[PATCH 5.7 000/179] 5.7.11-rc1 review

[PATCH 5.7 000/179] 5.7.11-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 5.7.11 release.
There are 179 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.11-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 5.7.11-rc1

Mark O'Donovan <shiftee@posteo.net>
    ath9k: Fix regression with Atheros 9271

Qiujun Huang <hqjagain@gmail.com>
    ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb

Mikulas Patocka <mpatocka@redhat.com>
    dm integrity: fix integrity recalculation that is improperly skipped

Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
    ASoC: Intel: bdw-rt5677: fix non BE conversion

Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
    ASoC: topology: fix tlvs in error handling for widget_dmixer

Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
    ASoC: topology: fix kernel oops on route addition error

Geert Uytterhoeven <geert@linux-m68k.org>
    ASoC: qcom: Drop HAS_DMA dependency to fix link failure

Hans de Goede <hdegoede@redhat.com>
    ASoC: rt5670: Add new gpio1_is_ext_spk_en quirk and enable it on the Lenovo Miix 2 10

Joerg Roedel <jroedel@suse.de>
    x86, vmlinux.lds: Page-align end of ..page_aligned sections

John David Anglin <dave.anglin@bell.net>
    parisc: Add atomic64_set_release() define to avoid CPU soft lockups

Nathan Chancellor <natechancellor@gmail.com>
    arm64: vdso32: Fix '--prefix=' value for newer versions of clang

Qiu Wenbo <qiuwenbo@phytium.com.cn>
    drm/amd/powerplay: fix a crash when overclocking Vega M

Paweł Gronowski <me@woland.xyz>
    drm/amdgpu: Fix NULL dereference in dpm sysfs handlers

Eddie James <eajames@linux.ibm.com>
    mmc: sdhci-of-aspeed: Fix clock divider calculation

Michael J. Ruhl <michael.j.ruhl@intel.com>
    io-mapping: indicate mapping failure

Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    khugepaged: fix null-pointer dereference due to race

Barry Song <song.bao.hua@hisilicon.com>
    mm/hugetlb: avoid hardcoding while checking if cma is enabled

Muchun Song <songmuchun@bytedance.com>
    mm: memcg/slab: fix memory leak at non-root kmem_cache destroy

Hugh Dickins <hughd@google.com>
    mm/memcg: fix refcount error while moving and swapping

Chengguang Xu <cgxu519@mykernel.net>
    vfs/xattr: mm/shmem: kernfs: release simple xattr entry in a right way

Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    mm/mmap.c: close race between munmap() and expand_upwards()/downwards()

Fangrui Song <maskray@google.com>
    Makefile: Fix GCC_TOOLCHAIN_DIR prefix for Clang cross compilation

Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
    vt: Reject zero-sized screen buffer size.

Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
    fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins.

Eric Biggers <ebiggers@google.com>
    /dev/mem: Add missing memory barriers for devmem_inode

Georgi Djakov <georgi.djakov@linaro.org>
    interconnect: msm8916: Fix buswidth of pcnoc_s nodes

Serge Semin <Sergey.Semin@baikalelectronics.ru>
    serial: 8250_mtk: Fix high-speed baud rates clamping

Yang Yingliang <yangyingliang@huawei.com>
    serial: 8250: fix null-ptr-deref in serial8250_start_tx()

Johan Hovold <johan@kernel.org>
    serial: tegra: fix CREAD handling for PIO

Ian Abbott <abbotti@mev.co.uk>
    staging: comedi: addi_apci_1564: check INSN_CONFIG_DIGITAL_TRIG shift

Ian Abbott <abbotti@mev.co.uk>
    staging: comedi: addi_apci_1500: check INSN_CONFIG_DIGITAL_TRIG shift

Ian Abbott <abbotti@mev.co.uk>
    staging: comedi: ni_6527: fix INSN_CONFIG_DIGITAL_TRIG support

Ian Abbott <abbotti@mev.co.uk>
    staging: comedi: addi_apci_1032: check INSN_CONFIG_DIGITAL_TRIG shift

Rustam Kovhaev <rkovhaev@gmail.com>
    staging: wlan-ng: properly check endpoint types

Helmut Grohne <helmut.grohne@intenta.de>
    tty: xilinx_uartps: Really fix id assignment

Johannes Berg <johannes.berg@intel.com>
    iwlwifi: mvm: don't call iwl_mvm_free_inactive_queue() under RCU

Steve French <stfrench@microsoft.com>
    Revert "cifs: Fix the target file was deleted when rename failed."

Forest Crossman <cyrozap@gmail.com>
    usb: xhci: Fix ASM2142/ASM3142 DMA addressing

Jon Hunter <jonathanh@nvidia.com>
    usb: tegra: Fix allocation for the FPCI context

Chunfeng Yun <chunfeng.yun@mediatek.com>
    usb: xhci-mtk: fix the failure of bandwidth allocation

Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
    binder: Don't use mmput() from shrinker function.

Arvind Sankar <nivedita@alum.mit.edu>
    x86/boot: Don't add the EFI stub to targets

Palmer Dabbelt <palmerdabbelt@google.com>
    RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw

Qi Liu <liuqi115@huawei.com>
    drivers/perf: Prevent forced unbinding of PMU drivers

Will Deacon <will@kernel.org>
    asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()

Arnd Bergmann <arnd@arndb.de>
    x86: math-emu: Fix up 'cmp' insn for clang ias

Will Deacon <will@kernel.org>
    arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP

Qi Liu <liuqi115@huawei.com>
    drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling

PeiSen Hou <pshou@realtek.com.tw>
    ALSA: hda/realtek - fixup for yet another Intel reference board

Cristian Marussi <cristian.marussi@arm.com>
    hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe()

Vasiliy Kupriakov <rublag-ns@yandex.ru>
    platform/x86: asus-wmi: allow BAT1 battery name

Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
    platform/x86: ISST: Add new PCI device ids

Guenter Roeck <linux@roeck-us.net>
    hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D

Jack Xiao <Jack.Xiao@amd.com>
    drm/amdgpu: fix preemption unit test

Jack Xiao <Jack.Xiao@amd.com>
    drm/amdgpu/gfx10: fix race condition for kiq

Chu Lin <linchuyuan@google.com>
    hwmon: (adm1275) Make sure we are reading enough data for different chips

Peter Chen <peter.chen@nxp.com>
    usb: cdns3: trace: fix some endian issues

Peter Chen <peter.chen@nxp.com>
    usb: cdns3: ep0: fix some endian issues

Evgeny Novikov <novikov@ispras.ru>
    usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()

Heikki Krogerus <heikki.krogerus@linux.intel.com>
    usb: dwc3: pci: add support for the Intel Jasper Lake

Heikki Krogerus <heikki.krogerus@linux.intel.com>
    usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant

Derek Basehore <dbasehore@chromium.org>
    Input: elan_i2c - only increment wakeup count on touch

Ilya Katsnelson <me@0upti.me>
    Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen

Leonid Ravich <Leonid.Ravich@emc.com>
    dmaengine: ioat setting ioat timeout as module parameter

Angelo Dureghello <angelo.dureghello@timesys.com>
    dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu

Evgeny Novikov <novikov@ispras.ru>
    hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow

Marc Kleine-Budde <mkl@pengutronix.de>
    regmap: dev_get_regmap_match(): fix string comparison

leilk.liu <leilk.liu@mediatek.com>
    spi: mediatek: use correct SPI_CFG2_REG MACRO

Merlijn Wajer <merlijn@wizzup.org>
    ARM: dts: n900: remove mmc1 card detect gpio

Merlijn Wajer <merlijn@wizzup.org>
    Input: add `SW_MACHINE_COVER`

Christian Hewitt <christianshewitt@gmail.com>
    soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's

Dinghao Liu <dinghao.liu@zju.edu.cn>
    dmaengine: tegra210-adma: Fix runtime PM imbalance on error

Hans de Goede <hdegoede@redhat.com>
    HID: apple: Disable Fn-key key-re-mapping on clone keyboards

Dave Jiang <dave.jiang@intel.com>
    dmaengine: idxd: fix hw descriptor fields for delta record

Yu Kuai <yukuai3@huawei.com>
    dmaengine: ti: k3-udma: add missing put_device() call in of_xudma_dev_get()

Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
    HID: steam: fixes race in handling device list.

Peter Ujfalusi <peter.ujfalusi@ti.com>
    dmaengine: ti: k3-udma: Fix the running channel handling in alloc_chan_resources

Peter Ujfalusi <peter.ujfalusi@ti.com>
    dmaengine: ti: k3-udma: Fix cleanup code for alloc_chan_resources

Caiyuan Xie <caiyuan.xie@cn.alps.com>
    HID: alps: support devices with report id 2

Federico Ricchiuto <fed.ricchiuto@gmail.com>
    HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override

Masahiro Yamada <masahiroy@kernel.org>
    kbuild: fix single target builds for external modules

Atish Patra <atish.patra@wdc.com>
    RISC-V: Do not rely on initrd_start/end computed during early dt parsing

Stefano Garzarella <sgarzare@redhat.com>
    scripts/gdb: fix lx-symbols 'gdb.error' while loading modules

Pi-Hsun Shih <pihsun@chromium.org>
    scripts/decode_stacktrace: strip basepath from all paths

Matthew Howell <matthew.howell@sealevel.com>
    serial: exar: Fix GPIO configuration for Sealevel cards based on XR17V35X

Cong Wang <xiyou.wangcong@gmail.com>
    geneve: fix an uninitialized value in geneve_changelink()

Cong Wang <xiyou.wangcong@gmail.com>
    bonding: check return value of register_netdevice() in bond_newlink()

Douglas Anderson <dianders@chromium.org>
    i2c: i2c-qcom-geni: Fix DMA transfer race

Wolfram Sang <wsa+renesas@sang-engineering.com>
    i2c: rcar: always clear ICSAR to avoid side effects

Claudiu Manoil <claudiu.manoil@nxp.com>
    enetc: Remove the mdio bus on PF probe bailout

J. Bruce Fields <bfields@redhat.com>
    nfsd4: fix NULL dereference in nfsd/clients display code

Bjorn Helgaas <bhelgaas@google.com>
    Revert "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"

Rob Clark <robdclark@chromium.org>
    iommu/qcom: Use domain rather than dev as tlb cookie

Wang Hai <wanghai38@huawei.com>
    net: ethernet: ave: Fix error returns in ave_init

guodeqing <geffrey.guo@huawei.com>
    ipvs: fix the connection sync failed in some cases

Alexander Lobakin <alobakin@marvell.com>
    qed: suppress false-positives interrupt error messages on HW init

Alexander Lobakin <alobakin@marvell.com>
    qed: suppress "don't support RoCE & iWARP" flooding on HW init

Taehee Yoo <ap420073@gmail.com>
    netdevsim: fix unbalaced locking in nsim_create()

Helmut Grohne <helmut.grohne@intenta.de>
    net: dsa: microchip: call phy_remove_link_mode during probe

Jian Shen <shenjian15@huawei.com>
    net: hns3: fix return value error when query MAC link status fail

Yunsheng Lin <linyunsheng@huawei.com>
    net: hns3: fix error handling for desc filling

Yunsheng Lin <linyunsheng@huawei.com>
    net: hns3: fix for not calculating TX BD send size correctly

Jason Gunthorpe <jgg@nvidia.com>
    RDMA/mlx5: Prevent prefetch from racing with implicit destruction

Huang Guobin <huangguobin4@huawei.com>
    net: ag71xx: add missed clk_disable_unprepare in error path of probe

Vinay Kumar Yadav <vinay.yadav@chelsio.com>
    crypto/chtls: fix tls alert messages corrupted by tls data

Shannon Nelson <snelson@pensando.io>
    ionic: use mutex to protect queue operations

Shannon Nelson <snelson@pensando.io>
    ionic: keep rss hash after fw update

Shannon Nelson <snelson@pensando.io>
    ionic: update filter id after replay

Shannon Nelson <snelson@pensando.io>
    ionic: fix up filter locks and debug msgs

Shannon Nelson <snelson@pensando.io>
    ionic: use offset for ethtool regs data

Liu Jian <liujian56@huawei.com>
    mlxsw: destroy workqueue when trap_register in mlxsw_emad_init

Liu Jian <liujian56@huawei.com>
    dpaa_eth: Fix one possible memleak in dpaa_eth_probe

Zhang Changzhong <zhangchangzhong@huawei.com>
    net: bcmgenet: fix error returns in bcmgenet_probe()

Alessio Bonfiglio <alessio.bonfiglio@mail.polimi.it>
    iwlwifi: Make some Killer Wireless-AC 1550 cards work again

Taehee Yoo <ap420073@gmail.com>
    bonding: check error value of register_netdevice() immediately

Russell King <rmk+kernel@armlinux.org.uk>
    arm64: dts: clearfog-gt-8k: fix switch link configuration

Russell King <rmk+kernel@armlinux.org.uk>
    net: dsa: mv88e6xxx: fix in-band AN link establishment

Vadim Pasternak <vadimp@mellanox.com>
    mlxsw: core: Fix wrong SFP EEPROM reading for upper pages 1-3

Wang Hai <wanghai38@huawei.com>
    net: smc91x: Fix possible memory leak in smc_drv_probe()

Chen-Yu Tsai <wens@csie.org>
    drm: sun4i: hdmi: Fix inverted HPD result

Liu Jian <liujian56@huawei.com>
    ieee802154: fix one possible memleak in adf7242_probe

Sergey Organov <sorganov@gmail.com>
    net: dp83640: fix SIOCSHWTSTAMP to update the struct with actual configuration

Jing Xiangfeng <jingxiangfeng@huawei.com>
    ASoC: Intel: bytcht_es8316: Add missed put_device()

Sergey Organov <sorganov@gmail.com>
    net: fec: fix hardware time stamping by external devices

Maor Gottlieb <maorg@mellanox.com>
    RDMA/cm: Protect access to remote_sidr_table

Leon Romanovsky <leon@kernel.org>
    RDMA/core: Fix race in rdma_alloc_commit_uobject()

Maor Gottlieb <maorg@mellanox.com>
    RDMA/mlx5: Use xa_lock_irq when access to SRQ table

George Kennedy <george.kennedy@oracle.com>
    ax88172a: fix ax88172a_unbind() failures

Stefano Garzarella <sgarzare@redhat.com>
    vsock/virtio: annotate 'the_virtio_vsock' RCU pointer

Ioana Ciornei <ioana.ciornei@nxp.com>
    dpaa2-eth: check fsl_mc_get_endpoint for IS_ERR_OR_NULL()

Florian Westphal <fw@strlen.de>
    netfilter: nf_tables: fix nat hook table deletion

Christophe JAILLET <christophe.jaillet@wanadoo.fr>
    hippi: Fix a size used in a 'pci_free_consistent()' in an error handling path

Matthew Gerlach <matthew.gerlach@linux.intel.com>
    fpga: dfl: fix bug in port reset handshake

Xu Yilun <yilun.xu@intel.com>
    fpga: dfl: pci: reduce the scope of variable 'ret'

Michael Chan <michael.chan@broadcom.com>
    bnxt_en: Fix completion ring sizing with TPA enabled.

Vasundhara Volam <vasundhara-v.volam@broadcom.com>
    bnxt_en: Init ethtool link settings after reading updated PHY configuration.

Vasundhara Volam <vasundhara-v.volam@broadcom.com>
    bnxt_en: Fix race when modifying pause settings.

