSPro) {
MSP_BlockSize = (bbuf[6] << 8) | bbuf[7];
MSP_UserAreaBlocks = (bbuf[10] << 8) | bbuf[11];
info->MSP_TotalBlock = MSP_BlockSize * MSP_UserAreaBlocks;
@@ -2173,17 +2172,17 @@ static int ene_sd_init(struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}
- info->SD_Status = *(struct SD_STATUS *) bbuf;
- if (info->SD_Status.Insert && info->SD_Status.Ready) {
- struct SD_STATUS *s = &info->SD_Status;
+ info->SD_Status = bbuf[0];
+ if ((info->SD_Status & SD_Insert) && (info->SD_Status & SD_Ready)) {
+ unsigned int s = info->SD_Status;
ene_get_card_status(us, bbuf);
- usb_stor_dbg(us, "Insert = %x\n", s->Insert);
- usb_stor_dbg(us, "Ready = %x\n", s->Ready);
- usb_stor_dbg(us, "IsMMC = %x\n", s->IsMMC);
- usb_stor_dbg(us, "HiCapacity = %x\n", s->HiCapacity);
- usb_stor_dbg(us, "HiSpeed = %x\n", s->HiSpeed);
- usb_stor_dbg(us, "WtP = %x\n", s->WtP);
+ usb_stor_dbg(us, "Insert = %x\n", !!(s & SD_Insert));
+ usb_stor_dbg(us, "Ready = %x\n", !!(s & SD_Ready));
+ usb_stor_dbg(us, "IsMMC = %x\n", !!(s & SD_IsMMC));
+ usb_stor_dbg(us, "HiCapacity = %x\n", !!(s & SD_HiCapacity));
+ usb_stor_dbg(us, "HiSpeed = %x\n", !!(s & SD_HiSpeed));
+ usb_stor_dbg(us, "WtP = %x\n", !!(s & SD_WtP));
} else {
usb_stor_dbg(us, "SD Card Not Ready --- %x\n", bbuf[0]);
return USB_STOR_TRANSPORT_ERROR;
@@ -2205,14 +2204,14 @@ static int ene_init(struct us_data *us)
misc_reg03 = bbuf[0];
if (misc_reg03 & 0x01) {
- if (!info->SD_Status.Ready) {
+ if (!(info->SD_Status & SD_Ready)) {
result = ene_sd_init(us);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
}
}
if (misc_reg03 & 0x02) {
- if (!info->MS_Status.Ready) {
+ if (!(info->MS_Status & MS_Ready)) {
result = ene_ms_init(us);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
@@ -2302,14 +2301,14 @@ static int ene_transport(struct scsi_cmnd *srb, struct us_data *us)
/*US_DEBUG(usb_stor_show_command(us, srb)); */
scsi_set_resid(srb, 0);
- if (unlikely(!(info->SD_Status.Ready || info->MS_Status.Ready)))
+ if (unlikely(!(info->SD_Status & SD_Ready) || (info->MS_Status & MS_Ready)))
result = ene_init(us);
if (result == USB_STOR_XFER_GOOD) {
result = USB_STOR_TRANSPORT_ERROR;
- if (info->SD_Status.Ready)
+ if (info->SD_Status & SD_Ready)
result = sd_scsi_irp(us, srb);
- if (info->MS_Status.Ready)
+ if (info->MS_Status & MS_Ready)
result = ms_scsi_irp(us, srb);
}
return result;
@@ -2373,7 +2372,6 @@ static int ene_ub6250_probe(struct usb_interface *intf,
static int ene_ub6250_resume(struct usb_interface *iface)
{
- u8 tmp = 0;
struct us_data *us = usb_get_intfdata(iface);
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
@@ -2385,17 +2383,16 @@ static int ene_ub6250_resume(struct usb_interface *iface)
mutex_unlock(&us->dev_mutex);
info->Power_IsResum = true;
- /*info->SD_Status.Ready = 0; */
- info->SD_Status = *(struct SD_STATUS *)&tmp;
- info->MS_Status = *(struct MS_STATUS *)&tmp;
- info->SM_Status = *(struct SM_STATUS *)&tmp;
+ /* info->SD_Status &= ~SD_Ready; */
+ info->SD_Status = 0;
+ info->MS_Status = 0;
+ info->SM_Status = 0;
return 0;
}
static int ene_ub6250_reset_resume(struct usb_interface *iface)
{
- u8 tmp = 0;
struct us_data *us = usb_get_intfdata(iface);
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
@@ -2407,10 +2404,10 @@ static int ene_ub6250_reset_resume(struct usb_interface *iface)
* the device
*/
info->Power_IsResum = true;
- /*info->SD_Status.Ready = 0; */
- info->SD_Status = *(struct SD_STATUS *)&tmp;
- info->MS_Status = *(struct MS_STATUS *)&tmp;
- info->SM_Status = *(struct SM_STATUS *)&tmp;
+ /* info->SD_Status &= ~SD_Ready; */
+ info->SD_Status = 0;
+ info->MS_Status = 0;
+ info->SM_Status = 0;
return 0;
}
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index d955761fce6f..d9d69637d614 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -377,7 +377,7 @@ static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
buf = kmalloc(len, GFP_NOIO);
if (buf == NULL)
- return USB_STOR_TRANSPORT_ERROR;
+ return -ENOMEM;
usb_stor_dbg(us, "addr = 0x%x, len = %d\n", addr, len);
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index e282e8174a5d..d054702c8fbe 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -484,16 +484,18 @@ static int vhost_vsock_start(struct vhost_vsock *vsock)
return ret;
}
-static int vhost_vsock_stop(struct vhost_vsock *vsock)
+static int vhost_vsock_stop(struct vhost_vsock *vsock, bool check_owner)
{
size_t i;
- int ret;
+ int ret = 0;
mutex_lock(&vsock->dev.mutex);
- ret = vhost_dev_check_owner(&vsock->dev);
- if (ret)
- goto err;
+ if (check_owner) {
+ ret = vhost_dev_check_owner(&vsock->dev);
+ if (ret)
+ goto err;
+ }
for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) {
struct vhost_virtqueue *vq = &vsock->vqs[i];
@@ -611,7 +613,12 @@ static int vhost_vsock_dev_release(struct inode *inode, struct file *file)
* inefficient. Room for improvement here. */
vsock_for_each_connected_socket(vhost_vsock_reset_orphans);
- vhost_vsock_stop(vsock);
+ /* Don't check the owner, because we are in the release path, so we
+ * need to stop the vsock device in any case.
+ * vhost_vsock_stop() can not fail in this case, so we don't need to
+ * check the return code.
+ */
+ vhost_vsock_stop(vsock, false);
vhost_vsock_flush(vsock);
vhost_dev_stop(&vsock->dev);
@@ -709,7 +716,7 @@ static long vhost_vsock_dev_ioctl(struct file *f, unsigned int ioctl,
if (start)
return vhost_vsock_start(vsock);
else
- return vhost_vsock_stop(vsock);
+ return vhost_vsock_stop(vsock, true);
case VHOST_GET_FEATURES:
features = VHOST_VSOCK_FEATURES;
if (copy_to_user(argp, &features, sizeof(features)))
diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c
index fcd2dd670a65..770f77055682 100644
--- a/drivers/video/fbdev/atafb.c
+++ b/drivers/video/fbdev/atafb.c
@@ -1713,9 +1713,9 @@ static int falcon_setcolreg(unsigned int regno, unsigned int red,
((blue & 0xfc00) >> 8));
if (regno < 16) {
shifter_tt.color_reg[regno] =
- (((red & 0xe000) >> 13) | ((red & 0x1000) >> 12) << 8) |
- (((green & 0xe000) >> 13) | ((green & 0x1000) >> 12) << 4) |
- ((blue & 0xe000) >> 13) | ((blue & 0x1000) >> 12);
+ ((((red & 0xe000) >> 13) | ((red & 0x1000) >> 12)) << 8) |
+ ((((green & 0xe000) >> 13) | ((green & 0x1000) >> 12)) << 4) |
+ ((blue & 0xe000) >> 13) | ((blue & 0x1000) >> 12);
((u32 *)info->pseudo_palette)[regno] = ((red & 0xf800) |
((green & 0xfc00) >> 5) |
((blue & 0xf800) >> 11));
@@ -2001,9 +2001,9 @@ static int stste_setcolreg(unsigned int regno, unsigned int red,
green >>= 12;
if (ATARIHW_PRESENT(EXTD_SHIFTER))
shifter_tt.color_reg[regno] =
- (((red & 0xe) >> 1) | ((red & 1) << 3) << 8) |
- (((green & 0xe) >> 1) | ((green & 1) << 3) << 4) |
- ((blue & 0xe) >> 1) | ((blue & 1) << 3);
+ ((((red & 0xe) >> 1) | ((red & 1) << 3)) << 8) |
+ ((((green & 0xe) >> 1) | ((green & 1) << 3)) << 4) |
+ ((blue & 0xe) >> 1) | ((blue & 1) << 3);
else
shifter_tt.color_reg[regno] =
((red & 0xe) << 7) |
diff --git a/drivers/video/fbdev/cirrusfb.c b/drivers/video/fbdev/cirrusfb.c
index d992aa5eb3f0..a8f4967de798 100644
--- a/drivers/video/fbdev/cirrusfb.c
+++ b/drivers/video/fbdev/cirrusfb.c
@@ -470,7 +470,7 @@ static int cirrusfb_check_mclk(struct fb_info *info, long freq)
return 0;
}
-static int cirrusfb_check_pixclock(const struct fb_var_screeninfo *var,
+static int cirrusfb_check_pixclock(struct fb_var_screeninfo *var,
struct fb_info *info)
{
long freq;
@@ -479,9 +479,7 @@ static int cirrusfb_check_pixclock(const struct fb_var_screeninfo *var,
unsigned maxclockidx = var->bits_per_pixel >> 3;
/* convert from ps to kHz */
- freq = PICOS2KHZ(var->pixclock);
-
- dev_dbg(info->device, "desired pixclock: %ld kHz\n", freq);
+ freq = PICOS2KHZ(var->pixclock ? : 1);
maxclock = cirrusfb_board_info[cinfo->btype].maxclock[maxclockidx];
cinfo->multiplexing = 0;
@@ -489,11 +487,13 @@ static int cirrusfb_check_pixclock(const struct fb_var_screeninfo *var,
/* If the frequency is greater than we can support, we might be able
* to use multiplexing for the video mode */
if (freq > maxclock) {
- dev_err(info->device,
- "Frequency greater than maxclock (%ld kHz)\n",
- maxclock);
- return -EINVAL;
+ var->pixclock = KHZ2PICOS(maxclock);
+
+ while ((freq = PICOS2KHZ(var->pixclock)) > maxclock)
+ var->pixclock++;
}
+ dev_dbg(info->device, "desired pixclock: %ld kHz\n", freq);
+
/*
* Additional constraint: 8bpp uses DAC clock doubling to allow maximum
* pixel clock
diff --git a/drivers/video/fbdev/core/fbcvt.c b/drivers/video/fbdev/core/fbcvt.c
index 55d2bd0ce5c0..64843464c661 100644
--- a/drivers/video/fbdev/core/fbcvt.c
+++ b/drivers/video/fbdev/core/fbcvt.c
@@ -214,9 +214,11 @@ static u32 fb_cvt_aspect_ratio(struct fb_cvt_data *cvt)
static void fb_cvt_print_name(struct fb_cvt_data *cvt)
{
u32 pixcount, pixcount_mod;
- int cnt = 255, offset = 0, read = 0;
- u8 *buf = kzalloc(256, GFP_KERNEL);
+ int size = 256;
+ int off = 0;
+ u8 *buf;
+ buf = kzalloc(size, GFP_KERNEL);
if (!buf)
return;
@@ -224,43 +226,30 @@ static void fb_cvt_print_name(struct fb_cvt_data *cvt)
pixcount_mod = (cvt->xres * (cvt->yres/cvt->interlace)) % 1000000;
pixcount_mod /= 1000;
- read = snprintf(buf+offset, cnt, "fbcvt: %dx%d@%d: CVT Name - ",
- cvt->xres, cvt->yres, cvt->refresh);
- offset += read;
- cnt -= read;
+ off += scnprintf(buf + off, size - off, "fbcvt: %dx%d@%d: CVT Name - ",
+ cvt->xres, cvt->yres, cvt->refresh);
- if (cvt->status)
- snprintf(buf+offset, cnt, "Not a CVT standard - %d.%03d Mega "
- "Pixel Image\n", pixcount, pixcount_mod);
- else {
- if (pixcount) {
- read = snprintf(buf+offset, cnt, "%d", pixcount);
- cnt -= read;
- offset += read;
- }
+ if (cvt->status) {
+ off += scnprintf(buf + off, size - off,
+ "Not a CVT standard - %d.%03d Mega Pixel Image\n",
+ pixcount, pixcount_mod);
+ } else {
+ if (pixcount)
+ off += scnprintf(buf + off, size - off, "%d", pixcount);
- read = snprintf(buf+offset, cnt, ".%03dM", pixcount_mod);
- cnt -= read;
- offset += read;
+ off += scnprintf(buf + off, size - off, ".%03dM", pixcount_mod);
if (cvt->aspect_ratio == 0)
- read = snprintf(buf+offset, cnt, "3");
+ off += scnprintf(buf + off, size - off, "3");
else if (cvt->aspect_ratio == 3)
- read = snprintf(buf+offset, cnt, "4");
+ off += scnprintf(buf + off, size - off, "4");
else if (cvt->aspect_ratio == 1 || cvt->aspect_ratio == 4)
- read = snprintf(buf+offset, cnt, "9");
+ off += scnprintf(buf + off, size - off, "9");
else if (cvt->aspect_ratio == 2)
- read = snprintf(buf+offset, cnt, "A");
- else
- read = 0;
- cnt -= read;
- offset += read;
-
- if (cvt->flags & FB_CVT_FLAG_REDUCED_BLANK) {
- read = snprintf(buf+offset, cnt, "-R");
- cnt -= read;
- offset += read;
- }
+ off += scnprintf(buf + off, size - off, "A");
+
+ if (cvt->flags & FB_CVT_FLAG_REDUCED_BLANK)
+ off += scnprintf(buf + off, size - off, "-R");
}
printk(KERN_INFO "%s\n", buf);
diff --git a/drivers/video/fbdev/nvidia/nv_i2c.c b/drivers/video/fbdev/nvidia/nv_i2c.c
index d7994a173245..0b48965a6420 100644
--- a/drivers/video/fbdev/nvidia/nv_i2c.c
+++ b/drivers/video/fbdev/nvidia/nv_i2c.c
@@ -86,7 +86,7 @@ static int nvidia_setup_i2c_bus(struct nvidia_i2c_chan *chan, const char *name,
{
int rc;
- strcpy(chan->adapter.name, name);
+ strscpy(chan->adapter.name, name, sizeof(chan->adapter.name));
chan->adapter.owner = THIS_MODULE;
chan->adapter.class = i2c_class;
chan->adapter.algo_data = &chan->algo;
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/connector-dvi.c b/drivers/video/fbdev/omap2/omapfb/displays/connector-dvi.c
index 06e1db34541e..41b0db0cc047 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/connector-dvi.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/connector-dvi.c
@@ -254,6 +254,7 @@ static int dvic_probe_of(struct platform_device *pdev)
adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);
if (adapter_node) {
adapter = of_get_i2c_adapter_by_node(adapter_node);
+ of_node_put(adapter_node);
if (adapter == NULL) {
dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");
omap_dss_put_device(ddata->in);
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
index 8b810696a42b..6a8f0f0fa601 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
@@ -413,7 +413,7 @@ static ssize_t dsicm_num_errors_show(struct device *dev,
if (r)
return r;
- return snprintf(buf, PAGE_SIZE, "%d\n", errors);
+ return sysfs_emit(buf, "%d\n", errors);
}
static ssize_t dsicm_hw_revision_show(struct device *dev,
@@ -444,7 +444,7 @@ static ssize_t dsicm_hw_revision_show(struct device *dev,
if (r)
return r;
- return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3);
+ return sysfs_emit(buf, "%02x.%02x.%02x\n", id1, id2, id3);
}
static ssize_t dsicm_store_ulps(struct device *dev,
@@ -494,7 +494,7 @@ static ssize_t dsicm_show_ulps(struct device *dev,
t = ddata->ulps_enabled;
mutex_unlock(&ddata->lock);
- return snprintf(buf, PAGE_SIZE, "%u\n", t);
+ return sysfs_emit(buf, "%u\n", t);
}
static ssize_t dsicm_store_ulps_timeout(struct device *dev,
@@ -541,7 +541,7 @@ static ssize_t dsicm_show_ulps_timeout(struct device *dev,
t = ddata->ulps_timeout;
mutex_unlock(&ddata->lock);
- return snprintf(buf, PAGE_SIZE, "%u\n", t);
+ return sysfs_emit(buf, "%u\n", t);
}
static DEVICE_ATTR(num_dsi_errors, S_IRUGO, dsicm_num_errors_show, NULL);
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
index 468560a6daae..0a1a82c68680 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
@@ -487,7 +487,7 @@ static ssize_t show_cabc_available_modes(struct device *dev,
int i;
if (!ddata->has_cabc)
- return snprintf(buf, PAGE_SIZE, "%s\n", cabc_modes[0]);
+ return sysfs_emit(buf, "%s\n", cabc_modes[0]);
for (i = 0, len = 0;
len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++)
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
index 51e628b85f4a..2b8b6b5dc1aa 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
@@ -173,7 +173,7 @@ static ssize_t tpo_td043_vmirror_show(struct device *dev,
{
struct panel_drv_data *ddata = dev_get_drvdata(dev);
- return snprintf(buf, PAGE_SIZE, "%d\n", ddata->vmirror);
+ return sysfs_emit(buf, "%d\n", ddata->vmirror);
}
static ssize_t tpo_td043_vmirror_store(struct device *dev,
@@ -203,7 +203,7 @@ static ssize_t tpo_td043_mode_show(struct device *dev,
{
struct panel_drv_data *ddata = dev_get_drvdata(dev);
- return snprintf(buf, PAGE_SIZE, "%d\n", ddata->mode);
+ return sysfs_emit(buf, "%d\n", ddata->mode);
}
static ssize_t tpo_td043_mode_store(struct device *dev,
diff --git a/drivers/video/fbdev/sm712fb.c b/drivers/video/fbdev/sm712fb.c
index 17efcdd4dc99..620f3152213a 100644
--- a/drivers/video/fbdev/sm712fb.c
+++ b/drivers/video/fbdev/sm712fb.c
@@ -1046,7 +1046,7 @@ static ssize_t smtcfb_read(struct fb_info *info, char __user *buf,
if (count + p > total_size)
count = total_size - p;
- buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
+ buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@@ -1058,25 +1058,14 @@ static ssize_t smtcfb_read(struct fb_info *info, char __user *buf,
while (count) {
c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
dst = buffer;
- for (i = c >> 2; i--;) {
- *dst = fb_readl(src++);
- *dst = big_swap(*dst);
+ for (i = (c + 3) >> 2; i--;) {
+ u32 val;
+
+ val = fb_readl(src);
+ *dst = big_swap(val);
+ src++;
dst++;
}
- if (c & 3) {
- u8 *dst8 = (u8 *)dst;
- u8 __iomem *src8 = (u8 __iomem *)src;
-
- for (i = c & 3; i--;) {
- if (i & 1) {
- *dst8++ = fb_readb(++src8);
- } else {
- *dst8++ = fb_readb(--src8);
- src8 += 2;
- }
- }
- src = (u32 __iomem *)src8;
- }
if (copy_to_user(buf, buffer, c)) {
err = -EFAULT;
@@ -1129,7 +1118,7 @@ static ssize_t smtcfb_write(struct fb_info *info, const char __user *buf,
count = total_size - p;
}
- buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
+ buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@@ -1147,24 +1136,11 @@ static ssize_t smtcfb_write(struct fb_info *info, const char __user *buf,
break;
}
- for (i = c >> 2; i--;) {
- fb_writel(big_swap(*src), dst++);
+ for (i = (c + 3) >> 2; i--;) {
+ fb_writel(big_swap(*src), dst);
+ dst++;
src++;
}
- if (c & 3) {
- u8 *src8 = (u8 *)src;
- u8 __iomem *dst8 = (u8 __iomem *)dst;
-
- for (i = c & 3; i--;) {
- if (i & 1) {
- fb_writeb(*src8++, ++dst8);
- } else {
- fb_writeb(*src8++, --dst8);
- dst8 += 2;
- }
- }
- dst = (u32 __iomem *)dst8;
- }
*ppos += c;
buf += c;
diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
index ec2e7e353685..aa387c5188e7 100644
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -1671,6 +1671,7 @@ static int ufx_usb_probe(struct usb_interface *interface,
info->par = dev;
info->pseudo_palette = dev->pseudo_palette;
info->fbops = &ufx_ops;
+ INIT_LIST_HEAD(&info->modelist);
retval = fb_alloc_cmap(&info->cmap, 256, 0);
if (retval < 0) {
@@ -1681,8 +1682,6 @@ static int ufx_usb_probe(struct usb_interface *interface,
INIT_DELAYED_WORK(&dev->free_framebuffer_work,
ufx_free_framebuffer_work);
- INIT_LIST_HEAD(&info->modelist);
-
retval = ufx_reg_read(dev, 0x3000, &id_rev);
check_warn_goto_error(retval, "error %d reading 0x3000 register from device", retval);
dev_dbg(dev->gdev, "ID_REV register value 0x%08x", id_rev);
diff --git a/drivers/video/fbdev/w100fb.c b/drivers/video/fbdev/w100fb.c
index 7bd4c27cfb14..b3b17b6adb7e 100644
--- a/drivers/video/fbdev/w100fb.c
+++ b/drivers/video/fbdev/w100fb.c
@@ -772,12 +772,18 @@ int w100fb_probe(struct platform_device *pdev)
fb_dealloc_cmap(&info->cmap);
kfree(info->pseudo_palette);
}
- if (remapped_fbuf != NULL)
+ if (remapped_fbuf != NULL) {
iounmap(remapped_fbuf);
- if (remapped_regs != NULL)
+ remapped_fbuf = NULL;
+ }
+ if (remapped_regs != NULL) {
iounmap(remapped_regs);
- if (remapped_base != NULL)
+ remapped_regs = NULL;
+ }
+ if (remapped_base != NULL) {
iounmap(remapped_base);
+ remapped_base = NULL;
+ }
if (info)
framebuffer_release(info);
return err;
@@ -802,8 +808,11 @@ static int w100fb_remove(struct platform_device *pdev)
fb_dealloc_cmap(&info->cmap);
iounmap(remapped_base);
+ remapped_base = NULL;
iounmap(remapped_regs);
+ remapped_regs = NULL;
iounmap(remapped_fbuf);
+ remapped_fbuf = NULL;
framebuffer_release(info);
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index 82611f197b0a..7d0e09867bc7 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -589,16 +589,20 @@ static ssize_t w1_seq_show(struct device *device,
if (sl->reg_num.id == reg_num->id)
seq = i;
+ if (w1_reset_bus(sl->master))
+ goto error;
+
+ /* Put the device into chain DONE state */
+ w1_write_8(sl->master, W1_MATCH_ROM);
+ w1_write_block(sl->master, (u8 *)&rn, 8);
w1_write_8(sl->master, W1_42_CHAIN);
w1_write_8(sl->master, W1_42_CHAIN_DONE);
w1_write_8(sl->master, W1_42_CHAIN_DONE_INV);
- w1_read_block(sl->master, &ack, sizeof(ack));
/* check for acknowledgment */
ack = w1_read_8(sl->master);
if (ack != W1_42_SUCCESS_CONFIRM_BYTE)
goto error;
-
}
/* Exit from CHAIN state */
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index 7a47c4c9fb1b..24f8900eccad 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -166,20 +166,14 @@ static int add_grefs(struct ioctl_gntalloc_alloc_gref *op,
__del_gref(gref);
}
- /* It's possible for the target domain to map the just-allocated grant
- * references by blindly guessing their IDs; if this is done, then
- * __del_gref will leave them in the queue_gref list. They need to be
- * added to the global list so that we can free them when they are no
- * longer referenced.
- */
- if (unlikely(!list_empty(&queue_gref)))
- list_splice_tail(&queue_gref, &gref_list);
mutex_unlock(&gref_mutex);
return rc;
}
static void __del_gref(struct gntalloc_gref *gref)
{
+ unsigned long addr;
+
if (gref->notify.flags & UNMAP_NOTIFY_CLEAR_BYTE) {
uint8_t *tmp = kmap(gref->page);
tmp[gref->notify.pgoff] = 0;
@@ -193,21 +187,16 @@ static void __del_gref(struct gntalloc_gref *gref)
gref->notify.flags = 0;
if (gref->gref_id) {
- if (gnttab_query_foreign_access(gref->gref_id))
- return;
-
- if (!gnttab_end_foreign_access_ref(gref->gref_id, 0))
- return;
-
- gnttab_free_grant_reference(gref->gref_id);
+ if (gref->page) {
+ addr = (unsigned long)page_to_virt(gref->page);
+ gnttab_end_foreign_access(gref->gref_id, 0, addr);
+ } else
+ gnttab_free_grant_reference(gref->gref_id);
}
gref_size--;
list_del(&gref->next_gref);
- if (gref->page)
- __free_page(gref->page);
-
kfree(gref);
}
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 775d4195966c..02754b4923e9 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -114,12 +114,9 @@ struct gnttab_ops {
*/
unsigned long (*end_foreign_transfer_ref)(grant_ref_t ref);
/*
- * Query the status of a grant entry. Ref parameter is reference of
- * queried grant entry, return value is the status of queried entry.
- * Detailed status(writing/reading) can be gotten from the return value
- * by bit operations.
+ * Read the frame number related to a given grant reference.