Ard Biesheuvel <ardb@kernel.org>
    efi/efivars: Expose RT service availability via efivars abstraction

Felix Fietkau <nbd@nbd.name>
    mt76: mt76x02: fix handling MCU timeouts during hw restart

Robbie Ko <robbieko@synology.com>
    btrfs: fix page leaks after failure to lock page for delalloc

Boris Burkov <boris@bur.io>
    btrfs: fix mount failure caused by race with umount

Filipe Manana <fdmanana@suse.com>
    btrfs: fix double free on ulist after backref resolution failure

Thomas Richter <tmricht@linux.ibm.com>
    s390/cpum_cf,perf: change DFLT_CCERROR counter name

Hans de Goede <hdegoede@redhat.com>
    ASoC: Intel: cht_bsw_rt5672: Change bus format to I2S 2 channel

Hans de Goede <hdegoede@redhat.com>
    ASoC: rt5670: Correct RT5670_LDO_SEL_MASK

Takashi Iwai <tiwai@suse.de>
    ALSA: info: Drop WARN_ON() from buffer NULL sanity check

Joonho Wohn <doomsheart@gmail.com>
    ALSA: hda/realtek: Fixed ALC298 sound bug by adding quirk for Samsung Notebook Pen S

Oleg Nesterov <oleg@redhat.com>
    uprobes: Change handle_swbp() to send SIGTRAP with si_code=SI_KERNEL, to fix GDB regression

Qu Wenruo <wqu@suse.com>
    btrfs: reloc: clear DEAD_RELOC_TREE bit for orphan roots to prevent runaway balance

Ilya Ponetayev <i.ponetaev@ndmsystems.com>
    exfat: fix name_hash computation on big endian systems

Hyeongseok Kim <hyeongseok@gmail.com>
    exfat: fix wrong size update of stream entry by typo

Namjae Jeon <namjae.jeon@samsung.com>
    exfat: fix wrong hint_stat initialization in exfat_find_dir_entry()

Namjae Jeon <namjae.jeon@samsung.com>
    exfat: fix overflow issue in exfat_cluster_to_sector()

Olga Kornievskaia <kolga@netapp.com>
    SUNRPC reverting d03727b248d0 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")

Ming Lei <ming.lei@redhat.com>
    dm: do not use waitqueue for request-based DM

Gabriel Krisman Bertazi <krisman@collabora.com>
    dm mpath: pass IO start time to path selector

Aaron Ma <aaron.ma@canonical.com>
    drm/amd/display: add dmcub check on RENOIR

Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
    drm/amd/display: Check DMCU Exists Before Loading

Ralph Campbell <rcampbell@nvidia.com>
    drm/nouveau/nouveau: fix page fault on device private memory

Thomas Gleixner <tglx@linutronix.de>
    irqdomain/treewide: Keep firmware node unconditionally allocated

Miklos Szeredi <mszeredi@redhat.com>
    fuse: fix weird page warning

Gavin Shan <gshan@redhat.com>
    drivers/firmware/psci: Fix memory leakage in alloc_init_cpu_groups()

Christoph Hellwig <hch@lst.de>
    dm: use bio_uninit instead of bio_disassociate_blkg

Steve Schremmer <steve.schremmer@netapp.com>
    scsi: dh: Add Fujitsu device to devinfo and dh lists

Johannes Thumshirn <johannes.thumshirn@wdc.com>
    scsi: mpt3sas: Fix error returns in BRM_status_show

Ben Skeggs <bskeggs@redhat.com>
    drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout

Tom Rix <trix@redhat.com>
    net: sky2: initialize return of gm_phy_read

Kai Vehmanen <kai.vehmanen@linux.intel.com>
    ALSA: hda/hdmi: fix failures at PCM open on Intel ICL and later

Xie He <xie.he.0141@gmail.com>
    drivers/net/wan/lapbether: Fixed the value of hard_header_len

Damien Le Moal <damien.lemoal@wdc.com>
    scsi: mpt3sas: Fix unlock imbalance

Max Filippov <jcmvbkbc@gmail.com>
    xtensa: update *pos in cpuinfo_op.next

Max Filippov <jcmvbkbc@gmail.com>
    xtensa: fix __sync_fetch_and_{and,or}_4 declarations

Tom Rix <trix@redhat.com>
    scsi: scsi_transport_spi: Fix function pointer check

Markus Theil <markus.theil@tu-ilmenau.de>
    mac80211: allow rx of mesh eapol frames with default rx key

Yonghong Song <yhs@fb.com>
    bpf: Set the number of exception entries properly for subprograms

Jacky Hu <hengqing.hu@gmail.com>
    pinctrl: amd: fix npins for uart0 in kerncz_groups

Navid Emamdoost <navid.emamdoost@gmail.com>
    gpio: arizona: put pm_runtime in case of failure

Navid Emamdoost <navid.emamdoost@gmail.com>
    gpio: arizona: handle pm_runtime_get_sync failure case

Douglas Anderson <dianders@chromium.org>
    soc: qcom: rpmh: Dirt can only make you dirtier, not cleaner


-------------

Diffstat:

 Makefile                                           |  8 +-
 arch/arm/boot/dts/omap3-n900.dts                   | 12 ++-
 .../dts/marvell/armada-8040-clearfog-gt-8k.dts     |  5 +-
 arch/arm64/kernel/debug-monitors.c                 |  4 +-
 arch/arm64/kernel/vdso32/Makefile                  |  2 +-
 arch/mips/pci/pci-xtalk-bridge.c                   |  5 +-
 arch/parisc/include/asm/atomic.h                   |  2 +
 arch/riscv/include/asm/barrier.h                   | 10 ++-
 arch/riscv/mm/init.c                               | 33 ++++++--
 arch/s390/kernel/perf_cpum_cf_events.c             |  4 +-
 arch/x86/boot/compressed/Makefile                  |  4 +-
 arch/x86/kernel/apic/io_apic.c                     | 10 +--
 arch/x86/kernel/apic/msi.c                         | 18 +++--
 arch/x86/kernel/apic/vector.c                      |  1 -
 arch/x86/kernel/vmlinux.lds.S                      |  1 +
 arch/x86/math-emu/wm_sqrt.S                        |  2 +-
 arch/x86/platform/uv/uv_irq.c                      |  3 +-
 arch/xtensa/kernel/setup.c                         |  3 +-
 arch/xtensa/kernel/xtensa_ksyms.c                  |  4 +-
 drivers/android/binder_alloc.c                     |  2 +-
 drivers/base/regmap/regmap.c                       |  2 +-
 drivers/char/mem.c                                 | 10 ++-
 drivers/crypto/chelsio/chtls/chtls_io.c            |  7 +-
 drivers/dma/fsl-edma-common.c                      | 26 ++++---
 drivers/dma/ioat/dma.c                             | 12 +++
 drivers/dma/ioat/dma.h                             |  2 -
 drivers/dma/tegra210-adma.c                        |  5 +-
 drivers/dma/ti/k3-udma-private.c                   |  1 +
 drivers/dma/ti/k3-udma.c                           | 33 ++++----
 drivers/firmware/efi/efi-pstore.c                  |  5 +-
 drivers/firmware/efi/efi.c                         | 12 ++-
 drivers/firmware/efi/efivars.c                     |  5 +-
 drivers/firmware/efi/vars.c                        |  6 ++
 drivers/firmware/psci/psci_checker.c               |  5 +-
 drivers/fpga/dfl-afu-main.c                        |  3 +-
 drivers/fpga/dfl-pci.c                             |  3 +-
 drivers/gpio/gpio-arizona.c                        |  7 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c        | 20 +++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c             |  9 +--
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c             |  9 ++-
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c  |  7 +-
 .../gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c    | 10 ++-
 drivers/gpu/drm/nouveau/nouveau_svm.c              |  1 +
 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c   |  4 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c |  4 +-
 drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c             |  2 +-
 drivers/hid/hid-alps.c                             |  2 +
 drivers/hid/hid-apple.c                            | 18 +++++
 drivers/hid/hid-steam.c                            |  6 +-
 drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c           |  8 ++
 drivers/hwmon/aspeed-pwm-tacho.c                   |  2 +
 drivers/hwmon/nct6775.c                            |  6 +-
 drivers/hwmon/pmbus/adm1275.c                      | 10 ++-
 drivers/hwmon/scmi-hwmon.c                         |  2 +-
 drivers/i2c/busses/i2c-qcom-geni.c                 |  6 +-
 drivers/i2c/busses/i2c-rcar.c                      |  3 +
 drivers/infiniband/core/cm.c                       |  2 +
 drivers/infiniband/core/rdma_core.c                |  6 +-
 drivers/infiniband/hw/mlx5/odp.c                   | 22 +++++-
 drivers/infiniband/hw/mlx5/srq_cmd.c               |  4 +-
 drivers/input/mouse/elan_i2c_core.c                |  9 ++-
 drivers/input/mouse/synaptics.c                    |  1 +
 drivers/interconnect/qcom/msm8916.c                | 14 ++--
 drivers/iommu/amd_iommu.c                          |  5 +-
 drivers/iommu/hyperv-iommu.c                       |  5 +-
 drivers/iommu/intel_irq_remapping.c                |  2 +-
 drivers/iommu/qcom_iommu.c                         | 37 +++++----
 drivers/md/dm-integrity.c                          |  4 +-
 drivers/md/dm-mpath.c                              |  9 ++-
 drivers/md/dm-path-selector.h                      |  2 +-
 drivers/md/dm-queue-length.c                       |  2 +-
 drivers/md/dm-rq.c                                 |  4 -
 drivers/md/dm-service-time.c                       |  2 +-
 drivers/md/dm.c                                    | 87 ++++++++++++++++------
 drivers/mfd/ioc3.c                                 |  5 +-
 drivers/mmc/host/sdhci-of-aspeed.c                 |  2 +-
 drivers/net/bonding/bond_main.c                    | 10 ++-
 drivers/net/bonding/bond_netlink.c                 |  3 +-
 drivers/net/dsa/microchip/ksz9477.c                | 42 ++++++-----
 drivers/net/dsa/microchip/ksz_common.c             |  2 -
 drivers/net/dsa/microchip/ksz_common.h             |  2 -
 drivers/net/dsa/mv88e6xxx/chip.c                   | 22 +++++-
 drivers/net/dsa/mv88e6xxx/chip.h                   |  1 +
 drivers/net/ethernet/atheros/ag71xx.c              |  3 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt.c          | 22 ++++--
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c  |  5 +-
 drivers/net/ethernet/broadcom/genet/bcmgenet.c     |  2 +-
 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c     |  2 +-
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c   |  2 +-
 drivers/net/ethernet/freescale/enetc/enetc_pf.c    |  1 +
 drivers/net/ethernet/freescale/fec.h               |  1 +
 drivers/net/ethernet/freescale/fec_main.c          | 23 ++++--
 drivers/net/ethernet/freescale/fec_ptp.c           | 12 +++
 drivers/net/ethernet/hisilicon/hns3/hnae3.h        |  1 +
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    | 10 ++-
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h    |  2 -
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c    | 49 ++++++------
 .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h    |  3 +
 drivers/net/ethernet/marvell/sky2.c                |  2 +-
 drivers/net/ethernet/mellanox/mlxsw/core.c         |  3 +-
 drivers/net/ethernet/mellanox/mlxsw/core_env.c     | 48 ++++++++----
 .../net/ethernet/pensando/ionic/ionic_ethtool.c    |  7 +-
 drivers/net/ethernet/pensando/ionic/ionic_lif.c    | 50 ++++++-------
 drivers/net/ethernet/pensando/ionic/ionic_lif.h    |  8 +-
 .../net/ethernet/pensando/ionic/ionic_rx_filter.c  | 29 ++++++++
 drivers/net/ethernet/pensando/ionic/ionic_txrx.c   |  6 --
 drivers/net/ethernet/qlogic/qed/qed_cxt.c          |  4 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c          |  2 +-
 drivers/net/ethernet/qlogic/qed/qed_int.c          | 50 +++++++------
 drivers/net/ethernet/qlogic/qed/qed_int.h          |  4 +-
 drivers/net/ethernet/smsc/smc91x.c                 |  4 +-
 drivers/net/ethernet/socionext/sni_ave.c           |  2 +-
 drivers/net/geneve.c                               |  2 +-
 drivers/net/hippi/rrunner.c                        |  2 +-
 drivers/net/ieee802154/adf7242.c                   |  4 +-
 drivers/net/netdevsim/netdev.c                     |  4 +-
 drivers/net/phy/dp83640.c                          |  4 +
 drivers/net/usb/ax88172a.c                         |  1 +
 drivers/net/wan/lapbether.c                        |  9 ++-
 drivers/net/wireless/ath/ath9k/hif_usb.c           | 52 ++++++++++---
 drivers/net/wireless/ath/ath9k/hif_usb.h           |  5 ++
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c       |  8 +-
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c      |  2 +
 drivers/net/wireless/mediatek/mt76/mt76.h          |  1 +
 drivers/net/wireless/mediatek/mt76/mt76x0/pci.c    |  2 +
 drivers/net/wireless/mediatek/mt76/mt76x02.h       |  2 +
 drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c   |  3 +
 drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c  | 16 ++++
 .../net/wireless/mediatek/mt76/mt76x2/pci_init.c   |  1 +
 .../net/wireless/mediatek/mt76/mt76x2/pci_main.c   | 19 ++---
 drivers/pci/controller/vmd.c                       |  5 +-
 drivers/pci/pci.c                                  | 30 +++-----
 drivers/perf/arm-cci.c                             |  1 +
 drivers/perf/arm-ccn.c                             |  1 +
 drivers/perf/arm_dsu_pmu.c                         |  1 +
 drivers/perf/arm_smmuv3_pmu.c                      |  2 +
 drivers/perf/arm_spe_pmu.c                         |  1 +
 drivers/perf/fsl_imx8_ddr_perf.c                   |  2 +
 drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c      |  2 +
 drivers/perf/hisilicon/hisi_uncore_hha_pmu.c       |  2 +
 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c       |  2 +
 drivers/perf/qcom_l2_pmu.c                         |  1 +
 drivers/perf/qcom_l3_pmu.c                         |  1 +
 drivers/perf/thunderx2_pmu.c                       |  1 +
 drivers/perf/xgene_pmu.c                           |  1 +
 drivers/pinctrl/pinctrl-amd.h                      |  2 +-
 drivers/platform/x86/asus-wmi.c                    |  1 +
 .../x86/intel_speed_select_if/isst_if_common.h     |  3 +
 .../x86/intel_speed_select_if/isst_if_mbox_pci.c   |  1 +
 .../x86/intel_speed_select_if/isst_if_mmio.c       |  1 +
 drivers/scsi/mpt3sas/mpt3sas_ctl.c                 | 12 +--
 drivers/scsi/scsi_devinfo.c                        |  1 +
 drivers/scsi/scsi_dh.c                             |  1 +
 drivers/scsi/scsi_transport_spi.c                  |  2 +-
 drivers/soc/amlogic/meson-gx-socinfo.c             |  8 +-
 drivers/soc/qcom/rpmh.c                            |  8 +-
 drivers/spi/spi-mt65xx.c                           | 15 ++--
 drivers/staging/comedi/drivers/addi_apci_1032.c    | 20 +++--
 drivers/staging/comedi/drivers/addi_apci_1500.c    | 24 ++++--
 drivers/staging/comedi/drivers/addi_apci_1564.c    | 20 +++--
 drivers/staging/comedi/drivers/ni_6527.c           |  2 +-
 drivers/staging/wlan-ng/prism2usb.c                | 16 +++-
 drivers/tty/serial/8250/8250_core.c                |  2 +-
 drivers/tty/serial/8250/8250_exar.c                | 12 ++-
 drivers/tty/serial/8250/8250_mtk.c                 | 18 +++++
 drivers/tty/serial/serial-tegra.c                  |  7 +-
 drivers/tty/serial/xilinx_uartps.c                 |  8 +-
 drivers/tty/vt/vt.c                                | 29 +++++---
 drivers/usb/cdns3/ep0.c                            | 30 ++++----
 drivers/usb/cdns3/trace.h                          |  6 +-
 drivers/usb/dwc3/dwc3-pci.c                        |  8 ++
 drivers/usb/gadget/udc/gr_udc.c                    |  7 +-
 drivers/usb/host/xhci-mtk-sch.c                    |  4 +
 drivers/usb/host/xhci-pci.c                        |  3 +
 drivers/usb/host/xhci-tegra.c                      |  2 +-
 drivers/video/fbdev/core/bitblit.c                 |  4 +-
 drivers/video/fbdev/core/fbcon_ccw.c               |  4 +-
 drivers/video/fbdev/core/fbcon_cw.c                |  4 +-
 drivers/video/fbdev/core/fbcon_ud.c                |  4 +-
 fs/btrfs/backref.c                                 |  1 +
 fs/btrfs/disk-io.c                                 |  1 +
 fs/btrfs/extent_io.c                               |  3 +-
 fs/btrfs/relocation.c                              |  2 +
 fs/btrfs/volumes.c                                 |  8 ++
 fs/cifs/inode.c                                    | 10 +--
 fs/efivarfs/super.c                                |  6 +-
 fs/exfat/dir.c                                     |  2 +-
 fs/exfat/exfat_fs.h                                |  2 +-
 fs/exfat/file.c                                    |  2 +-
 fs/exfat/nls.c                                     |  8 +-
 fs/fuse/dev.c                                      |  3 +-
 fs/nfs/direct.c                                    | 13 +---
 fs/nfs/file.c                                      |  1 -
 fs/nfsd/nfs4state.c                                | 20 ++++-
 include/asm-generic/mmiowb.h                       |  6 +-
 include/asm-generic/vmlinux.lds.h                  |  5 +-
 include/linux/device-mapper.h                      |  3 +
 include/linux/efi.h                                |  1 +
 include/linux/io-mapping.h                         |  5 +-
 include/linux/mod_devicetable.h                    |  2 +-
 include/linux/xattr.h                              |  3 +-
 include/sound/rt5670.h                             |  1 +
 include/uapi/linux/idxd.h                          |  3 +
 include/uapi/linux/input-event-codes.h             |  3 +-
 kernel/bpf/verifier.c                              | 10 ++-
 kernel/events/uprobes.c                            |  2 +-
 mm/hugetlb.c                                       | 15 ++--
 mm/khugepaged.c                                    |  3 +
 mm/memcontrol.c                                    |  4 +-
 mm/mmap.c                                          | 16 +++-
 mm/shmem.c                                         |  2 +-
 mm/slab_common.c                                   | 35 +++++++--
 net/mac80211/rx.c                                  | 26 +++++++
 net/netfilter/ipvs/ip_vs_sync.c                    | 12 ++-
 net/netfilter/nf_tables_api.c                      | 41 ++++------
 net/vmw_vsock/virtio_transport.c                   |  2 +-
 scripts/decode_stacktrace.sh                       |  4 +-
 scripts/gdb/linux/symbols.py                       |  2 +-
 sound/core/info.c                                  |  4 +-
 sound/pci/hda/patch_hdmi.c                         | 36 +++++----
 sound/pci/hda/patch_realtek.c                      |  2 +
 sound/soc/codecs/rt5670.c                          | 71 ++++++++++++++----
 sound/soc/codecs/rt5670.h                          |  2 +-
 sound/soc/intel/boards/bdw-rt5677.c                |  1 +
 sound/soc/intel/boards/bytcht_es8316.c             |  4 +-
 sound/soc/intel/boards/cht_bsw_rt5672.c            | 23 +++---
 sound/soc/qcom/Kconfig                             |  2 +-
 sound/soc/soc-topology.c                           | 24 ++++--
 .../perf/pmu-events/arch/s390/cf_z15/extended.json |  2 +-
 229 files changed, 1339 insertions(+), 668 deletions(-)

[PATCH 5.7 001/179] soc: qcom: rpmh: Dirt can only make you dirtier, not cleaner

[Greg Kroah-Hartman]

From: Douglas Anderson <dianders@chromium.org>

commit 35bb4b22f606c0cc8eedf567313adc18161b1af4 upstream.