*/
- int (*query_foreign_access)(grant_ref_t ref);
+ unsigned long (*read_frame)(grant_ref_t ref);
};
struct unmap_refs_callback_data {
@@ -254,17 +251,6 @@ int gnttab_grant_foreign_access(domid_t domid, unsigned long frame,
}
EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access);
-static int gnttab_query_foreign_access_v1(grant_ref_t ref)
-{
- return gnttab_shared.v1[ref].flags & (GTF_reading|GTF_writing);
-}
-
-int gnttab_query_foreign_access(grant_ref_t ref)
-{
- return gnttab_interface->query_foreign_access(ref);
-}
-EXPORT_SYMBOL_GPL(gnttab_query_foreign_access);
-
static int gnttab_end_foreign_access_ref_v1(grant_ref_t ref, int readonly)
{
u16 flags, nflags;
@@ -295,6 +281,11 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly)
}
EXPORT_SYMBOL_GPL(gnttab_end_foreign_access_ref);
+static unsigned long gnttab_read_frame_v1(grant_ref_t ref)
+{
+ return gnttab_shared.v1[ref].frame;
+}
+
struct deferred_entry {
struct list_head list;
grant_ref_t ref;
@@ -324,12 +315,9 @@ static void gnttab_handle_deferred(unsigned long unused)
spin_unlock_irqrestore(&gnttab_list_lock, flags);
if (_gnttab_end_foreign_access_ref(entry->ref, entry->ro)) {
put_free_entry(entry->ref);
- if (entry->page) {
- pr_debug("freeing g.e. %#x (pfn %#lx)\n",
- entry->ref, page_to_pfn(entry->page));
- put_page(entry->page);
- } else
- pr_info("freeing g.e. %#x\n", entry->ref);
+ pr_debug("freeing g.e. %#x (pfn %#lx)\n",
+ entry->ref, page_to_pfn(entry->page));
+ put_page(entry->page);
kfree(entry);
entry = NULL;
} else {
@@ -354,9 +342,18 @@ static void gnttab_handle_deferred(unsigned long unused)
static void gnttab_add_deferred(grant_ref_t ref, bool readonly,
struct page *page)
{
- struct deferred_entry *entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
+ struct deferred_entry *entry;
+ gfp_t gfp = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL;
const char *what = KERN_WARNING "leaking";
+ entry = kmalloc(sizeof(*entry), gfp);
+ if (!page) {
+ unsigned long gfn = gnttab_interface->read_frame(ref);
+
+ page = pfn_to_page(gfn_to_pfn(gfn));
+ get_page(page);
+ }
+
if (entry) {
unsigned long flags;
@@ -377,11 +374,21 @@ static void gnttab_add_deferred(grant_ref_t ref, bool readonly,
what, ref, page ? page_to_pfn(page) : -1);
}
+int gnttab_try_end_foreign_access(grant_ref_t ref)
+{
+ int ret = _gnttab_end_foreign_access_ref(ref, 0);
+
+ if (ret)
+ put_free_entry(ref);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(gnttab_try_end_foreign_access);
+
void gnttab_end_foreign_access(grant_ref_t ref, int readonly,
unsigned long page)
{
- if (gnttab_end_foreign_access_ref(ref, readonly)) {
- put_free_entry(ref);
+ if (gnttab_try_end_foreign_access(ref)) {
if (page != 0)
put_page(virt_to_page(page));
} else
@@ -1018,7 +1025,7 @@ static const struct gnttab_ops gnttab_v1_ops = {
.update_entry = gnttab_update_entry_v1,
.end_foreign_access_ref = gnttab_end_foreign_access_ref_v1,
.end_foreign_transfer_ref = gnttab_end_foreign_transfer_ref_v1,
- .query_foreign_access = gnttab_query_foreign_access_v1,
+ .read_frame = gnttab_read_frame_v1,
};
static void gnttab_request_version(void)
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index 8bbd887ca422..5ee38e939165 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -387,7 +387,14 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr,
unsigned int nr_pages, grant_ref_t *grefs)
{
int err;
- int i, j;
+ unsigned int i;
+ grant_ref_t gref_head;
+
+ err = gnttab_alloc_grant_references(nr_pages, &gref_head);
+ if (err) {
+ xenbus_dev_fatal(dev, err, "granting access to ring page");
+ return err;
+ }
for (i = 0; i < nr_pages; i++) {
unsigned long gfn;
@@ -397,23 +404,14 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr,
else
gfn = virt_to_gfn(vaddr);
- err = gnttab_grant_foreign_access(dev->otherend_id, gfn, 0);
- if (err < 0) {
- xenbus_dev_fatal(dev, err,
- "granting access to ring page");
- goto fail;
- }
- grefs[i] = err;
+ grefs[i] = gnttab_claim_grant_reference(&gref_head);
+ gnttab_grant_foreign_access_ref(grefs[i], dev->otherend_id,
+ gfn, 0);
vaddr = vaddr + XEN_PAGE_SIZE;
}
return 0;
-
-fail:
- for (j = 0; j < i; j++)
- gnttab_end_foreign_access_ref(grefs[j], 0);
- return err;
}
EXPORT_SYMBOL_GPL(xenbus_grant_ring);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index b5bff1e760a3..8ded1d894100 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -8457,6 +8457,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
out_free_delayed:
btrfs_free_delayed_extent_op(extent_op);
out_free_buf:
+ btrfs_tree_unlock(buf);
free_extent_buffer(buf);
out_free_reserved:
btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 0);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 375ccd209206..b85c283ad08b 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -746,6 +746,7 @@ cifs_do_mount(struct file_system_type *fs_type,
out_super:
deactivate_locked_super(sb);
+ return root;
out:
cifs_cleanup_volume_info(volume_info);
return root;
@@ -765,7 +766,7 @@ cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
ssize_t rc;
struct inode *inode = file_inode(iocb->ki_filp);
- if (iocb->ki_filp->f_flags & O_DIRECT)
+ if (iocb->ki_flags & IOCB_DIRECT)
return cifs_user_readv(iocb, iter);
rc = cifs_revalidate_mapping(inode);
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 38d26cbcad07..0c49e2aa7ea4 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -119,6 +119,9 @@ parse_mf_symlink(const u8 *buf, unsigned int buf_len, unsigned int *_link_len,
if (rc != 1)
return -EINVAL;
+ if (link_len > CIFS_MF_SYMLINK_LINK_MAXLEN)
+ return -EINVAL;
+
rc = symlink_hash(link_len, link_str, md5_hash);
if (rc) {
cifs_dbg(FYI, "%s: MD5 hash failure: %d\n", __func__, rc);
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index c875f246cb0e..ccb49caed502 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -50,6 +50,14 @@ DECLARE_RWSEM(configfs_rename_sem);
*/
DEFINE_SPINLOCK(configfs_dirent_lock);
+/*
+ * All of link_obj/unlink_obj/link_group/unlink_group require that
+ * subsys->su_mutex is held.
+ * But parent configfs_subsystem is NULL when config_item is root.
+ * Use this mutex when config_item is root.
+ */
+static DEFINE_MUTEX(configfs_subsystem_mutex);
+
static void configfs_d_iput(struct dentry * dentry,
struct inode * inode)
{
@@ -1937,7 +1945,9 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
group->cg_item.ci_name = group->cg_item.ci_namebuf;
sd = root->d_fsdata;
+ mutex_lock(&configfs_subsystem_mutex);
link_group(to_config_group(sd->s_element), group);
+ mutex_unlock(&configfs_subsystem_mutex);
inode_lock_nested(d_inode(root), I_MUTEX_PARENT);
@@ -1962,7 +1972,9 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
inode_unlock(d_inode(root));
if (err) {
+ mutex_lock(&configfs_subsystem_mutex);
unlink_group(group);
+ mutex_unlock(&configfs_subsystem_mutex);
configfs_release_fs();
}
put_fragment(frag);
@@ -2008,7 +2020,9 @@ void configfs_unregister_subsystem(struct configfs_subsystem *subsys)
dput(dentry);
+ mutex_lock(&configfs_subsystem_mutex);
unlink_group(group);
+ mutex_unlock(&configfs_subsystem_mutex);
configfs_release_fs();
}
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 186912c9bf56..5ca1f73958b0 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -743,8 +743,12 @@ static loff_t ext2_max_size(int bits)
res += 1LL << (bits-2);
res += 1LL << (2*(bits-2));
res += 1LL << (3*(bits-2));
+ /* Compute how many metadata blocks are needed */
+ meta_blocks = 1;
+ meta_blocks += 1 + ppb;
+ meta_blocks += 1 + ppb + ppb * ppb;
/* Does block tree limit file size? */
- if (res < upper_limit)
+ if (res + meta_blocks <= upper_limit)
goto check_lfs;
res = upper_limit;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 79c067f74253..754b33828853 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2048,6 +2048,15 @@ static int ext4_writepage(struct page *page,
else
len = PAGE_SIZE;
+ /* Should never happen but for bugs in other kernel subsystems */
+ if (!page_has_buffers(page)) {
+ ext4_warning_inode(inode,
+ "page %lu does not have buffers attached", page->index);
+ ClearPageDirty(page);
+ unlock_page(page);
+ return 0;
+ }
+
page_bufs = page_buffers(page);
/*
* We cannot do block allocation or other extent handling in this
@@ -2608,6 +2617,22 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
wait_on_page_writeback(page);
BUG_ON(PageWriteback(page));
+ /*
+ * Should never happen but for buggy code in
+ * other subsystems that call
+ * set_page_dirty() without properly warning
+ * the file system first. See [1] for more
+ * information.
+ *
+ * [1] https://lore.kernel.org/linux-mm/20180103100430.GE4911@quack2.suse.cz
+ */
+ if (!page_has_buffers(page)) {
+ ext4_warning_inode(mpd->inode, "page %lu does not have buffers attached", page->index);
+ ClearPageDirty(page);
+ unlock_page(page);
+ continue;
+ }
+
if (mpd->map.m_len == 0)
mpd->first_page = page->index;
mpd->next_page = page->index + 1;
@@ -3955,7 +3980,8 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
struct super_block *sb = inode->i_sb;
ext4_lblk_t first_block, stop_block;
struct address_space *mapping = inode->i_mapping;
- loff_t first_block_offset, last_block_offset;
+ loff_t first_block_offset, last_block_offset, max_length;
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
handle_t *handle;
unsigned int credits;
int ret = 0;
@@ -4001,6 +4027,14 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
offset;
}
+ /*
+ * For punch hole the length + offset needs to be within one block
+ * before last range. Adjust the length if it goes beyond that limit.
+ */
+ max_length = sbi->s_bitmap_maxbytes - inode->i_sb->s_blocksize;
+ if (offset + length > max_length)
+ length = max_length - offset;
+
if (offset & (sb->s_blocksize - 1) ||
(offset + length) & (sb->s_blocksize - 1)) {
/*
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e17a6396bde6..c50ba683a570 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3241,9 +3241,11 @@ static int count_overhead(struct super_block *sb, ext4_group_t grp,
ext4_fsblk_t first_block, last_block, b;
ext4_group_t i, ngroups = ext4_get_groups_count(sb);
int s, j, count = 0;
+ int has_super = ext4_bg_has_super(sb, grp);
if (!ext4_has_feature_bigalloc(sb))
- return (ext4_bg_has_super(sb, grp) + ext4_bg_num_gdb(sb, grp) +
+ return (has_super + ext4_bg_num_gdb(sb, grp) +
+ (has_super ? le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0) +
sbi->s_itb_per_group + 2);
first_block = le32_to_cpu(sbi->s_es->s_first_data_block) +
@@ -4162,9 +4164,18 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
* Get the # of file system overhead blocks from the
* superblock if present.
*/
- if (es->s_overhead_clusters)
- sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);
- else {
+ sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);
+ /* ignore the precalculated value if it is ridiculous */
+ if (sbi->s_overhead > ext4_blocks_count(es))
+ sbi->s_overhead = 0;
+ /*
+ * If the bigalloc feature is not enabled recalculating the
+ * overhead doesn't take long, so we might as well just redo
+ * it to make sure we are using the correct value.
+ */
+ if (!ext4_has_feature_bigalloc(sb))
+ sbi->s_overhead = 0;
+ if (sbi->s_overhead == 0) {
err = ext4_calculate_overhead(sb);
if (err)
goto failed_mount_wq;
diff --git a/fs/file.c b/fs/file.c
index 0e31a66207e8..be0792c0a231 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -692,28 +692,69 @@ void do_close_on_exec(struct files_struct *files)
spin_unlock(&files->file_lock);
}
-static struct file *__fget(unsigned int fd, fmode_t mask, unsigned int refs)
+static inline struct file *__fget_files_rcu(struct files_struct *files,
+ unsigned int fd, fmode_t mask, unsigned int refs)
{
- struct files_struct *files = current->files;
- struct file *file;
+ for (;;) {
+ struct file *file;
+ struct fdtable *fdt = rcu_dereference_raw(files->fdt);
+ struct file __rcu **fdentry;
- rcu_read_lock();
-loop:
- file = fcheck_files(files, fd);
- if (file) {
- /* File object ref couldn't be taken.
- * dup2() atomicity guarantee is the reason
- * we loop to catch the new file (or NULL pointer)
+ if (unlikely(fd >= fdt->max_fds))
+ return NULL;
+
+ fdentry = fdt->fd + array_index_nospec(fd, fdt->max_fds);
+ file = rcu_dereference_raw(*fdentry);
+ if (unlikely(!file))
+ return NULL;
+
+ if (unlikely(file->f_mode & mask))
+ return NULL;
+
+ /*
+ * Ok, we have a file pointer. However, because we do
+ * this all locklessly under RCU, we may be racing with
+ * that file being closed.
+ *
+ * Such a race can take two forms:
+ *
+ * (a) the file ref already went down to zero,
+ * and get_file_rcu_many() fails. Just try
+ * again:
+ */
+ if (unlikely(!get_file_rcu_many(file, refs)))
+ continue;
+
+ /*
+ * (b) the file table entry has changed under us.
+ * Note that we don't need to re-check the 'fdt->fd'
+ * pointer having changed, because it always goes
+ * hand-in-hand with 'fdt'.
+ *
+ * If so, we need to put our refs and try again.
*/
- if (file->f_mode & mask)
- file = NULL;
- else if (!get_file_rcu_many(file, refs))
- goto loop;
- else if (__fcheck_files(files, fd) != file) {
+ if (unlikely(rcu_dereference_raw(files->fdt) != fdt) ||
+ unlikely(rcu_dereference_raw(*fdentry) != file)) {
fput_many(file, refs);
- goto loop;
+ continue;
}
+
+ /*
+ * Ok, we have a ref to the file, and checked that it
+ * still exists.
+ */
+ return file;
}
+}
+
+
+static struct file *__fget(unsigned int fd, fmode_t mask, unsigned int refs)
+{
+ struct files_struct *files = current->files;
+ struct file *file;
+
+ rcu_read_lock();
+ file = __fget_files_rcu(files, fd, mask, refs);
rcu_read_unlock();
return file;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 56a94535c246..9f83a4c602f9 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -917,15 +917,15 @@ static int read_rindex_entry(struct gfs2_inode *ip)
rgd->rd_bitbytes = be32_to_cpu(buf.ri_bitbytes);
spin_lock_init(&rgd->rd_rsspin);
- error = compute_bitstructs(rgd);
- if (error)
- goto fail;
-
error = gfs2_glock_get(sdp, rgd->rd_addr,
&gfs2_rgrp_glops, CREATE, &rgd->rd_gl);
if (error)
goto fail;
+ error = compute_bitstructs(rgd);
+ if (error)
+ goto fail_glock;
+
rgd->rd_rgl = (struct gfs2_rgrp_lvb *)rgd->rd_gl->gl_lksb.sb_lvbptr;
rgd->rd_flags &= ~(GFS2_RDF_UPTODATE | GFS2_RDF_PREFERRED);
if (rgd->rd_data > sdp->sd_max_rg_data)
@@ -942,6 +942,7 @@ static int read_rindex_entry(struct gfs2_inode *ip)
}
error = 0; /* someone else read in the rgrp; free it and ignore it */
+fail_glock:
gfs2_glock_put(rgd->rd_gl);
fail:
@@ -1390,7 +1391,8 @@ int gfs2_fitrim(struct file *filp, void __user *argp)
start = r.start >> bs_shift;
end = start + (r.len >> bs_shift);
- minlen = max_t(u64, r.minlen,
+ minlen = max_t(u64, r.minlen, sdp->sd_sb.sb_bsize);
+ minlen = max_t(u64, minlen,
q->limits.discard_granularity) >> bs_shift;
if (end <= start || minlen > sdp->sd_max_rg_data)
diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index b288c8ae1236..837cd55fd4c5 100644
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -415,13 +415,15 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
jffs2_free_ino_caches(c);
jffs2_free_raw_node_refs(c);
ret = -EIO;
- goto out_free;
+ goto out_sum_exit;
}
jffs2_calc_trigger_levels(c);
return 0;
+ out_sum_exit:
+ jffs2_sum_exit(c);
out_free:
kvfree(c->blocks);
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index c9c47d03a690..d3c9e4c82e57 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -596,8 +596,8 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
jffs2_free_ino_caches(c);
jffs2_free_raw_node_refs(c);
kvfree(c->blocks);
- out_inohash:
jffs2_clear_xattr_subsystem(c);
+ out_inohash:
kfree(c->inocache_list);
out_wbuf:
jffs2_flash_cleanup(c);
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 08813789fcf0..664384dac6e5 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -136,7 +136,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
if (!s) {
JFFS2_WARNING("Can't allocate memory for summary\n");
ret = -ENOMEM;
- goto out;
+ goto out_buf;
}
}
@@ -274,13 +274,15 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
}
ret = 0;
out:
+ jffs2_sum_reset_collected(s);
+ kfree(s);
+ out_buf:
if (buf_size)
kfree(flashbuf);
#ifndef __ECOS
else
mtd_unpoint(c->mtd, 0, c->mtd->size);
#endif
- kfree(s);
return ret;
}
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 87b41edc800d..68779cc3609a 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -156,12 +156,13 @@ void jfs_evict_inode(struct inode *inode)
dquot_initialize(inode);
if (JFS_IP(inode)->fileset == FILESYSTEM_I) {
+ struct inode *ipimap = JFS_SBI(inode->i_sb)->ipimap;
truncate_inode_pages_final(&inode->i_data);
if (test_cflag(COMMIT_Freewmap, inode))
jfs_free_zero_link(inode);
- if (JFS_SBI(inode->i_sb)->ipimap)
+ if (ipimap && JFS_IP(ipimap)->i_imap)
diFree(inode);
/*
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 9ff510a489cb..6dac48e29d28 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -161,6 +161,7 @@ static const s8 budtab[256] = {
* 0 - success
* -ENOMEM - insufficient memory
* -EIO - i/o error
+ * -EINVAL - wrong bmap data
*/
int dbMount(struct inode *ipbmap)
{
@@ -192,6 +193,12 @@ int dbMount(struct inode *ipbmap)
bmp->db_nfree = le64_to_cpu(dbmp_le->dn_nfree);
bmp->db_l2nbperpage = le32_to_cpu(dbmp_le->dn_l2nbperpage);
bmp->db_numag = le32_to_cpu(dbmp_le->dn_numag);
+ if (!bmp->db_numag) {
+ release_metapage(mp);
+ kfree(bmp);
+ return -EINVAL;
+ }
+
bmp->db_maxlevel = le32_to_cpu(dbmp_le->dn_maxlevel);
bmp->db_maxag = le32_to_cpu(dbmp_le->dn_maxag);
bmp->db_agpref = le32_to_cpu(dbmp_le->dn_agpref);
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 67903eeb2ca4..00e58a42e637 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -319,10 +319,6 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
n = ntohl(*p++);
if (n <= 0)
goto out;
- if (n > ULONG_MAX / sizeof(*args->devs)) {
- status = htonl(NFS4ERR_BADXDR);
- goto out;
- }
args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
if (!args->devs) {
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 536009e50387..fd5bb6f7f5f7 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -207,7 +207,7 @@ nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
int stable = 1;
unsigned long cnt = argp->len;
- dprintk("nfsd: WRITE %s %d bytes at %d\n",
+ dprintk("nfsd: WRITE %s %u bytes at %d\n",
SVCFH_fmt(&argp->fh),
argp->len, argp->offset);
diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h
index 4f0481d63804..8c78b56a9350 100644
--- a/fs/nfsd/xdr.h
+++ b/fs/nfsd/xdr.h
@@ -32,7 +32,7 @@ struct nfsd_readargs {
struct nfsd_writeargs {
svc_fh fh;
__u32 offset;
- int len;
+ __u32 len;
int vlen;
};
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 8cd134750ebb..4150b3633f77 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -1915,6 +1915,10 @@ int ntfs_read_inode_mount(struct inode *vi)
}
/* Now allocate memory for the attribute list. */
ni->attr_list_size = (u32)ntfs_attr_size(a);
+ if (!ni->attr_list_size) {
+ ntfs_error(sb, "Attr_list_size is zero");
+ goto put_err_out;
+ }
ni->attr_list = ntfs_malloc_nofs(ni->attr_list_size);
if (!ni->attr_list) {
ntfs_error(sb, "Not enough memory to allocate buffer "
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 300cdbdc8494..c41e7f51150f 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -565,8 +565,7 @@ int sysfs_emit(char *buf, const char *fmt, ...)
va_list args;
int len;
- if (WARN(!buf || offset_in_page(buf),
- "invalid sysfs_emit: buf:%p\n", buf))
+ if (WARN(!buf, "invalid sysfs_emit: buf:%p\n", buf))
return 0;
va_start(args, fmt);
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index e00594ad9972..b56d1cfe429e 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -265,7 +265,6 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
if (!gid_valid(gid))
return -EINVAL;
opts->gid = gid;
- set_gid(tracefs_mount->mnt_root, gid);
break;
case Opt_mode:
if (match_octal(&args[0], &option))
@@ -292,7 +291,9 @@ static int tracefs_apply_options(struct super_block *sb)
inode->i_mode |= opts->mode;
inode->i_uid = opts->uid;
- inode->i_gid = opts->gid;
+
+ /* Set all the group ids to the mount option */
+ set_gid(sb->s_root, opts->gid);
return 0;
}
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 56eed54633cf..89cebe1807d2 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -376,6 +376,8 @@ static int do_tmpfile(struct inode *dir, struct dentry *dentry,
make_bad_inode(inode);
if (!instantiated)
iput(inode);
+ else if (whiteout)
+ iput(*whiteout);
out_budg:
ubifs_release_budget(c, &req);
if (!instantiated)
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index 3c7b29de0ca7..b5320eedec3b 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -105,7 +105,7 @@ static int setflags(struct inode *inode, int flags)
struct ubifs_inode *ui = ubifs_inode(inode);
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_budget_req req = { .dirtied_ino = 1,
- .dirtied_ino_d = ui->data_len };
+ .dirtied_ino_d = ALIGN(ui->data_len, 8) };
err = ubifs_budget_space(c, &req);
if (err)
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 18863d56273c..040266891414 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -85,10 +85,33 @@
ARM_SMCCC_SMC_32, \
0, 0x7fff)
+#define ARM_SMCCC_ARCH_WORKAROUND_3 \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+ ARM_SMCCC_SMC_32, \
+ 0, 0x3fff)
+
+#define SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED 1
+
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
#include <linux/types.h>
+
+enum arm_smccc_conduit {
+ SMCCC_CONDUIT_NONE,
+ SMCCC_CONDUIT_SMC,
+ SMCCC_CONDUIT_HVC,
+};
+
+/**
+ * arm_smccc_1_1_get_conduit()
+ *
+ * Returns the conduit to be used for SMCCCv1.1 or later.
+ *
+ * When SMCCCv1.1 is not present, returns SMCCC_CONDUIT_NONE.
+ */
+enum arm_smccc_conduit arm_smccc_1_1_get_conduit(void);
+
/**
* struct arm_smccc_res - Result from SMC/HVC call
* @a0-a3 result values from registers 0 to 3
@@ -311,5 +334,63 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
#define SMCCC_RET_NOT_SUPPORTED -1
#define SMCCC_RET_NOT_REQUIRED -2
+/*
+ * Like arm_smccc_1_1* but always returns SMCCC_RET_NOT_SUPPORTED.
+ * Used when the SMCCC conduit is not defined. The empty asm statement
+ * avoids compiler warnings about unused variables.
+ */
+#define __fail_smccc_1_1(...) \
+ do { \
+ __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \
+ asm ("" __constraints(__count_args(__VA_ARGS__))); \
+ if (___res) \
+ ___res->a0 = SMCCC_RET_NOT_SUPPORTED; \
+ } while (0)
+
+/*
+ * arm_smccc_1_1_invoke() - make an SMCCC v1.1 compliant call
+ *
+ * This is a variadic macro taking one to eight source arguments, and
+ * an optional return structure.
+ *
+ * @a0-a7: arguments passed in registers 0 to 7
+ * @res: result values from registers 0 to 3
+ *
+ * This macro will make either an HVC call or an SMC call depending on the
+ * current SMCCC conduit. If no valid conduit is available then -1
+ * (SMCCC_RET_NOT_SUPPORTED) is returned in @res.a0 (if supplied).
+ *
+ * The return value also provides the conduit that was used.