Adding an item into the cache should never be able to make the cache
cleaner.  Use "|=" rather than "=" to update the dirty flag.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Maulik Shah <mkshah@codeaurora.org> Thanks, Maulik
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fixes: bb7000677a1b ("soc: qcom: rpmh: Update dirty flag only when data changes")
Reported-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200417141531.1.Ia4b74158497213eabad7c3d474c50bfccb3f342e@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/soc/qcom/rpmh.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/soc/qcom/rpmh.c
+++ b/drivers/soc/qcom/rpmh.c
@@ -150,10 +150,10 @@ existing:
 		break;
 	}
 
-	ctrlr->dirty = (req->sleep_val != old_sleep_val ||
-			req->wake_val != old_wake_val) &&
-			req->sleep_val != UINT_MAX &&
-			req->wake_val != UINT_MAX;
+	ctrlr->dirty |= (req->sleep_val != old_sleep_val ||
+			 req->wake_val != old_wake_val) &&
+			 req->sleep_val != UINT_MAX &&
+			 req->wake_val != UINT_MAX;
 
 unlock:
 	spin_unlock_irqrestore(&ctrlr->cache_lock, flags);

[PATCH 5.7 002/179] gpio: arizona: handle pm_runtime_get_sync failure case

[Greg Kroah-Hartman]

From: Navid Emamdoost <navid.emamdoost@gmail.com>

[ Upstream commit e6f390a834b56583e6fc0949822644ce92fbb107 ]

Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count. Call pm_runtime_put if
pm_runtime_get_sync fails.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200605025207.65719-1-navid.emamdoost@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-arizona.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index 5640efe5e7504..7520a13b4c7ca 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -106,6 +106,7 @@ static int arizona_gpio_direction_out(struct gpio_chip *chip,
 		ret = pm_runtime_get_sync(chip->parent);
 		if (ret < 0) {
 			dev_err(chip->parent, "Failed to resume: %d\n", ret);
+			pm_runtime_put(chip->parent);
 			return ret;
 		}
 	}
-- 
2.25.1

[PATCH 5.7 003/179] gpio: arizona: put pm_runtime in case of failure

[Greg Kroah-Hartman]

From: Navid Emamdoost <navid.emamdoost@gmail.com>

[ Upstream commit 861254d826499944cb4d9b5a15f5a794a6b99a69 ]

Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count if pm_runtime_put is not called in
error handling paths. Call pm_runtime_put if pm_runtime_get_sync fails.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200605030052.78235-1-navid.emamdoost@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-arizona.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index 7520a13b4c7ca..5bda38e0780f2 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -64,6 +64,7 @@ static int arizona_gpio_get(struct gpio_chip *chip, unsigned offset)
 		ret = pm_runtime_get_sync(chip->parent);
 		if (ret < 0) {
 			dev_err(chip->parent, "Failed to resume: %d\n", ret);
+			pm_runtime_put_autosuspend(chip->parent);
 			return ret;
 		}
 
@@ -72,12 +73,15 @@ static int arizona_gpio_get(struct gpio_chip *chip, unsigned offset)
 		if (ret < 0) {
 			dev_err(chip->parent, "Failed to drop cache: %d\n",
 				ret);
+			pm_runtime_put_autosuspend(chip->parent);
 			return ret;
 		}
 
 		ret = regmap_read(arizona->regmap, reg, &val);
-		if (ret < 0)
+		if (ret < 0) {
+			pm_runtime_put_autosuspend(chip->parent);
 			return ret;
+		}
 
 		pm_runtime_mark_last_busy(chip->parent);
 		pm_runtime_put_autosuspend(chip->parent);
-- 
2.25.1

[PATCH 5.7 004/179] pinctrl: amd: fix npins for uart0 in kerncz_groups

[Greg Kroah-Hartman]

From: Jacky Hu <hengqing.hu@gmail.com>

[ Upstream commit 69339d083dfb7786b0e0b3fc19eaddcf11fabdfb ]

uart0_pins is defined as:
static const unsigned uart0_pins[] = {135, 136, 137, 138, 139};

which npins is wronly specified as 9 later
	{
		.name = "uart0",
		.pins = uart0_pins,
		.npins = 9,
	},

npins should be 5 instead of 9 according to the definition.

Signed-off-by: Jacky Hu <hengqing.hu@gmail.com>
Link: https://lore.kernel.org/r/20200616015024.287683-1-hengqing.hu@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-amd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-amd.h b/drivers/pinctrl/pinctrl-amd.h
index 3e5760f1a7153..d4a192df5fabd 100644
--- a/drivers/pinctrl/pinctrl-amd.h
+++ b/drivers/pinctrl/pinctrl-amd.h
@@ -252,7 +252,7 @@ static const struct amd_pingroup kerncz_groups[] = {
 	{
 		.name = "uart0",
 		.pins = uart0_pins,
-		.npins = 9,
+		.npins = 5,
 	},
 	{
 		.name = "uart1",
-- 
2.25.1

[PATCH 5.7 005/179] bpf: Set the number of exception entries properly for subprograms

[Greg Kroah-Hartman]

From: Yonghong Song <yhs@fb.com>

[ Upstream commit c4c0bdc0d2d084ed847c7066bdf59fe2cd25aa17 ]

Currently, if a bpf program has more than one subprograms, each program will be
jitted separately. For programs with bpf-to-bpf calls the
prog->aux->num_exentries is not setup properly. For example, with
bpf_iter_netlink.c modified to force one function to be not inlined and with
CONFIG_BPF_JIT_ALWAYS_ON the following error is seen:
   $ ./test_progs -n 3/3
   ...
   libbpf: failed to load program 'iter/netlink'
   libbpf: failed to load object 'bpf_iter_netlink'
   libbpf: failed to load BPF skeleton 'bpf_iter_netlink': -4007
   test_netlink:FAIL:bpf_iter_netlink__open_and_load skeleton open_and_load failed
   #3/3 netlink:FAIL
The dmesg shows the following errors:
   ex gen bug
which is triggered by the following code in arch/x86/net/bpf_jit_comp.c:
   if (excnt >= bpf_prog->aux->num_exentries) {
     pr_err("ex gen bug\n");
     return -EFAULT;
   }

This patch fixes the issue by computing proper num_exentries for each
subprogram before calling JIT.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/verifier.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 739d9ba3ba6b7..eebdd5307713b 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -9613,7 +9613,7 @@ static int jit_subprogs(struct bpf_verifier_env *env)
 	int i, j, subprog_start, subprog_end = 0, len, subprog;
 	struct bpf_insn *insn;
 	void *old_bpf_func;
-	int err;
+	int err, num_exentries;
 
 	if (env->subprog_cnt <= 1)
 		return 0;
@@ -9688,6 +9688,14 @@ static int jit_subprogs(struct bpf_verifier_env *env)
 		func[i]->aux->nr_linfo = prog->aux->nr_linfo;
 		func[i]->aux->jited_linfo = prog->aux->jited_linfo;
 		func[i]->aux->linfo_idx = env->subprog_info[i].linfo_idx;
+		num_exentries = 0;
+		insn = func[i]->insnsi;
+		for (j = 0; j < func[i]->len; j++, insn++) {
+			if (BPF_CLASS(insn->code) == BPF_LDX &&
+			    BPF_MODE(insn->code) == BPF_PROBE_MEM)
+				num_exentries++;
+		}
+		func[i]->aux->num_exentries = num_exentries;
 		func[i] = bpf_int_jit_compile(func[i]);
 		if (!func[i]->jited) {
 			err = -ENOTSUPP;
-- 
2.25.1

[PATCH 5.7 006/179] mac80211: allow rx of mesh eapol frames with default rx key

[Greg Kroah-Hartman]

From: Markus Theil <markus.theil@tu-ilmenau.de>

[ Upstream commit 0b467b63870d9c05c81456aa9bfee894ab2db3b6 ]

Without this patch, eapol frames cannot be received in mesh
mode, when 802.1X should be used. Initially only a MGTK is
defined, which is found and set as rx->key, when there are
no other keys set. ieee80211_drop_unencrypted would then
drop these eapol frames, as they are data frames without
encryption and there exists some rx->key.

Fix this by differentiating between mesh eapol frames and
other data frames with existing rx->key. Allow mesh mesh
eapol frames only if they are for our vif address.

With this patch in-place, ieee80211_rx_h_mesh_fwding continues
after the ieee80211_drop_unencrypted check and notices, that
these eapol frames have to be delivered locally, as they should.

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200625104214.50319-1-markus.theil@tu-ilmenau.de
[small code cleanups]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rx.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 91a13aee43784..961f37c0701bc 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2357,6 +2357,7 @@ static int ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
 
 static int ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
 {
+	struct ieee80211_hdr *hdr = (void *)rx->skb->data;
 	struct sk_buff *skb = rx->skb;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
 
@@ -2367,6 +2368,31 @@ static int ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
 	if (status->flag & RX_FLAG_DECRYPTED)
 		return 0;
 
+	/* check mesh EAPOL frames first */
+	if (unlikely(rx->sta && ieee80211_vif_is_mesh(&rx->sdata->vif) &&
+		     ieee80211_is_data(fc))) {
+		struct ieee80211s_hdr *mesh_hdr;
+		u16 hdr_len = ieee80211_hdrlen(fc);
+		u16 ethertype_offset;
+		__be16 ethertype;
+
+		if (!ether_addr_equal(hdr->addr1, rx->sdata->vif.addr))
+			goto drop_check;
+
+		/* make sure fixed part of mesh header is there, also checks skb len */
+		if (!pskb_may_pull(rx->skb, hdr_len + 6))
+			goto drop_check;
+
+		mesh_hdr = (struct ieee80211s_hdr *)(skb->data + hdr_len);
+		ethertype_offset = hdr_len + ieee80211_get_mesh_hdrlen(mesh_hdr) +
+				   sizeof(rfc1042_header);
+
+		if (skb_copy_bits(rx->skb, ethertype_offset, &ethertype, 2) == 0 &&
+		    ethertype == rx->sdata->control_port_protocol)
+			return 0;
+	}
+
+drop_check:
 	/* Drop unencrypted frames if key is set. */
 	if (unlikely(!ieee80211_has_protected(fc) &&
 		     !ieee80211_is_any_nullfunc(fc) &&
-- 
2.25.1

[PATCH 5.7 007/179] scsi: scsi_transport_spi: Fix function pointer check

[Greg Kroah-Hartman]

From: Tom Rix <trix@redhat.com>

[ Upstream commit 5aee52c44d9170591df65fafa1cd408acc1225ce ]

clang static analysis flags several null function pointer problems.

drivers/scsi/scsi_transport_spi.c:374:1: warning: Called function pointer is null (null dereference) [core.CallAndMessage]
spi_transport_max_attr(offset, "%d\n");
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reviewing the store_spi_store_max macro

	if (i->f->set_##field)
		return -EINVAL;

should be

	if (!i->f->set_##field)
		return -EINVAL;

Link: https://lore.kernel.org/r/20200627133242.21618-1-trix@redhat.com
Reviewed-by: James Bottomley <jejb@linux.ibm.com>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_transport_spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index f8661062ef954..f3d5b1bbd5aa7 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -339,7 +339,7 @@ store_spi_transport_##field(struct device *dev, 			\
 	struct spi_transport_attrs *tp					\
 		= (struct spi_transport_attrs *)&starget->starget_data;	\
 									\
-	if (i->f->set_##field)						\
+	if (!i->f->set_##field)						\
 		return -EINVAL;						\
 	val = simple_strtoul(buf, NULL, 0);				\
 	if (val > tp->max_##field)					\
-- 
2.25.1

[PATCH 5.7 008/179] xtensa: fix __sync_fetch_and_{and,or}_4 declarations

[Greg Kroah-Hartman]

From: Max Filippov <jcmvbkbc@gmail.com>

[ Upstream commit 73f9941306d5ce030f3ffc7db425c7b2a798cf8e ]

Building xtensa kernel with gcc-10 produces the following warnings:
  arch/xtensa/kernel/xtensa_ksyms.c:90:15: warning: conflicting types
    for built-in function ‘__sync_fetch_and_and_4’;
    expected ‘unsigned int(volatile void *, unsigned int)’
    [-Wbuiltin-declaration-mismatch]
  arch/xtensa/kernel/xtensa_ksyms.c:96:15: warning: conflicting types
    for built-in function ‘__sync_fetch_and_or_4’;
    expected ‘unsigned int(volatile void *, unsigned int)’
    [-Wbuiltin-declaration-mismatch]

Fix declarations of these functions to avoid the warning.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/kernel/xtensa_ksyms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c
index 4092555828b13..24cf6972eacea 100644
--- a/arch/xtensa/kernel/xtensa_ksyms.c
+++ b/arch/xtensa/kernel/xtensa_ksyms.c
@@ -87,13 +87,13 @@ void __xtensa_libgcc_window_spill(void)
 }
 EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
 
-unsigned long __sync_fetch_and_and_4(unsigned long *p, unsigned long v)
+unsigned int __sync_fetch_and_and_4(volatile void *p, unsigned int v)
 {
 	BUG();
 }
 EXPORT_SYMBOL(__sync_fetch_and_and_4);
 
-unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
+unsigned int __sync_fetch_and_or_4(volatile void *p, unsigned int v)
 {
 	BUG();
 }
-- 
2.25.1

[PATCH 5.7 009/179] xtensa: update *pos in cpuinfo_op.next

[Greg Kroah-Hartman]

From: Max Filippov <jcmvbkbc@gmail.com>

[ Upstream commit 0d5ab144429e8bd80889b856a44d56ab4a5cd59b ]

Increment *pos in the cpuinfo_op.next to fix the following warning
triggered by cat /proc/cpuinfo:

  seq_file: buggy .next function c_next did not update position index

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/kernel/setup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 3880c765d4489..0271e2e47bcdf 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -725,7 +725,8 @@ c_start(struct seq_file *f, loff_t *pos)
 static void *
 c_next(struct seq_file *f, void *v, loff_t *pos)
 {
-	return NULL;
+	++*pos;
+	return c_start(f, pos);
 }
 
 static void
-- 
2.25.1

[PATCH 5.7 010/179] scsi: mpt3sas: Fix unlock imbalance

[Greg Kroah-Hartman]

From: Damien Le Moal <damien.lemoal@wdc.com>

[ Upstream commit cb551b8dc079d2ef189145782627c99cb68c0255 ]

In BRM_status_show(), if the condition "!ioc->is_warpdrive" tested on entry
to the function is true, a "goto out" is called. This results in unlocking
ioc->pci_access_mutex without this mutex lock being taken.  This generates
the following splat:

[ 1148.539883] mpt3sas_cm2: BRM_status_show: BRM attribute is only for warpdrive
[ 1148.547184]
[ 1148.548708] =====================================
[ 1148.553501] WARNING: bad unlock balance detected!
[ 1148.558277] 5.8.0-rc3+ #827 Not tainted
[ 1148.562183] -------------------------------------
[ 1148.566959] cat/5008 is trying to release lock (&ioc->pci_access_mutex) at:
[ 1148.574035] [<ffffffffc070b7a3>] BRM_status_show+0xd3/0x100 [mpt3sas]
[ 1148.580574] but there are no more locks to release!
[ 1148.585524]
[ 1148.585524] other info that might help us debug this:
[ 1148.599624] 3 locks held by cat/5008:
[ 1148.607085]  #0: ffff92aea3e392c0 (&p->lock){+.+.}-{3:3}, at: seq_read+0x34/0x480
[ 1148.618509]  #1: ffff922ef14c4888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x2a/0xb0
[ 1148.630729]  #2: ffff92aedb5d7310 (kn->active#224){.+.+}-{0:0}, at: kernfs_seq_start+0x32/0xb0
[ 1148.643347]
[ 1148.643347] stack backtrace:
[ 1148.655259] CPU: 73 PID: 5008 Comm: cat Not tainted 5.8.0-rc3+ #827
[ 1148.665309] Hardware name: HGST H4060-S/S2600STB, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019
[ 1148.678394] Call Trace:
[ 1148.684750]  dump_stack+0x78/0xa0
[ 1148.691802]  lock_release.cold+0x45/0x4a
[ 1148.699451]  __mutex_unlock_slowpath+0x35/0x270
[ 1148.707675]  BRM_status_show+0xd3/0x100 [mpt3sas]
[ 1148.716092]  dev_attr_show+0x19/0x40
[ 1148.723664]  sysfs_kf_seq_show+0x87/0x100
[ 1148.731193]  seq_read+0xbc/0x480
[ 1148.737882]  vfs_read+0xa0/0x160
[ 1148.744514]  ksys_read+0x58/0xd0
[ 1148.751129]  do_syscall_64+0x4c/0xa0
[ 1148.757941]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1148.766240] RIP: 0033:0x7f1230566542
[ 1148.772957] Code: Bad RIP value.
[ 1148.779206] RSP: 002b:00007ffeac1bcac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 1148.790063] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f1230566542
[ 1148.800284] RDX: 0000000000020000 RSI: 00007f1223460000 RDI: 0000000000000003
[ 1148.810474] RBP: 00007f1223460000 R08: 00007f122345f010 R09: 0000000000000000
[ 1148.820641] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000
[ 1148.830728] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000

Fix this by returning immediately instead of jumping to the out label.