+ */
+#define arm_smccc_1_1_invoke(...) ({ \
+ int method = arm_smccc_1_1_get_conduit(); \
+ switch (method) { \
+ case SMCCC_CONDUIT_HVC: \
+ arm_smccc_1_1_hvc(__VA_ARGS__); \
+ break; \
+ case SMCCC_CONDUIT_SMC: \
+ arm_smccc_1_1_smc(__VA_ARGS__); \
+ break; \
+ default: \
+ __fail_smccc_1_1(__VA_ARGS__); \
+ method = SMCCC_CONDUIT_NONE; \
+ break; \
+ } \
+ method; \
+ })
+
+/* Paravirtualised time calls (defined by ARM DEN0057A) */
+#define ARM_SMCCC_HV_PV_TIME_FEATURES \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+ ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_STANDARD_HYP, \
+ 0x20)
+
+#define ARM_SMCCC_HV_PV_TIME_ST \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
+ ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_STANDARD_HYP, \
+ 0x21)
+
#endif /*__ASSEMBLY__*/
#endif /*__LINUX_ARM_SMCCC_H*/
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index caba9253957f..555bf0c5946d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -50,6 +50,14 @@ struct pr_ops;
typedef void (rq_end_io_fn)(struct request *, int);
+static inline int blk_validate_block_size(unsigned int bsize)
+{
+ if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
+ return -EINVAL;
+
+ return 0;
+}
+
#define BLK_RL_SYNCFULL (1U << 0)
#define BLK_RL_ASYNCFULL (1U << 1)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 7995940d4187..fe520d40597f 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -295,6 +295,11 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size)
/* verify correctness of eBPF program */
int bpf_check(struct bpf_prog **fp, union bpf_attr *attr);
+
+static inline bool unprivileged_ebpf_enabled(void)
+{
+ return !sysctl_unprivileged_bpf_disabled;
+}
#else
static inline void bpf_register_prog_type(struct bpf_prog_type_list *tl)
{
@@ -322,6 +327,12 @@ static inline struct bpf_prog *bpf_prog_inc(struct bpf_prog *prog)
{
return ERR_PTR(-EOPNOTSUPP);
}
+
+static inline bool unprivileged_ebpf_enabled(void)
+{
+ return false;
+}
+
#endif /* CONFIG_BPF_SYSCALL */
/* verifier prototypes for helper functions called from eBPF programs */
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index d830eddacdc6..1c1ca4168516 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -107,7 +107,7 @@
#define __weak __attribute__((weak))
#define __alias(symbol) __attribute__((alias(#symbol)))
-#ifdef RETPOLINE
+#ifdef CONFIG_RETPOLINE
#define __noretpoline __attribute__((indirect_branch("keep")))
#endif
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 6fec9e81bd70..1979298fdca9 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -125,7 +125,7 @@ static inline bool is_multicast_ether_addr(const u8 *addr)
#endif
}
-static inline bool is_multicast_ether_addr_64bits(const u8 addr[6+2])
+static inline bool is_multicast_ether_addr_64bits(const u8 *addr)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
#ifdef __BIG_ENDIAN
@@ -339,8 +339,7 @@ static inline bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
* Please note that alignment of addr1 & addr2 are only guaranteed to be 16 bits.
*/
-static inline bool ether_addr_equal_64bits(const u8 addr1[6+2],
- const u8 addr2[6+2])
+static inline bool ether_addr_equal_64bits(const u8 *addr1, const u8 *addr2)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
u64 fold = (*(const u64 *)addr1) ^ (*(const u64 *)addr2);
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 6dd276227217..5747174e0326 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -7327,8 +7327,8 @@ struct mlx5_ifc_bufferx_reg_bits {
u8 reserved_at_0[0x6];
u8 lossy[0x1];
u8 epsb[0x1];
- u8 reserved_at_8[0xc];
- u8 size[0xc];
+ u8 reserved_at_8[0x8];
+ u8 size[0x10];
u8 xoff_threshold[0x10];
u8 xon_threshold[0x10];
diff --git a/include/linux/module.h b/include/linux/module.h
index 88a79e17fad1..bf1512a8b8d9 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -797,7 +797,7 @@ static inline void module_bug_finalize(const Elf_Ehdr *hdr,
static inline void module_bug_cleanup(struct module *mod) {}
#endif /* CONFIG_GENERIC_BUG */
-#ifdef RETPOLINE
+#ifdef CONFIG_RETPOLINE
extern bool retpoline_module_ok(bool has_retpoline);
#else
static inline bool retpoline_module_ok(bool has_retpoline)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index de7bfe2fabea..e051037887f0 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3466,7 +3466,8 @@ void netdev_run_todo(void);
*/
static inline void dev_put(struct net_device *dev)
{
- this_cpu_dec(*dev->pcpu_refcnt);
+ if (dev)
+ this_cpu_dec(*dev->pcpu_refcnt);
}
/**
@@ -3477,7 +3478,8 @@ static inline void dev_put(struct net_device *dev)
*/
static inline void dev_hold(struct net_device *dev)
{
- this_cpu_inc(*dev->pcpu_refcnt);
+ if (dev)
+ this_cpu_inc(*dev->pcpu_refcnt);
}
/* Carrier loss detection, dial on demand. The functions netif_carrier_on
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 5c30891e84e5..5c59b6386dff 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -143,6 +143,11 @@ static inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)
*sum = ~csum16_add(csum16_sub(~(*sum), old), new);
}
+static inline void csum_replace(__wsum *csum, __wsum old, __wsum new)
+{
+ *csum = csum_add(csum_sub(*csum, old), new);
+}
+
struct sk_buff;
void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
__be32 from, __be32 to, bool pseudohdr);
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index 2280cfe86c56..faa535defddd 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -31,7 +31,7 @@ void nf_register_queue_handler(struct net *net, const struct nf_queue_handler *q
void nf_unregister_queue_handler(struct net *net);
void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
-void nf_queue_entry_get_refs(struct nf_queue_entry *entry);
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry);
void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
static inline void init_hashrandom(u32 *jhash_initval)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index b2a405c93a34..7415a9876987 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1595,13 +1595,16 @@ int xfrm_policy_walk(struct net *net, struct xfrm_policy_walk *walk,
void *);
void xfrm_policy_walk_done(struct xfrm_policy_walk *walk, struct net *net);
int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl);
-struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark,
+struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net,
+ const struct xfrm_mark *mark,
u8 type, int dir,
struct xfrm_selector *sel,
struct xfrm_sec_ctx *ctx, int delete,
int *err);
-struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8, int dir,
- u32 id, int delete, int *err);
+struct xfrm_policy *xfrm_policy_byid(struct net *net,
+ const struct xfrm_mark *mark,
+ u8 type, int dir, u32 id, int delete,
+ int *err);
int xfrm_policy_flush(struct net *net, u8 type, bool task_valid);
void xfrm_policy_hash_rebuild(struct net *net);
u32 xfrm_get_acqseq(void);
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index b584868e1b26..fd7cacbfc8c2 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -277,7 +277,8 @@
#define KEY_PAUSECD 201
#define KEY_PROG3 202
#define KEY_PROG4 203
-#define KEY_DASHBOARD 204 /* AL Dashboard */
+#define KEY_ALL_APPLICATIONS 204 /* AC Desktop Show All Applications */
+#define KEY_DASHBOARD KEY_ALL_APPLICATIONS
#define KEY_SUSPEND 205
#define KEY_CLOSE 206 /* AC Close */
#define KEY_PLAY 207
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index f9d8aac170fb..c51ae64b6dcb 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -97,17 +97,32 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly);
* access has been ended, free the given page too. Access will be ended
* immediately iff the grant entry is not in use, otherwise it will happen
* some time later. page may be 0, in which case no freeing will occur.
+ * Note that the granted page might still be accessed (read or write) by the
+ * other side after gnttab_end_foreign_access() returns, so even if page was
+ * specified as 0 it is not allowed to just reuse the page for other
+ * purposes immediately. gnttab_end_foreign_access() will take an additional
+ * reference to the granted page in this case, which is dropped only after
+ * the grant is no longer in use.
+ * This requires that multi page allocations for areas subject to
+ * gnttab_end_foreign_access() are done via alloc_pages_exact() (and freeing
+ * via free_pages_exact()) in order to avoid high order pages.
*/
void gnttab_end_foreign_access(grant_ref_t ref, int readonly,
unsigned long page);
+/*
+ * End access through the given grant reference, iff the grant entry is
+ * no longer in use. In case of success ending foreign access, the
+ * grant reference is deallocated.
+ * Return 1 if the grant entry was freed, 0 if it is still in use.
+ */
+int gnttab_try_end_foreign_access(grant_ref_t ref);
+
int gnttab_grant_foreign_transfer(domid_t domid, unsigned long pfn);
unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref);
unsigned long gnttab_end_foreign_transfer(grant_ref_t ref);
-int gnttab_query_foreign_access(grant_ref_t ref);
-
/*
* operations on reserved batches of grant references
*/
diff --git a/init/main.c b/init/main.c
index be95e522fca8..89957e9e358a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -706,7 +706,7 @@ static int __init initcall_blacklist(char *str)
}
} while (str_entry);
- return 0;
+ return 1;
}
static bool __init_or_module initcall_blacklisted(initcall_t fn)
@@ -922,7 +922,9 @@ static noinline void __init kernel_init_freeable(void);
bool rodata_enabled __ro_after_init = true;
static int __init set_debug_rodata(char *str)
{
- return strtobool(str, &rodata_enabled);
+ if (strtobool(str, &rodata_enabled))
+ pr_warn("Invalid option string for rodata: '%s'\n", str);
+ return 1;
}
__setup("rodata=", set_debug_rodata);
#endif
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6f3134158375..fd1a6b82f557 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -8307,8 +8307,11 @@ perf_event_parse_addr_filter(struct perf_event *event, char *fstr,
}
/* ready to consume more filters */
+ kfree(filename);
+ filename = NULL;
state = IF_STATE_ACTION;
filter = NULL;
+ kernel = 0;
}
}
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 8a406f53d211..785c37328451 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -1199,7 +1199,7 @@ static int __init resumedelay_setup(char *str)
int rc = kstrtouint(str, 0, &resume_delay);
if (rc)
- return rc;
+ pr_warn("resumedelay: bad option string '%s'\n", str);
return 1;
}
diff --git a/kernel/power/suspend_test.c b/kernel/power/suspend_test.c
index bdff5ed57f10..5476bd892183 100644
--- a/kernel/power/suspend_test.c
+++ b/kernel/power/suspend_test.c
@@ -158,22 +158,22 @@ static int __init setup_test_suspend(char *value)
value++;
suspend_type = strsep(&value, ",");
if (!suspend_type)
- return 0;
+ return 1;
repeat = strsep(&value, ",");
if (repeat) {
if (kstrtou32(repeat, 0, &test_repeat_count_max))
- return 0;
+ return 1;
}
for (i = 0; pm_labels[i]; i++)
if (!strcmp(pm_labels[i], suspend_type)) {
test_state_label = pm_labels[i];
- return 0;
+ return 1;
}
printk(warn_bad_state, suspend_type);
- return 0;
+ return 1;
}
__setup("test_suspend", setup_test_suspend);
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 3f1b762a0c30..b8954fc4b400 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -122,8 +122,10 @@ static int __control_devkmsg(char *str)
static int __init control_devkmsg(char *str)
{
- if (__control_devkmsg(str) < 0)
+ if (__control_devkmsg(str) < 0) {
+ pr_warn("printk.devkmsg: bad option string '%s'\n", str);
return 1;
+ }
/*
* Set sysctl string accordingly:
@@ -145,7 +147,7 @@ static int __init control_devkmsg(char *str)
*/
devkmsg_log |= DEVKMSG_LOG_MASK_LOCK;
- return 0;
+ return 1;
}
__setup("printk.devkmsg=", control_devkmsg);
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index c738827f29f7..8f2bf81793c7 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -385,6 +385,26 @@ bool ptrace_may_access(struct task_struct *task, unsigned int mode)
return !err;
}
+static int check_ptrace_options(unsigned long data)
+{
+ if (data & ~(unsigned long)PTRACE_O_MASK)
+ return -EINVAL;
+
+ if (unlikely(data & PTRACE_O_SUSPEND_SECCOMP)) {
+ if (!IS_ENABLED(CONFIG_CHECKPOINT_RESTORE) ||
+ !IS_ENABLED(CONFIG_SECCOMP))
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (seccomp_mode(¤t->seccomp) != SECCOMP_MODE_DISABLED ||
+ current->ptrace & PT_SUSPEND_SECCOMP)
+ return -EPERM;
+ }
+ return 0;
+}
+
static int ptrace_attach(struct task_struct *task, long request,
unsigned long addr,
unsigned long flags)
@@ -396,8 +416,16 @@ static int ptrace_attach(struct task_struct *task, long request,
if (seize) {
if (addr != 0)
goto out;
+ /*
+ * This duplicates the check in check_ptrace_options() because
+ * ptrace_attach() and ptrace_setoptions() have historically
+ * used different error codes for unknown ptrace options.
+ */
if (flags & ~(unsigned long)PTRACE_O_MASK)
goto out;
+ retval = check_ptrace_options(flags);
+ if (retval)
+ return retval;
flags = PT_PTRACED | PT_SEIZED | (flags << PT_OPT_FLAG_SHIFT);
} else {
flags = PT_PTRACED;
@@ -670,22 +698,11 @@ int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long ds
static int ptrace_setoptions(struct task_struct *child, unsigned long data)
{
unsigned flags;
+ int ret;
- if (data & ~(unsigned long)PTRACE_O_MASK)
- return -EINVAL;
-
- if (unlikely(data & PTRACE_O_SUSPEND_SECCOMP)) {
- if (!IS_ENABLED(CONFIG_CHECKPOINT_RESTORE) ||
- !IS_ENABLED(CONFIG_SECCOMP))
- return -EINVAL;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (seccomp_mode(¤t->seccomp) != SECCOMP_MODE_DISABLED ||
- current->ptrace & PT_SUSPEND_SECCOMP)
- return -EPERM;
- }
+ ret = check_ptrace_options(data);
+ if (ret)
+ return ret;
/* Avoid intermediate state when all opts are cleared */
flags = child->ptrace;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 935224123441..5237566f2bad 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -839,25 +839,15 @@ void print_numa_stats(struct seq_file *m, int node, unsigned long tsf,
static void sched_show_numa(struct task_struct *p, struct seq_file *m)
{
#ifdef CONFIG_NUMA_BALANCING
- struct mempolicy *pol;
-
if (p->mm)
P(mm->numa_scan_seq);
- task_lock(p);
- pol = p->mempolicy;
- if (pol && !(pol->flags & MPOL_F_MORON))
- pol = NULL;
- mpol_get(pol);
- task_unlock(p);
-
P(numa_pages_migrated);
P(numa_preferred_nid);
P(total_numa_faults);
SEQ_printf(m, "current_node=%d, numa_group_id=%d\n",
task_node(p), task_numa_group_id(p));
show_numa_stats(p, m);
- mpol_put(pol);
#endif
}
diff --git a/kernel/smp.c b/kernel/smp.c
index 399905fdfa3f..df9d5a64b0aa 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -209,7 +209,7 @@ static void flush_smp_call_function_queue(bool warn_cpu_offline)
/* There shouldn't be any pending callbacks on an offline CPU. */
if (unlikely(warn_cpu_offline && !cpu_online(smp_processor_id()) &&
- !warned && !llist_empty(head))) {
+ !warned && entry != NULL)) {
warned = true;
WARN(1, "IPI on offline CPU %d\n", smp_processor_id());
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 78b445562b81..184d462339e6 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -222,6 +222,11 @@ static int sysrq_sysctl_handler(struct ctl_table *table, int write,
#endif
#ifdef CONFIG_BPF_SYSCALL
+
+void __weak unpriv_ebpf_notify(int new_state)
+{
+}
+
static int bpf_unpriv_handler(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)
{
@@ -239,6 +244,9 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write,
return -EPERM;
*(int *)table->data = unpriv_enable;
}
+
+ unpriv_ebpf_notify(unpriv_enable);
+
return ret;
}
#endif
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index b0975f35612c..1c801aeae9b2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1077,10 +1077,12 @@ static int __init set_buf_size(char *str)
if (!str)
return 0;
buf_size = memparse(str, &str);
- /* nr_entries can not be zero */
- if (buf_size == 0)
- return 0;
- trace_buf_size = buf_size;
+ /*
+ * nr_entries can not be zero and the startup
+ * tests require some buffer space. Therefore
+ * ensure we have at least 4096 bytes of buffer.
+ */
+ trace_buf_size = max(4096UL, buf_size);
return 1;
}
__setup("trace_buf_size=", set_buf_size);
diff --git a/lib/Kconfig b/lib/Kconfig
index b06becb3f477..b3b4f3045178 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -16,7 +16,6 @@ config BITREVERSE
config HAVE_ARCH_BITREVERSE
bool
default n
- depends on BITREVERSE
help
This option enables the use of hardware bit-reversal instructions on
architectures which support such operations.
diff --git a/lib/raid6/test/test.c b/lib/raid6/test/test.c
index b07f4d8e6b03..a7e937248299 100644
--- a/lib/raid6/test/test.c
+++ b/lib/raid6/test/test.c
@@ -22,7 +22,6 @@
#define NDISKS 16 /* Including P and Q */
const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE)));
-struct raid6_calls raid6_call;
char *dataptrs[NDISKS];
char data[NDISKS][PAGE_SIZE] __attribute__((aligned(PAGE_SIZE)));
diff --git a/localversion-rt b/localversion-rt
index 62fe25bd6258..58dccbc39d0a 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt192
+-rt193
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 59bb2b9ec0e2..c1360b250919 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1130,7 +1130,7 @@ EXPORT_SYMBOL(kmemleak_no_scan);
void __ref kmemleak_alloc_phys(phys_addr_t phys, size_t size, int min_count,
gfp_t gfp)
{
- if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn)
+ if (PHYS_PFN(phys) >= min_low_pfn && PHYS_PFN(phys) < max_low_pfn)
kmemleak_alloc(__va(phys), size, min_count, gfp);
}
EXPORT_SYMBOL(kmemleak_alloc_phys);
@@ -1141,7 +1141,7 @@ EXPORT_SYMBOL(kmemleak_alloc_phys);
*/
void __ref kmemleak_free_part_phys(phys_addr_t phys, size_t size)
{
- if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn)
+ if (PHYS_PFN(phys) >= min_low_pfn && PHYS_PFN(phys) < max_low_pfn)
kmemleak_free_part(__va(phys), size);
}
EXPORT_SYMBOL(kmemleak_free_part_phys);
@@ -1152,7 +1152,7 @@ EXPORT_SYMBOL(kmemleak_free_part_phys);
*/
void __ref kmemleak_not_leak_phys(phys_addr_t phys)
{
- if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn)
+ if (PHYS_PFN(phys) >= min_low_pfn && PHYS_PFN(phys) < max_low_pfn)
kmemleak_not_leak(__va(phys));
}
EXPORT_SYMBOL(kmemleak_not_leak_phys);
@@ -1163,7 +1163,7 @@ EXPORT_SYMBOL(kmemleak_not_leak_phys);
*/
void __ref kmemleak_ignore_phys(phys_addr_t phys)
{
- if (!IS_ENABLED(CONFIG_HIGHMEM) || PHYS_PFN(phys) < max_low_pfn)
+ if (PHYS_PFN(phys) >= min_low_pfn && PHYS_PFN(phys) < max_low_pfn)
kmemleak_ignore(__va(phys));
}
EXPORT_SYMBOL(kmemleak_ignore_phys);
diff --git a/mm/memblock.c b/mm/memblock.c
index e43065b13c08..9f4e78dd2aa1 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -272,14 +272,20 @@ void __init memblock_discard(void)
addr = __pa(memblock.reserved.regions);
size = PAGE_ALIGN(sizeof(struct memblock_region) *
memblock.reserved.max);
- __memblock_free_late(addr, size);
+ if (memblock_reserved_in_slab)
+ kfree(memblock.reserved.regions);
+ else
+ __memblock_free_late(addr, size);
}
if (memblock.memory.regions != memblock_memory_init_regions) {
addr = __pa(memblock.memory.regions);
size = PAGE_ALIGN(sizeof(struct memblock_region) *
memblock.memory.max);
- __memblock_free_late(addr, size);
+ if (memblock_memory_in_slab)
+ kfree(memblock.memory.regions);
+ else
+ __memblock_free_late(addr, size);
}
}
#endif
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 701c4aff44ad..6fa15f7a5532 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5843,7 +5843,7 @@ static int __init cgroup_memory(char *s)
if (!strcmp(token, "nokmem"))
cgroup_memory_nokmem = true;
}
- return 0;
+ return 1;
}
__setup("cgroup.memory=", cgroup_memory);
diff --git a/mm/memory.c b/mm/memory.c
index 2b2cc69ddcce..1b31cdce936e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1113,6 +1113,17 @@ int copy_page_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
return ret;
}
+/* Whether we should zap all COWed (private) pages too */
+static inline bool should_zap_cows(struct zap_details *details)
+{
+ /* By default, zap all pages */
+ if (!details)
+ return true;
+
+ /* Or, we zap COWed pages only if the caller wants to */
+ return !details->check_mapping;
+}
+
static unsigned long zap_pte_range(struct mmu_gather *tlb,
struct vm_area_struct *vma, pmd_t *pmd,
unsigned long addr, unsigned long end,
@@ -1186,17 +1197,20 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
}
continue;
}
- /* only check swap_entries if explicitly asked for in details */
- if (unlikely(details && !details->check_swap_entries))
- continue;
entry = pte_to_swp_entry(ptent);
- if (!non_swap_entry(entry))
+ if (!non_swap_entry(entry)) {
+ /* Genuine swap entry, hence a private anon page */
+ if (!should_zap_cows(details))
+ continue;
rss[MM_SWAPENTS]--;
- else if (is_migration_entry(entry)) {
+ } else if (is_migration_entry(entry)) {
struct page *page;
page = migration_entry_to_page(entry);
+ if (details && details->check_mapping &&
+ details->check_mapping != page_rmapping(page))
+ continue;
rss[mm_counter(page)]--;
}
if (unlikely(!free_swap_and_cache(entry)))
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 2f443767fd1b..6059f85546fe 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -734,7 +734,6 @@ static int vma_replace_policy(struct vm_area_struct *vma,
static int mbind_range(struct mm_struct *mm, unsigned long start,
unsigned long end, struct mempolicy *new_pol)
{
- struct vm_area_struct *next;
struct vm_area_struct *prev;
struct vm_area_struct *vma;
int err = 0;
@@ -750,8 +749,7 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
if (start > vma->vm_start)
prev = vma;
- for (; vma && vma->vm_start < end; prev = vma, vma = next) {
- next = vma->vm_next;
+ for (; vma && vma->vm_start < end; prev = vma, vma = vma->vm_next) {
vmstart = max(start, vma->vm_start);
vmend = min(end, vma->vm_end);
@@ -765,10 +763,6 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
new_pol, vma->vm_userfaultfd_ctx);
if (prev) {
vma = prev;
- next = vma->vm_next;
- if (mpol_equal(vma_policy(vma), new_pol))
- continue;
- /* vma_merge() joined vma && vma->next, case 8 */
goto replace;
}
if (vma->vm_start != vmstart) {
@@ -2505,6 +2499,7 @@ static int shared_policy_replace(struct shared_policy *sp, unsigned long start,
mpol_new = kmem_cache_alloc(policy_cache, GFP_KERNEL);
if (!mpol_new)
goto err_out;
+ atomic_set(&mpol_new->refcnt, 1);
goto restart;
}
diff --git a/mm/mmap.c b/mm/mmap.c
index 7c8815636c48..18bd38ac1531 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2425,7 +2425,7 @@ static int __init cmdline_parse_stack_guard_gap(char *p)
if (!*endptr)
stack_guard_gap = val << PAGE_SHIFT;
- return 0;
+ return 1;
}
__setup("stack_guard_gap=", cmdline_parse_stack_guard_gap);
diff --git a/mm/mremap.c b/mm/mremap.c
index b5d8d25173c6..058de6f8c9d5 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -192,6 +192,9 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
unsigned long mmun_start; /* For mmu_notifiers */
unsigned long mmun_end; /* For mmu_notifiers */
+ if (!len)
+ return 0;
+
old_end = old_addr + len;
flush_cache_range(vma, old_addr, old_end);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6d3aabbbb2b1..c138ea944591 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4560,7 +4560,7 @@ static int build_zonelists_node(pg_data_t *pgdat, struct zonelist *zonelist,
do {
zone_type--;
zone = pgdat->node_zones + zone_type;
- if (managed_zone(zone)) {
+ if (populated_zone(zone)) {
zoneref_set_zone(zone,
&zonelist->_zonerefs[nr_zones++]);
check_highest_zone(zone_type);
@@ -6324,10 +6324,17 @@ static void __init find_zone_movable_pfns_for_nodes(void)
out2:
/* Align start of ZONE_MOVABLE on all nids to MAX_ORDER_NR_PAGES */
- for (nid = 0; nid < MAX_NUMNODES; nid++)
+ for (nid = 0; nid < MAX_NUMNODES; nid++) {
+ unsigned long start_pfn, end_pfn;
+
zone_movable_pfn[nid] =
roundup(zone_movable_pfn[nid], MAX_ORDER_NR_PAGES);
+ get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
+ if (zone_movable_pfn[nid] >= end_pfn)
+ zone_movable_pfn[nid] = 0;
+ }
+
out:
/* restore the node_state */
node_states[N_MEMORY] = saved_node_state;
@@ -6554,7 +6561,7 @@ void __init mem_init_print_info(const char *str)
*/
#define adj_init_size(start, end, size, pos, adj) \
do { \
- if (start <= pos && pos < end && size > adj) \
+ if (&start[0] <= &pos[0] && &pos[0] < &end[0] && size > adj) \
size -= adj; \
} while (0)
diff --git a/mm/rmap.c b/mm/rmap.c
index a7276d8c96f3..0a5310b76ec8 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1638,11 +1638,36 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
*/
VM_BUG_ON_PAGE(!PageSwapCache(page), page);
- if (!PageDirty(page) && (flags & TTU_LZFREE)) {
- /* It's a freeable page by MADV_FREE */
- dec_mm_counter(mm, MM_ANONPAGES);
- rp->lazyfreed++;
- goto discard;
+ if (flags & TTU_LZFREE) {
+ int ref_count, map_count;
+
+ /*
+ * Synchronize with gup_pte_range():
+ * - clear PTE; barrier; read refcount
+ * - inc refcount; barrier; read PTE
+ */
+ smp_mb();
+
+ ref_count = page_ref_count(page);
+ map_count = page_mapcount(page);
+
+ /*
+ * Order reads for page refcount and dirty flag
+ * (see comments in __remove_mapping()).
+ */
+ smp_rmb();
+
+ /*
+ * The only page refs must be one from isolation
+ * plus the rmap(s) (dropped by discard:).
+ */
+ if (ref_count == 1 + map_count &&
+ !PageDirty(page)) {
+ /* It's a freeable page by MADV_FREE */
+ dec_mm_counter(mm, MM_ANONPAGES);
+ rp->lazyfreed++;
+ goto discard;
+ }
}
if (swap_duplicate(entry) < 0) {
diff --git a/mm/shmem.c b/mm/shmem.c
index 51aa13f59622..dffa36e6d1c4 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2478,7 +2478,8 @@ static void shmem_tag_pins(struct address_space *mapping)
slot = radix_tree_iter_retry(&iter);
continue;
}
- } else if (page_count(page) - page_mapcount(page) > 1) {
+ } else if (!PageTail(page) && page_count(page) !=
+ hpage_nr_pages(page) + total_mapcount(page)) {
radix_tree_tag_set(&mapping->page_tree, iter.index,
SHMEM_TAG_PINNED);
}
@@ -2538,8 +2539,8 @@ static int shmem_wait_for_pins(struct address_space *mapping)
page = NULL;
}
- if (page &&
- page_count(page) - page_mapcount(page) != 1) {
+ if (page && page_count(page) !=
+ hpage_nr_pages(page) + total_mapcount(page)) {
if (scan < LAST_SCAN)
goto continue_resched;
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index c4ef1be59cb1..839c4237d131 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -90,6 +90,13 @@ static void ax25_kill_by_device(struct net_device *dev)
ax25_for_each(s, &ax25_list) {
if (s->ax25_dev == ax25_dev) {
sk = s->sk;
+ if (!sk) {
+ spin_unlock_bh(&ax25_list_lock);
+ s->ax25_dev = NULL;
+ ax25_disconnect(s, ENETUNREACH);
+ spin_lock_bh(&ax25_list_lock);
+ goto again;
+ }
sock_hold(sk);
spin_unlock_bh(&ax25_list_lock);
lock_sock(sk);
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 4f384abb4ced..eaf0a483211a 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -155,22 +155,25 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
struct net *net = dev_net(net_dev);
struct net_device *parent_dev;
const struct net *parent_net;
+ int iflink;
bool ret;
/* check if this is a batman-adv mesh interface */
if (batadv_softif_is_valid(net_dev))
return true;
- /* no more parents..stop recursion */
- if (dev_get_iflink(net_dev) == 0 ||
- dev_get_iflink(net_dev) == net_dev->ifindex)
+ iflink = dev_get_iflink(net_dev);
+ if (iflink == 0)
return false;
parent_net = batadv_getlink_net(net_dev, net);
+ /* iflink to itself, most likely physical device */
+ if (net == parent_net && iflink == net_dev->ifindex)
+ return false;
+
/* recurse over the parent device */
- parent_dev = __dev_get_by_index((struct net *)parent_net,
- dev_get_iflink(net_dev));
+ parent_dev = __dev_get_by_index((struct net *)parent_net, iflink);
/* if we got a NULL parent_dev there is something broken.. */
if (!parent_dev) {
pr_err("Cannot find parent device\n");
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index cff87c465bcb..8face15b42d8 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4470,8 +4470,9 @@ static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
hci_dev_lock(hdev);
hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
- if (hcon) {
+ if (hcon && hcon->type == AMP_LINK) {
hcon->state = BT_CLOSED;
+ hci_disconn_cfm(hcon, ev->reason);
hci_conn_del(hcon);
}
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 3fb5d8ecc849..e42df58b8876 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -198,7 +198,7 @@ static ssize_t speed_show(struct device *dev,
if (!rtnl_trylock())
return restart_syscall();
- if (netif_running(netdev)) {
+ if (netif_running(netdev) && netif_device_present(netdev)) {
struct ethtool_link_ksettings cmd;
if (!__ethtool_get_link_ksettings(netdev, &cmd))
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4e192c8bd8b1..9b7d01857ac4 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1731,7 +1731,7 @@ unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta)
/* Free pulled out fragments. */
while ((list = skb_shinfo(skb)->frag_list) != insp) {
skb_shinfo(skb)->frag_list = list->next;
- kfree_skb(list);
+ consume_skb(list);
}
/* And insert new clone at head. */
if (clone) {
@@ -4966,7 +4966,7 @@ static int pskb_carve_frag_list(struct sk_buff *skb,
/* Free pulled out fragments. */
while ((list = shinfo->frag_list) != insp) {
shinfo->frag_list = list->next;
- kfree_skb(list);
+ consume_skb(list);
}
/* And insert new clone at head. */
if (clone) {
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 2dbf5a0faad3..e32a520c3702 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1938,10 +1938,54 @@ int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del)
}
EXPORT_SYMBOL(dcb_ieee_delapp);
+static void dcbnl_flush_dev(struct net_device *dev)
+{
+ struct dcb_app_type *itr, *tmp;
+
+ spin_lock_bh(&dcb_lock);
+
+ list_for_each_entry_safe(itr, tmp, &dcb_app_list, list) {
+ if (itr->ifindex == dev->ifindex) {
+ list_del(&itr->list);
+ kfree(itr);
+ }
+ }
+
+ spin_unlock_bh(&dcb_lock);
+}
+
+static int dcbnl_netdevice_event(struct notifier_block *nb,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+ switch (event) {
+ case NETDEV_UNREGISTER:
+ if (!dev->dcbnl_ops)
+ return NOTIFY_DONE;
+
+ dcbnl_flush_dev(dev);
+
+ return NOTIFY_OK;
+ default:
+ return NOTIFY_DONE;
+ }
+}
+
+static struct notifier_block dcbnl_nb __read_mostly = {
+ .notifier_call = dcbnl_netdevice_event,
+};
+
static int __init dcbnl_init(void)
{
+ int err;
+
INIT_LIST_HEAD(&dcb_app_list);
+ err = register_netdevice_notifier(&dcbnl_nb);
+ if (err)
+ return err;
+
rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, NULL);
rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, NULL);
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index a8563745980b..8f2fb14fd4f7 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1238,8 +1238,11 @@ struct sk_buff *inet_gso_segment(struct sk_buff *skb,
}
ops = rcu_dereference(inet_offloads[proto]);
- if (likely(ops && ops->callbacks.gso_segment))
+ if (likely(ops && ops->callbacks.gso_segment)) {
segs = ops->callbacks.gso_segment(skb, features);
+ if (!segs)
+ skb->network_header = skb_mac_header(skb) + nhoff - skb->head;
+ }
if (IS_ERR_OR_NULL(segs))
goto out;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index aeda018e4c49..6dfb964e1ad8 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1561,11 +1561,13 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
if (!copied)
copied = used;
break;
- } else if (used <= len) {
- seq += used;
- copied += used;
- offset += used;
}
+ if (WARN_ON_ONCE(used > len))
+ used = len;
+ seq += used;
+ copied += used;
+ offset += used;
+
/* If recv_actor drops the lock (e.g. TCP splice
* receive) the skb pointer might be invalid when
* getting here: tcp_collapse might have deleted it
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index a36ae90bf613..87763302bce2 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -96,6 +96,8 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
if (likely(ops && ops->callbacks.gso_segment)) {
skb_reset_transport_header(skb);
segs = ops->callbacks.gso_segment(skb, features);
+ if (!segs)
+ skb->network_header = skb_mac_header(skb) + nhoff - skb->head;
}
if (IS_ERR_OR_NULL(segs))
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index d93a98dfe52d..775901abe678 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1274,8 +1274,6 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
if (np->frag_size)
mtu = np->frag_size;
}
- if (mtu < IPV6_MIN_MTU)
- return -EINVAL;
cork->base.fragsize = mtu;
if (dst_allfrag(rt->dst.path))
cork->base.flags |= IPCORK_ALLFRAG;
@@ -1324,8 +1322,6 @@ static int __ip6_append_data(struct sock *sk,
fragheaderlen = sizeof(struct ipv6hdr) + rt->rt6i_nfheader_len +
(opt ? opt->opt_nflen : 0);
- maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
- sizeof(struct frag_hdr);
headersize = sizeof(struct ipv6hdr) +
(opt ? opt->opt_flen + opt->opt_nflen : 0) +
@@ -1333,6 +1329,13 @@ static int __ip6_append_data(struct sock *sk,
sizeof(struct frag_hdr) : 0) +
rt->rt6i_nfheader_len;
+ if (mtu <= fragheaderlen ||
+ ((mtu - fragheaderlen) & ~7) + fragheaderlen <= sizeof(struct frag_hdr))
+ goto emsgsize;
+
+ maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
+ sizeof(struct frag_hdr);
+
/* as per RFC 7112 section 5, the entire IPv6 Header Chain must fit
* the first fragment
*/
diff --git a/net/key/af_key.c b/net/key/af_key.c
index adc93329e6aa..c9cc9f75b099 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1726,7 +1726,7 @@ static int pfkey_register(struct sock *sk, struct sk_buff *skb, const struct sad
xfrm_probe_algs();
- supp_skb = compose_sadb_supported(hdr, GFP_KERNEL);
+ supp_skb = compose_sadb_supported(hdr, GFP_KERNEL | __GFP_ZERO);
if (!supp_skb) {
if (hdr->sadb_msg_satype != SADB_SATYPE_UNSPEC)
pfk->registered &= ~(1<<hdr->sadb_msg_satype);
@@ -2434,7 +2434,7 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, const struct sa
return err;
}
- xp = xfrm_policy_bysel_ctx(net, DUMMY_MARK, XFRM_POLICY_TYPE_MAIN,
+ xp = xfrm_policy_bysel_ctx(net, &dummy_mark, XFRM_POLICY_TYPE_MAIN,
pol->sadb_x_policy_dir - 1, &sel, pol_ctx,
1, &err);
security_xfrm_policy_free(pol_ctx);
@@ -2687,7 +2687,7 @@ static int pfkey_spdget(struct sock *sk, struct sk_buff *skb, const struct sadb_
return -EINVAL;
delete = (hdr->sadb_msg_type == SADB_X_SPDDELETE2);
- xp = xfrm_policy_byid(net, DUMMY_MARK, XFRM_POLICY_TYPE_MAIN,
+ xp = xfrm_policy_byid(net, &dummy_mark, XFRM_POLICY_TYPE_MAIN,
dir, pol->sadb_x_policy_id, delete, &err);
if (xp == NULL)
return -ENOENT;
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index a8866455e8b2..b6dbec793ebb 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -274,6 +274,7 @@ static int llc_ui_autobind(struct socket *sock, struct sockaddr_llc *addr)
{
struct sock *sk = sock->sk;
struct llc_sock *llc = llc_sk(sk);
+ struct net_device *dev = NULL;
struct llc_sap *sap;
int rc = -EINVAL;
@@ -285,14 +286,14 @@ static int llc_ui_autobind(struct socket *sock, struct sockaddr_llc *addr)
goto out;
rc = -ENODEV;
if (sk->sk_bound_dev_if) {
- llc->dev = dev_get_by_index(&init_net, sk->sk_bound_dev_if);
- if (llc->dev && addr->sllc_arphrd != llc->dev->type) {
- dev_put(llc->dev);
- llc->dev = NULL;
+ dev = dev_get_by_index(&init_net, sk->sk_bound_dev_if);
+ if (dev && addr->sllc_arphrd != dev->type) {
+ dev_put(dev);
+ dev = NULL;
}
} else
- llc->dev = dev_getfirstbyhwtype(&init_net, addr->sllc_arphrd);
- if (!llc->dev)
+ dev = dev_getfirstbyhwtype(&init_net, addr->sllc_arphrd);
+ if (!dev)
goto out;
rc = -EUSERS;
llc->laddr.lsap = llc_ui_autoport();
@@ -302,6 +303,11 @@ static int llc_ui_autobind(struct socket *sock, struct sockaddr_llc *addr)
sap = llc_sap_open(llc->laddr.lsap, NULL);
if (!sap)
goto out;
+
+ /* Note: We do not expect errors from this point. */
+ llc->dev = dev;
+ dev = NULL;
+
memcpy(llc->laddr.mac, llc->dev->dev_addr, IFHWADDRLEN);
memcpy(&llc->addr, addr, sizeof(llc->addr));
/* assign new connection to its SAP */
@@ -309,6 +315,7 @@ static int llc_ui_autobind(struct socket *sock, struct sockaddr_llc *addr)
sock_reset_flag(sk, SOCK_ZAPPED);
rc = 0;
out:
+ dev_put(dev);
return rc;
}
@@ -331,6 +338,7 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
struct sockaddr_llc *addr = (struct sockaddr_llc *)uaddr;
struct sock *sk = sock->sk;
struct llc_sock *llc = llc_sk(sk);
+ struct net_device *dev = NULL;
struct llc_sap *sap;
int rc = -EINVAL;
@@ -347,25 +355,26 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
rc = -ENODEV;
rcu_read_lock();
if (sk->sk_bound_dev_if) {
- llc->dev = dev_get_by_index_rcu(&init_net, sk->sk_bound_dev_if);
- if (llc->dev) {
+ dev = dev_get_by_index_rcu(&init_net, sk->sk_bound_dev_if);
+ if (dev) {
if (is_zero_ether_addr(addr->sllc_mac))
- memcpy(addr->sllc_mac, llc->dev->dev_addr,
+ memcpy(addr->sllc_mac, dev->dev_addr,
IFHWADDRLEN);
- if (addr->sllc_arphrd != llc->dev->type ||
+ if (addr->sllc_arphrd != dev->type ||
!ether_addr_equal(addr->sllc_mac,
- llc->dev->dev_addr)) {
+ dev->dev_addr)) {
rc = -EINVAL;
- llc->dev = NULL;
+ dev = NULL;
}
}
- } else
- llc->dev = dev_getbyhwaddr_rcu(&init_net, addr->sllc_arphrd,
+ } else {
+ dev = dev_getbyhwaddr_rcu(&init_net, addr->sllc_arphrd,
addr->sllc_mac);
- if (llc->dev)
- dev_hold(llc->dev);
+ }
+ if (dev)
+ dev_hold(dev);
rcu_read_unlock();
- if (!llc->dev)
+ if (!dev)
goto out;
if (!addr->sllc_sap) {
rc = -EUSERS;
@@ -398,6 +407,11 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
goto out_put;
}
}
+
+ /* Note: We do not expect errors from this point. */
+ llc->dev = dev;
+ dev = NULL;
+
llc->laddr.lsap = addr->sllc_sap;
memcpy(llc->laddr.mac, addr->sllc_mac, IFHWADDRLEN);
memcpy(&llc->addr, addr, sizeof(llc->addr));
@@ -408,6 +422,7 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
out_put:
llc_sap_put(sap);
out:
+ dev_put(dev);
release_sock(sk);
return rc;
}
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index f37fbc71fc1d..091ac3a7b186 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1776,13 +1776,11 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
const struct mesh_setup *setup)
{
u8 *new_ie;
- const u8 *old_ie;
struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
struct ieee80211_sub_if_data, u.mesh);
/* allocate information elements */
new_ie = NULL;
- old_ie = ifmsh->ie;
if (setup->ie_len) {
new_ie = kmemdup(setup->ie, setup->ie_len,
@@ -1792,7 +1790,6 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
}
ifmsh->ie_len = setup->ie_len;
ifmsh->ie = new_ie;
- kfree(old_ie);
/* now copy the rest of the setup parameters */
ifmsh->mesh_id_len = setup->mesh_id_len;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 96b2333496b5..a3ac9f57a489 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2607,13 +2607,13 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
ether_addr_equal(sdata->vif.addr, hdr->addr3))
return RX_CONTINUE;
- ac = ieee80211_select_queue_80211(sdata, skb, hdr);
+ ac = ieee802_1d_to_ac[skb->priority];
q = sdata->vif.hw_queue[ac];
if (ieee80211_queue_stopped(&local->hw, q)) {
IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion);
return RX_DROP_MONITOR;
}
- skb_set_queue_mapping(skb, q);
+ skb_set_queue_mapping(skb, ac);
if (!--mesh_hdr->ttl) {
if (!is_multicast_ether_addr(hdr->addr1))
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 69f687740c76..9e9ce570bb9e 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -390,8 +390,8 @@ static void tcp_options(const struct sk_buff *skb,
length, buff);
BUG_ON(ptr == NULL);
- state->td_scale =
- state->flags = 0;
+ state->td_scale = 0;
+ state->flags &= IP_CT_TCP_FLAG_BE_LIBERAL;
while (length > 0) {
int opcode=*ptr++;
@@ -806,6 +806,16 @@ static unsigned int *tcp_get_timeouts(struct net *net)
return tcp_pernet(net)->timeouts;
}
+static void nf_ct_tcp_state_reset(struct ip_ct_tcp_state *state)
+{
+ state->td_end = 0;
+ state->td_maxend = 0;
+ state->td_maxwin = 0;
+ state->td_maxack = 0;
+ state->td_scale = 0;
+ state->flags &= IP_CT_TCP_FLAG_BE_LIBERAL;
+}
+
/* Returns verdict for packet, or -1 for invalid. */
static int tcp_packet(struct nf_conn *ct,
const struct sk_buff *skb,
@@ -907,8 +917,7 @@ static int tcp_packet(struct nf_conn *ct,
ct->proto.tcp.last_flags &= ~IP_CT_EXP_CHALLENGE_ACK;
ct->proto.tcp.seen[ct->proto.tcp.last_dir].flags =
ct->proto.tcp.last_flags;
- memset(&ct->proto.tcp.seen[dir], 0,
- sizeof(struct ip_ct_tcp_state));
+ nf_ct_tcp_state_reset(&ct->proto.tcp.seen[dir]);
break;
}
ct->proto.tcp.last_index = index;
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 8f08d759844a..333ea2368101 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -44,6 +44,15 @@ void nf_unregister_queue_handler(struct net *net)
}
EXPORT_SYMBOL(nf_unregister_queue_handler);
+static void nf_queue_sock_put(struct sock *sk)
+{
+#ifdef CONFIG_INET
+ sock_gen_put(sk);
+#else
+ sock_put(sk);
+#endif
+}
+
void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
{
struct nf_hook_state *state = &entry->state;
@@ -54,7 +63,7 @@ void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
if (state->out)
dev_put(state->out);
if (state->sk)
- sock_put(state->sk);
+ nf_queue_sock_put(state->sk);
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (entry->skb->nf_bridge) {
struct net_device *physdev;
@@ -71,10 +80,13 @@ void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
EXPORT_SYMBOL_GPL(nf_queue_entry_release_refs);
/* Bump dev refs so they don't vanish while packet is out */
-void nf_queue_entry_get_refs(struct nf_queue_entry *entry)
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry)
{
struct nf_hook_state *state = &entry->state;
+ if (state->sk && !atomic_inc_not_zero(&state->sk->sk_refcnt))
+ return false;
+
if (state->in)
dev_hold(state->in);
if (state->out)
@@ -93,6 +105,7 @@ void nf_queue_entry_get_refs(struct nf_queue_entry *entry)
dev_hold(physdev);
}
#endif
+ return true;
}
EXPORT_SYMBOL_GPL(nf_queue_entry_get_refs);
@@ -139,7 +152,11 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
.size = sizeof(*entry) + afinfo->route_key_size,
};
- nf_queue_entry_get_refs(entry);
+ if (!nf_queue_entry_get_refs(entry)) {
+ kfree(entry);
+ return -ENOTCONN;
+ }
+
skb_dst_force(skb);
afinfo->saveroute(skb, entry);
status = qh->outfn(entry, queuenum);
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index 9d593ecd8e87..fb14082151ce 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -127,7 +127,7 @@ nft_do_chain(struct nft_pktinfo *pkt, void *priv)
const struct net *net = pkt->net;
const struct nft_rule *rule;
const struct nft_expr *expr, *last;
- struct nft_regs regs;
+ struct nft_regs regs = {};
unsigned int stackptr = 0;
struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE];
struct nft_stats *stats;
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index a35510565d4d..66814a9d030c 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -673,9 +673,15 @@ static struct nf_queue_entry *
nf_queue_entry_dup(struct nf_queue_entry *e)
{
struct nf_queue_entry *entry = kmemdup(e, e->size, GFP_ATOMIC);
- if (entry)
- nf_queue_entry_get_refs(entry);
- return entry;
+
+ if (!entry)
+ return NULL;
+
+ if (nf_queue_entry_get_refs(entry))
+ return entry;
+
+ kfree(entry);
+ return NULL;
}
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 13d69cbd14c2..a8674e9ff37b 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -161,6 +161,8 @@ static const struct rhashtable_params netlink_rhashtable_params;
static inline u32 netlink_group_mask(u32 group)
{
+ if (group > 32)
+ return 0;
return group ? 1 << (group - 1) : 0;
}
@@ -2192,6 +2194,13 @@ static int netlink_dump(struct sock *sk)
* single netdev. The outcome is MSG_TRUNC error.
*/
skb_reserve(skb, skb_tailroom(skb) - alloc_size);
+
+ /* Make sure malicious BPF programs can not read unitialized memory
+ * from skb->head -> skb->data
+ */
+ skb_reset_network_header(skb);
+ skb_reset_mac_header(skb);
+
netlink_skb_set_owner_r(skb, sk);
if (nlk->dump_done_errno > 0)
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 84eedbd5716d..df90872fcf90 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -561,6 +561,10 @@ static int nci_close_device(struct nci_dev *ndev)
mutex_lock(&ndev->req_lock);
if (!test_and_clear_bit(NCI_UP, &ndev->flags)) {
+ /* Need to flush the cmd wq in case
+ * there is a queued/running cmd_work
+ */
+ flush_workqueue(ndev->cmd_wq);
del_timer_sync(&ndev->cmd_timer);
del_timer_sync(&ndev->data_timer);
mutex_unlock(&ndev->req_lock);
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 5fa7b2569a3a..4d9b9d959faf 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -391,12 +391,43 @@ static void set_ipv6_addr(struct sk_buff *skb, u8 l4_proto,
memcpy(addr, new_addr, sizeof(__be32[4]));
}
-static void set_ipv6_fl(struct ipv6hdr *nh, u32 fl, u32 mask)
+static void set_ipv6_dsfield(struct sk_buff *skb, struct ipv6hdr *nh, u8 ipv6_tclass, u8 mask)
{
+ u8 old_ipv6_tclass = ipv6_get_dsfield(nh);
+
+ ipv6_tclass = OVS_MASKED(old_ipv6_tclass, ipv6_tclass, mask);
+
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ csum_replace(&skb->csum, (__force __wsum)(old_ipv6_tclass << 12),
+ (__force __wsum)(ipv6_tclass << 12));
+
+ ipv6_change_dsfield(nh, ~mask, ipv6_tclass);
+}
+
+static void set_ipv6_fl(struct sk_buff *skb, struct ipv6hdr *nh, u32 fl, u32 mask)
+{
+ u32 ofl;
+
+ ofl = nh->flow_lbl[0] << 16 | nh->flow_lbl[1] << 8 | nh->flow_lbl[2];
+ fl = OVS_MASKED(ofl, fl, mask);
+
/* Bits 21-24 are always unmasked, so this retains their values. */
- OVS_SET_MASKED(nh->flow_lbl[0], (u8)(fl >> 16), (u8)(mask >> 16));
- OVS_SET_MASKED(nh->flow_lbl[1], (u8)(fl >> 8), (u8)(mask >> 8));
- OVS_SET_MASKED(nh->flow_lbl[2], (u8)fl, (u8)mask);
+ nh->flow_lbl[0] = (u8)(fl >> 16);
+ nh->flow_lbl[1] = (u8)(fl >> 8);
+ nh->flow_lbl[2] = (u8)fl;
+
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ csum_replace(&skb->csum, (__force __wsum)htonl(ofl), (__force __wsum)htonl(fl));
+}
+
+static void set_ipv6_ttl(struct sk_buff *skb, struct ipv6hdr *nh, u8 new_ttl, u8 mask)
+{
+ new_ttl = OVS_MASKED(nh->hop_limit, new_ttl, mask);
+
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ csum_replace(&skb->csum, (__force __wsum)(nh->hop_limit << 8),
+ (__force __wsum)(new_ttl << 8));
+ nh->hop_limit = new_ttl;
}
static void set_ip_ttl(struct sk_buff *skb, struct iphdr *nh, u8 new_ttl,
@@ -514,18 +545,17 @@ static int set_ipv6(struct sk_buff *skb, struct sw_flow_key *flow_key,
}
}
if (mask->ipv6_tclass) {
- ipv6_change_dsfield(nh, ~mask->ipv6_tclass, key->ipv6_tclass);
+ set_ipv6_dsfield(skb, nh, key->ipv6_tclass, mask->ipv6_tclass);
flow_key->ip.tos = ipv6_get_dsfield(nh);
}
if (mask->ipv6_label) {
- set_ipv6_fl(nh, ntohl(key->ipv6_label),
+ set_ipv6_fl(skb, nh, ntohl(key->ipv6_label),
ntohl(mask->ipv6_label));
flow_key->ipv6.label =
*(__be32 *)nh & htonl(IPV6_FLOWINFO_FLOWLABEL);
}
if (mask->ipv6_hlimit) {
- OVS_SET_MASKED(nh->hop_limit, key->ipv6_hlimit,
- mask->ipv6_hlimit);
+ set_ipv6_ttl(skb, nh, key->ipv6_hlimit, mask->ipv6_hlimit);
flow_key->ip.ttl = nh->hop_limit;
}
return 0;
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 50ea76180afa..26921f755f3a 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -1713,8 +1713,8 @@ static int __ovs_nla_put_key(const struct sw_flow_key *swkey,
icmpv6_key->icmpv6_type = ntohs(output->tp.src);
icmpv6_key->icmpv6_code = ntohs(output->tp.dst);
- if (icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_SOLICITATION ||
- icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_ADVERTISEMENT) {
+ if (swkey->tp.src == htons(NDISC_NEIGHBOUR_SOLICITATION) ||
+ swkey->tp.src == htons(NDISC_NEIGHBOUR_ADVERTISEMENT)) {
struct ovs_key_nd *nd_key;
nla = nla_reserve(skb, OVS_KEY_ATTR_ND, sizeof(*nd_key));
@@ -1863,7 +1863,7 @@ static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa,
new_acts_size = max(next_offset + req_size, ksize(*sfa) * 2);
if (new_acts_size > MAX_ACTIONS_BUFSIZE) {
- if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size) {
+ if ((next_offset + req_size) > MAX_ACTIONS_BUFSIZE) {
OVS_NLERR(log, "Flow action size exceeds max %u",
MAX_ACTIONS_BUFSIZE);
return ERR_PTR(-EMSGSIZE);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4256ddf805a2..f242e2613346 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2245,8 +2245,11 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
copy_skb = skb_get(skb);
skb_head = skb->data;
}
- if (copy_skb)
+ if (copy_skb) {
+ memset(&PACKET_SKB_CB(copy_skb)->sa.ll, 0,
+ sizeof(PACKET_SKB_CB(copy_skb)->sa.ll));
skb_set_owner_r(copy_skb, sk);
+ }
}
snaplen = po->rx_ring.frame_size - macoff;
if ((int)snaplen < 0) {
@@ -2806,8 +2809,9 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
status = TP_STATUS_SEND_REQUEST;
err = po->xmit(skb);
- if (unlikely(err > 0)) {
- err = net_xmit_errno(err);
+ if (unlikely(err != 0)) {
+ if (err > 0)
+ err = net_xmit_errno(err);
if (err && __packet_get_status(po, ph) ==
TP_STATUS_AVAILABLE) {
/* skb was destructed already */
@@ -3007,8 +3011,12 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
skb->no_fcs = 1;
err = po->xmit(skb);
- if (err > 0 && (err = net_xmit_errno(err)) != 0)
- goto out_unlock;
+ if (unlikely(err != 0)) {
+ if (err > 0)
+ err = net_xmit_errno(err);
+ if (err)
+ goto out_unlock;
+ }
dev_put(dev);
@@ -3423,6 +3431,8 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
sock_recv_ts_and_drops(msg, sk, skb);
if (msg->msg_name) {
+ const size_t max_len = min(sizeof(skb->cb),
+ sizeof(struct sockaddr_storage));
int copy_len;
/* If the address length field is there to be filled
@@ -3445,6 +3455,10 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
msg->msg_namelen = sizeof(struct sockaddr_ll);
}
}
+ if (WARN_ON_ONCE(copy_len > max_len)) {
+ copy_len = max_len;
+ msg->msg_namelen = copy_len;
+ }
memcpy(msg->msg_name, &PACKET_SKB_CB(skb)->sa, copy_len);
}
diff --git a/net/sctp/sctp_diag.c b/net/sctp/sctp_diag.c
index e8f56b7c5afb..a044964fa802 100644
--- a/net/sctp/sctp_diag.c
+++ b/net/sctp/sctp_diag.c
@@ -45,10 +45,6 @@ static void inet_diag_msg_sctpasoc_fill(struct inet_diag_msg *r,
r->idiag_timer = SCTP_EVENT_TIMEOUT_T3_RTX;
r->idiag_retrans = asoc->rtx_data_chunks;
r->idiag_expires = jiffies_to_msecs(t3_rtx->expires - jiffies);
- } else {
- r->idiag_timer = 0;
- r->idiag_retrans = 0;
- r->idiag_expires = 0;
}
}
@@ -128,13 +124,14 @@ static int inet_sctp_diag_fill(struct sock *sk, struct sctp_association *asoc,
r = nlmsg_data(nlh);
BUG_ON(!sk_fullsock(sk));
+ r->idiag_timer = 0;
+ r->idiag_retrans = 0;
+ r->idiag_expires = 0;
if (asoc) {
inet_diag_msg_sctpasoc_fill(r, sk, asoc);
} else {
inet_diag_msg_common_fill(r, sk);
r->idiag_state = sk->sk_state;
- r->idiag_timer = 0;
- r->idiag_retrans = 0;
}
if (inet_diag_msg_attrs_fill(sk, skb, r, ext, user_ns, net_admin))
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 00d95fefdc6f..ccb9fa5812d8 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -883,8 +883,10 @@ int rpc_malloc(struct rpc_task *task)
struct rpc_buffer *buf;
gfp_t gfp = GFP_NOIO | __GFP_NOWARN;
+ if (RPC_IS_ASYNC(task))
+ gfp = GFP_NOWAIT | __GFP_NOWARN;
if (RPC_IS_SWAPPER(task))
- gfp = __GFP_MEMALLOC | GFP_NOWAIT | __GFP_NOWARN;
+ gfp |= __GFP_MEMALLOC;
size += sizeof(struct rpc_buffer);
if (size <= RPC_BUFFER_MAXSIZE)
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 9491fc81d50a..ff263ece44a7 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1446,7 +1446,14 @@ static void xprt_destroy(struct rpc_xprt *xprt)
/* Exclude transport connect/disconnect handlers */
wait_on_bit_lock(&xprt->state, XPRT_LOCKED, TASK_UNINTERRUPTIBLE);
+ /*
+ * xprt_schedule_autodisconnect() can run after XPRT_LOCKED
+ * is cleared. We use ->transport_lock to ensure the mod_timer()
+ * can only run *before* del_time_sync(), never after.