Link: https://lore.kernel.org/r/20200701085254.51740-1-damien.lemoal@wdc.com
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_ctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 62e552838565f..e94e72de2fc68 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -3145,7 +3145,7 @@ BRM_status_show(struct device *cdev, struct device_attribute *attr,
 	if (!ioc->is_warpdrive) {
 		ioc_err(ioc, "%s: BRM attribute is only for warpdrive\n",
 			__func__);
-		goto out;
+		return 0;
 	}
 	/* pci_access_mutex lock acquired by sysfs show path */
 	mutex_lock(&ioc->pci_access_mutex);
-- 
2.25.1

[PATCH 5.7 011/179] drivers/net/wan/lapbether: Fixed the value of hard_header_len

[Greg Kroah-Hartman]

From: Xie He <xie.he.0141@gmail.com>

[ Upstream commit 9dc829a135fb5927f1519de11286e2bbb79f5b66 ]

When this driver transmits data,
  first this driver will remove a pseudo header of 1 byte,
  then the lapb module will prepend the LAPB header of 2 or 3 bytes,
  then this driver will prepend a length field of 2 bytes,
  then the underlying Ethernet device will prepend its own header.

So, the header length required should be:
  -1 + 3 + 2 + "the header length needed by the underlying device".

This patch fixes kernel panic when this driver is used with AF_PACKET
SOCK_DGRAM sockets.

Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wan/lapbether.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index e30d91a38cfb6..284832314f310 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -303,7 +303,6 @@ static void lapbeth_setup(struct net_device *dev)
 	dev->netdev_ops	     = &lapbeth_netdev_ops;
 	dev->needs_free_netdev = true;
 	dev->type            = ARPHRD_X25;
-	dev->hard_header_len = 3;
 	dev->mtu             = 1000;
 	dev->addr_len        = 0;
 }
@@ -324,6 +323,14 @@ static int lapbeth_new_device(struct net_device *dev)
 	if (!ndev)
 		goto out;
 
+	/* When transmitting data:
+	 * first this driver removes a pseudo header of 1 byte,
+	 * then the lapb module prepends an LAPB header of at most 3 bytes,
+	 * then this driver prepends a length field of 2 bytes,
+	 * then the underlying Ethernet device prepends its own header.
+	 */
+	ndev->hard_header_len = -1 + 3 + 2 + dev->hard_header_len;
+
 	lapbeth = netdev_priv(ndev);
 	lapbeth->axdev = ndev;
 
-- 
2.25.1

[PATCH 5.7 012/179] ALSA: hda/hdmi: fix failures at PCM open on Intel ICL and later

[Greg Kroah-Hartman]

From: Kai Vehmanen <kai.vehmanen@linux.intel.com>

[ Upstream commit 56275036d8185f92eceac7479d48b858ee3dab84 ]

When HDMI PCM devices are opened in a specific order, with at least one
HDMI/DP receiver connected, ALSA PCM open fails to -EBUSY on the
connected monitor, on recent Intel platforms (ICL/JSL and newer). While
this is not a typical sequence, at least Pulseaudio does this every time
when it is started, to discover the available PCMs.

The rootcause is an invalid assumption in hdmi_add_pin(), where the
total number of converters is assumed to be known at the time the
function is called. On older Intel platforms this held true, but after
ICL/JSL, the order how pins and converters are in the subnode list as
returned by snd_hda_get_sub_nodes(), was changed. As a result,
information for some converters was not stored to per_pin->mux_nids.
And this means some pins cannot be connected to all converters, and
application instead gets -EBUSY instead at open.

The assumption that converters are always before pins in the subnode
list, is not really a valid one. Fix the problem in hdmi_parse_codec()
by introducing separate loops for discovering converters and pins.

BugLink: https://github.com/thesofproject/linux/issues/1978
BugLink: https://github.com/thesofproject/linux/issues/2216
BugLink: https://github.com/thesofproject/linux/issues/2217
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200703153818.2808592-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_hdmi.c | 36 +++++++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 137d655fed8f8..e821c9df81070 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1804,33 +1804,43 @@ static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
 
 static int hdmi_parse_codec(struct hda_codec *codec)
 {
-	hda_nid_t nid;
+	hda_nid_t start_nid;
+	unsigned int caps;
 	int i, nodes;
 
-	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &nid);
-	if (!nid || nodes < 0) {
+	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &start_nid);
+	if (!start_nid || nodes < 0) {
 		codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
 		return -EINVAL;
 	}
 
-	for (i = 0; i < nodes; i++, nid++) {
-		unsigned int caps;
-		unsigned int type;
+	/*
+	 * hdmi_add_pin() assumes total amount of converters to
+	 * be known, so first discover all converters
+	 */
+	for (i = 0; i < nodes; i++) {
+		hda_nid_t nid = start_nid + i;
 
 		caps = get_wcaps(codec, nid);
-		type = get_wcaps_type(caps);
 
 		if (!(caps & AC_WCAP_DIGITAL))
 			continue;
 
-		switch (type) {
-		case AC_WID_AUD_OUT:
+		if (get_wcaps_type(caps) == AC_WID_AUD_OUT)
 			hdmi_add_cvt(codec, nid);
-			break;
-		case AC_WID_PIN:
+	}
+
+	/* discover audio pins */
+	for (i = 0; i < nodes; i++) {
+		hda_nid_t nid = start_nid + i;
+
+		caps = get_wcaps(codec, nid);
+
+		if (!(caps & AC_WCAP_DIGITAL))
+			continue;
+
+		if (get_wcaps_type(caps) == AC_WID_PIN)
 			hdmi_add_pin(codec, nid);
-			break;
-		}
 	}
 
 	return 0;
-- 
2.25.1

[PATCH 5.7 013/179] net: sky2: initialize return of gm_phy_read

[Greg Kroah-Hartman]

From: Tom Rix <trix@redhat.com>

[ Upstream commit 28b18e4eb515af7c6661c3995c6e3c34412c2874 ]

clang static analysis flags this garbage return

drivers/net/ethernet/marvell/sky2.c:208:2: warning: Undefined or garbage value returned to caller [core.uninitialized.UndefReturn]
        return v;
        ^~~~~~~~

static inline u16 gm_phy_read( ...
{
	u16 v;
	__gm_phy_read(hw, port, reg, &v);
	return v;
}

__gm_phy_read can return without setting v.

So handle similar to skge.c's gm_phy_read, initialize v.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/marvell/sky2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 241f007169797..fe54764caea9c 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -203,7 +203,7 @@ io_error:
 
 static inline u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
 {
-	u16 v;
+	u16 v = 0;
 	__gm_phy_read(hw, port, reg, &v);
 	return v;
 }
-- 
2.25.1

[PATCH 5.7 014/179] drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout

[Greg Kroah-Hartman]

From: Ben Skeggs <bskeggs@redhat.com>

[ Upstream commit 0156e76d388310a490aeb0f2fbb5b284ded3aecc ]

Tegra TRM says worst-case reply time is 1216us, and this should fix some
spurious timeouts that have been popping up.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c   | 4 ++--
 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
index c8ab1b5741a3e..db7769cb33eba 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
@@ -118,10 +118,10 @@ g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
 		if (retries)
 			udelay(400);
 
-		/* transaction request, wait up to 1ms for it to complete */
+		/* transaction request, wait up to 2ms for it to complete */
 		nvkm_wr32(device, 0x00e4e4 + base, 0x00010000 | ctrl);
 
-		timeout = 1000;
+		timeout = 2000;
 		do {
 			ctrl = nvkm_rd32(device, 0x00e4e4 + base);
 			udelay(1);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
index 7ef60895f43a7..edb6148cbca04 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
@@ -118,10 +118,10 @@ gm200_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
 		if (retries)
 			udelay(400);
 
-		/* transaction request, wait up to 1ms for it to complete */
+		/* transaction request, wait up to 2ms for it to complete */
 		nvkm_wr32(device, 0x00d954 + base, 0x00010000 | ctrl);
 
-		timeout = 1000;
+		timeout = 2000;
 		do {
 			ctrl = nvkm_rd32(device, 0x00d954 + base);
 			udelay(1);
-- 
2.25.1

[PATCH 5.7 015/179] scsi: mpt3sas: Fix error returns in BRM_status_show

[Greg Kroah-Hartman]

From: Johannes Thumshirn <johannes.thumshirn@wdc.com>

[ Upstream commit 0fd181456aa0826057adbfb6c79c40f4083cfd75 ]

BRM_status_show() has several error branches, but none of them record the
error in the error return.

Also while at it remove the manual mutex_unlock() of the pci_access_mutex
in case of an ongoing pci error recovery or host removal and jump to the
cleanup label instead.

Note: We can safely jump to out from here as io_unit_pg3 is initialized to
NULL and if it hasn't been allocated, kfree() skips the NULL pointer.

[mkp: compilation warning]

Link: https://lore.kernel.org/r/20200701131454.5255-1-johannes.thumshirn@wdc.com
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_ctl.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index e94e72de2fc68..983e568ff2317 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -3149,15 +3149,14 @@ BRM_status_show(struct device *cdev, struct device_attribute *attr,
 	}
 	/* pci_access_mutex lock acquired by sysfs show path */
 	mutex_lock(&ioc->pci_access_mutex);
-	if (ioc->pci_error_recovery || ioc->remove_host) {
-		mutex_unlock(&ioc->pci_access_mutex);
-		return 0;
-	}
+	if (ioc->pci_error_recovery || ioc->remove_host)
+		goto out;
 
 	/* allocate upto GPIOVal 36 entries */
 	sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
 	io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
 	if (!io_unit_pg3) {
+		rc = -ENOMEM;
 		ioc_err(ioc, "%s: failed allocating memory for iounit_pg3: (%d) bytes\n",
 			__func__, sz);
 		goto out;
@@ -3167,6 +3166,7 @@ BRM_status_show(struct device *cdev, struct device_attribute *attr,
 	    0) {
 		ioc_err(ioc, "%s: failed reading iounit_pg3\n",
 			__func__);
+		rc = -EINVAL;
 		goto out;
 	}
 
@@ -3174,12 +3174,14 @@ BRM_status_show(struct device *cdev, struct device_attribute *attr,
 	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
 		ioc_err(ioc, "%s: iounit_pg3 failed with ioc_status(0x%04x)\n",
 			__func__, ioc_status);
+		rc = -EINVAL;
 		goto out;
 	}
 
 	if (io_unit_pg3->GPIOCount < 25) {
 		ioc_err(ioc, "%s: iounit_pg3->GPIOCount less than 25 entries, detected (%d) entries\n",
 			__func__, io_unit_pg3->GPIOCount);
+		rc = -EINVAL;
 		goto out;
 	}
 
-- 
2.25.1

[PATCH 5.7 016/179] scsi: dh: Add Fujitsu device to devinfo and dh lists

[Greg Kroah-Hartman]

From: Steve Schremmer <steve.schremmer@netapp.com>

[ Upstream commit e094fd346021b820f37188aaa6b502c7490ab5b5 ]

Add FUJITSU ETERNUS_AHB

Link: https://lore.kernel.org/r/DM6PR06MB5276CCA765336BD312C4282E8C660@DM6PR06MB5276.namprd06.prod.outlook.com
Signed-off-by: Steve Schremmer <steve.schremmer@netapp.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_devinfo.c | 1 +
 drivers/scsi/scsi_dh.c      | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index eed31021e7885..ba84244c1b4f6 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -239,6 +239,7 @@ static struct {
 	{"LSI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
 	{"ENGENIO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
 	{"LENOVO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
+	{"FUJITSU", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
 	{"SanDisk", "Cruzer Blade", NULL, BLIST_TRY_VPD_PAGES |
 		BLIST_INQUIRY_36},
 	{"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c
index 42f0550d6b11f..6f41e4b5a2b85 100644
--- a/drivers/scsi/scsi_dh.c
+++ b/drivers/scsi/scsi_dh.c
@@ -63,6 +63,7 @@ static const struct scsi_dh_blist scsi_dh_blist[] = {
 	{"LSI", "INF-01-00",		"rdac", },
 	{"ENGENIO", "INF-01-00",	"rdac", },
 	{"LENOVO", "DE_Series",		"rdac", },
+	{"FUJITSU", "ETERNUS_AHB",	"rdac", },
 	{NULL, NULL,			NULL },
 };
 
-- 
2.25.1

[PATCH 5.7 017/179] dm: use bio_uninit instead of bio_disassociate_blkg

[Greg Kroah-Hartman]

From: Christoph Hellwig <hch@lst.de>

[ Upstream commit 382761dc6312965a11f82f2217e16ec421bf17ae ]

bio_uninit is the proper API to clean up a BIO that has been allocated
on stack or inside a structure that doesn't come from the BIO allocator.
Switch dm to use that instead of bio_disassociate_blkg, which really is
an implementation detail.  Note that the bio_uninit calls are also moved
to the two callers of __send_empty_flush, so that they better pair with
the bio_init calls used to initialize them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 05333fc2f8d2b..9793b04e9ff3b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1446,9 +1446,6 @@ static int __send_empty_flush(struct clone_info *ci)
 	BUG_ON(bio_has_data(ci->bio));
 	while ((ti = dm_table_get_target(ci->map, target_nr++)))
 		__send_duplicate_bios(ci, ti, ti->num_flush_bios, NULL);
-
-	bio_disassociate_blkg(ci->bio);
-
 	return 0;
 }
 
@@ -1636,6 +1633,7 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md,
 		ci.bio = &flush_bio;
 		ci.sector_count = 0;
 		error = __send_empty_flush(&ci);
+		bio_uninit(ci.bio);
 		/* dec_pending submits any data associated with flush */
 	} else if (op_is_zone_mgmt(bio_op(bio))) {
 		ci.bio = bio;
@@ -1710,6 +1708,7 @@ static blk_qc_t __process_bio(struct mapped_device *md, struct dm_table *map,
 		ci.bio = &flush_bio;
 		ci.sector_count = 0;
 		error = __send_empty_flush(&ci);
+		bio_uninit(ci.bio);
 		/* dec_pending submits any data associated with flush */
 	} else {
 		struct dm_target_io *tio;
-- 
2.25.1

[PATCH 5.7 018/179] drivers/firmware/psci: Fix memory leakage in alloc_init_cpu_groups()

[Greg Kroah-Hartman]

From: Gavin Shan <gshan@redhat.com>

[ Upstream commit c377e67c6271954969384f9be1b1b71de13eba30 ]

The CPU mask (@tmp) should be released on failing to allocate
@cpu_groups or any of its elements. Otherwise, it leads to memory
leakage because the CPU mask variable is dynamically allocated
when CONFIG_CPUMASK_OFFSTACK is enabled.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200630075227.199624-1-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/psci/psci_checker.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/psci/psci_checker.c b/drivers/firmware/psci/psci_checker.c
index 873841af8d575..d9b1a2d71223e 100644
--- a/drivers/firmware/psci/psci_checker.c
+++ b/drivers/firmware/psci/psci_checker.c
@@ -157,8 +157,10 @@ static int alloc_init_cpu_groups(cpumask_var_t **pcpu_groups)
 
 	cpu_groups = kcalloc(nb_available_cpus, sizeof(cpu_groups),
 			     GFP_KERNEL);
-	if (!cpu_groups)
+	if (!cpu_groups) {
+		free_cpumask_var(tmp);
 		return -ENOMEM;
+	}
 
 	cpumask_copy(tmp, cpu_online_mask);
 
@@ -167,6 +169,7 @@ static int alloc_init_cpu_groups(cpumask_var_t **pcpu_groups)
 			topology_core_cpumask(cpumask_any(tmp));
 
 		if (!alloc_cpumask_var(&cpu_groups[num_groups], GFP_KERNEL)) {
+			free_cpumask_var(tmp);
 			free_cpu_groups(num_groups, &cpu_groups);
 			return -ENOMEM;
 		}
-- 
2.25.1

[PATCH 5.7 019/179] fuse: fix weird page warning

[Greg Kroah-Hartman]

From: Miklos Szeredi <mszeredi@redhat.com>

commit a5005c3cda6eeb6b95645e6cc32f58dafeffc976 upstream.

When PageWaiters was added, updating this check was missed.

Reported-by: Nikolaus Rath <Nikolaus@rath.org>
Reported-by: Hugh Dickins <hughd@google.com>
Fixes: 62906027091f ("mm: add PageWaiters indicating tasks are waiting for a page bit")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fuse/dev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 5c155437a455d..ec02c3240176c 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -771,7 +771,8 @@ static int fuse_check_page(struct page *page)
 	       1 << PG_uptodate |
 	       1 << PG_lru |
 	       1 << PG_active |
-	       1 << PG_reclaim))) {
+	       1 << PG_reclaim |
+	       1 << PG_waiters))) {
 		pr_warn("trying to steal weird page\n");
 		pr_warn("  page=%p index=%li flags=%08lx, count=%i, mapcount=%i, mapping=%p\n", page, page->index, page->flags, page_count(page), page_mapcount(page), page->mapping);
 		return 1;
-- 
2.25.1

[PATCH 5.7 020/179] irqdomain/treewide: Keep firmware node unconditionally allocated

[Greg Kroah-Hartman]

From: Thomas Gleixner <tglx@linutronix.de>

[ Upstream commit e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb ]

Quite some non OF/ACPI users of irqdomains allocate firmware nodes of type
IRQCHIP_FWNODE_NAMED or IRQCHIP_FWNODE_NAMED_ID and free them right after
creating the irqdomain. The only purpose of these FW nodes is to convey
name information. When this was introduced the core code did not store the
pointer to the node in the irqdomain. A recent change stored the firmware
node pointer in irqdomain for other reasons and missed to notice that the
usage sites which do the alloc_fwnode/create_domain/free_fwnode sequence
are broken by this. Storing a dangling pointer is dangerous itself, but in
case that the domain is destroyed later on this leads to a double free.