+ */
+ spin_lock(&xprt->transport_lock);
del_timer_sync(&xprt->timer);
+ spin_unlock(&xprt->transport_lock);
rpc_xprt_debugfs_unregister(xprt);
rpc_destroy_wait_queue(&xprt->binding);
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 3ea3bb64b6d5..f308f286e9aa 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -577,8 +577,10 @@ xprt_rdma_allocate(struct rpc_task *task)
return -ENOMEM;
flags = RPCRDMA_DEF_GFP;
+ if (RPC_IS_ASYNC(task))
+ flags = GFP_NOWAIT | __GFP_NOWARN;
if (RPC_IS_SWAPPER(task))
- flags = __GFP_MEMALLOC | GFP_NOWAIT | __GFP_NOWARN;
+ flags |= __GFP_MEMALLOC;
if (!rpcrdma_get_rdmabuf(r_xprt, req, flags))
goto out_fail;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ab8bca39afa3..562e138deba2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -14068,7 +14068,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
wdev->chandef = *chandef;
wdev->preset_chandef = *chandef;
- if (wdev->iftype == NL80211_IFTYPE_STATION &&
+ if ((wdev->iftype == NL80211_IFTYPE_STATION ||
+ wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
!WARN_ON(!wdev->current_bss))
wdev->current_bss->pub.channel = chandef->chan;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index c23c04d38a82..cd0c800b9072 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1795,10 +1795,15 @@ void x25_kill_by_neigh(struct x25_neigh *nb)
write_lock_bh(&x25_list_lock);
- sk_for_each(s, &x25_list)
- if (x25_sk(s)->neighbour == nb)
+ sk_for_each(s, &x25_list) {
+ if (x25_sk(s)->neighbour == nb) {
+ write_unlock_bh(&x25_list_lock);
+ lock_sock(s);
x25_disconnect(s, ENETUNREACH, 0, 0);
-
+ release_sock(s);
+ write_lock_bh(&x25_list_lock);
+ }
+ }
write_unlock_bh(&x25_list_lock);
/* Remove any related forwards */
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index b00ed36b9aac..9179b47e8b61 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -754,14 +754,10 @@ static void xfrm_policy_requeue(struct xfrm_policy *old,
spin_unlock_bh(&pq->hold_queue.lock);
}
-static bool xfrm_policy_mark_match(struct xfrm_policy *policy,
- struct xfrm_policy *pol)
+static inline bool xfrm_policy_mark_match(const struct xfrm_mark *mark,
+ struct xfrm_policy *pol)
{
- if (policy->mark.v == pol->mark.v &&
- policy->priority == pol->priority)
- return true;
-
- return false;
+ return mark->v == pol->mark.v && mark->m == pol->mark.m;
}
int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
@@ -779,7 +775,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
hlist_for_each_entry(pol, chain, bydst) {
if (pol->type == policy->type &&
!selector_cmp(&pol->selector, &policy->selector) &&
- xfrm_policy_mark_match(policy, pol) &&
+ xfrm_policy_mark_match(&policy->mark, pol) &&
xfrm_sec_ctx_match(pol->security, policy->security) &&
!WARN_ON(delpol)) {
if (excl) {
@@ -830,8 +826,8 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
}
EXPORT_SYMBOL(xfrm_policy_insert);
-struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark, u8 type,
- int dir, struct xfrm_selector *sel,
+struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, const struct xfrm_mark *mark,
+ u8 type, int dir, struct xfrm_selector *sel,
struct xfrm_sec_ctx *ctx, int delete,
int *err)
{
@@ -844,7 +840,7 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark, u8 type,
ret = NULL;
hlist_for_each_entry(pol, chain, bydst) {
if (pol->type == type &&
- (mark & pol->mark.m) == pol->mark.v &&
+ xfrm_policy_mark_match(mark, pol) &&
!selector_cmp(sel, &pol->selector) &&
xfrm_sec_ctx_match(ctx, pol->security)) {
xfrm_pol_hold(pol);
@@ -869,8 +865,8 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark, u8 type,
}
EXPORT_SYMBOL(xfrm_policy_bysel_ctx);
-struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8 type,
- int dir, u32 id, int delete, int *err)
+struct xfrm_policy *xfrm_policy_byid(struct net *net, const struct xfrm_mark *mark,
+ u8 type, int dir, u32 id, int delete, int *err)
{
struct xfrm_policy *pol, *ret;
struct hlist_head *chain;
@@ -885,7 +881,7 @@ struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8 type,
ret = NULL;
hlist_for_each_entry(pol, chain, byidx) {
if (pol->type == type && pol->index == id &&
- (mark & pol->mark.m) == pol->mark.v) {
+ xfrm_policy_mark_match(mark, pol)) {
xfrm_pol_hold(pol);
if (delete) {
*err = security_xfrm_policy_delete(
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 4d19f2ff6e05..73b4e7c0d336 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1238,9 +1238,6 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig)
memcpy(&x->mark, &orig->mark, sizeof(x->mark));
- if (xfrm_init_state(x) < 0)
- goto error;
-
x->props.flags = orig->props.flags;
x->props.extra_flags = orig->props.extra_flags;
@@ -1317,6 +1314,11 @@ struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
if (!xc)
return NULL;
+ xc->props.family = m->new_family;
+
+ if (xfrm_init_state(xc) < 0)
+ goto error;
+
memcpy(&xc->id.daddr, &m->new_daddr, sizeof(xc->id.daddr));
memcpy(&xc->props.saddr, &m->new_saddr, sizeof(xc->props.saddr));
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 48139e1a0ac9..eaed74522197 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1777,7 +1777,6 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct km_event c;
int delete;
struct xfrm_mark m;
- u32 mark = xfrm_mark_get(attrs, &m);
p = nlmsg_data(nlh);
delete = nlh->nlmsg_type == XFRM_MSG_DELPOLICY;
@@ -1790,8 +1789,10 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err)
return err;
+ xfrm_mark_get(attrs, &m);
+
if (p->index)
- xp = xfrm_policy_byid(net, mark, type, p->dir, p->index, delete, &err);
+ xp = xfrm_policy_byid(net, &m, type, p->dir, p->index, delete, &err);
else {
struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_sec_ctx *ctx;
@@ -1808,7 +1809,7 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err)
return err;
}
- xp = xfrm_policy_bysel_ctx(net, mark, type, p->dir, &p->sel,
+ xp = xfrm_policy_bysel_ctx(net, &m, type, p->dir, &p->sel,
ctx, delete, &err);
security_xfrm_policy_free(ctx);
}
@@ -2072,7 +2073,6 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
u8 type = XFRM_POLICY_TYPE_MAIN;
int err = -ENOENT;
struct xfrm_mark m;
- u32 mark = xfrm_mark_get(attrs, &m);
err = copy_from_user_policy_type(&type, attrs);
if (err)
@@ -2082,8 +2082,10 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err)
return err;
+ xfrm_mark_get(attrs, &m);
+
if (p->index)
- xp = xfrm_policy_byid(net, mark, type, p->dir, p->index, 0, &err);
+ xp = xfrm_policy_byid(net, &m, type, p->dir, p->index, 0, &err);
else {
struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_sec_ctx *ctx;
@@ -2100,7 +2102,7 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err)
return err;
}
- xp = xfrm_policy_bysel_ctx(net, mark, type, p->dir,
+ xp = xfrm_policy_bysel_ctx(net, &m, type, p->dir,
&p->sel, ctx, 0, &err);
security_xfrm_policy_free(ctx);
}
diff --git a/scripts/gcc-plugins/latent_entropy_plugin.c b/scripts/gcc-plugins/latent_entropy_plugin.c
index dff390f692a2..4435263766ac 100644
--- a/scripts/gcc-plugins/latent_entropy_plugin.c
+++ b/scripts/gcc-plugins/latent_entropy_plugin.c
@@ -86,25 +86,31 @@ static struct plugin_info latent_entropy_plugin_info = {
.help = "disable\tturn off latent entropy instrumentation\n",
};
-static unsigned HOST_WIDE_INT seed;
-/*
- * get_random_seed() (this is a GCC function) generates the seed.
- * This is a simple random generator without any cryptographic security because
- * the entropy doesn't come from here.
- */
+static unsigned HOST_WIDE_INT deterministic_seed;
+static unsigned HOST_WIDE_INT rnd_buf[32];
+static size_t rnd_idx = ARRAY_SIZE(rnd_buf);
+static int urandom_fd = -1;
+
static unsigned HOST_WIDE_INT get_random_const(void)
{
- unsigned int i;
- unsigned HOST_WIDE_INT ret = 0;
-
- for (i = 0; i < 8 * sizeof(ret); i++) {
- ret = (ret << 1) | (seed & 1);
- seed >>= 1;
- if (ret & 1)
- seed ^= 0xD800000000000000ULL;
+ if (deterministic_seed) {
+ unsigned HOST_WIDE_INT w = deterministic_seed;
+ w ^= w << 13;
+ w ^= w >> 7;
+ w ^= w << 17;
+ deterministic_seed = w;
+ return deterministic_seed;
}
- return ret;
+ if (urandom_fd < 0) {
+ urandom_fd = open("/dev/urandom", O_RDONLY);
+ gcc_assert(urandom_fd >= 0);
+ }
+ if (rnd_idx >= ARRAY_SIZE(rnd_buf)) {
+ gcc_assert(read(urandom_fd, rnd_buf, sizeof(rnd_buf)) == sizeof(rnd_buf));
+ rnd_idx = 0;
+ }
+ return rnd_buf[rnd_idx++];
}
static tree tree_get_random_const(tree type)
@@ -556,8 +562,6 @@ static void latent_entropy_start_unit(void *gcc_data __unused,
tree type, id;
int quals;
- seed = get_random_seed(false);
-
if (in_lto_p)
return;
@@ -594,6 +598,12 @@ __visible int plugin_init(struct plugin_name_args *plugin_info,
struct register_pass_info latent_entropy_pass_info;
+ /*
+ * Call get_random_seed() with noinit=true, so that this returns
+ * 0 in the case where no seed has been passed via -frandom-seed.
+ */
+ deterministic_seed = get_random_seed(true);
+
latent_entropy_pass_info.pass = make_latent_entropy_pass();
latent_entropy_pass_info.reference_pass_name = "optimized";
latent_entropy_pass_info.ref_pass_instance_number = 1;
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 9abcdf2e8dfe..62b0552b7b71 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2147,7 +2147,7 @@ static void add_intree_flag(struct buffer *b, int is_intree)
/* Cannot check for assembler */
static void add_retpoline(struct buffer *b)
{
- buf_printf(b, "\n#ifdef RETPOLINE\n");
+ buf_printf(b, "\n#ifdef CONFIG_RETPOLINE\n");
buf_printf(b, "MODULE_INFO(retpoline, \"Y\");\n");
buf_printf(b, "#endif\n");
}
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 56e354fcdfc6..5304dd49e054 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -344,7 +344,7 @@ int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
int rc;
struct xfrm_sec_ctx *ctx;
char *ctx_str = NULL;
- int str_len;
+ u32 str_len;
if (!polsec)
return 0;
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 589c1c2ae6db..84ed47195cdd 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2567,7 +2567,7 @@ static int smk_ipv6_check(struct smack_known *subject,
#ifdef CONFIG_AUDIT
smk_ad_init_net(&ad, __func__, LSM_AUDIT_DATA_NET, &net);
ad.a.u.net->family = PF_INET6;
- ad.a.u.net->dport = ntohs(address->sin6_port);
+ ad.a.u.net->dport = address->sin6_port;
if (act == SMK_RECEIVING)
ad.a.u.net->v6info.saddr = address->sin6_addr;
else
diff --git a/security/tomoyo/load_policy.c b/security/tomoyo/load_policy.c
index 078fac0bb4c5..6766b92cb572 100644
--- a/security/tomoyo/load_policy.c
+++ b/security/tomoyo/load_policy.c
@@ -23,7 +23,7 @@ static const char *tomoyo_loader;
static int __init tomoyo_loader_setup(char *str)
{
tomoyo_loader = str;
- return 0;
+ return 1;
}
__setup("TOMOYO_loader=", tomoyo_loader_setup);
@@ -62,7 +62,7 @@ static const char *tomoyo_trigger;
static int __init tomoyo_trigger_setup(char *str)
{
tomoyo_trigger = str;
- return 0;
+ return 1;
}
__setup("TOMOYO_trigger=", tomoyo_trigger_setup);
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index 53dc37357bca..92519e0477c8 100644
--- a/sound/core/pcm_misc.c
+++ b/sound/core/pcm_misc.c
@@ -412,7 +412,7 @@ int snd_pcm_format_set_silence(snd_pcm_format_t format, void *data, unsigned int
return 0;
width = pcm_formats[(INT)format].phys; /* physical width */
pat = pcm_formats[(INT)format].silence;
- if (! width)
+ if (!width || !pat)
return -EINVAL;
/* signed or 1 byte data */
if (pcm_formats[(INT)format].signd == 1 || width <= 8) {
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 6fa6c268c96d..67a446ce9d3d 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1489,21 +1489,25 @@ static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state)
int err = substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL);
if (err < 0)
return err;
+ snd_pcm_stream_lock_irq(substream);
runtime->hw_ptr_base = 0;
runtime->hw_ptr_interrupt = runtime->status->hw_ptr -
runtime->status->hw_ptr % runtime->period_size;
runtime->silence_start = runtime->status->hw_ptr;
runtime->silence_filled = 0;
+ snd_pcm_stream_unlock_irq(substream);
return 0;
}
static void snd_pcm_post_reset(struct snd_pcm_substream *substream, int state)
{
struct snd_pcm_runtime *runtime = substream->runtime;
+ snd_pcm_stream_lock_irq(substream);
runtime->control->appl_ptr = runtime->status->hw_ptr;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
runtime->silence_size > 0)
snd_pcm_playback_silence(substream, ULONG_MAX);
+ snd_pcm_stream_unlock_irq(substream);
}
static const struct action_ops snd_pcm_action_reset = {
diff --git a/sound/firewire/fcp.c b/sound/firewire/fcp.c
index cce19768f43d..8209856293d3 100644
--- a/sound/firewire/fcp.c
+++ b/sound/firewire/fcp.c
@@ -234,9 +234,7 @@ int fcp_avc_transaction(struct fw_unit *unit,
t.response_match_bytes = response_match_bytes;
t.state = STATE_PENDING;
init_waitqueue_head(&t.wait);
-
- if (*(const u8 *)command == 0x00 || *(const u8 *)command == 0x03)
- t.deferrable = true;
+ t.deferrable = (*(const u8 *)command == 0x00 || *(const u8 *)command == 0x03);
spin_lock_irq(&transactions_lock);
list_add_tail(&t.list, &transactions);
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index c67d379cb6d6..9d4a2c66ea16 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -557,7 +557,7 @@ static int snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
static int dev;
int err;
struct snd_card *card;
- struct pnp_dev *cdev;
+ struct pnp_dev *cdev, *iter;
char cid[PNP_ID_LEN];
if (pnp_device_is_isapnp(pdev))
@@ -573,9 +573,11 @@ static int snd_cs423x_pnpbios_detect(struct pnp_dev *pdev,
strcpy(cid, pdev->id[0].id);
cid[5] = '1';
cdev = NULL;
- list_for_each_entry(cdev, &(pdev->protocol->devices), protocol_list) {
- if (!strcmp(cdev->id[0].id, cid))
+ list_for_each_entry(iter, &(pdev->protocol->devices), protocol_list) {
+ if (!strcmp(iter->id[0].id, cid)) {
+ cdev = iter;
break;
+ }
}
err = snd_cs423x_card_new(&pdev->dev, dev, &card);
if (err < 0)
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index c4840fda44b4..a7f1e4ef3f88 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -958,8 +958,8 @@ static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct
int codec = kcontrol->private_value & 3;
mutex_lock(&ac97->page_mutex);
- ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
- ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
+ ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
+ ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
mutex_unlock(&ac97->page_mutex);
return 0;
}
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 73f593526b2d..0024145a7b5b 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -315,7 +315,6 @@ MODULE_PARM_DESC(joystick_port, "Joystick port address.");
#define CM_MICGAINZ 0x01 /* mic boost */
#define CM_MICGAINZ_SHIFT 0
-#define CM_REG_MIXER3 0x24
#define CM_REG_AUX_VOL 0x26
#define CM_VAUXL_MASK 0xf0
#define CM_VAUXR_MASK 0x0f
@@ -3323,7 +3322,7 @@ static void snd_cmipci_remove(struct pci_dev *pci)
*/
static unsigned char saved_regs[] = {
CM_REG_FUNCTRL1, CM_REG_CHFORMAT, CM_REG_LEGACY_CTRL, CM_REG_MISC_CTRL,
- CM_REG_MIXER0, CM_REG_MIXER1, CM_REG_MIXER2, CM_REG_MIXER3, CM_REG_PLL,
+ CM_REG_MIXER0, CM_REG_MIXER1, CM_REG_MIXER2, CM_REG_AUX_VOL, CM_REG_PLL,
CM_REG_CH0_FRAME1, CM_REG_CH0_FRAME2,
CM_REG_CH1_FRAME1, CM_REG_CH1_FRAME2, CM_REG_EXT_MISC,
CM_REG_INT_STATUS, CM_REG_INT_HLDCLR, CM_REG_FUNCTRL0,
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 16e459aedffe..5958aafac8eb 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -296,7 +296,10 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
/* Enable PMC peripheral clock for this SSC */
pr_debug("atmel_ssc_dai: Starting clock\n");
- clk_enable(ssc_p->ssc->clk);
+ ret = clk_enable(ssc_p->ssc->clk);
+ if (ret)
+ return ret;
+
ssc_p->mck_rate = clk_get_rate(ssc_p->ssc->clk);
/* Reset the SSC unless initialized to keep it in a clean state */
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index d7469cdd90dc..39365319c351 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -226,6 +226,7 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
if (!cpu_np) {
dev_err(&pdev->dev, "dai and pcm info missing\n");
+ of_node_put(codec_np);
return -EINVAL;
}
at91sam9g20ek_dai.cpu_of_node = cpu_np;
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index 2efc5b41ad0f..6d719392cdbe 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -1536,18 +1536,38 @@ static int wm8350_codec_probe(struct snd_soc_codec *codec)
wm8350_clear_bits(wm8350, WM8350_JACK_DETECT,
WM8350_JDL_ENA | WM8350_JDR_ENA);
- wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L,
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L,
wm8350_hpl_jack_handler, 0, "Left jack detect",
priv);
- wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R,
+ if (ret != 0)
+ goto err;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R,
wm8350_hpr_jack_handler, 0, "Right jack detect",
priv);
- wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICSCD,
+ if (ret != 0)
+ goto free_jck_det_l;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICSCD,
wm8350_mic_handler, 0, "Microphone short", priv);
- wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICD,
+ if (ret != 0)
+ goto free_jck_det_r;
+
+ ret = wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICD,
wm8350_mic_handler, 0, "Microphone detect", priv);
+ if (ret != 0)
+ goto free_micscd;
return 0;
+
+free_micscd:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_MICSCD, priv);
+free_jck_det_r:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R, priv);
+free_jck_det_l:
+ wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L, priv);
+err:
+ return ret;
}
static int wm8350_codec_remove(struct snd_soc_codec *codec)
diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c
index 384961651904..e5f61f1499c6 100644
--- a/sound/soc/davinci/davinci-i2s.c
+++ b/sound/soc/davinci/davinci-i2s.c
@@ -719,7 +719,9 @@ static int davinci_i2s_probe(struct platform_device *pdev)
dev->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(dev->clk))
return -ENODEV;
- clk_enable(dev->clk);
+ ret = clk_enable(dev->clk);
+ if (ret)
+ goto err_put_clk;
dev->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, dev);
@@ -741,6 +743,7 @@ static int davinci_i2s_probe(struct platform_device *pdev)
snd_soc_unregister_component(&pdev->dev);
err_release_clk:
clk_disable(dev->clk);
+err_put_clk:
clk_put(dev->clk);
return ret;
}
diff --git a/sound/soc/fsl/imx-es8328.c b/sound/soc/fsl/imx-es8328.c
index 20e7400e2611..5942f9901938 100644
--- a/sound/soc/fsl/imx-es8328.c
+++ b/sound/soc/fsl/imx-es8328.c
@@ -93,6 +93,7 @@ static int imx_es8328_probe(struct platform_device *pdev)
if (int_port > MUX_PORT_MAX || int_port == 0) {
dev_err(dev, "mux-int-port: hardware only has %d mux ports\n",
MUX_PORT_MAX);
+ ret = -EINVAL;
goto fail;
}
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 13631003cb7c..5977a2011d9e 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -442,7 +442,10 @@ static int mxs_saif_hw_params(struct snd_pcm_substream *substream,
* basic clock which should be fast enough for the internal
* logic.
*/
- clk_enable(saif->clk);
+ ret = clk_enable(saif->clk);
+ if (ret)
+ return ret;
+
ret = clk_set_rate(saif->clk, 24000000);
clk_disable(saif->clk);
if (ret)
diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c
index 2b23ffbac6b1..e8aa93a654e7 100644
--- a/sound/soc/mxs/mxs-sgtl5000.c
+++ b/sound/soc/mxs/mxs-sgtl5000.c
@@ -112,6 +112,9 @@ static int mxs_sgtl5000_probe(struct platform_device *pdev)
codec_np = of_parse_phandle(np, "audio-codec", 0);
if (!saif_np[0] || !saif_np[1] || !codec_np) {
dev_err(&pdev->dev, "phandle missing or invalid\n");
+ of_node_put(codec_np);
+ of_node_put(saif_np[0]);
+ of_node_put(saif_np[1]);
return -EINVAL;
}
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index ead520182e26..29be45285274 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -821,14 +821,27 @@ static int fsi_clk_enable(struct device *dev,
return ret;
}
- clk_enable(clock->xck);
- clk_enable(clock->ick);
- clk_enable(clock->div);
+ ret = clk_enable(clock->xck);
+ if (ret)
+ goto err;
+ ret = clk_enable(clock->ick);
+ if (ret)
+ goto disable_xck;
+ ret = clk_enable(clock->div);
+ if (ret)
+ goto disable_ick;
clock->count++;
}
return ret;
+
+disable_ick:
+ clk_disable(clock->ick);
+disable_xck:
+ clk_disable(clock->xck);
+err:
+ return ret;
}
static int fsi_clk_disable(struct device *dev,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 0344d4423167..81c3aa167038 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3799,7 +3799,7 @@ static int snd_soc_get_dai_name(struct of_phandle_args *args,
if (!component_of_node && pos->dev->parent)
component_of_node = pos->dev->parent->of_node;
- if (component_of_node != args->np)
+ if (component_of_node != args->np || !pos->num_dai)
continue;
if (pos->driver->of_xlate_dai_name) {
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 21b0368c2a3b..878a4fc97f04 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1569,8 +1569,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
switch (w->id) {
case snd_soc_dapm_pre:
if (!w->event)
- list_for_each_entry_safe_continue(w, n, list,
- power_list);
+ continue;
if (event == SND_SOC_DAPM_STREAM_START)
ret = w->event(w,
@@ -1582,8 +1581,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
case snd_soc_dapm_post:
if (!w->event)
- list_for_each_entry_safe_continue(w, n, list,
- power_list);
+ continue;
if (event == SND_SOC_DAPM_STREAM_START)
ret = w->event(w,
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 67d22b4baeb0..61f0c9d6f6dc 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -98,10 +98,10 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,
memset(&slave_config, 0, sizeof(slave_config));
- if (!pcm->config)
- prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
- else
+ if (pcm->config && pcm->config->prepare_slave_config)
prepare_slave_config = pcm->config->prepare_slave_config;
+ else
+ prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
if (prepare_slave_config) {
ret = prepare_slave_config(substream, params, &slave_config);
diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index e2c200c3c135..74968ddee49f 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -328,7 +328,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
mask = BIT(sign_bit + 1) - 1;
val = ucontrol->value.integer.value[0];
- if (mc->platform_max && val > mc->platform_max)
+ if (mc->platform_max && ((int)val + min) > mc->platform_max)
return -EINVAL;
if (val > max - min)
return -EINVAL;
@@ -341,7 +341,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
val = val << shift;
if (snd_soc_volsw_is_stereo(mc)) {
val2 = ucontrol->value.integer.value[1];
- if (mc->platform_max && val2 > mc->platform_max)
+ if (mc->platform_max && ((int)val2 + min) > mc->platform_max)
return -EINVAL;
if (val2 > max - min)
return -EINVAL;
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 6274a5002647..7528f0d4bddf 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -507,7 +507,8 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES
&& k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
- && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
+ && (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ
+ || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
struct soc_bytes_ext *sbe;
struct snd_soc_tplg_bytes_control *be;
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index fac7e6eb9529..671b4516d930 100644
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -221,7 +221,9 @@ static int snd_at73c213_pcm_open(struct snd_pcm_substream *substream)
runtime->hw = snd_at73c213_playback_hw;
chip->substream = substream;
- clk_enable(chip->ssc->clk);
+ err = clk_enable(chip->ssc->clk);
+ if (err)
+ return err;
return 0;
}
@@ -787,7 +789,9 @@ static int snd_at73c213_chip_init(struct snd_at73c213 *chip)
goto out;
/* Enable DAC master clock. */
- clk_enable(chip->board->dac_clk);
+ retval = clk_enable(chip->board->dac_clk);
+ if (retval)
+ goto out;
/* Initialize at73c213 on SPI bus. */
retval = snd_at73c213_write_reg(chip, DAC_RST, 0x04);
@@ -900,7 +904,9 @@ static int snd_at73c213_dev_init(struct snd_card *card,
chip->card = card;
chip->irq = -1;
- clk_enable(chip->ssc->clk);
+ retval = clk_enable(chip->ssc->clk);
+ if (retval)
+ return retval;
retval = request_irq(irq, snd_at73c213_interrupt, 0, "at73c213", chip);
if (retval) {
@@ -1019,7 +1025,9 @@ static int snd_at73c213_remove(struct spi_device *spi)
int retval;
/* Stop playback. */
- clk_enable(chip->ssc->clk);
+ retval = clk_enable(chip->ssc->clk);
+ if (retval)
+ goto out;
ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXDIS));
clk_disable(chip->ssc->clk);
@@ -1099,9 +1107,16 @@ static int snd_at73c213_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_at73c213 *chip = card->private_data;
+ int retval;
- clk_enable(chip->board->dac_clk);
- clk_enable(chip->ssc->clk);
+ retval = clk_enable(chip->board->dac_clk);
+ if (retval)
+ return retval;
+ retval = clk_enable(chip->ssc->clk);
+ if (retval) {
+ clk_disable(chip->board->dac_clk);
+ return retval;
+ }
ssc_writel(chip->ssc->regs, CR, SSC_BIT(CR_TXEN));
return 0;
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index f0b41fee7130..83da676519a8 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -1210,6 +1210,7 @@ static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream)
} while (drain_urbs && timeout);
finish_wait(&ep->drain_wait, &wait);
}
+ port->active = 0;
spin_unlock_irq(&ep->buffer_lock);
}
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 1f2c69e599d9..c94068874ea8 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -1879,9 +1879,10 @@ void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
if (unitid == 7 && cval->control == UAC_FU_VOLUME)
snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
break;
- /* lowest playback value is muted on C-Media devices */
- case USB_ID(0x0d8c, 0x000c):
- case USB_ID(0x0d8c, 0x0014):
+ /* lowest playback value is muted on some devices */
+ case USB_ID(0x0d8c, 0x000c): /* C-Media */
+ case USB_ID(0x0d8c, 0x0014): /* C-Media */
+ case USB_ID(0x19f7, 0x0003): /* RODE NT-USB */
if (strstr(kctl->id.name, "Playback"))
cval->min_mute = 1;
break;
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 62456a806bb4..4b8f1c46420d 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -22,7 +22,7 @@
*/
/* handling of USB vendor/product ID pairs as 32-bit numbers */
-#define USB_ID(vendor, product) (((vendor) << 16) | (product))
+#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product))
#define USB_ID_VENDOR(id) ((id) >> 16)
#define USB_ID_PRODUCT(id) ((u16)(id))
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index f6d1bc93589c..f032dfed00a9 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -194,7 +194,7 @@
#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
#define X86_FEATURE_RETPOLINE ( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
-#define X86_FEATURE_RETPOLINE_AMD ( 7*32+13) /* "" AMD Retpoline mitigation for Spectre variant 2 */
+#define X86_FEATURE_RETPOLINE_LFENCE ( 7*32+13) /* "" Use LFENCEs for Spectre variant 2 */
#define X86_FEATURE_MSR_SPEC_CTRL ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
#define X86_FEATURE_SSBD ( 7*32+17) /* Speculative Store Bypass Disable */
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index ac9c477a2a48..46af3bb56142 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -162,7 +162,7 @@ strip-libs = $(filter-out -l%,$(1))
PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
-PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
+PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
$(OUTPUT)test-libperl.bin:
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 26546892cd54..faab09215c88 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -373,6 +373,7 @@ static void mfd_fail_write(int fd)
printf("mmap()+mprotect() didn't fail as expected\n");
abort();
}
+ munmap(p, mfd_def_size);
}
/* verify PUNCH_HOLE fails */
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index d77ed41b2094..1f89d3dd8295 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -60,6 +60,7 @@
#include <signal.h>
#include <poll.h>
#include <string.h>
+#include <linux/mman.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include <sys/ioctl.h>
diff --git a/tools/testing/selftests/x86/check_cc.sh b/tools/testing/selftests/x86/check_cc.sh
index 172d3293fb7b..356689c56397 100755
--- a/tools/testing/selftests/x86/check_cc.sh
+++ b/tools/testing/selftests/x86/check_cc.sh
@@ -7,7 +7,7 @@ CC="$1"
TESTPROG="$2"
shift 2
-if "$CC" -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then
+if [ -n "$CC" ] && $CC -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then
echo 1
else
echo 0
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d9b7001227e3..d251b718bf53 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -107,6 +107,8 @@ EXPORT_SYMBOL_GPL(kvm_debugfs_dir);
static int kvm_debugfs_num_entries;
static const struct file_operations *stat_fops_per_vm[];
+static struct file_operations kvm_chardev_ops;
+
static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl,
unsigned long arg);
#ifdef CONFIG_KVM_COMPAT
@@ -714,6 +716,16 @@ static struct kvm *kvm_create_vm(unsigned long type)
preempt_notifier_inc();
+ /*
+ * When the fd passed to this ioctl() is opened it pins the module,
+ * but try_module_get() also prevents getting a reference if the module
+ * is in MODULE_STATE_GOING (e.g. if someone ran "rmmod --wait").
+ */
+ if (!try_module_get(kvm_chardev_ops.owner)) {
+ r = -ENODEV;
+ goto out_err;
+ }
+
return kvm;
out_err:
@@ -798,6 +810,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
preempt_notifier_dec();
hardware_disable_all();
mmdrop(mm);
+ module_put(kvm_chardev_ops.owner);
}
void kvm_get_kvm(struct kvm *kvm)
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [ANNOUNCE] 4.9.312-rt193
@ 2022-05-13 0:46 ` Mark Gross
0 siblings, 0 replies; 8+ messages in thread
From: Mark Gross @ 2022-05-13 0:46 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Danie l Wagner, Tom Zanussi, Clark Williams
Hello RT-list!
I'm pleased to announce the 4.9.312-rt193 stable release.
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
branch: v4.9-rt
Head SHA1: 9fa8a14439281cb467a9bf7bdb8795e52bf2293c
Or to build 4.9.312-rt193 directly, the following patches should be applied:
https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.9.tar.xz
https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.9.312.xz
https://www.kernel.org/pub/linux/kernel/projects/rt/4.9/patch-4.9.312-rt193.patch.xz
You can also build from 4.9.303-rt192 by applying the incremental patch:
https://www.kernel.org/pub/linux/kernel/projects/rt/4.9/incr/patch-4.9.303-rt192-rt193.patch.xz
Signing key fingerprint:
A073 BC64 746A 086C DA24 97C8 F92D 73C9 A31A 1C17
Enjoy!
Mark Gross
Changes from v4.9.303-rt192:
---
Adrian Hunter (2):
perf/core: Fix address filter parser for multiple filters
perf/x86/intel/pt: Fix address filter config for 32-bit kernel
Alan Stern (2):
usb: gadget: Fix use-after-free bug by not setting udc->dev.driver
USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c
Alexander Lobakin (2):
MIPS: smp: fill in sibling and core maps earlier
MIPS: fix fortify panic when copying asm exception handlers
Alexey Galakhov (1):
scsi: mvsas: Add PCI ID of RocketRaid 2640
Alexey Khoroshilov (2):
serial: 8250: fix error handling in of_platform_serial_probe()
NFS: remove unneeded check in decode_devicenotify_args()
Alistair Popple (1):
mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node
Amadeusz Sławiński (1):
ASoC: topology: Allow TLV control to be either read or write
Andrew Price (1):
gfs2: Make sure FITRIM minlen is rounded up to fs block size
Anshuman Khandual (1):
arm64: Add Cortex-X2 CPU part definition
Armin Wolf (1):
hwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING
Arnaldo Carvalho de Melo (1):
tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts
Arnd Bergmann (1):
arm64: arch_timer: avoid unused function warning
Baokun Li (3):
jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
jffs2: fix memory leak in jffs2_do_mount_fs
jffs2: fix memory leak in jffs2_scan_medium
Bart Van Assche (1):
RDMA/ib_srp: Fix a deadlock
Benjamin Beichler (1):
mac80211_hwsim: report NOACK frames in tx_status
Bharata B Rao (1):
sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa
Bob Peterson (1):
gfs2: assign rgrp glock before compute_bitstructs
Borislav Petkov (3):
x86/speculation: Merge one test in spectre_v2_user_select_mitigation()
ALSA: usb-audio: Fix undefined behavior due to shift overflowing the constant
brcmfmac: sdio: Fix undefined behavior due to shift overflowing the constant
Brandon Wyman (1):
hwmon: (pmbus) Add Vin unit off handling
Casey Schaufler (1):
Fix incorrect type in assignment of ipv6 port for audit
Chaitanya Kulkarni (1):
loop: use sysfs_emit() in the sysfs xxx show()
Chen-Yu Tsai (2):
pinctrl: pinconf-generic: Print arguments for bias-pull-*
net: stmmac: Fix unset max_speed difference between DT and non-DT platforms
ChenXiaoSong (1):
configfs: fix a race in configfs_{,un}register_subsystem()
Chengming Zhou (1):
kselftest/vm: fix tests build with old libc
Christian Göttsche (1):
selinux: use correct type for context length
Christophe JAILLET (2):
iio: adc: men_z188_adc: Fix a resource leak in an error handling path
scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()
Codrin Ciubotariu (1):
ASoC: dmaengine: do not use a NULL prepare_slave_config() callback
Colin Ian King (2):
carl9170: fix missing bit-wise or operator for tx_params
iwlwifi: Fix -EIO error code that is never returned
Corentin Labbe (1):
ARM: dts: rockchip: fix a typo on rk3288 crypto-controller
Daehwan Jung (1):
usb: gadget: rndis: add spinlock for rndis response list
Damien Le Moal (6):
scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands
scsi: pm8001: Fix command initialization in pm80XX_send_read_log()
scsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req()
scsi: pm8001: Fix payload initialization in pm80xx_set_thermal_config()
scsi: pm8001: Fix abort all task initialization
scsi: pm8001: Fix pm8001_mpi_task_abort_resp()
Dan Carpenter (6):
staging: gdm724x: fix use after free in gdm_lte_rx()
usb: gadget: rndis: prevent integer overflow in rndis_set_response()
NFSD: prevent underflow in nfssvc_decode_writeargs()
video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()
media: usb: go7007: s2250-board: fix leak in probe()
USB: storage: ums-realtek: fix error code in rts51x_read_mem()
Daniel González Cabanelas (1):
media: cx88-mpeg: clear interrupt status register before streaming video
Daniele Palmas (2):
USB: serial: option: add Telit LE910R1 compositions
net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990
Darren Hart (1):
ACPI/APEI: Limit printable size of BERT table data
Dave Martin (1):
arm64: capabilities: Update prototype for enable call back
David Heidelberg (1):
ARM: dts: qcom: fix gic_irq_domain_translate warnings for msm8960
David Howells (1):
cifs: Check the IOCB_DIRECT flag, not O_DIRECT
David Matlack (1):
KVM: Prevent module exit until all VMs are freed
Ding Tianhong (2):
clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter
clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure
Dinh Nguyen (1):
net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link
Dirk Müller (1):
lib/raid6/test: fix multiple definition linking error
Dmitry Baryshkov (1):
PM: core: keep irq flags in device_pm_check_callbacks()
Dmitry Torokhov (1):
HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports
Dmytro Bagrii (1):
Revert "USB: serial: ch341: add new Product ID for CH341A"
Dongliang Mu (2):
ntfs: add sanity check on allocation size
media: hdpvr: initialize dev->worker at hdpvr_register_videodev
Duoming Zhou (4):
ax25: Fix NULL pointer dereference in ax25_kill_by_device
drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
net/x25: Fix null-ptr-deref caused by x25_disconnect
drivers: net: slip: fix NPD bug in sl_tx_timeout()
Dāvis Mosāns (1):
crypto: ccp - ccp_dmaengine_unregister release dma channels
Eddie James (1):
USB: serial: pl2303: add IBM device IDs
Emmanuel Gil Peyrot (1):
ARM: fix build error when BPF_SYSCALL is disabled
Eric Anholt (1):
i2c: bcm2835: Avoid clock stretching timeouts
Eric Dumazet (7):
net: __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor friends
sctp: fix kernel-infoleak for SCTP sockets
tcp: make tcp_read_sock() more robust
net/packet: fix slab-out-of-bounds access in packet_recvmsg()
llc: fix netdevice reference leaks in llc_ui_bind()
llc: only change llc->dev when bind() succeeds
netlink: reset network and mac headers in netlink_dump()
Evgeny Novikov (1):
video: fbdev: w100fb: Reset global state
Fabio M. De Francesco (1):
ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
Fangrui Song (1):
arm64: module: remove (NOLOAD) from linker script
Florian Fainelli (1):
net: phy: broadcom: Fix brcm_fet_config_init()
Florian Westphal (2):
netfilter: nf_queue: don't assume sk is full socket
netfilter: nf_queue: fix possible use-after-free
Frank Wunderlich (1):
arm64: dts: broadcom: Fix sata nodename
Gal Pressman (1):
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
George Kennedy (1):
video: fbdev: cirrusfb: check pixclock to avoid divide by zero
Giacomo Guiduzzi (1):
ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec
Giovanni Cabiddu (1):
crypto: qat - disable registration of algorithms
Greg Kroah-Hartman (9):
Linux 4.9.304
Linux 4.9.305
Linux 4.9.306
Linux 4.9.307
Linux 4.9.308
Linux 4.9.309
Linux 4.9.310
Linux 4.9.311
Linux 4.9.312
Guillaume Nault (1):
veth: Ensure eth header is in skb's linear part
Guo Ren (1):
arm64: patch_text: Fixup last cpu should be master
H. Nikolaus Schaller (1):
usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm
Haimin Zhang (2):
af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
jfs: prevent NULL deref in diFree
Hangbin Liu (1):
net/packet: fix packet_sock xmit return value checking
Hangyu Hua (3):
usb: gadget: don't release an existing dev->buf
usb: gadget: clear related members when goto fail
can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
Hans de Goede (2):
Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power()
Input: elan_i2c - fix regulator enable count imbalance after suspend/resume
Harshit Mogalapalli (1):
cifs: potential buffer overflow in handling symlinks
Hector Martin (2):
brcmfmac: firmware: Allocate space for default boardrev in nvram
brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio
Helge Deller (3):
parisc/unaligned: Fix fldd and fstd unaligned handlers on 32-bit kernel
parisc/unaligned: Fix ldw() and stw() unalignment handlers
video: fbdev: sm712fb: Fix crash in smtcfb_read()
Herbert Xu (1):
crypto: authenc - Fix sleep in atomic context in decrypt_tail
Hongbin Wang (1):
vxlan: fix error return code in vxlan_fdb_append
Hongyu Xie (1):
xhci: Prevent futile URB re-submissions due to incorrect return value.
Hou Wenlong (1):
KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor()
Huang Pei (1):
hamradio: fix macro redefine warning
Hugh Dickins (2):
memfd: fix F_SEAL_WRITE after shmem huge page allocated
mempolicy: mbind_range() set_policy() after vma_merge()
JaeMan Park (1):
mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work
Jakob Koschel (1):
powerpc/sysdev: fix incorrect use to determine if list is empty
James Clark (1):
coresight: Fix TRCCONFIGR.QE sysfs interface
James Morse (20):
arm64: Remove useless UAO IPI and describe how this gets enabled
arm64: entry.S: Add ventry overflow sanity checks
arm64: entry: Make the trampoline cleanup optional
arm64: entry: Free up another register on kpti's tramp_exit path
arm64: entry: Move the trampoline data page before the text page
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
arm64: entry: Don't assume tramp_vectors is the start of the vectors
arm64: entry: Move trampoline macros out of ifdef'd section
arm64: entry: Make the kpti trampoline's kpti sequence optional
arm64: entry: Allow the trampoline text to occupy multiple pages
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
arm64: Move arm64_update_smccc_conduit() out of SSBD ifdef
arm64: entry: Add vectors that have the bhb mitigation sequences
arm64: entry: Add macro for reading symbol addresses from the trampoline
arm64: Add percpu vectors for EL1
KVM: arm64: Add templates for BHB mitigation sequences
arm64: Mitigate spectre style branch history side channels
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
arm64: add ID_AA64ISAR2_EL1 sys register
arm64: Use the clearbhb instruction in mitigations
Jann Horn (2):
efivars: Respect "block" flag in efivar_entry_set_safe()
ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
Jason A. Donenfeld (1):
gcc-plugins: latent_entropy: use /dev/urandom
Jia-Ju Bai (4):
net: chelsio: cxgb3: check the return value of pci_find_capability()
net: qlogic: check the return value of dma_alloc_coherent() in qed_vf_hw_prepare()
atm: firestream: check the return value of ioremap() in fs_init()
memory: emif: check the pointer temp in get_device_details()
Jianglei Nie (1):
scsi: libfc: Fix use after free in fc_exch_abts_resp()
Jiapeng Chong (1):
platform/x86: samsung-laptop: Fix an unsigned comparison which can never be negative
Jiasheng Jiang (17):
soc: fsl: qe: Check of ioremap return value
net: ethernet: lpc_eth: Handle error for clk_enable
atm: eni: Add check for dma_map_single
ASoC: ti: davinci-i2s: Add check for clk_enable()
ALSA: spi: Add check for clk_enable()
ASoC: mxs-saif: Handle errors for clk_enable
ASoC: atmel_ssc_dai: Handle errors for clk_enable
memory: emif: Add check for setup_interrupts
ASoC: wm8350: Handle error for wm8350_register_irq
ASoC: fsi: Add check for clk_enable
mtd: onenand: Check for error irq
ray_cs: Check ioremap return value
power: supply: wm8350-power: Handle error for wm8350_register_irq
power: supply: wm8350-power: Add missing free in free_charger_irq
mfd: mc13xxx: Add check for mc13xxx_irq_request
iio: adc: Add check for devm_request_threaded_irq
rtc: wm8350: Handle error for wm8350_register_irq
Jim Mattson (1):
KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
Jing Yao (2):
video: fbdev: omapfb: panel-dsi-cm: Use sysfs_emit() instead of snprintf()
video: fbdev: omapfb: panel-tpo-td043mtea1: Use sysfs_emit() instead of snprintf()
Jiri Bohac (1):
xfrm: fix MTU regression
Jiri Slaby (2):
mxser: fix xmit_buf leak in activate when LSR == 0xff
serial: samsung_tty: do not unlock port->lock for uart_write_wakeup()
Johan Hovold (3):
firmware: qemu_fw_cfg: fix kobject leak in probe error path
USB: serial: simple: add Nokia phone driver
media: davinci: vpif: fix unbalanced runtime PM get
Jonathan Neuschäfer (2):
clk: loongson1: Terminate clk_div_table with sentinel element
clk: clps711x: Terminate clk_div_table with sentinel element
Jonathan Teh (1):
ALSA: cmipci: Restore aux vol on suspend/resume
Jordy Zomer (2):
nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION
dm ioctl: prevent potential spectre v1 gadget
Josh Poimboeuf (4):
Documentation: Add swapgs description to the Spectre v1 documentation
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
x86/speculation: Warn about Spectre v2 LFENCE mitigation
x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT
José Expósito (3):
Input: clear BTN_RIGHT/MIDDLE on buttonpads
Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
drm/imx: Fix memory leak in imx_pd_connector_get_modes
Juergen Gross (10):
xen/xenbus: don't let xenbus_grant_ring() remove grants in error case
xen/grant-table: add gnttab_try_end_foreign_access()
xen/blkfront: don't use gnttab_query_foreign_access() for mapped status
xen/netfront: don't use gnttab_query_foreign_access() for mapped status
xen/scsifront: don't use gnttab_query_foreign_access() for mapped status
xen/gntalloc: don't use gnttab_query_foreign_access()
xen: remove gnttab_query_foreign_access()
xen/gnttab: fix gnttab_end_foreign_access() without page specified
xen/netfront: react properly to failing gnttab_end_foreign_access_ref()
mm, page_alloc: fix build_zonerefs_node()
Julian Braha (1):
ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE
Kees Cook (2):
etherdevice: Adjust ether_addr* prototypes to silence -Wstringop-overead
ARM: vexpress/spc: Avoid negative array index when !SMP
Khazhismel Kumykov (1):
block/compat_ioctl: fix range check in BLKGETSIZE
Kim Phillips (2):
x86/speculation: Use generic retpoline by default on AMD
x86/speculation: Update link to AMD speculation whitepaper
Krzysztof Kozlowski (3):
ARM: dts: exynos: fix UART3 pins configuration in Exynos5250
ARM: dts: exynos: add missing HDMI supplies on SMDK5250
ARM: dts: exynos: add missing HDMI supplies on SMDK5420
Kuldeep Singh (3):
arm64: dts: ns2: Fix spi-cpol and spi-cpha property
ARM: dts: spear1340: Update serial node properties
ARM: dts: spear13xx: Update SPI dma properties
Kunihiko Hayashi (1):
clk: uniphier: Fix fixed-rate initialization
Lad Prabhakar (1):
can: rcar_canfd: rcar_canfd_channel_probe(): register the CAN device when fully ready
Lars-Peter Clausen (1):
ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB
Leo Ruan (1):
gpu: ipu-v3: Fix dev_dbg frequency output
Liam Beguin (2):
iio: inkern: apply consumer scale on IIO_VAL_INT cases
iio: inkern: make a best effort on offset calculation
Liguang Zhang (1):
PCI: pciehp: Clear cmd_busy bit in polling mode
Lin Ma (1):
nfc: nci: add flush_workqueue to prevent uaf
Linus Lüssing (1):
mac80211: fix potential double free on mesh join
Linus Torvalds (1):
fget: clarify and improve __fget_files() implementation
Lucas Denefle (1):
w1: w1_therm: fixes w1_seq for ds28ea00 sensors
Lucas Wei (1):
fs: sysfs_emit: Remove PAGE_SIZE alignment check
Luiz Augusto von Dentz (1):
Bluetooth: Fix use after free in hci_send_acl
Lukas Bulwahn (1):
Documentation: refer to config RANDOMIZE_BASE for kernel address-space randomization
Lv Yunlong (1):
drbd: Fix five use after free bugs in get_initial_state
Maciej W. Rozycki (1):
DEC: Limit PMAX memory probing to R3k systems
Marc Zyngier (6):
arm64: arch_timer: Add infrastructure for multiple erratum detection methods
arm64: arch_timer: Add erratum handler for CPU-specific capability
arm64: arch_timer: Add workaround for ARM erratum 1188873
arm64: Add silicon-errata.txt entry for ARM erratum 1188873
arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
arm64: Add part number for Neoverse N1
Marek Marczykowski-Górecki (1):
Revert "xen-netback: Check for hotplug-status existence before watching"
Marek Vasut (1):
ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min
Mark Cilissen (1):
ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board
Mark Featherston (1):
gpio: ts4900: Do not set DAT and OE together
Mark Gross (2):
Merge tag 'v4.9.312' into v4.9-rt
Linux 4.9.312-rt193
Mark Rutland (1):
arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()
Martin Povišer (1):
i2c: pasemi: Wait for write xfers to finish
Martin Varghese (1):
openvswitch: Fixed nd target mask field in the flow dump.