Remove the freeing of the firmware node after creating the irqdomain from
all affected call sites to cure this.

Fixes: 711419e504eb ("irqdomain: Add the missing assignment of domain->fwnode for named fwnode")
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/873661qakd.fsf@nanos.tec.linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/pci/pci-xtalk-bridge.c    |  5 +++--
 arch/x86/kernel/apic/io_apic.c      | 10 +++++-----
 arch/x86/kernel/apic/msi.c          | 18 ++++++++++++------
 arch/x86/kernel/apic/vector.c       |  1 -
 arch/x86/platform/uv/uv_irq.c       |  3 ++-
 drivers/iommu/amd_iommu.c           |  5 +++--
 drivers/iommu/hyperv-iommu.c        |  5 ++++-
 drivers/iommu/intel_irq_remapping.c |  2 +-
 drivers/mfd/ioc3.c                  |  5 +++--
 drivers/pci/controller/vmd.c        |  5 +++--
 10 files changed, 36 insertions(+), 23 deletions(-)

diff --git a/arch/mips/pci/pci-xtalk-bridge.c b/arch/mips/pci/pci-xtalk-bridge.c
index 3b2552fb77351..5958217861b86 100644
--- a/arch/mips/pci/pci-xtalk-bridge.c
+++ b/arch/mips/pci/pci-xtalk-bridge.c
@@ -627,9 +627,10 @@ static int bridge_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	domain = irq_domain_create_hierarchy(parent, 0, 8, fn,
 					     &bridge_domain_ops, NULL);
-	irq_domain_free_fwnode(fn);
-	if (!domain)
+	if (!domain) {
+		irq_domain_free_fwnode(fn);
 		return -ENOMEM;
+	}
 
 	pci_set_flags(PCI_PROBE_ONLY);
 
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 913c88617848b..57447f03ee87c 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2329,12 +2329,12 @@ static int mp_irqdomain_create(int ioapic)
 	ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops,
 						 (void *)(long)ioapic);
 
-	/* Release fw handle if it was allocated above */
-	if (!cfg->dev)
-		irq_domain_free_fwnode(fn);
-
-	if (!ip->irqdomain)
+	if (!ip->irqdomain) {
+		/* Release fw handle if it was allocated above */
+		if (!cfg->dev)
+			irq_domain_free_fwnode(fn);
 		return -ENOMEM;
+	}
 
 	ip->irqdomain->parent = parent;
 
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 159bd0cb85486..a20873bbbed67 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -262,12 +262,13 @@ void __init arch_init_msi_domain(struct irq_domain *parent)
 		msi_default_domain =
 			pci_msi_create_irq_domain(fn, &pci_msi_domain_info,
 						  parent);
-		irq_domain_free_fwnode(fn);
 	}
-	if (!msi_default_domain)
+	if (!msi_default_domain) {
+		irq_domain_free_fwnode(fn);
 		pr_warn("failed to initialize irqdomain for MSI/MSI-x.\n");
-	else
+	} else {
 		msi_default_domain->flags |= IRQ_DOMAIN_MSI_NOMASK_QUIRK;
+	}
 }
 
 #ifdef CONFIG_IRQ_REMAP
@@ -300,7 +301,8 @@ struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent,
 	if (!fn)
 		return NULL;
 	d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent);
-	irq_domain_free_fwnode(fn);
+	if (!d)
+		irq_domain_free_fwnode(fn);
 	return d;
 }
 #endif
@@ -363,7 +365,8 @@ static struct irq_domain *dmar_get_irq_domain(void)
 	if (fn) {
 		dmar_domain = msi_create_irq_domain(fn, &dmar_msi_domain_info,
 						    x86_vector_domain);
-		irq_domain_free_fwnode(fn);
+		if (!dmar_domain)
+			irq_domain_free_fwnode(fn);
 	}
 out:
 	mutex_unlock(&dmar_lock);
@@ -488,7 +491,10 @@ struct irq_domain *hpet_create_irq_domain(int hpet_id)
 	}
 
 	d = msi_create_irq_domain(fn, domain_info, parent);
-	irq_domain_free_fwnode(fn);
+	if (!d) {
+		irq_domain_free_fwnode(fn);
+		kfree(domain_info);
+	}
 	return d;
 }
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index cf8b6ebc60314..410363e60968f 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -707,7 +707,6 @@ int __init arch_early_irq_init(void)
 	x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops,
 						   NULL);
 	BUG_ON(x86_vector_domain == NULL);
-	irq_domain_free_fwnode(fn);
 	irq_set_default_host(x86_vector_domain);
 
 	arch_init_msi_domain(x86_vector_domain);
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index fc13cbbb2dce2..abb6075397f05 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -167,9 +167,10 @@ static struct irq_domain *uv_get_irq_domain(void)
 		goto out;
 
 	uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL);
-	irq_domain_free_fwnode(fn);
 	if (uv_domain)
 		uv_domain->parent = x86_vector_domain;
+	else
+		irq_domain_free_fwnode(fn);
 out:
 	mutex_unlock(&uv_lock);
 
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 2883ac389abbe..9c2e2ed828267 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -4090,9 +4090,10 @@ int amd_iommu_create_irq_domain(struct amd_iommu *iommu)
 	if (!fn)
 		return -ENOMEM;
 	iommu->ir_domain = irq_domain_create_tree(fn, &amd_ir_domain_ops, iommu);
-	irq_domain_free_fwnode(fn);
-	if (!iommu->ir_domain)
+	if (!iommu->ir_domain) {
+		irq_domain_free_fwnode(fn);
 		return -ENOMEM;
+	}
 
 	iommu->ir_domain->parent = arch_get_ir_parent_domain();
 	iommu->msi_domain = arch_create_remap_msi_irq_domain(iommu->ir_domain,
diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c
index a386b83e0e34b..f0fe5030acd36 100644
--- a/drivers/iommu/hyperv-iommu.c
+++ b/drivers/iommu/hyperv-iommu.c
@@ -155,7 +155,10 @@ static int __init hyperv_prepare_irq_remapping(void)
 				0, IOAPIC_REMAPPING_ENTRY, fn,
 				&hyperv_ir_domain_ops, NULL);
 
-	irq_domain_free_fwnode(fn);
+	if (!ioapic_ir_domain) {
+		irq_domain_free_fwnode(fn);
+		return -ENOMEM;
+	}
 
 	/*
 	 * Hyper-V doesn't provide irq remapping function for
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 81e43c1df7ecb..982d796b686b8 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -563,8 +563,8 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
 					    0, INTR_REMAP_TABLE_ENTRIES,
 					    fn, &intel_ir_domain_ops,
 					    iommu);
-	irq_domain_free_fwnode(fn);
 	if (!iommu->ir_domain) {
+		irq_domain_free_fwnode(fn);
 		pr_err("IR%d: failed to allocate irqdomain\n", iommu->seq_id);
 		goto out_free_bitmap;
 	}
diff --git a/drivers/mfd/ioc3.c b/drivers/mfd/ioc3.c
index 02998d4eb74b0..74cee7cb0afc9 100644
--- a/drivers/mfd/ioc3.c
+++ b/drivers/mfd/ioc3.c
@@ -142,10 +142,11 @@ static int ioc3_irq_domain_setup(struct ioc3_priv_data *ipd, int irq)
 		goto err;
 
 	domain = irq_domain_create_linear(fn, 24, &ioc3_irq_domain_ops, ipd);
-	if (!domain)
+	if (!domain) {
+		irq_domain_free_fwnode(fn);
 		goto err;
+	}
 
-	irq_domain_free_fwnode(fn);
 	ipd->domain = domain;
 
 	irq_set_chained_handler_and_data(irq, ioc3_irq_handler, domain);
diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index e386d4eac4070..9a64cf90c291b 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -546,9 +546,10 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
 
 	vmd->irq_domain = pci_msi_create_irq_domain(fn, &vmd_msi_domain_info,
 						    x86_vector_domain);
-	irq_domain_free_fwnode(fn);
-	if (!vmd->irq_domain)
+	if (!vmd->irq_domain) {
+		irq_domain_free_fwnode(fn);
 		return -ENODEV;
+	}
 
 	pci_add_resource(&resources, &vmd->resources[0]);
 	pci_add_resource_offset(&resources, &vmd->resources[1], offset[0]);
-- 
2.25.1

[PATCH 5.7 021/179] drm/nouveau/nouveau: fix page fault on device private memory

[Greg Kroah-Hartman]

From: Ralph Campbell <rcampbell@nvidia.com>

[ Upstream commit ed710a6ed797430026aa5116dd0ab22378798b69 ]

If system memory is migrated to device private memory and no GPU MMU
page table entry exists, the GPU will fault and call hmm_range_fault()
to get the PFN for the page. Since the .dev_private_owner pointer in
struct hmm_range is not set, hmm_range_fault returns an error which
results in the GPU program stopping with a fatal fault.
Fix this by setting .dev_private_owner appropriately.

Fixes: 08ddddda667b ("mm/hmm: check the device private page owner in hmm_range_fault()")
Cc: stable@vger.kernel.org
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_svm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index 645fedd77e21b..a9ce86740799f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
@@ -534,6 +534,7 @@ static int nouveau_range_fault(struct nouveau_svmm *svmm,
 		.flags = nouveau_svm_pfn_flags,
 		.values = nouveau_svm_pfn_values,
 		.pfn_shift = NVIF_VMM_PFNMAP_V0_ADDR_SHIFT,
+		.dev_private_owner = drm->dev,
 	};
 	struct mm_struct *mm = notifier->notifier.mm;
 	long ret;
-- 
2.25.1

[PATCH 5.7 022/179] drm/amd/display: Check DMCU Exists Before Loading

[Greg Kroah-Hartman]

From: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>

[ Upstream commit 17bdb4a82fe5014c8aa5b2103c80c5729744a096 ]

Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d06fa63801799..7da2a22dbde7e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1342,9 +1342,14 @@ static int dm_late_init(void *handle)
 	struct dmcu_iram_parameters params;
 	unsigned int linear_lut[16];
 	int i;
-	struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu;
+	struct dmcu *dmcu = NULL;
 	bool ret;
 
+	if (!adev->dm.fw_dmcu)
+		return detect_mst_link_for_all_connectors(adev->ddev);
+
+	dmcu = adev->dm.dc->res_pool->dmcu;
+
 	for (i = 0; i < 16; i++)
 		linear_lut[i] = 0xFFFF * i / 15;
 
-- 
2.25.1

[PATCH 5.7 023/179] drm/amd/display: add dmcub check on RENOIR

[Greg Kroah-Hartman]

From: Aaron Ma <aaron.ma@canonical.com>

[ Upstream commit 3b2e973dff59d88bee1d814ddf8762a24fc02b60 ]

RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 7da2a22dbde7e..837a286469ecf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1345,7 +1345,7 @@ static int dm_late_init(void *handle)
 	struct dmcu *dmcu = NULL;
 	bool ret;
 
-	if (!adev->dm.fw_dmcu)
+	if (!adev->dm.fw_dmcu && !adev->dm.dmub_fw)
 		return detect_mst_link_for_all_connectors(adev->ddev);
 
 	dmcu = adev->dm.dc->res_pool->dmcu;
-- 
2.25.1

[PATCH 5.7 024/179] dm mpath: pass IO start time to path selector

[Greg Kroah-Hartman]

From: Gabriel Krisman Bertazi <krisman@collabora.com>

[ Upstream commit 087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b ]

The HST path selector needs this information to perform path
prediction. For request-based mpath, struct request's io_start_time_ns
is used, while for bio-based, use the start_time stored in dm_io.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-mpath.c         | 9 ++++++---
 drivers/md/dm-path-selector.h | 2 +-
 drivers/md/dm-queue-length.c  | 2 +-
 drivers/md/dm-service-time.c  | 2 +-
 drivers/md/dm.c               | 9 +++++++++
 include/linux/device-mapper.h | 2 ++
 6 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index e0c800cf87a9b..74246d7c7d68e 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -567,7 +567,8 @@ static void multipath_release_clone(struct request *clone,
 		if (pgpath && pgpath->pg->ps.type->end_io)
 			pgpath->pg->ps.type->end_io(&pgpath->pg->ps,
 						    &pgpath->path,
-						    mpio->nr_bytes);
+						    mpio->nr_bytes,
+						    clone->io_start_time_ns);
 	}
 
 	blk_put_request(clone);
@@ -1617,7 +1618,8 @@ static int multipath_end_io(struct dm_target *ti, struct request *clone,
 		struct path_selector *ps = &pgpath->pg->ps;
 
 		if (ps->type->end_io)
-			ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes);
+			ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes,
+					 clone->io_start_time_ns);
 	}
 
 	return r;
@@ -1661,7 +1663,8 @@ static int multipath_end_io_bio(struct dm_target *ti, struct bio *clone,
 		struct path_selector *ps = &pgpath->pg->ps;
 
 		if (ps->type->end_io)
-			ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes);
+			ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes,
+					 dm_start_time_ns_from_clone(clone));
 	}
 
 	return r;
diff --git a/drivers/md/dm-path-selector.h b/drivers/md/dm-path-selector.h
index b6eb5365b1a46..c47bc0e20275b 100644
--- a/drivers/md/dm-path-selector.h
+++ b/drivers/md/dm-path-selector.h
@@ -74,7 +74,7 @@ struct path_selector_type {
 	int (*start_io) (struct path_selector *ps, struct dm_path *path,
 			 size_t nr_bytes);
 	int (*end_io) (struct path_selector *ps, struct dm_path *path,
-		       size_t nr_bytes);
+		       size_t nr_bytes, u64 start_time);
 };
 
 /* Register a path selector */
diff --git a/drivers/md/dm-queue-length.c b/drivers/md/dm-queue-length.c
index 969c4f1a36336..5fd018d184187 100644
--- a/drivers/md/dm-queue-length.c
+++ b/drivers/md/dm-queue-length.c
@@ -227,7 +227,7 @@ static int ql_start_io(struct path_selector *ps, struct dm_path *path,
 }
 
 static int ql_end_io(struct path_selector *ps, struct dm_path *path,
-		     size_t nr_bytes)
+		     size_t nr_bytes, u64 start_time)
 {
 	struct path_info *pi = path->pscontext;
 
diff --git a/drivers/md/dm-service-time.c b/drivers/md/dm-service-time.c
index f006a9005593b..9cfda665e9ebd 100644
--- a/drivers/md/dm-service-time.c
+++ b/drivers/md/dm-service-time.c
@@ -309,7 +309,7 @@ static int st_start_io(struct path_selector *ps, struct dm_path *path,
 }
 
 static int st_end_io(struct path_selector *ps, struct dm_path *path,
-		     size_t nr_bytes)
+		     size_t nr_bytes, u64 start_time)
 {
 	struct path_info *pi = path->pscontext;
 
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 9793b04e9ff3b..cefda95c9abb7 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -676,6 +676,15 @@ static bool md_in_flight(struct mapped_device *md)
 		return md_in_flight_bios(md);
 }
 
+u64 dm_start_time_ns_from_clone(struct bio *bio)
+{
+	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
+	struct dm_io *io = tio->io;
+
+	return jiffies_to_nsecs(io->start_time);
+}
+EXPORT_SYMBOL_GPL(dm_start_time_ns_from_clone);
+
 static void start_io_acct(struct dm_io *io)
 {
 	struct mapped_device *md = io->md;
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index af48d9da39160..934037d938b9a 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -332,6 +332,8 @@ void *dm_per_bio_data(struct bio *bio, size_t data_size);
 struct bio *dm_bio_from_per_bio_data(void *data, size_t data_size);
 unsigned dm_bio_get_target_bio_nr(const struct bio *bio);
 
+u64 dm_start_time_ns_from_clone(struct bio *bio);
+
 int dm_register_target(struct target_type *t);
 void dm_unregister_target(struct target_type *t);
 
-- 
2.25.1

[PATCH 5.7 025/179] dm: do not use waitqueue for request-based DM

[Greg Kroah-Hartman]

From: Ming Lei <ming.lei@redhat.com>

[ Upstream commit 85067747cf9888249fa11fa49ef75af5192d3988 ]

Given request-based DM now uses blk-mq's blk_mq_queue_inflight() to
determine if outstanding IO has completed (and DM has no control over
the blk-mq state machine used to track outstanding IO) it is unsafe to
wakeup waiter (dm_wait_for_completion) before blk-mq has cleared a
request's state bits (e.g. MQ_RQ_IN_FLIGHT or MQ_RQ_COMPLETE).  As
such dm_wait_for_completion() could be left to wait indefinitely if no
other requests complete.