Masahiro Yamada (1):
x86/build: Fix compiler support check for CONFIG_RETPOLINE
Mauricio Faria de Oliveira (1):
mm: fix race between MADV_FREE reclaim and blkdev direct IO read
Max Filippov (1):
xtensa: fix DTC warning unit_address_format
Maxim Kiselev (1):
powerpc: dts: t104xrdb: fix phy type for FMAN 4/5
Maxime Ripard (2):
drm/edid: Always set RGB444
drm/edid: Don't clear formats if using deep color
Maximilian Luz (1):
ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3
Miaohe Lin (2):
memblock: use kfree() to release kmalloced memblock regions
mm/mempolicy: fix mpol_new leak in shared_policy_replace
Miaoqian Lin (15):
ethernet: Fix error handling in xemaclite_of_probe
spi: tegra114: Add missing IRQ check in tegra_spi_probe
soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe
ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of
ASoC: mxs: Fix error handling in mxs_sgtl5000_probe
power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init
drm/tegra: Fix reference leak in tegra_dsi_ganged_probe
mfd: asic3: Add missing iounmap() on error asic3_mfd_probe
remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region
clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver
pinctrl: mediatek: Fix missing of_node_put() in mtk_pctrl_init
pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe
pinctrl/rockchip: Add missing of_node_put() in rockchip_pinctrl_probe
dmaengine: imx-sdma: Fix error checking in sdma_event_remap
Michael Chan (1):
bnxt_en: Eliminate unintended link toggle during FW reset
Michael S. Tsirkin (1):
virtio_console: break out of buf poll on remove
Michael Schmitz (1):
video: fbdev: atari: Atari 2 bpp (STe) palette bugfix
Mike Kravetz (1):
selftests/memfd: clean up mapping in mfd_fail_write
Minghao Chi (1):
spi: tegra20: Use of_device_get_match_data()
Mohammad Kabat (1):
net/mlx5: Fix size field in bufferx_reg struct
Muhammad Usama Anjum (1):
selftests/x86: Add validity check and allow field splitting
Nadav Amit (1):
smp: Fix offline cpu check in flush_smp_call_function_queue()
Nathan Chancellor (2):
ARM: Do not use NOCROSSREFS directive with ld.lld
ARM: davinci: da850-evm: Avoid NULL pointer dereference
NeilBrown (2):
SUNRPC: avoid race between mod_timer() and del_timer_sync()
SUNRPC/call_alloc: async tasks mustn't block waiting for memory
Nicolas Escande (1):
mac80211: fix forwarded mesh frames AC & queue selection
Niels Dossche (1):
sfc: extend the locking on mcdi->seqno
Oliver Graute (1):
staging: fbtft: fb_st7789v: reset display before initialization
Oliver Neukum (2):
sr9700: sanity check for packet length
USB: zaurus: support another broken Zaurus
Pablo Neira Ayuso (2):
netfilter: nf_tables: initialize registers in nft_do_chain()
netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options
Paolo Bonzini (1):
mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
Paolo Valerio (1):
openvswitch: fix OOB access in reserve_sfa_size()
Patrick Rudolph (1):
hwmon: (pmbus) Add mutex to regulator ops
Patrick Wang (1):
mm: kmemleak: take a full lowmem check in kmemleak_*_phys()
Paul Blakey (1):
openvswitch: Fix setting ipv6 fields causing hw csum failure
Pavel Kubelun (1):
ARM: dts: qcom: ipq4019: fix sleep clock
Pavel Skripkin (4):
NFC: port100: fix use-after-free in port100_send_complete
Input: aiptek - properly check endpoint type
ath9k_htc: fix uninit value bugs
jfs: fix divide error in dbNextAG
Pawan Gupta (2):
x86/pm: Save the MSR validity status at context setup
x86/speculation: Restore speculation related MSRs during S3 resume
Peter Rosin (1):
i2c: mux: demux-pinctrl: do not deactivate a master that is not active
Peter Xu (1):
mm: don't skip swap entry even if zap_details specified
Peter Zijlstra (3):
x86,bugs: Unconditionally allow spectre_v2=retpoline,amd
x86/speculation: Add eIBRS + Retpoline options
Documentation/hw-vuln: Update spectre doc
Peter Zijlstra (Intel) (1):
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE
Petr Machata (1):
af_netlink: Fix shift out of bounds in group mask calculation
Petr Vorel (1):
crypto: vmx - add missing dependencies
QintaoShen (1):
drm/amdkfd: Check for potential null return of kmalloc_array()
Qiushi Wu (1):
firmware: Fix a reference count leak.
Qu Wenruo (1):
btrfs: unlock newly allocated extent buffer after error
Quinn Tran (1):
scsi: qla2xxx: Fix incorrect reporting of task management failure
Rafael J. Wysocki (2):
ACPICA: Avoid walking the ACPI Namespace if it is not there
ACPI: CPPC: Avoid out of bounds access when parsing _CPC data
Randy Dunlap (20):
net: stmmac: fix return value of __setup handler
net: sxgbe: fix return value of __setup handler
ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions
ARM: Spectre-BHB: provide empty stub for non-config
PM: hibernate: fix __setup handler error handling
PM: suspend: fix return value of __setup handler
clocksource: acpi_pm: fix return value of __setup handler
printk: fix return value of printk.devkmsg __setup handler
TOMOYO: fix __setup handlers return values
MIPS: RB532: fix return value of __setup handler
tty: hvc: fix return value of __setup handler
kgdboc: fix return value of __setup handler
kgdbts: fix return value of __setup handler
mm/mmap: return 1 from stack_guard_gap __setup() handler
mm/memcontrol: return 1 from cgroup.memory __setup() handler
ARM: 9187/1: JIVE: fix return value of __setup handler
scsi: aha152x: Fix aha152x_setup() __setup handler return value
init/main.c: return 1 from handled __setup() functions
virtio_console: eliminate anonymous module_init & module_exit
net: micrel: fix KS8851_MLL Kconfig
Richard Leitner (1):
ARM: tegra: tamonten: Fix I2C3 pad setting
Richard Schleich (1):
ARM: dts: bcm2837: Add the missing L1/L2 cache information
Rob Herring (1):
arm64: Add part number for Arm Cortex-A77
Robert Hancock (2):
serial: 8250: of: Fix mapped region size when using reg-offset property
i2c: xiic: Make bus names unique
Robert Richter (1):
arm64: errata: Provide macro for major and minor cpu revisions
Ronnie Sahlberg (1):
cifs: fix double free race when mount fails in cifs_get_root()
Russell King (Oracle) (8):
ARM: report Spectre v2 status through sysfs
ARM: early traps initialisation
ARM: use LOADADDR() to get load address of sections
ARM: Spectre-BHB workaround
ARM: include unprivileged BPF status in Spectre V2 reporting
ARM: fix co-processor register typo
ARM: fix build warning in proc-v7-bugs.c
ARM: fix Thumb2 regression with Spectre BHB
Sasha Neftin (1):
e1000e: Fix possible overflow in LTR decoding
Sebastian Andrzej Siewior (1):
usb: dwc3: gadget: Let the interrupt handler disable bottom halves.
Sergey Matyukevich (1):
ARC: entry: fix syscall_trace_exit argument
Sergey Shtylyov (2):
ata: pata_hpt37x: disable primary channel on HPT371
ata: pata_hpt37x: fix PCI clock detection
Shengjiu Wang (1):
ASoC: soc-core: skip zero num_dai component in searching dai name
Slark Xiao (1):
USB: serial: option: add support for DW5829e
Souptick Joarder (HPE) (1):
irqchip/nvic: Release nvic_base upon failure
Sreeramya Soratkal (1):
nl80211: Update bss channel on channel switch for P2P_CLIENT
Srinivas Pandruvada (1):
thermal: int340x: Increase bitmap size
Stefano Garzarella (1):
vhost/vsock: don't check owner in vhost_vsock_stop() while releasing
Steven Price (1):
arm/arm64: Provide a wrapper for SMCCC 1.1 calls
Steven Rostedt (Google) (1):
tracefs: Set the group ownership in apply_options() not parse_options()
Suzuki K Poulose (10):
arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35
arm64: capabilities: Move errata work around check on boot CPU
arm64: capabilities: Move errata processing code
arm64: capabilities: Prepare for fine grained capabilities
arm64: capabilities: Add flags to handle the conflicts on late CPU
arm64: capabilities: Clean up midr range helpers
arm64: Add helpers for checking CPU MIDR against a range
arm64: capabilities: Add support for checks based on a list of MIDRs
arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
arm64: Add helper to decode register from instruction
Sven Eckelmann (2):
batman-adv: Request iflink once in batadv-on-batadv check
batman-adv: Don't expect inter-netns unique iflink indices
Sven Schnelle (1):
tracing: Ensure trace buffer is at least 4096 bytes large
Szymon Heidrich (1):
USB: gadget: validate endpoint index for xilinx udc
Tadeusz Struk (2):
net: ipv6: fix skb_over_panic in __ip6_append_data
ext4: limit length to bitmap_maxbytes - blocksize in punch_hole
Takashi Iwai (2):
ALSA: pcm: Add stream lock during PCM reset ioctl operations
ALSA: usb-audio: Clear MIDI port active flag after draining
Takashi Sakamoto (1):
ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction
Taniya Das (1):
clk: qcom: clk-rcg2: Update the frac table for pixel clock
Tao Liu (1):
gso: do not skip outer ip header in case of ipip and net_failover
Theodore Ts'o (3):
ext4: don't BUG if someone dirty pages without asking ext4 first
ext4: fix overhead calculation to account for the reserved gdt blocks
ext4: force overhead calculation if the s_overhead_cluster makes no sense
Tim Chen (1):
Documentation: Add section about CPU vulnerabilities for Spectre
Tim Gardner (1):
video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow
Tom Rix (2):
qed: return status of qed_iov_get_link
qlcnic: dcb: default to returning -EOPNOTSUPP
Tomas Paukrt (1):
crypto: mxs-dcp - Fix scatterlist processing
Tyrel Datwyler (1):
scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024
Ulf Hansson (1):
mmc: host: Return an error when ->enable_sdio_irq() ops is missing
Uwe Kleine-König (2):
pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add()
ARM: mmp: Fix failure to remove sram device
Vincent Mailhol (1):
can: gs_usb: change active_channels's type from atomic_t to u8
Vinod Koul (1):
dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error"
Vitaly Kuznetsov (1):
KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated
Vladimir Oltean (2):
net: dcb: flush lingering app table entries for unregistered devices
net: dcb: disable softirqs in dcbnl_flush_dev()
WANG Chao (1):
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
Wang Hai (1):
video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
Wang Wensheng (1):
ASoC: imx-es8328: Fix error return code in imx_es8328_probe()
Werner Sembach (1):
ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
William Mahon (1):
HID: add mapping for KEY_ALL_APPLICATIONS
Wolfram Sang (1):
i2c: qup: allow COMPILE_TEST
Xiaoke Wang (1):
drm/msm/mdp5: check the return of kzalloc()
Xiaomeng Tong (3):
ALSA: cs4236: fix an incorrect NULL check on list iterator
dma: at_xdmac: fix a missing check on list iterator
ASoC: soc-dapm: fix two incorrect uses of list iterator
Xie Yongji (2):
block: Add a helper to validate the block size
virtio-blk: Use blk_validate_block_size() to validate block size
Xin Long (1):
xfrm: policy: match with both mark and mask on user interfaces
Xiongwei Song (1):
mm: page_alloc: fix building error on -Werror=array-compare
Yajun Deng (1):
netdevice: add the case if dev is NULL
Yan Yan (1):
xfrm: Fix xfrm migrate issues when address family changes
Yang Guang (4):
video: fbdev: omapfb: acx565akm: replace snprintf with sysfs_emit
ptp: replace snprintf with sysfs_emit
scsi: mvsas: Replace snprintf() with sysfs_emit()
scsi: bfa: Replace snprintf() with sysfs_emit()
Yongzhi Liu (1):
dmaengine: shdma: Fix runtime PM imbalance on error
Zekun Shen (1):
ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
Zhang Yi (1):
ext2: correct max file size computing
Zhenzhong Duan (4):
x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant
x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support
x86/retpoline: Remove minimal retpoline support
KVM: x86: Fix emulation in writing cr8
Zheyu Ma (4):
net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
ethernet: sun: Free the coherent when failing in probing
video: fbdev: sm712fb: Fix crash in smtcfb_write()
ata: pata_marvell: Check the 'bmdma_addr' beforing reading
Zhihao Cheng (3):
ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
ubi: fastmap: Return error code if memory allocation fails in add_aeb()
Zhou Guanghui (1):
iommu/arm-smmu-v3: fix event handling soft lockup
daniel.starke@siemens.com (2):
tty: n_gsm: fix encoding of control signal octet bit DV
tty: n_gsm: fix proper link termination after failed open
david regan (1):
mtd: rawnand: brcmnand: Fixed incorrect sub-page ECC status
suresh kumar (1):
net-sysfs: add check for netdevice being present to speed_show
---
Documentation/arm64/silicon-errata.txt | 1 +
Documentation/hw-vuln/index.rst | 1 +
Documentation/hw-vuln/spectre.rst | 785 +++++++++++++++++++++
Documentation/kernel-parameters.txt | 17 +-
Makefile | 2 +-
arch/arc/kernel/entry.S | 1 +
arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 2 +-
arch/arm/boot/dts/exynos5250-smdk5250.dts | 3 +
arch/arm/boot/dts/exynos5420-smdk5420.dts | 3 +
arch/arm/boot/dts/qcom-ipq4019.dtsi | 3 +-
arch/arm/boot/dts/qcom-msm8960.dtsi | 8 +-
arch/arm/boot/dts/rk3288.dtsi | 2 +-
arch/arm/boot/dts/spear1340.dtsi | 6 +-
arch/arm/boot/dts/spear13xx.dtsi | 6 +-
arch/arm/boot/dts/tegra20-tamonten.dtsi | 6 +-
arch/arm/include/asm/assembler.h | 10 +
arch/arm/include/asm/kvm_host.h | 5 +
arch/arm/include/asm/spectre.h | 38 +
arch/arm/kernel/Makefile | 2 +
arch/arm/kernel/entry-armv.S | 79 ++-
arch/arm/kernel/entry-common.S | 24 +
arch/arm/kernel/spectre.c | 71 ++
arch/arm/kernel/traps.c | 65 +-
arch/arm/kernel/vmlinux-xip.lds.S | 45 +-
arch/arm/kernel/vmlinux.lds.S | 45 +-
arch/arm/kvm/psci.c | 4 +
arch/arm/mach-davinci/board-da850-evm.c | 4 +-
arch/arm/mach-mmp/sram.c | 22 +-
arch/arm/mach-s3c24xx/mach-jive.c | 6 +-
arch/arm/mach-vexpress/spc.c | 2 +-
arch/arm/mm/Kconfig | 11 +
arch/arm/mm/mmu.c | 2 +
arch/arm/mm/proc-v7-bugs.c | 199 +++++-
arch/arm64/Kconfig | 24 +
arch/arm64/boot/dts/broadcom/bcm2837.dtsi | 49 ++
arch/arm64/boot/dts/broadcom/ns2-svk.dts | 8 +-
arch/arm64/boot/dts/broadcom/ns2.dtsi | 2 +-
arch/arm64/include/asm/arch_timer.h | 44 +-
arch/arm64/include/asm/assembler.h | 34 +
arch/arm64/include/asm/cpu.h | 1 +
arch/arm64/include/asm/cpucaps.h | 4 +-
arch/arm64/include/asm/cpufeature.h | 232 +++++-
arch/arm64/include/asm/cputype.h | 63 ++
arch/arm64/include/asm/fixmap.h | 6 +-
arch/arm64/include/asm/insn.h | 2 +
arch/arm64/include/asm/kvm_host.h | 4 +
arch/arm64/include/asm/kvm_mmu.h | 2 +-
arch/arm64/include/asm/mmu.h | 8 +-
arch/arm64/include/asm/processor.h | 6 +-
arch/arm64/include/asm/sections.h | 6 +
arch/arm64/include/asm/sysreg.h | 5 +
arch/arm64/include/asm/vectors.h | 74 ++
arch/arm64/kernel/bpi.S | 55 ++
arch/arm64/kernel/cpu_errata.c | 595 +++++++++++++---
arch/arm64/kernel/cpufeature.c | 167 +++--
arch/arm64/kernel/cpuinfo.c | 1 +
arch/arm64/kernel/entry.S | 197 ++++--
arch/arm64/kernel/fpsimd.c | 1 +
arch/arm64/kernel/insn.c | 33 +-
arch/arm64/kernel/module.lds | 2 +-
arch/arm64/kernel/smp.c | 6 -
arch/arm64/kernel/traps.c | 4 +-
arch/arm64/kernel/vmlinux.lds.S | 2 +-
arch/arm64/kvm/hyp/hyp-entry.S | 4 +
arch/arm64/kvm/hyp/switch.c | 9 +-
arch/arm64/mm/fault.c | 17 +-
arch/arm64/mm/mmu.c | 11 +-
arch/mips/dec/prom/Makefile | 2 +-
arch/mips/include/asm/dec/prom.h | 15 +-
arch/mips/include/asm/setup.h | 2 +-
arch/mips/kernel/smp.c | 6 +-
arch/mips/kernel/traps.c | 22 +-
arch/mips/rb532/devices.c | 6 +-
arch/parisc/kernel/unaligned.c | 14 +-
arch/powerpc/boot/dts/fsl/t104xrdb.dtsi | 4 +-
arch/powerpc/sysdev/fsl_gtm.c | 4 +-
arch/x86/Kconfig | 4 -
arch/x86/Makefile | 11 +-
arch/x86/events/intel/pt.c | 2 +-
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/include/asm/nospec-branch.h | 41 +-
arch/x86/kernel/acpi/boot.c | 24 +
arch/x86/kernel/cpu/bugs.c | 225 ++++--
arch/x86/kvm/emulate.c | 14 +-
arch/x86/kvm/hyperv.c | 15 +
arch/x86/kvm/lapic.c | 5 +-
arch/x86/kvm/pmu_amd.c | 8 +-
arch/x86/power/cpu.c | 21 +-
arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi | 8 +-
arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi | 8 +-
arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi | 4 +-
block/compat_ioctl.c | 2 +-
crypto/authenc.c | 2 +-
drivers/acpi/acpica/nswalk.c | 3 +
drivers/acpi/apei/bert.c | 8 +-
drivers/acpi/battery.c | 12 +
drivers/acpi/cppc_acpi.c | 5 +
drivers/acpi/video_detect.c | 75 ++
drivers/ata/pata_hpt37x.c | 18 +-
drivers/ata/pata_marvell.c | 2 +
drivers/atm/eni.c | 2 +
drivers/atm/firestream.c | 2 +
drivers/base/power/main.c | 6 +-
drivers/block/drbd/drbd_int.h | 8 +-
drivers/block/drbd/drbd_nl.c | 41 +-
drivers/block/drbd/drbd_state.c | 18 +-
drivers/block/drbd/drbd_state_change.h | 8 +-
drivers/block/loop.c | 10 +-
drivers/block/virtio_blk.c | 12 +-
drivers/block/xen-blkfront.c | 67 +-
drivers/char/virtio_console.c | 15 +-
drivers/clk/clk-clps711x.c | 2 +
drivers/clk/loongson1/clk-loongson1c.c | 1 +
drivers/clk/qcom/clk-rcg2.c | 1 +
drivers/clk/tegra/clk-emc.c | 1 +
drivers/clk/uniphier/clk-uniphier-fixed-rate.c | 1 +
drivers/clocksource/Kconfig | 4 +
drivers/clocksource/acpi_pm.c | 6 +-
drivers/clocksource/arm_arch_timer.c | 192 ++++-
drivers/crypto/ccp/ccp-dmaengine.c | 16 +
drivers/crypto/mxs-dcp.c | 2 +-
drivers/crypto/qat/qat_common/qat_crypto.c | 8 +
drivers/crypto/vmx/Kconfig | 4 +
drivers/dma/at_xdmac.c | 12 +-
drivers/dma/imx-sdma.c | 4 +-
drivers/firmware/efi/vars.c | 5 +-
drivers/firmware/psci.c | 15 +
drivers/firmware/qemu_fw_cfg.c | 10 +-
drivers/gpio/gpio-ts4900.c | 24 +-
drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +
drivers/gpu/drm/drm_edid.c | 10 +-
drivers/gpu/drm/imx/parallel-display.c | 4 +-
drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c | 3 +
drivers/gpu/drm/tegra/dsi.c | 4 +-
drivers/gpu/ipu-v3/ipu-di.c | 5 +-
drivers/hid/hid-debug.c | 4 +-
drivers/hid/hid-input.c | 2 +
drivers/hid/i2c-hid/i2c-hid-core.c | 32 +-
drivers/hwmon/pmbus/pmbus.h | 1 +
drivers/hwmon/pmbus/pmbus_core.c | 18 +-
drivers/hwmon/sch56xx-common.c | 2 +-
.../hwtracing/coresight/coresight-etm4x-sysfs.c | 8 +-
drivers/i2c/busses/Kconfig | 2 +-
drivers/i2c/busses/i2c-bcm2835.c | 11 +
drivers/i2c/busses/i2c-pasemi.c | 6 +
drivers/i2c/busses/i2c-xiic.c | 3 +-
drivers/i2c/muxes/i2c-demux-pinctrl.c | 5 +-
drivers/iio/adc/men_z188_adc.c | 9 +-
drivers/iio/adc/twl6030-gpadc.c | 2 +
drivers/iio/inkern.c | 34 +-
drivers/infiniband/ulp/srp/ib_srp.c | 6 +-
drivers/input/mouse/elan_i2c_core.c | 64 +-
drivers/input/tablet/aiptek.c | 10 +-
drivers/iommu/arm-smmu-v3.c | 1 +
drivers/irqchip/irq-nvic.c | 2 +
drivers/md/dm-ioctl.c | 2 +
drivers/media/pci/cx88/cx88-mpeg.c | 3 +
drivers/media/platform/davinci/vpif.c | 1 +
drivers/media/usb/go7007/s2250-board.c | 10 +-
drivers/media/usb/hdpvr/hdpvr-video.c | 4 +-
drivers/memory/emif.c | 8 +-
drivers/mfd/asic3.c | 10 +-
drivers/mfd/mc13xxx-core.c | 4 +-
drivers/misc/kgdbts.c | 4 +-
drivers/mmc/core/host.c | 15 +-
drivers/mtd/nand/brcmnand/brcmnand.c | 2 +-
drivers/mtd/onenand/generic.c | 7 +-
drivers/mtd/ubi/fastmap.c | 28 +-
drivers/net/arcnet/com20020-pci.c | 3 +
drivers/net/can/rcar/rcar_canfd.c | 6 +-
drivers/net/can/usb/ems_usb.c | 1 -
drivers/net/can/usb/gs_usb.c | 10 +-
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 4 +-
drivers/net/ethernet/chelsio/cxgb3/t3_hw.c | 2 +
drivers/net/ethernet/intel/e1000e/ich8lan.c | 4 +-
.../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 2 +-
drivers/net/ethernet/micrel/Kconfig | 1 +
drivers/net/ethernet/nxp/lpc_eth.c | 5 +-
drivers/net/ethernet/qlogic/qed/qed_sriov.c | 18 +-
drivers/net/ethernet/qlogic/qed/qed_vf.c | 7 +
drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h | 10 +-
drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 6 +-
drivers/net/ethernet/sfc/mcdi.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c | 8 -
drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.h | 4 +
.../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 13 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +-
.../net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 +-
drivers/net/ethernet/sun/sunhme.c | 6 +-
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 4 +-
drivers/net/hamradio/6pack.c | 4 +-
drivers/net/hamradio/mkiss.c | 2 +
drivers/net/phy/broadcom.c | 21 +
drivers/net/slip/slip.c | 2 +-
drivers/net/usb/cdc_ether.c | 12 +
drivers/net/usb/cdc_mbim.c | 5 +
drivers/net/usb/sr9700.c | 2 +-
drivers/net/usb/zaurus.c | 12 +
drivers/net/veth.c | 2 +-