Fix this by eliminating request-based DM's use of waitqueue to wait
for blk-mq requests to complete in dm_wait_for_completion.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Depends-on: 3c94d83cb3526 ("blk-mq: change blk_mq_queue_busy() to blk_mq_queue_inflight()")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-rq.c |  4 ---
 drivers/md/dm.c    | 64 ++++++++++++++++++++++++++++------------------
 2 files changed, 39 insertions(+), 29 deletions(-)

diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 3f8577e2c13be..9fb46a6301d80 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -146,10 +146,6 @@ static void rq_end_stats(struct mapped_device *md, struct request *orig)
  */
 static void rq_completed(struct mapped_device *md)
 {
-	/* nudge anyone waiting on suspend queue */
-	if (unlikely(wq_has_sleeper(&md->wait)))
-		wake_up(&md->wait);
-
 	/*
 	 * dm_put() must be at the end of this function. See the comment above
 	 */
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index cefda95c9abb7..e70f22d7874fa 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -654,28 +654,6 @@ static void free_tio(struct dm_target_io *tio)
 	bio_put(&tio->clone);
 }
 
-static bool md_in_flight_bios(struct mapped_device *md)
-{
-	int cpu;
-	struct hd_struct *part = &dm_disk(md)->part0;
-	long sum = 0;
-
-	for_each_possible_cpu(cpu) {
-		sum += part_stat_local_read_cpu(part, in_flight[0], cpu);
-		sum += part_stat_local_read_cpu(part, in_flight[1], cpu);
-	}
-
-	return sum != 0;
-}
-
-static bool md_in_flight(struct mapped_device *md)
-{
-	if (queue_is_mq(md->queue))
-		return blk_mq_queue_inflight(md->queue);
-	else
-		return md_in_flight_bios(md);
-}
-
 u64 dm_start_time_ns_from_clone(struct bio *bio)
 {
 	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
@@ -2447,15 +2425,29 @@ void dm_put(struct mapped_device *md)
 }
 EXPORT_SYMBOL_GPL(dm_put);
 
-static int dm_wait_for_completion(struct mapped_device *md, long task_state)
+static bool md_in_flight_bios(struct mapped_device *md)
+{
+	int cpu;
+	struct hd_struct *part = &dm_disk(md)->part0;
+	long sum = 0;
+
+	for_each_possible_cpu(cpu) {
+		sum += part_stat_local_read_cpu(part, in_flight[0], cpu);
+		sum += part_stat_local_read_cpu(part, in_flight[1], cpu);
+	}
+
+	return sum != 0;
+}
+
+static int dm_wait_for_bios_completion(struct mapped_device *md, long task_state)
 {
 	int r = 0;
 	DEFINE_WAIT(wait);
 
-	while (1) {
+	while (true) {
 		prepare_to_wait(&md->wait, &wait, task_state);
 
-		if (!md_in_flight(md))
+		if (!md_in_flight_bios(md))
 			break;
 
 		if (signal_pending_state(task_state, current)) {
@@ -2470,6 +2462,28 @@ static int dm_wait_for_completion(struct mapped_device *md, long task_state)
 	return r;
 }
 
+static int dm_wait_for_completion(struct mapped_device *md, long task_state)
+{
+	int r = 0;
+
+	if (!queue_is_mq(md->queue))
+		return dm_wait_for_bios_completion(md, task_state);
+
+	while (true) {
+		if (!blk_mq_queue_inflight(md->queue))
+			break;
+
+		if (signal_pending_state(task_state, current)) {
+			r = -EINTR;
+			break;
+		}
+
+		msleep(5);
+	}
+
+	return r;
+}
+
 /*
  * Process the deferred bios
  */
-- 
2.25.1

[PATCH 5.7 026/179] SUNRPC reverting d03727b248d0 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")

[Greg Kroah-Hartman]

From: Olga Kornievskaia <kolga@netapp.com>

commit 65caafd0d2145d1dd02072c4ced540624daeab40 upstream.

Reverting commit d03727b248d0 "NFSv4 fix CLOSE not waiting for
direct IO compeletion". This patch made it so that fput() by calling
inode_dio_done() in nfs_file_release() would wait uninterruptably
for any outstanding directIO to the file (but that wait on IO should
be killable).

The problem the patch was also trying to address was REMOVE returning
ERR_ACCESS because the file is still opened, is supposed to be resolved
by server returning ERR_FILE_OPEN and not ERR_ACCESS.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/nfs/direct.c |   13 ++++---------
 fs/nfs/file.c   |    1 -
 2 files changed, 4 insertions(+), 10 deletions(-)

--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -267,6 +267,8 @@ static void nfs_direct_complete(struct n
 {
 	struct inode *inode = dreq->inode;
 
+	inode_dio_end(inode);
+
 	if (dreq->iocb) {
 		long res = (long) dreq->error;
 		if (dreq->count != 0) {
@@ -278,10 +280,7 @@ static void nfs_direct_complete(struct n
 
 	complete(&dreq->completion);
 
-	igrab(inode);
 	nfs_direct_req_release(dreq);
-	inode_dio_end(inode);
-	iput(inode);
 }
 
 static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
@@ -411,10 +410,8 @@ static ssize_t nfs_direct_read_schedule_
 	 * generic layer handle the completion.
 	 */
 	if (requested_bytes == 0) {
-		igrab(inode);
-		nfs_direct_req_release(dreq);
 		inode_dio_end(inode);
-		iput(inode);
+		nfs_direct_req_release(dreq);
 		return result < 0 ? result : -EIO;
 	}
 
@@ -867,10 +864,8 @@ static ssize_t nfs_direct_write_schedule
 	 * generic layer handle the completion.
 	 */
 	if (requested_bytes == 0) {
-		igrab(inode);
-		nfs_direct_req_release(dreq);
 		inode_dio_end(inode);
-		iput(inode);
+		nfs_direct_req_release(dreq);
 		return result < 0 ? result : -EIO;
 	}
 
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -83,7 +83,6 @@ nfs_file_release(struct inode *inode, st
 	dprintk("NFS: release(%pD2)\n", filp);
 
 	nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
-	inode_dio_wait(inode);
 	nfs_file_clear_open_context(filp);
 	return 0;
 }

[PATCH 5.7 027/179] exfat: fix overflow issue in exfat_cluster_to_sector()

[Greg Kroah-Hartman]

From: Namjae Jeon <namjae.jeon@samsung.com>

commit 43946b70494beefe40ec1b2ba4744c0f294d7736 upstream.

An overflow issue can occur while calculating sector in
exfat_cluster_to_sector(). It needs to cast clus's type to sector_t
before left shifting.

Fixes: 1acf1a564b60 ("exfat: add in-memory and on-disk structures and headers")
Cc: stable@vger.kernel.org # v5.7
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/exfat/exfat_fs.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -375,7 +375,7 @@ static inline bool exfat_is_last_sector_
 static inline sector_t exfat_cluster_to_sector(struct exfat_sb_info *sbi,
 		unsigned int clus)
 {
-	return ((clus - EXFAT_RESERVED_CLUSTERS) << sbi->sect_per_clus_bits) +
+	return ((sector_t)(clus - EXFAT_RESERVED_CLUSTERS) << sbi->sect_per_clus_bits) +
 		sbi->data_start_sector;
 }
 

[PATCH 5.7 028/179] exfat: fix wrong hint_stat initialization in exfat_find_dir_entry()

[Greg Kroah-Hartman]

From: Namjae Jeon <namjae.jeon@samsung.com>

commit d2fa0c337d97a5490190b9f3b9c73c8f9f3602a1 upstream.

We found the wrong hint_stat initialization in exfat_find_dir_entry().
It should be initialized when cluster is EXFAT_EOF_CLUSTER.

Fixes: ca06197382bd ("exfat: add directory operations")
Cc: stable@vger.kernel.org # v5.7
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/exfat/dir.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/exfat/dir.c
+++ b/fs/exfat/dir.c
@@ -1160,7 +1160,7 @@ found:
 			ret = exfat_get_next_cluster(sb, &clu.dir);
 		}
 
-		if (ret || clu.dir != EXFAT_EOF_CLUSTER) {
+		if (ret || clu.dir == EXFAT_EOF_CLUSTER) {
 			/* just initialized hint_stat */
 			hint_stat->clu = p_dir->dir;
 			hint_stat->eidx = 0;

[PATCH 5.7 029/179] exfat: fix wrong size update of stream entry by typo

[Greg Kroah-Hartman]

From: Hyeongseok Kim <hyeongseok@gmail.com>

commit 41e3928f8c58184fcf0bb22e822af39a436370c7 upstream.

The stream.size field is updated to the value of create timestamp
of the file entry. Fix this to use correct stream entry pointer.

Fixes: 29bbb14bfc80 ("exfat: fix incorrect update of stream entry in __exfat_truncate()")
Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/exfat/file.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -175,7 +175,7 @@ int __exfat_truncate(struct inode *inode
 			ep2->dentry.stream.size = 0;
 		} else {
 			ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
-			ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+			ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
 		}
 
 		if (new_size == 0) {

[PATCH 5.7 030/179] exfat: fix name_hash computation on big endian systems

[Greg Kroah-Hartman]

From: Ilya Ponetayev <i.ponetaev@ndmsystems.com>

commit db415f7aae07cadcabd5d2a659f8ad825c905299 upstream.

On-disk format for name_hash field is LE, so it must be explicitly
transformed on BE system for proper result.

Fixes: 370e812b3ec1 ("exfat: add nls operations")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
Signed-off-by: Ilya Ponetayev <i.ponetaev@ndmsystems.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/exfat/nls.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/fs/exfat/nls.c
+++ b/fs/exfat/nls.c
@@ -495,7 +495,7 @@ static int exfat_utf8_to_utf16(struct su
 		struct exfat_uni_name *p_uniname, int *p_lossy)
 {
 	int i, unilen, lossy = NLS_NAME_NO_LOSSY;
-	unsigned short upname[MAX_NAME_LENGTH + 1];
+	__le16 upname[MAX_NAME_LENGTH + 1];
 	unsigned short *uniname = p_uniname->name;
 
 	WARN_ON(!len);
@@ -523,7 +523,7 @@ static int exfat_utf8_to_utf16(struct su
 		    exfat_wstrchr(bad_uni_chars, *uniname))
 			lossy |= NLS_NAME_LOSSY;
 
-		upname[i] = exfat_toupper(sb, *uniname);
+		upname[i] = cpu_to_le16(exfat_toupper(sb, *uniname));
 		uniname++;
 	}
 
@@ -614,7 +614,7 @@ static int exfat_nls_to_ucs2(struct supe
 		struct exfat_uni_name *p_uniname, int *p_lossy)
 {
 	int i = 0, unilen = 0, lossy = NLS_NAME_NO_LOSSY;
-	unsigned short upname[MAX_NAME_LENGTH + 1];
+	__le16 upname[MAX_NAME_LENGTH + 1];
 	unsigned short *uniname = p_uniname->name;
 	struct nls_table *nls = EXFAT_SB(sb)->nls_io;
 
@@ -628,7 +628,7 @@ static int exfat_nls_to_ucs2(struct supe
 		    exfat_wstrchr(bad_uni_chars, *uniname))
 			lossy |= NLS_NAME_LOSSY;
 
-		upname[unilen] = exfat_toupper(sb, *uniname);
+		upname[unilen] = cpu_to_le16(exfat_toupper(sb, *uniname));
 		uniname++;
 		unilen++;
 	}

[PATCH 5.7 031/179] btrfs: reloc: clear DEAD_RELOC_TREE bit for orphan roots to prevent runaway balance

[Greg Kroah-Hartman]

From: Qu Wenruo <wqu@suse.com>

commit 1dae7e0e58b484eaa43d530f211098fdeeb0f404 upstream.

[BUG]
There are several reported runaway balance, that balance is flooding the
log with "found X extents" where the X never changes.

[CAUSE]
Commit d2311e698578 ("btrfs: relocation: Delay reloc tree deletion after
merge_reloc_roots") introduced BTRFS_ROOT_DEAD_RELOC_TREE bit to
indicate that one subvolume has finished its tree blocks swap with its
reloc tree.

However if balance is canceled or hits ENOSPC halfway, we didn't clear
the BTRFS_ROOT_DEAD_RELOC_TREE bit, leaving that bit hanging forever
until unmount.

Any subvolume root with that bit, would cause backref cache to skip this
tree block, as it has finished its tree block swap.  This would cause
all tree blocks of that root be ignored by balance, leading to runaway
balance.

[FIX]
Fix the problem by also clearing the BTRFS_ROOT_DEAD_RELOC_TREE bit for
the original subvolume of orphan reloc root.

Add an umount check for the stale bit still set.

Fixes: d2311e698578 ("btrfs: relocation: Delay reloc tree deletion after merge_reloc_roots")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 fs/btrfs/disk-io.c    |    1 +
 fs/btrfs/relocation.c |    2 ++
 2 files changed, 3 insertions(+)

--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1998,6 +1998,7 @@ void btrfs_put_root(struct btrfs_root *r
 
 	if (refcount_dec_and_test(&root->refs)) {
 		WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree));
+		WARN_ON(test_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state));
 		if (root->anon_dev)
 			free_anon_bdev(root->anon_dev);
 		btrfs_drew_lock_destroy(&root->snapshot_lock);
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2642,6 +2642,8 @@ again:
 					root->reloc_root = NULL;
 					btrfs_put_root(reloc_root);
 				}
+				clear_bit(BTRFS_ROOT_DEAD_RELOC_TREE,
+					  &root->state);
 				btrfs_put_root(root);
 			}
 

[PATCH 5.7 032/179] uprobes: Change handle_swbp() to send SIGTRAP with si_code=SI_KERNEL, to fix GDB regression

[Greg Kroah-Hartman]

From: Oleg Nesterov <oleg@redhat.com>

commit fe5ed7ab99c656bd2f5b79b49df0e9ebf2cead8a upstream.

If a tracee is uprobed and it hits int3 inserted by debugger, handle_swbp()
does send_sig(SIGTRAP, current, 0) which means si_code == SI_USER. This used
to work when this code was written, but then GDB started to validate si_code
and now it simply can't use breakpoints if the tracee has an active uprobe:

	# cat test.c
	void unused_func(void)
	{
	}
	int main(void)
	{
		return 0;
	}

	# gcc -g test.c -o test
	# perf probe -x ./test -a unused_func
	# perf record -e probe_test:unused_func gdb ./test -ex run
	GNU gdb (GDB) 10.0.50.20200714-git
	...
	Program received signal SIGTRAP, Trace/breakpoint trap.
	0x00007ffff7ddf909 in dl_main () from /lib64/ld-linux-x86-64.so.2
	(gdb)

The tracee hits the internal breakpoint inserted by GDB to monitor shared
library events but GDB misinterprets this SIGTRAP and reports a signal.

Change handle_swbp() to use force_sig(SIGTRAP), this matches do_int3_user()
and fixes the problem.

This is the minimal fix for -stable, arch/x86/kernel/uprobes.c is equally
wrong; it should use send_sigtrap(TRAP_TRACE) instead of send_sig(SIGTRAP),
but this doesn't confuse GDB and needs another x86-specific patch.

Reported-by: Aaron Merey <amerey@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200723154420.GA32043@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 kernel/events/uprobes.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -2205,7 +2205,7 @@ static void handle_swbp(struct pt_regs *
 	if (!uprobe) {
 		if (is_swbp > 0) {
 			/* No matching uprobe; signal SIGTRAP. */
-			send_sig(SIGTRAP, current, 0);
+			force_sig(SIGTRAP);
 		} else {
 			/*
 			 * Either we raced with uprobe_unregister() or we can't

[PATCH 5.7 033/179] ALSA: hda/realtek: Fixed ALC298 sound bug by adding quirk for Samsung Notebook Pen S

[Greg Kroah-Hartman]

From: Joonho Wohn <doomsheart@gmail.com>

commit 568e4e82128aac2c62c2c359ebebb6007fd794f9 upstream.

Fixed no headphone sound bug on laptop Samsung Notebook Pen S
(950SBE-951SBE), by using existing patch in Linus' tree, commit
14425f1f521f (ALSA: hda/realtek: Add quirk for Samsung Notebook).
This laptop uses the same ALC298 but different subsystem id 0x144dc812.
I added SND_PCI_QUIRK at sound/pci/hda/patch_realtek.c

Signed-off-by: Joonho Wohn <doomsheart@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAHcbMh291aWDKiWSZoxXB4-Eru6OYRwGA4AVEdCZeYmVLo5ZxQ@mail.gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/pci/hda/patch_realtek.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7551,6 +7551,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x144d, 0xc169, "Samsung Notebook 9 Pen (NP930SBE-K01US)", ALC298_FIXUP_SAMSUNG_HEADPHONE_VERY_QUIET),
 	SND_PCI_QUIRK(0x144d, 0xc176, "Samsung Notebook 9 Pro (NP930MBE-K04US)", ALC298_FIXUP_SAMSUNG_HEADPHONE_VERY_QUIET),
 	SND_PCI_QUIRK(0x144d, 0xc740, "Samsung Ativ book 8 (NP870Z5G)", ALC269_FIXUP_ATIV_BOOK_8),
+	SND_PCI_QUIRK(0x144d, 0xc812, "Samsung Notebook Pen S (NT950SBE-X58)", ALC298_FIXUP_SAMSUNG_HEADPHONE_VERY_QUIET),
 	SND_PCI_QUIRK(0x1458, 0xfa53, "Gigabyte BXBT-2807", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1462, 0xb120, "MSI Cubi MS-B120", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1462, 0xb171, "Cubi N 8GL (MS-B171)", ALC283_FIXUP_HEADSET_MIC),

[PATCH 5.7 034/179] ALSA: info: Drop WARN_ON() from buffer NULL sanity check

[Greg Kroah-Hartman]

From: Takashi Iwai <tiwai@suse.de>

commit 60379ba08532eca861e933b389526a4dc89e0c42 upstream.

snd_info_get_line() has a sanity check of NULL buffer -- both buffer
itself being NULL and buffer->buffer being NULL.  Basically both
checks are valid and necessary, but the problem is that it's with
snd_BUG_ON() macro that triggers WARN_ON().  The latter condition
(NULL buffer->buffer) can be met arbitrarily by user since the buffer
is allocated at the first write, so it means that user can trigger
WARN_ON() at will.

This patch addresses it by simply moving buffer->buffer NULL check out
of snd_BUG_ON() so that spurious WARNING is no longer triggered.

Reported-by: syzbot+e42d0746c3c3699b6061@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200717084023.5928-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/core/info.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -606,7 +606,9 @@ int snd_info_get_line(struct snd_info_bu
 {
 	int c;
 
-	if (snd_BUG_ON(!buffer || !buffer->buffer))
+	if (snd_BUG_ON(!buffer))
+		return 1;
+	if (!buffer->buffer)
 		return 1;
 	if (len <= 0 || buffer->stop || buffer->error)
 		return 1;

[PATCH 5.7 035/179] ASoC: rt5670: Correct RT5670_LDO_SEL_MASK

[Greg Kroah-Hartman]

From: Hans de Goede <hdegoede@redhat.com>

commit 5cacc6f5764e94fa753b2c1f5f7f1f3f74286e82 upstream.

The RT5670_PWR_ANLG1 register has 3 bits to select the LDO voltage,
so the correct mask is 0x7 not 0x3.

Because of this wrong mask we were programming the ldo bits
to a setting of binary 001 (0x05 & 0x03) instead of binary 101
when moving to SND_SOC_BIAS_PREPARE.

According to the datasheet 001 is a reserved value, so no idea
what it did, since the driver was working fine before I guess we
got lucky and it does something which is ok.

Fixes: 5e8351de740d ("ASoC: add RT5670 CODEC driver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200628155231.71089-3-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/codecs/rt5670.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/codecs/rt5670.h
+++ b/sound/soc/codecs/rt5670.h
@@ -757,7 +757,7 @@
 #define RT5670_PWR_VREF2_BIT			4
 #define RT5670_PWR_FV2				(0x1 << 3)
 #define RT5670_PWR_FV2_BIT			3
-#define RT5670_LDO_SEL_MASK			(0x3)
+#define RT5670_LDO_SEL_MASK			(0x7)
 #define RT5670_LDO_SEL_SFT			0
 
 /* Power Management for Analog 2 (0x64) */

[PATCH 5.7 036/179] ASoC: Intel: cht_bsw_rt5672: Change bus format to I2S 2 channel

[Greg Kroah-Hartman]

From: Hans de Goede <hdegoede@redhat.com>

commit 0ceb8a36d023d4bb4ffca3474a452fb1dfaa0ef2 upstream.

The default mode for SSP configuration is TDM 4 slot and so far we were
using this for the bus format on cht-bsw-rt56732 boards.

One board, the Lenovo Miix 2 10 uses not 1 but 2 codecs connected to SSP2.
The second piggy-backed, output-only codec is inside the keyboard-dock
(which has extra speakers). Unlike the main rt5672 codec, we cannot
configure this codec, it is hard coded to use 2 channel 24 bit I2S.

Using 4 channel TDM leads to the dock speakers codec (which listens in on
the data send from the SSP to the rt5672 codec) emiting horribly distorted
sound.

Since we only support 2 channels anyways, there is no need for TDM on any
cht-bsw-rt5672 designs. So we can simply use I2S 2ch everywhere.

This commit fixes the Lenovo Miix 2 10 dock speakers issue by changing
the bus format set in cht_codec_fixup() to I2S 2 channel.

This change has been tested on the following devices with a rt5672 codec:

Lenovo Miix 2 10
Lenovo Thinkpad 8
Lenovo Thinkpad 10 (gen 1)

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786723
Link: https://lore.kernel.org/r/20200628155231.71089-2-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/intel/boards/cht_bsw_rt5672.c |   23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

--- a/sound/soc/intel/boards/cht_bsw_rt5672.c
+++ b/sound/soc/intel/boards/cht_bsw_rt5672.c
@@ -253,21 +253,20 @@ static int cht_codec_fixup(struct snd_so
 	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 
 	/*
-	 * Default mode for SSP configuration is TDM 4 slot
+	 * Default mode for SSP configuration is TDM 4 slot. One board/design,
+	 * the Lenovo Miix 2 10 uses not 1 but 2 codecs connected to SSP2. The
+	 * second piggy-backed, output-only codec is inside the keyboard-dock
+	 * (which has extra speakers). Unlike the main rt5672 codec, we cannot
+	 * configure this codec, it is hard coded to use 2 channel 24 bit I2S.
+	 * Since we only support 2 channels anyways, there is no need for TDM
+	 * on any cht-bsw-rt5672 designs. So we simply use I2S 2ch everywhere.
 	 */
-	ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
-				  SND_SOC_DAIFMT_DSP_B |
-				  SND_SOC_DAIFMT_IB_NF |
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
+				  SND_SOC_DAIFMT_I2S     |
+				  SND_SOC_DAIFMT_NB_NF   |
 				  SND_SOC_DAIFMT_CBS_CFS);
 	if (ret < 0) {
-		dev_err(rtd->dev, "can't set format to TDM %d\n", ret);
-		return ret;
-	}
-
-	/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
-	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0xF, 0xF, 4, 24);
-	if (ret < 0) {
-		dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
+		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 		return ret;
 	}
 

[PATCH 5.7 037/179] s390/cpum_cf,perf: change DFLT_CCERROR counter name

[Greg Kroah-Hartman]

From: Thomas Richter <tmricht@linux.ibm.com>

commit 3d3af181d370069861a3be94608464e2ff3682e2 upstream.

Change the counter name DLFT_CCERROR to DLFT_CCFINISH on IBM z15.
This counter counts completed DEFLATE instructions with exit code
0, 1 or 2. Since exit code 0 means success and exit code 1 or 2
indicate errors, change the counter name to avoid confusion.
This counter is incremented each time the DEFLATE instruction
completed regardless if an error was detected or not.

Fixes: d68d5d51dc89 ("s390/cpum_cf: Add new extended counters for IBM z15")
Fixes: e7950166e402 ("perf vendor events s390: Add new deflate counters for IBM z15")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/s390/kernel/perf_cpum_cf_events.c               |    4 ++--
 tools/perf/pmu-events/arch/s390/cf_z15/extended.json |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -292,7 +292,7 @@ CPUMF_EVENT_ATTR(cf_z15, TX_C_TABORT_SPE
 CPUMF_EVENT_ATTR(cf_z15, DFLT_ACCESS, 0x00f7);
 CPUMF_EVENT_ATTR(cf_z15, DFLT_CYCLES, 0x00fc);
 CPUMF_EVENT_ATTR(cf_z15, DFLT_CC, 0x00108);
-CPUMF_EVENT_ATTR(cf_z15, DFLT_CCERROR, 0x00109);
+CPUMF_EVENT_ATTR(cf_z15, DFLT_CCFINISH, 0x00109);
 CPUMF_EVENT_ATTR(cf_z15, MT_DIAG_CYCLES_ONE_THR_ACTIVE, 0x01c0);
 CPUMF_EVENT_ATTR(cf_z15, MT_DIAG_CYCLES_TWO_THR_ACTIVE, 0x01c1);
 
@@ -629,7 +629,7 @@ static struct attribute *cpumcf_z15_pmu_
 	CPUMF_EVENT_PTR(cf_z15, DFLT_ACCESS),
 	CPUMF_EVENT_PTR(cf_z15, DFLT_CYCLES),
 	CPUMF_EVENT_PTR(cf_z15, DFLT_CC),
-	CPUMF_EVENT_PTR(cf_z15, DFLT_CCERROR),
+	CPUMF_EVENT_PTR(cf_z15, DFLT_CCFINISH),
 	CPUMF_EVENT_PTR(cf_z15, MT_DIAG_CYCLES_ONE_THR_ACTIVE),
 	CPUMF_EVENT_PTR(cf_z15, MT_DIAG_CYCLES_TWO_THR_ACTIVE),
 	NULL,
--- a/tools/perf/pmu-events/arch/s390/cf_z15/extended.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z15/extended.json
@@ -380,7 +380,7 @@
 	{
 		"Unit": "CPU-M-CF",
 		"EventCode": "265",
-		"EventName": "DFLT_CCERROR",
+		"EventName": "DFLT_CCFINISH",
 		"BriefDescription": "Increments by one for every DEFLATE CONVERSION CALL instruction executed that ended in Condition Codes 0, 1 or 2",
 		"PublicDescription": "Increments by one for every DEFLATE CONVERSION CALL instruction executed that ended in Condition Codes 0, 1 or 2"
 	},

[PATCH 5.7 038/179] btrfs: fix double free on ulist after backref resolution failure

[Greg Kroah-Hartman]

From: Filipe Manana <fdmanana@suse.com>

commit 580c079b5766ac706f56eec5c79aee4bf929fef6 upstream.

At btrfs_find_all_roots_safe() we allocate a ulist and set the **roots
argument to point to it. However if later we fail due to an error returned
by find_parent_nodes(), we free that ulist but leave a dangling pointer in
the **roots argument. Upon receiving the error, a caller of this function
can attempt to free the same ulist again, resulting in an invalid memory
access.

One such scenario is during qgroup accounting:

btrfs_qgroup_account_extents()

 --> calls btrfs_find_all_roots() passes &new_roots (a stack allocated
     pointer) to btrfs_find_all_roots()

   --> btrfs_find_all_roots() just calls btrfs_find_all_roots_safe()
       passing &new_roots to it

     --> allocates ulist and assigns its address to **roots (which
         points to new_roots from btrfs_qgroup_account_extents())

     --> find_parent_nodes() returns an error, so we free the ulist
         and leave **roots pointing to it after returning

 --> btrfs_qgroup_account_extents() sees btrfs_find_all_roots() returned
     an error and jumps to the label 'cleanup', which just tries to
     free again the same ulist

Stack trace example:

 ------------[ cut here ]------------
 BTRFS: tree first key check failed
 WARNING: CPU: 1 PID: 1763215 at fs/btrfs/disk-io.c:422 btrfs_verify_level_key+0xe0/0x180 [btrfs]
 Modules linked in: dm_snapshot dm_thin_pool (...)
 CPU: 1 PID: 1763215 Comm: fsstress Tainted: G        W         5.8.0-rc3-btrfs-next-64 #1
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 RIP: 0010:btrfs_verify_level_key+0xe0/0x180 [btrfs]
 Code: 28 5b 5d (...)
 RSP: 0018:ffffb89b473779a0 EFLAGS: 00010286
 RAX: 0000000000000000 RBX: ffff90397759bf08 RCX: 0000000000000000
 RDX: 0000000000000001 RSI: 0000000000000027 RDI: 00000000ffffffff
 RBP: ffff9039a419c000 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000000 R11: ffffb89b43301000 R12: 000000000000005e
 R13: ffffb89b47377a2e R14: ffffb89b473779af R15: 0000000000000000
 FS:  00007fc47e1e1000(0000) GS:ffff9039ac200000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007fc47e1df000 CR3: 00000003d9e4e001 CR4: 00000000003606e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  read_block_for_search+0xf6/0x350 [btrfs]
  btrfs_next_old_leaf+0x242/0x650 [btrfs]
  resolve_indirect_refs+0x7cf/0x9e0 [btrfs]
  find_parent_nodes+0x4ea/0x12c0 [btrfs]
  btrfs_find_all_roots_safe+0xbf/0x130 [btrfs]
  btrfs_qgroup_account_extents+0x9d/0x390 [btrfs]
  btrfs_commit_transaction+0x4f7/0xb20 [btrfs]
  btrfs_sync_file+0x3d4/0x4d0 [btrfs]
  do_fsync+0x38/0x70
  __x64_sys_fdatasync+0x13/0x20
  do_syscall_64+0x5c/0xe0
  entry_SYSCALL_64_after_hwframe+0x44/0xa9
 RIP: 0033:0x7fc47e2d72e3
 Code: Bad RIP value.
 RSP: 002b:00007fffa32098c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc47e2d72e3
 RDX: 00007fffa3209830 RSI: 00007fffa3209830 RDI: 0000000000000003
 RBP: 000000000000072e R08: 0000000000000001 R09: 0000000000000003
 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000003e8
 R13: 0000000051eb851f R14: 00007fffa3209970 R15: 00005607c4ac8b50
 irq event stamp: 0
 hardirqs last  enabled at (0): [<0000000000000000>] 0x0
 hardirqs last disabled at (0): [<ffffffffb8eb5e85>] copy_process+0x755/0x1eb0
 softirqs last  enabled at (0): [<ffffffffb8eb5e85>] copy_process+0x755/0x1eb0
 softirqs last disabled at (0): [<0000000000000000>] 0x0
 ---[ end trace 8639237550317b48 ]---
 BTRFS error (device sdc): tree first key mismatch detected, bytenr=62324736 parent_transid=94 key expected=(262,108,1351680) has=(259,108,1921024)
 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI
 CPU: 2 PID: 1763215 Comm: fsstress Tainted: G        W         5.8.0-rc3-btrfs-next-64 #1
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 RIP: 0010:ulist_release+0x14/0x60 [btrfs]
 Code: c7 07 00 (...)
 RSP: 0018:ffffb89b47377d60 EFLAGS: 00010282
 RAX: 6b6b6b6b6b6b6b6b RBX: ffff903959b56b90 RCX: 0000000000000000
 RDX: 0000000000000001 RSI: 0000000000270024 RDI: ffff9036e2adc840
 RBP: ffff9036e2adc848 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000000 R11: 0000000000000000 R12: ffff9036e2adc840
 R13: 0000000000000015 R14: ffff9039a419ccf8 R15: ffff90395d605840
 FS:  00007fc47e1e1000(0000) GS:ffff9039ac600000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f8c1c0a51c8 CR3: 00000003d9e4e004 CR4: 00000000003606e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  ulist_free+0x13/0x20 [btrfs]
  btrfs_qgroup_account_extents+0xf3/0x390 [btrfs]
  btrfs_commit_transaction+0x4f7/0xb20 [btrfs]
  btrfs_sync_file+0x3d4/0x4d0 [btrfs]
  do_fsync+0x38/0x70
  __x64_sys_fdatasync+0x13/0x20
  do_syscall_64+0x5c/0xe0
  entry_SYSCALL_64_after_hwframe+0x44/0xa9
 RIP: 0033:0x7fc47e2d72e3
 Code: Bad RIP value.
 RSP: 002b:00007fffa32098c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc47e2d72e3
 RDX: 00007fffa3209830 RSI: 00007fffa3209830 RDI: 0000000000000003
 RBP: 000000000000072e R08: 0000000000000001 R09: 0000000000000003
 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000003e8
 R13: 0000000051eb851f R14: 00007fffa3209970 R15: 00005607c4ac8b50
 Modules linked in: dm_snapshot dm_thin_pool (...)
 ---[ end trace 8639237550317b49 ]---
 RIP: 0010:ulist_release+0x14/0x60 [btrfs]
 Code: c7 07 00 (...)
 RSP: 0018:ffffb89b47377d60 EFLAGS: 00010282
 RAX: 6b6b6b6b6b6b6b6b RBX: ffff903959b56b90 RCX: 0000000000000000
 RDX: 0000000000000001 RSI: 0000000000270024 RDI: ffff9036e2adc840
 RBP: ffff9036e2adc848 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000000 R11: 0000000000000000 R12: ffff9036e2adc840
 R13: 0000000000000015 R14: ffff9039a419ccf8 R15: ffff90395d605840
 FS:  00007fc47e1e1000(0000) GS:ffff9039ad200000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f6a776f7d40 CR3: 00000003d9e4e002 CR4: 00000000003606e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Fix this by making btrfs_find_all_roots_safe() set *roots to NULL after
it frees the ulist.

Fixes: 8da6d5815c592b ("Btrfs: added btrfs_find_all_roots()")
CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/backref.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1465,6 +1465,7 @@ static int btrfs_find_all_roots_safe(str
 		if (ret < 0 && ret != -ENOENT) {
 			ulist_free(tmp);
 			ulist_free(*roots);
+			*roots = NULL;
 			return ret;
 		}
 		node = ulist_next(tmp, &uiter);

[PATCH 5.7 039/179] btrfs: fix mount failure caused by race with umount

[Greg Kroah-Hartman]

From: Boris Burkov <boris@bur.io>

commit 48cfa61b58a1fee0bc49eef04f8ccf31493b7cdd upstream.

It is possible to cause a btrfs mount to fail by racing it with a slow
umount. The crux of the sequence is generic_shutdown_super not yet
calling sop->put_super before btrfs_mount_root calls btrfs_open_devices.
If that occurs, btrfs_open_devices will decide the opened counter is
non-zero, increment it, and skip resetting fs_devices->total_rw_bytes to
0. From here, mount will call sget which will result in grab_super
trying to take the super block umount semaphore. That semaphore will be
held by the slow umount, so mount will block. Before up-ing the
semaphore, umount will delete the super block, resulting in mount's sget
reliably allocating a new one, which causes the mount path to dutifully
fill it out, and increment total_rw_bytes a second time, which causes
the mount to fail, as we see double the expected bytes.

Here is the sequence laid out in greater detail:

CPU0                                                    CPU1
down_write sb->s_umount
btrfs_kill_super
  kill_anon_super(sb)
    generic_shutdown_super(sb);
      shrink_dcache_for_umount(sb);
      sync_filesystem(sb);
      evict_inodes(sb); // SLOW

                                              btrfs_mount_root
                                                btrfs_scan_one_device
                                                fs_devices = device->fs_devices
                                                fs_info->fs_devices = fs_devices
                                                // fs_devices-opened makes this a no-op
                                                btrfs_open_devices(fs_devices, mode, fs_type)
                                                s = sget(fs_type, test, set, flags, fs_info);
                                                  find sb in s_instances
                                                  grab_super(sb);
                                                    down_write(&s->s_umount); // blocks

      sop->put_super(sb)
        // sb->fs_devices->opened == 2; no-op
      spin_lock(&sb_lock);
      hlist_del_init(&sb->s_instances);
      spin_unlock(&sb_lock);
      up_write(&sb->s_umount);
                                                    return 0;
                                                  retry lookup
                                                  don't find sb in s_instances (deleted by CPU0)
                                                  s = alloc_super
                                                  return s;
                                                btrfs_fill_super(s, fs_devices, data)
                                                  open_ctree // fs_devices total_rw_bytes improperly set!
                                                    btrfs_read_chunk_tree
                                                      read_one_dev // increment total_rw_bytes again!!
                                                      super_total_bytes < fs_devices->total_rw_bytes // ERROR!!!