drivers/net/vxlan.c | 4 +-
drivers/net/wireless/ath/ath5k/eeprom.c | 3 +
drivers/net/wireless/ath/ath9k/htc_hst.c | 5 +
drivers/net/wireless/ath/carl9170/main.c | 2 +-
.../broadcom/brcm80211/brcmfmac/firmware.c | 2 +
.../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 48 +-
.../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c | 2 +-
drivers/net/wireless/mac80211_hwsim.c | 13 +
drivers/net/wireless/ray_cs.c | 6 +
drivers/net/xen-netback/xenbus.c | 12 +-
drivers/net/xen-netfront.c | 54 +-
drivers/nfc/port100.c | 2 +
drivers/nfc/st21nfca/se.c | 10 +
drivers/pci/hotplug/pciehp_hpc.c | 2 +
drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 2 +
drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +-
drivers/pinctrl/pinconf-generic.c | 6 +-
drivers/pinctrl/pinctrl-rockchip.c | 2 +
drivers/platform/x86/samsung-laptop.c | 2 -
drivers/power/supply/ab8500_fg.c | 4 +-
drivers/power/supply/wm8350_power.c | 97 ++-
drivers/ptp/ptp_sysfs.c | 4 +-
drivers/pwm/pwm-lpc18xx-sct.c | 20 +-
drivers/remoteproc/qcom_wcnss.c | 1 +
drivers/rtc/rtc-wm8350.c | 11 +-
drivers/scsi/aha152x.c | 6 +-
drivers/scsi/bfa/bfad_attr.c | 26 +-
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 2 +-
drivers/scsi/libfc/fc_exch.c | 1 +
drivers/scsi/libsas/sas_ata.c | 2 +-
drivers/scsi/mvsas/mv_init.c | 5 +-
drivers/scsi/pm8001/pm8001_hwi.c | 13 +-
drivers/scsi/pm8001/pm80xx_hwi.c | 11 +-
drivers/scsi/qla2xxx/qla_isr.c | 1 +
drivers/scsi/xen-scsifront.c | 3 +-
drivers/scsi/zorro7xx.c | 2 +
drivers/soc/fsl/qe/qe_io.c | 2 +
drivers/soc/ti/wkup_m3_ipc.c | 4 +-
drivers/spi/spi-tegra114.c | 4 +
drivers/spi/spi-tegra20-slink.c | 8 +-
drivers/staging/fbtft/fb_st7789v.c | 2 +
drivers/staging/gdm724x/gdm_lte.c | 5 +-
drivers/thermal/int340x_thermal/int3400_thermal.c | 2 +-
drivers/tty/hvc/hvc_iucv.c | 4 +-
drivers/tty/mxser.c | 15 +-
drivers/tty/n_gsm.c | 4 +-
drivers/tty/serial/8250/8250_of.c | 30 +-
drivers/tty/serial/kgdboc.c | 6 +-
drivers/tty/serial/samsung.c | 5 +-
drivers/usb/dwc3/dwc3-omap.c | 2 +-
drivers/usb/dwc3/gadget.c | 2 +
drivers/usb/gadget/function/rndis.c | 9 +
drivers/usb/gadget/function/rndis.h | 1 +
drivers/usb/gadget/legacy/inode.c | 10 +-
drivers/usb/gadget/udc/core.c | 3 -
drivers/usb/gadget/udc/udc-xilinx.c | 6 +
drivers/usb/host/xhci.c | 9 +-
drivers/usb/serial/Kconfig | 1 +
drivers/usb/serial/ch341.c | 1 -
drivers/usb/serial/option.c | 12 +
drivers/usb/serial/pl2303.c | 1 +
drivers/usb/serial/pl2303.h | 3 +
drivers/usb/serial/usb-serial-simple.c | 7 +
drivers/usb/storage/ene_ub6250.c | 155 ++--
drivers/usb/storage/realtek_cr.c | 2 +-
drivers/vhost/vsock.c | 21 +-
drivers/video/fbdev/atafb.c | 12 +-
drivers/video/fbdev/cirrusfb.c | 16 +-
drivers/video/fbdev/core/fbcvt.c | 53 +-
drivers/video/fbdev/nvidia/nv_i2c.c | 2 +-
.../fbdev/omap2/omapfb/displays/connector-dvi.c | 1 +
.../fbdev/omap2/omapfb/displays/panel-dsi-cm.c | 8 +-
.../omap2/omapfb/displays/panel-sony-acx565akm.c | 2 +-
.../omap2/omapfb/displays/panel-tpo-td043mtea1.c | 4 +-
drivers/video/fbdev/sm712fb.c | 46 +-
drivers/video/fbdev/smscufx.c | 3 +-
drivers/video/fbdev/w100fb.c | 15 +-
drivers/w1/slaves/w1_therm.c | 8 +-
drivers/xen/gntalloc.c | 25 +-
drivers/xen/grant-table.c | 59 +-
drivers/xen/xenbus/xenbus_client.c | 24 +-
fs/btrfs/extent-tree.c | 1 +
fs/cifs/cifsfs.c | 3 +-
fs/cifs/link.c | 3 +
fs/configfs/dir.c | 14 +
fs/ext2/super.c | 6 +-
fs/ext4/inode.c | 36 +-
fs/ext4/super.c | 19 +-
fs/file.c | 73 +-
fs/gfs2/rgrp.c | 12 +-
fs/jffs2/build.c | 4 +-
fs/jffs2/fs.c | 2 +-
fs/jffs2/scan.c | 6 +-
fs/jfs/inode.c | 3 +-
fs/jfs/jfs_dmap.c | 7 +
fs/nfs/callback_xdr.c | 4 -
fs/nfsd/nfsproc.c | 2 +-
fs/nfsd/xdr.h | 2 +-
fs/ntfs/inode.c | 4 +
fs/sysfs/file.c | 3 +-
fs/tracefs/inode.c | 5 +-
fs/ubifs/dir.c | 2 +
fs/ubifs/ioctl.c | 2 +-
include/linux/arm-smccc.h | 81 +++
include/linux/blkdev.h | 8 +
include/linux/bpf.h | 11 +
include/linux/compiler-gcc.h | 2 +-
include/linux/etherdevice.h | 5 +-
include/linux/mlx5/mlx5_ifc.h | 4 +-
include/linux/module.h | 2 +-
include/linux/netdevice.h | 6 +-
include/net/checksum.h | 5 +
include/net/netfilter/nf_queue.h | 2 +-
include/net/xfrm.h | 9 +-
include/uapi/linux/input-event-codes.h | 3 +-
include/xen/grant_table.h | 19 +-
init/main.c | 6 +-
kernel/events/core.c | 3 +
kernel/power/hibernate.c | 2 +-
kernel/power/suspend_test.c | 8 +-
kernel/printk/printk.c | 6 +-
kernel/ptrace.c | 47 +-
kernel/sched/debug.c | 10 -
kernel/smp.c | 2 +-
kernel/sysctl.c | 8 +
kernel/trace/trace.c | 10 +-
lib/Kconfig | 1 -
lib/raid6/test/test.c | 1 -
localversion-rt | 2 +-
mm/kmemleak.c | 8 +-
mm/memblock.c | 10 +-
mm/memcontrol.c | 2 +-
mm/memory.c | 24 +-
mm/mempolicy.c | 9 +-
mm/mmap.c | 2 +-
mm/mremap.c | 3 +
mm/page_alloc.c | 13 +-
mm/rmap.c | 35 +-
mm/shmem.c | 7 +-
net/ax25/af_ax25.c | 7 +
net/batman-adv/hard-interface.c | 13 +-
net/bluetooth/hci_event.c | 3 +-
net/core/net-sysfs.c | 2 +-
net/core/skbuff.c | 4 +-
net/dcb/dcbnl.c | 44 ++
net/ipv4/af_inet.c | 5 +-
net/ipv4/tcp.c | 10 +-
net/ipv6/ip6_offload.c | 2 +
net/ipv6/ip6_output.c | 11 +-
net/key/af_key.c | 6 +-
net/llc/af_llc.c | 49 +-
net/mac80211/cfg.c | 3 -
net/mac80211/rx.c | 4 +-
net/netfilter/nf_conntrack_proto_tcp.c | 17 +-
net/netfilter/nf_queue.c | 23 +-
net/netfilter/nf_tables_core.c | 2 +-
net/netfilter/nfnetlink_queue.c | 12 +-
net/netlink/af_netlink.c | 9 +
net/nfc/nci/core.c | 4 +
net/openvswitch/actions.c | 46 +-
net/openvswitch/flow_netlink.c | 6 +-
net/packet/af_packet.c | 24 +-
net/sctp/sctp_diag.c | 9 +-
net/sunrpc/sched.c | 4 +-
net/sunrpc/xprt.c | 7 +
net/sunrpc/xprtrdma/transport.c | 4 +-
net/wireless/nl80211.c | 3 +-
net/x25/af_x25.c | 11 +-
net/xfrm/xfrm_policy.c | 24 +-
net/xfrm/xfrm_state.c | 8 +-
net/xfrm/xfrm_user.c | 14 +-
scripts/gcc-plugins/latent_entropy_plugin.c | 44 +-
scripts/mod/modpost.c | 2 +-
security/selinux/xfrm.c | 2 +-
security/smack/smack_lsm.c | 2 +-
security/tomoyo/load_policy.c | 4 +-
sound/core/pcm_misc.c | 2 +-
sound/core/pcm_native.c | 4 +
sound/firewire/fcp.c | 4 +-
sound/isa/cs423x/cs4236.c | 8 +-
sound/pci/ac97/ac97_codec.c | 4 +-
sound/pci/cmipci.c | 3 +-
sound/soc/atmel/atmel_ssc_dai.c | 5 +-
sound/soc/atmel/sam9g20_wm8731.c | 1 +
sound/soc/codecs/wm8350.c | 28 +-
sound/soc/davinci/davinci-i2s.c | 5 +-
sound/soc/fsl/imx-es8328.c | 1 +
sound/soc/mxs/mxs-saif.c | 5 +-
sound/soc/mxs/mxs-sgtl5000.c | 3 +
sound/soc/sh/fsi.c | 19 +-
sound/soc/soc-core.c | 2 +-
sound/soc/soc-dapm.c | 6 +-
sound/soc/soc-generic-dmaengine-pcm.c | 6 +-
sound/soc/soc-ops.c | 4 +-
sound/soc/soc-topology.c | 3 +-
sound/spi/at73c213.c | 27 +-
sound/usb/midi.c | 1 +
sound/usb/mixer_quirks.c | 7 +-
sound/usb/usbaudio.h | 2 +-
tools/arch/x86/include/asm/cpufeatures.h | 2 +-
tools/build/feature/Makefile | 2 +-
tools/testing/selftests/memfd/memfd_test.c | 1 +
tools/testing/selftests/vm/userfaultfd.c | 1 +
tools/testing/selftests/x86/check_cc.sh | 2 +-
virt/kvm/kvm_main.c | 13 +
405 files changed, 5390 insertions(+), 1604 deletions(-)
---
^ permalink raw reply [flat|nested] 8+ messages in thread
* [ANNOUNCE] 4.9.327-rt197
@ 2022-05-13 0:46 ` Mark Gross
0 siblings, 0 replies; 8+ messages in thread
From: Mark Gross @ 2022-09-23 20:03 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Danie l Wagner, Tom Zanussi, Clark Williams, Junxiao Chang
Hello RT-list!
I'm pleased to announce the 4.9.327-rt197 stable release.
You can get this release via the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
branch: v4.9-rt-next
Head SHA1: d47e3fd2615dbd0aa6eac3745cd209fdd93a868a
This rebase was a tricky one. Sebastian provided some patches and I was too
dense to figure out where and how to apply them. My colleague Junxiao did the
following and I replicated the steps.
1) convert the v4.9-rt-rebase branch into a quilt series.
2) applied the series to v4.9.327 skipping patches where changes to the random
number logic has conflicts.
3) apply the patches Sebastian provided.
4) git quiltimport and pushed it to the above branch.
It seems to compile and it passes the RT BAT testing Junxiao does.
As this was a tricky one I request people to give a good look over.
Enjoy!
Mark Gross
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [ANNOUNCE] 4.9.327-rt197
2022-05-13 0:46 ` [ANNOUNCE] 4.9.312-rt193 Mark Gross
(?)
(?)
@ 2022-09-23 20:09 ` Mark Gross
2022-09-30 14:58 ` Sebastian Andrzej Siewior
-1 siblings, 1 reply; 8+ messages in thread
From: Mark Gross @ 2022-09-23 20:09 UTC (permalink / raw)
To: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Danie l Wagner, Tom Zanussi, Clark Williams, Junxiao Chang
On Fri, Sep 23, 2022 at 01:03:24PM -0700, Mark Gross wrote:
> Hello RT-list!
>
> I'm pleased to announce the 4.9.327-rt197 stable release.
>
> You can get this release via the git tree at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
>
> branch: v4.9-rt-next
> Head SHA1: d47e3fd2615dbd0aa6eac3745cd209fdd93a868a
corection: Head SHA1:2ba8778e2b30c114a4c9902c6f3ead2aa2b66f39
>
>
> This rebase was a tricky one. Sebastian provided some patches and I was too
> dense to figure out where and how to apply them. My colleague Junxiao did the
> following and I replicated the steps.
> 1) convert the v4.9-rt-rebase branch into a quilt series.
> 2) applied the series to v4.9.327 skipping patches where changes to the random
> number logic has conflicts.
> 3) apply the patches Sebastian provided.
> 4) git quiltimport and pushed it to the above branch.
>
> It seems to compile and it passes the RT BAT testing Junxiao does.
>
> As this was a tricky one I request people to give a good look over.
>
>
> Enjoy!
> Mark Gross
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [ANNOUNCE] 4.9.327-rt197
2022-09-23 20:09 ` [ANNOUNCE] 4.9.327-rt197 Mark Gross
@ 2022-09-30 14:58 ` Sebastian Andrzej Siewior
2022-10-14 2:04 ` Mark Gross
0 siblings, 1 reply; 8+ messages in thread
From: Sebastian Andrzej Siewior @ 2022-09-30 14:58 UTC (permalink / raw)
To: Mark Gross
Cc: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Danie l Wagner, Tom Zanussi,
Clark Williams, Junxiao Chang
On 2022-09-23 13:09:41 [-0700], Mark Gross wrote:
> > As this was a tricky one I request people to give a good look over.
You did good. I not so much. If you could please add the following patch
on top, then it will compile also on !RT.
Thank you for work.
------->8----------
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 30 Sep 2022 16:55:34 +0200
Subject: [PATCH] local_lock: Provide INIT_LOCAL_LOCK().
The original code was using INIT_LOCAL_LOCK() and I tried to sneak
around it and forgot that this code also needs to compile on !RT
platforms.
Provide INIT_LOCAL_LOCK() to initialize properly on RT and do nothing on
!RT. Let random.c use which is the only user so far and oes not compile
on !RT otherwise.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
drivers/char/random.c | 4 ++--
include/linux/locallock.h | 5 +++++
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index daea466812fed..86c475f70343d 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -236,7 +236,7 @@ struct crng {
static DEFINE_PER_CPU(struct crng, crngs) = {
.generation = ULONG_MAX,
- .lock.lock = __SPIN_LOCK_UNLOCKED(crngs.lock.lock),
+ .lock = INIT_LOCAL_LOCK(crngs.lock),
};
/* Used by crng_reseed() and crng_make_state() to extract a new seed from the input pool. */
@@ -515,7 +515,7 @@ struct batch_ ##type { \
}; \
\
static DEFINE_PER_CPU(struct batch_ ##type, batched_entropy_ ##type) = { \
- .lock.lock = __SPIN_LOCK_UNLOCKED(batched_entropy_ ##type.lock.lock), \
+ .lock = INIT_LOCAL_LOCK(batched_entropy_ ##type.lock), \
.position = UINT_MAX \
}; \
\
diff --git a/include/linux/locallock.h b/include/linux/locallock.h
index 0c3ff5b23f6a1..70af9a177197e 100644
--- a/include/linux/locallock.h
+++ b/include/linux/locallock.h
@@ -22,6 +22,8 @@ struct local_irq_lock {
unsigned long flags;
};
+#define INIT_LOCAL_LOCK(lvar) { .lock = __SPIN_LOCK_UNLOCKED((lvar).lock.lock) }
+
#define DEFINE_LOCAL_IRQ_LOCK(lvar) \
DEFINE_PER_CPU(struct local_irq_lock, lvar) = { \
.lock = __SPIN_LOCK_UNLOCKED((lvar).lock) }
@@ -256,6 +258,9 @@ static inline int __local_unlock_irqrestore(struct local_irq_lock *lv,
#else /* PREEMPT_RT_BASE */
+struct local_irq_lock { };
+#define INIT_LOCAL_LOCK(lvar) { }
+
#define DEFINE_LOCAL_IRQ_LOCK(lvar) __typeof__(const int) lvar
#define DECLARE_LOCAL_IRQ_LOCK(lvar) extern __typeof__(const int) lvar
--
2.37.2
Sebastian
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [ANNOUNCE] 4.9.327-rt197
2022-05-13 0:46 ` [ANNOUNCE] 4.9.312-rt193 Mark Gross
` (2 preceding siblings ...)
(?)
@ 2022-10-04 10:30 ` Alexander Dahl
2022-10-14 0:29 ` Mark Gross
-1 siblings, 1 reply; 8+ messages in thread
From: Alexander Dahl @ 2022-10-04 10:30 UTC (permalink / raw)
To: Mark Gross
Cc: LKML, linux-rt-users, Steven Rostedt, Thomas Gleixner,
Carsten Emde, John Kacur, Sebastian Andrzej Siewior,
Danie l Wagner, Tom Zanussi, Clark Williams, Junxiao Chang
Hei Mark,
Am Fri, Sep 23, 2022 at 01:03:24PM -0700 schrieb Mark Gross:
> Hello RT-list!
>
> I'm pleased to announce the 4.9.327-rt197 stable release.
My MUA shows the identical Message-ID for your mail on 4.9.327-rt197
as for your mail on 4.9.312-rt193 which you send back on Thu, 12 May
2022 17:46:22 -0700:
<165222469651.210737.17409564443317121708@T470>
How is this even possible? Maybe some issue with some release script?
I only notice because mutt marked the second one as duplicate.
Greets
Alex
>
> You can get this release via the git tree at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
>
> branch: v4.9-rt-next
> Head SHA1: d47e3fd2615dbd0aa6eac3745cd209fdd93a868a
>
>
> This rebase was a tricky one. Sebastian provided some patches and I was too
> dense to figure out where and how to apply them. My colleague Junxiao did the
> following and I replicated the steps.
> 1) convert the v4.9-rt-rebase branch into a quilt series.
> 2) applied the series to v4.9.327 skipping patches where changes to the random
> number logic has conflicts.
> 3) apply the patches Sebastian provided.
> 4) git quiltimport and pushed it to the above branch.
>
> It seems to compile and it passes the RT BAT testing Junxiao does.
>
> As this was a tricky one I request people to give a good look over.
>
>
> Enjoy!
> Mark Gross
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [ANNOUNCE] 4.9.327-rt197
2022-10-04 10:30 ` Alexander Dahl
@ 2022-10-14 0:29 ` Mark Gross
0 siblings, 0 replies; 8+ messages in thread
From: Mark Gross @ 2022-10-14 0:29 UTC (permalink / raw)
To: Mark Gross, LKML, linux-rt-users, Steven Rostedt,
Thomas Gleixner, Carsten Emde, John Kacur,
Sebastian Andrzej Siewior, Danie l Wagner, Tom Zanussi,
Clark Williams, Junxiao Chang
On Tue, Oct 04, 2022 at 12:30:03PM +0200, Alexander Dahl wrote:
> Hei Mark,
>
> Am Fri, Sep 23, 2022 at 01:03:24PM -0700 schrieb Mark Gross:
> > Hello RT-list!
> >
> > I'm pleased to announce the 4.9.327-rt197 stable release.
>
> My MUA shows the identical Message-ID for your mail on 4.9.327-rt197
> as for your mail on 4.9.312-rt193 which you send back on Thu, 12 May
> 2022 17:46:22 -0700:
>
> <165222469651.210737.17409564443317121708@T470>
>
> How is this even possible? Maybe some issue with some release script?
my workflow normally creates a new "anounce-rt" file and because this time I
was pushing a -next because of merge conflicts I resued my last anounce-rt file
(Message ID and all) and used "mutt -H announce-rt " to send the message.
I should have been more careful.
Sorry for my laziness.
--mark
>
> I only notice because mutt marked the second one as duplicate.
I also use mutt.
>
> Greets
> Alex
>
> >
> > You can get this release via the git tree at:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
> >
> > branch: v4.9-rt-next
> > Head SHA1: d47e3fd2615dbd0aa6eac3745cd209fdd93a868a
> >
> >
> > This rebase was a tricky one. Sebastian provided some patches and I was too
> > dense to figure out where and how to apply them. My colleague Junxiao did the
> > following and I replicated the steps.
> > 1) convert the v4.9-rt-rebase branch into a quilt series.
> > 2) applied the series to v4.9.327 skipping patches where changes to the random
> > number logic has conflicts.
> > 3) apply the patches Sebastian provided.
> > 4) git quiltimport and pushed it to the above branch.
> >
> > It seems to compile and it passes the RT BAT testing Junxiao does.
> >
> > As this was a tricky one I request people to give a good look over.
> >
> >
> > Enjoy!
> > Mark Gross
> >
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [ANNOUNCE] 4.9.327-rt197
2022-09-30 14:58 ` Sebastian Andrzej Siewior
@ 2022-10-14 2:04 ` Mark Gross
0 siblings, 0 replies; 8+ messages in thread
From: Mark Gross @ 2022-10-14 2:04 UTC (permalink / raw)
To: Sebastian Andrzej Siewior
Cc: Mark Gross, LKML, linux-rt-users, Steven Rostedt,
Thomas Gleixner, Carsten Emde, John Kacur, Danie l Wagner,
Tom Zanussi, Clark Williams, Junxiao Chang
On Fri, Sep 30, 2022 at 04:58:41PM +0200, Sebastian Andrzej Siewior wrote:
> On 2022-09-23 13:09:41 [-0700], Mark Gross wrote:
> > > As this was a tricky one I request people to give a good look over.
>
> You did good. I not so much. If you could please add the following patch
> on top, then it will compile also on !RT.
>
> Thank you for work.
>
> ------->8----------
>
> From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Date: Fri, 30 Sep 2022 16:55:34 +0200
> Subject: [PATCH] local_lock: Provide INIT_LOCAL_LOCK().
>
> The original code was using INIT_LOCAL_LOCK() and I tried to sneak
> around it and forgot that this code also needs to compile on !RT
> platforms.
>
> Provide INIT_LOCAL_LOCK() to initialize properly on RT and do nothing on
> !RT. Let random.c use which is the only user so far and oes not compile
> on !RT otherwise.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
> drivers/char/random.c | 4 ++--
> include/linux/locallock.h | 5 +++++
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/char/random.c b/drivers/char/random.c
> index daea466812fed..86c475f70343d 100644
> --- a/drivers/char/random.c
> +++ b/drivers/char/random.c
> @@ -236,7 +236,7 @@ struct crng {
>
> static DEFINE_PER_CPU(struct crng, crngs) = {
> .generation = ULONG_MAX,
> - .lock.lock = __SPIN_LOCK_UNLOCKED(crngs.lock.lock),
> + .lock = INIT_LOCAL_LOCK(crngs.lock),
> };
>
> /* Used by crng_reseed() and crng_make_state() to extract a new seed from the input pool. */
> @@ -515,7 +515,7 @@ struct batch_ ##type { \
> }; \
> \
> static DEFINE_PER_CPU(struct batch_ ##type, batched_entropy_ ##type) = { \
> - .lock.lock = __SPIN_LOCK_UNLOCKED(batched_entropy_ ##type.lock.lock), \
> + .lock = INIT_LOCAL_LOCK(batched_entropy_ ##type.lock), \
> .position = UINT_MAX \
> }; \
> \
> diff --git a/include/linux/locallock.h b/include/linux/locallock.h
> index 0c3ff5b23f6a1..70af9a177197e 100644
> --- a/include/linux/locallock.h
> +++ b/include/linux/locallock.h
> @@ -22,6 +22,8 @@ struct local_irq_lock {
> unsigned long flags;
> };
>
> +#define INIT_LOCAL_LOCK(lvar) { .lock = __SPIN_LOCK_UNLOCKED((lvar).lock.lock) }
> +
> #define DEFINE_LOCAL_IRQ_LOCK(lvar) \
> DEFINE_PER_CPU(struct local_irq_lock, lvar) = { \
> .lock = __SPIN_LOCK_UNLOCKED((lvar).lock) }
> @@ -256,6 +258,9 @@ static inline int __local_unlock_irqrestore(struct local_irq_lock *lv,
>
> #else /* PREEMPT_RT_BASE */
>
> +struct local_irq_lock { };
> +#define INIT_LOCAL_LOCK(lvar) { }
> +
> #define DEFINE_LOCAL_IRQ_LOCK(lvar) __typeof__(const int) lvar
> #define DECLARE_LOCAL_IRQ_LOCK(lvar) extern __typeof__(const int) lvar
>
> --
> 2.37.2
>
>
> Sebastian
Thanks! I've applied this and starting some testing. I've also pushed the
update to v4.9-rt-next if anyone feels like giving a spin before I make the
release.
I think I'll finally get the release done in the next few days.
--mark
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2022-10-14 2:04 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-05-10 23:19 [ANNOUNCE] 4.9.312-rt193 Mark Gross
2022-09-23 20:03 ` [ANNOUNCE] 4.9.327-rt197 Mark Gross
2022-05-13 0:46 ` [ANNOUNCE] 4.9.312-rt193 Mark Gross
2022-09-23 20:09 ` [ANNOUNCE] 4.9.327-rt197 Mark Gross
2022-09-30 14:58 ` Sebastian Andrzej Siewior
2022-10-14 2:04 ` Mark Gross
2022-10-04 10:30 ` Alexander Dahl
2022-10-14 0:29 ` Mark Gross
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