To fix this, we clear total_rw_bytes from within btrfs_read_chunk_tree
before the calls to read_one_dev, while holding the sb umount semaphore
and the uuid mutex.

To reproduce, it is sufficient to dirty a decent number of inodes, then
quickly umount and mount.

  for i in $(seq 0 500)
  do
    dd if=/dev/zero of="/mnt/foo/$i" bs=1M count=1
  done
  umount /mnt/foo&
  mount /mnt/foo

does the trick for me.

CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Boris Burkov <boris@bur.io>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/volumes.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -7056,6 +7056,14 @@ int btrfs_read_chunk_tree(struct btrfs_f
 	mutex_lock(&fs_info->chunk_mutex);
 
 	/*
+	 * It is possible for mount and umount to race in such a way that
+	 * we execute this code path, but open_fs_devices failed to clear
+	 * total_rw_bytes. We certainly want it cleared before reading the
+	 * device items, so clear it here.
+	 */
+	fs_info->fs_devices->total_rw_bytes = 0;
+
+	/*
 	 * Read all device items, and then all the chunk items. All
 	 * device items are found before any chunk item (their object id
 	 * is smaller than the lowest possible object id for a chunk

[PATCH 5.7 040/179] btrfs: fix page leaks after failure to lock page for delalloc

[Greg Kroah-Hartman]

From: Robbie Ko <robbieko@synology.com>

commit 5909ca110b29aa16b23b52b8de8d3bb1035fd738 upstream.

When locking pages for delalloc, we check if it's dirty and mapping still
matches. If it does not match, we need to return -EAGAIN and release all
pages. Only the current page was put though, iterate over all the
remaining pages too.

CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Robbie Ko <robbieko@synology.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/extent_io.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1999,7 +1999,8 @@ static int __process_pages_contig(struct
 				if (!PageDirty(pages[i]) ||
 				    pages[i]->mapping != mapping) {
 					unlock_page(pages[i]);
-					put_page(pages[i]);
+					for (; i < ret; i++)
+						put_page(pages[i]);
 					err = -EAGAIN;
 					goto out;
 				}

[PATCH 5.7 041/179] mt76: mt76x02: fix handling MCU timeouts during hw restart

[Greg Kroah-Hartman]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit fd6c2dfa49b762ffe773a835ba62fa692df4c1b0 ]

If a MCU timeout occurs before a hw restart completes, another hw restart
is scheduled, and the station state gets corrupted.
To speed up dealing with that, do not issue any MCU commands after the first
timeout, and defer handling timeouts until the reset has completed.
Also ignore errors in MCU commands during start/config to avoid making user
space fail on this condition. If it happens, another restart is scheduled
quickly, and that usually recovers the hardware properly.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76.h     |  1 +
 .../net/wireless/mediatek/mt76/mt76x0/pci.c   |  2 ++
 drivers/net/wireless/mediatek/mt76/mt76x02.h  |  2 ++
 .../net/wireless/mediatek/mt76/mt76x02_mcu.c  |  3 +++
 .../net/wireless/mediatek/mt76/mt76x02_mmio.c | 16 ++++++++++++++++
 .../wireless/mediatek/mt76/mt76x2/pci_init.c  |  1 +
 .../wireless/mediatek/mt76/mt76x2/pci_main.c  | 19 ++++++-------------
 7 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 37641ad14d498..652dd05af16b0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -275,6 +275,7 @@ enum {
 	MT76_STATE_RUNNING,
 	MT76_STATE_MCU_RUNNING,
 	MT76_SCANNING,
+	MT76_RESTART,
 	MT76_RESET,
 	MT76_MCU_RESET,
 	MT76_REMOVED,
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
index 0b520ae08d018..57091d41eb851 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
@@ -29,6 +29,7 @@ static void mt76x0e_stop_hw(struct mt76x02_dev *dev)
 {
 	cancel_delayed_work_sync(&dev->cal_work);
 	cancel_delayed_work_sync(&dev->mt76.mac_work);
+	clear_bit(MT76_RESTART, &dev->mphy.state);
 
 	if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_BUSY,
 		       0, 1000))
@@ -83,6 +84,7 @@ static const struct ieee80211_ops mt76x0e_ops = {
 	.set_coverage_class = mt76x02_set_coverage_class,
 	.set_rts_threshold = mt76x02_set_rts_threshold,
 	.get_antenna = mt76_get_antenna,
+	.reconfig_complete = mt76x02_reconfig_complete,
 };
 
 static int mt76x0e_register_device(struct mt76x02_dev *dev)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h
index 830532b85b58b..6ea210bd3f070 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h
@@ -187,6 +187,8 @@ void mt76x02_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps);
 void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
 			      struct ieee80211_bss_conf *info, u32 changed);
+void mt76x02_reconfig_complete(struct ieee80211_hw *hw,
+			       enum ieee80211_reconfig_type reconfig_type);
 
 struct beacon_bc_data {
 	struct mt76x02_dev *dev;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c
index 5664749ad6c1a..8247611d9b18b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c
@@ -20,6 +20,9 @@ int mt76x02_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data,
 	int ret;
 	u8 seq;
 
+	if (mt76_is_mmio(&dev->mt76) && dev->mcu_timeout)
+		return -EIO;
+
 	skb = mt76x02_mcu_msg_alloc(data, len);
 	if (!skb)
 		return -ENOMEM;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
index 7dcc5d342e9f5..7e389dbccfeb8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
@@ -520,6 +520,7 @@ static void mt76x02_watchdog_reset(struct mt76x02_dev *dev)
 	}
 
 	if (restart) {
+		set_bit(MT76_RESTART, &dev->mphy.state);
 		mt76x02_mcu_function_select(dev, Q_SELECT, 1);
 		ieee80211_restart_hw(dev->mt76.hw);
 	} else {
@@ -528,8 +529,23 @@ static void mt76x02_watchdog_reset(struct mt76x02_dev *dev)
 	}
 }
 
+void mt76x02_reconfig_complete(struct ieee80211_hw *hw,
+			       enum ieee80211_reconfig_type reconfig_type)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
+		return;
+
+	clear_bit(MT76_RESTART, &dev->mphy.state);
+}
+EXPORT_SYMBOL_GPL(mt76x02_reconfig_complete);
+
 static void mt76x02_check_tx_hang(struct mt76x02_dev *dev)
 {
+	if (test_bit(MT76_RESTART, &dev->mphy.state))
+		return;
+
 	if (mt76x02_tx_hang(dev)) {
 		if (++dev->tx_hang_check >= MT_TX_HANG_TH)
 			goto restart;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c
index c69579e5f6479..f27774f574382 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c
@@ -256,6 +256,7 @@ void mt76x2_stop_hardware(struct mt76x02_dev *dev)
 	cancel_delayed_work_sync(&dev->cal_work);
 	cancel_delayed_work_sync(&dev->mt76.mac_work);
 	cancel_delayed_work_sync(&dev->wdt_work);
+	clear_bit(MT76_RESTART, &dev->mphy.state);
 	mt76x02_mcu_set_radio_state(dev, false);
 	mt76x2_mac_stop(dev, false);
 }
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
index 105e5b99b3f9b..a74599f7f729f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
@@ -10,12 +10,9 @@ static int
 mt76x2_start(struct ieee80211_hw *hw)
 {
 	struct mt76x02_dev *dev = hw->priv;
-	int ret;
 
 	mt76x02_mac_start(dev);
-	ret = mt76x2_phy_start(dev);
-	if (ret)
-		return ret;
+	mt76x2_phy_start(dev);
 
 	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
 				     MT_MAC_WORK_INTERVAL);
@@ -35,11 +32,9 @@ mt76x2_stop(struct ieee80211_hw *hw)
 	mt76x2_stop_hardware(dev);
 }
 
-static int
+static void
 mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
 {
-	int ret;
-
 	cancel_delayed_work_sync(&dev->cal_work);
 	tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
 	tasklet_disable(&dev->dfs_pd.dfs_tasklet);
@@ -50,7 +45,7 @@ mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
 	mt76_set_channel(&dev->mphy);
 
 	mt76x2_mac_stop(dev, true);
-	ret = mt76x2_phy_set_channel(dev, chandef);
+	mt76x2_phy_set_channel(dev, chandef);
 
 	mt76x02_mac_cc_reset(dev);
 	mt76x02_dfs_init_params(dev);
@@ -64,15 +59,12 @@ mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
 	tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
 
 	mt76_txq_schedule_all(&dev->mphy);
-
-	return ret;
 }
 
 static int
 mt76x2_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct mt76x02_dev *dev = hw->priv;
-	int ret = 0;
 
 	mutex_lock(&dev->mt76.mutex);
 
@@ -101,11 +93,11 @@ mt76x2_config(struct ieee80211_hw *hw, u32 changed)
 
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 		ieee80211_stop_queues(hw);
-		ret = mt76x2_set_channel(dev, &hw->conf.chandef);
+		mt76x2_set_channel(dev, &hw->conf.chandef);
 		ieee80211_wake_queues(hw);
 	}
 
-	return ret;
+	return 0;
 }
 
 static void
@@ -162,5 +154,6 @@ const struct ieee80211_ops mt76x2_ops = {
 	.set_antenna = mt76x2_set_antenna,
 	.get_antenna = mt76_get_antenna,
 	.set_rts_threshold = mt76x02_set_rts_threshold,
+	.reconfig_complete = mt76x02_reconfig_complete,
 };
 
-- 
2.25.1

[PATCH 5.7 042/179] efi/efivars: Expose RT service availability via efivars abstraction

[Greg Kroah-Hartman]

From: Ard Biesheuvel <ardb@kernel.org>

[ Upstream commit f88814cc2578c121e6edef686365036db72af0ed ]

Commit

  bf67fad19e493b ("efi: Use more granular check for availability for variable services")

introduced a check into the efivarfs, efi-pstore and other drivers that
aborts loading of the module if not all three variable runtime services
(GetVariable, SetVariable and GetNextVariable) are supported. However, this
results in efivarfs being unavailable entirely if only SetVariable support
is missing, which is only needed if you want to make any modifications.
Also, efi-pstore and the sysfs EFI variable interface could be backed by
another implementation of the 'efivars' abstraction, in which case it is
completely irrelevant which services are supported by the EFI firmware.

So make the generic 'efivars' abstraction dependent on the availibility of
the GetVariable and GetNextVariable EFI runtime services, and add a helper
'efivar_supports_writes()' to find out whether the currently active efivars
abstraction supports writes (and wire it up to the availability of
SetVariable for the generic one).

Then, use the efivar_supports_writes() helper to decide whether to permit
efivarfs to be mounted read-write, and whether to enable efi-pstore or the
sysfs EFI variable interface altogether.

Fixes: bf67fad19e493b ("efi: Use more granular check for availability for variable services")
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/efi/efi-pstore.c |  5 +----
 drivers/firmware/efi/efi.c        | 12 ++++++++----
 drivers/firmware/efi/efivars.c    |  5 +----
 drivers/firmware/efi/vars.c       |  6 ++++++
 fs/efivarfs/super.c               |  6 +++---
 include/linux/efi.h               |  1 +
 6 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index c2f1d4e6630b1..feb7fe6f2da76 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -356,10 +356,7 @@ static struct pstore_info efi_pstore_info = {
 
 static __init int efivars_pstore_init(void)
 {
-	if (!efi_rt_services_supported(EFI_RT_SUPPORTED_VARIABLE_SERVICES))
-		return 0;
-
-	if (!efivars_kobject())
+	if (!efivars_kobject() || !efivar_supports_writes())
 		return 0;
 
 	if (efivars_pstore_disable)
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 20a7ba47a7924..99446b3847265 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -176,11 +176,13 @@ static struct efivar_operations generic_ops;
 static int generic_ops_register(void)
 {
 	generic_ops.get_variable = efi.get_variable;
-	generic_ops.set_variable = efi.set_variable;
-	generic_ops.set_variable_nonblocking = efi.set_variable_nonblocking;
 	generic_ops.get_next_variable = efi.get_next_variable;
 	generic_ops.query_variable_store = efi_query_variable_store;
 
+	if (efi_rt_services_supported(EFI_RT_SUPPORTED_SET_VARIABLE)) {
+		generic_ops.set_variable = efi.set_variable;
+		generic_ops.set_variable_nonblocking = efi.set_variable_nonblocking;
+	}
 	return efivars_register(&generic_efivars, &generic_ops, efi_kobj);
 }
 
@@ -382,7 +384,8 @@ static int __init efisubsys_init(void)
 		return -ENOMEM;
 	}
 
-	if (efi_rt_services_supported(EFI_RT_SUPPORTED_VARIABLE_SERVICES)) {
+	if (efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE |
+				      EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME)) {
 		efivar_ssdt_load();
 		error = generic_ops_register();
 		if (error)
@@ -416,7 +419,8 @@ static int __init efisubsys_init(void)
 err_remove_group:
 	sysfs_remove_group(efi_kobj, &efi_subsys_attr_group);
 err_unregister:
-	if (efi_rt_services_supported(EFI_RT_SUPPORTED_VARIABLE_SERVICES))
+	if (efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE |
+				      EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME))
 		generic_ops_unregister();
 err_put:
 	kobject_put(efi_kobj);
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 26528a46d99e9..dcea137142b3c 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -680,11 +680,8 @@ int efivars_sysfs_init(void)
 	struct kobject *parent_kobj = efivars_kobject();
 	int error = 0;
 
-	if (!efi_rt_services_supported(EFI_RT_SUPPORTED_VARIABLE_SERVICES))
-		return -ENODEV;
-
 	/* No efivars has been registered yet */
-	if (!parent_kobj)
+	if (!parent_kobj || !efivar_supports_writes())
 		return 0;
 
 	printk(KERN_INFO "EFI Variables Facility v%s %s\n", EFIVARS_VERSION,
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index 5f2a4d162795c..973eef234b365 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -1229,3 +1229,9 @@ out:
 	return rv;
 }
 EXPORT_SYMBOL_GPL(efivars_unregister);
+
+int efivar_supports_writes(void)
+{
+	return __efivars && __efivars->ops->set_variable;
+}
+EXPORT_SYMBOL_GPL(efivar_supports_writes);
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 12c66f5d92dd2..28bb5689333a5 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -201,6 +201,9 @@ static int efivarfs_fill_super(struct super_block *sb, struct fs_context *fc)
 	sb->s_d_op		= &efivarfs_d_ops;
 	sb->s_time_gran         = 1;
 
+	if (!efivar_supports_writes())
+		sb->s_flags |= SB_RDONLY;
+
 	inode = efivarfs_get_inode(sb, NULL, S_IFDIR | 0755, 0, true);
 	if (!inode)
 		return -ENOMEM;
@@ -252,9 +255,6 @@ static struct file_system_type efivarfs_type = {
 
 static __init int efivarfs_init(void)
 {
-	if (!efi_rt_services_supported(EFI_RT_SUPPORTED_VARIABLE_SERVICES))
-		return -ENODEV;
-
 	if (!efivars_kobject())
 		return -ENODEV;
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 9430d01c0c3d3..650794abfa326 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -991,6 +991,7 @@ int efivars_register(struct efivars *efivars,
 int efivars_unregister(struct efivars *efivars);
 struct kobject *efivars_kobject(void);
 
+int efivar_supports_writes(void);
 int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *),
 		void *data, bool duplicates, struct list_head *head);
 
-- 
2.25.1

[PATCH 5.7 043/179] bnxt_en: Fix race when modifying pause settings.

[Greg Kroah-Hartman]

From: Vasundhara Volam <vasundhara-v.volam@broadcom.com>

[ Upstream commit 163e9ef63641a02de4c95cd921577265c52e1ce2 ]

The driver was modified to not rely on rtnl lock to protect link
settings about 2 years ago.  The pause setting was missed when
making that change.  Fix it by acquiring link_lock mutex before
calling bnxt_hwrm_set_pause().

Fixes: e2dc9b6e38fa ("bnxt_en: Don't use rtnl lock to protect link change logic in workqueue.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 360f9a95c1d50..21cc2bd127603 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1687,8 +1687,11 @@ static int bnxt_set_pauseparam(struct net_device *dev,
 	if (epause->tx_pause)
 		link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_TX;
 
-	if (netif_running(dev))
+	if (netif_running(dev)) {
+		mutex_lock(&bp->link_lock);
 		rc = bnxt_hwrm_set_pause(bp);
+		mutex_unlock(&bp->link_lock);
+	}
 	return rc;
 }
 
-- 
2.25.1

[PATCH 5.7 044/179] bnxt_en: Init ethtool link settings after reading updated PHY configuration.

[Greg Kroah-Hartman]

From: Vasundhara Volam <vasundhara-v.volam@broadcom.com>

[ Upstream commit ca0c753815fe4786b79a80abf0412eb5d52090b8 ]

In a shared port PHY configuration, async event is received when any of the
port modifies the configuration. Ethtool link settings should be
initialised after updated PHY configuration from firmware.

Fixes: b1613e78e98d ("bnxt_en: Add async. event logic for PHY configuration changes.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index b6fb5a1709c01..198bca9c1e2df 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -10362,15 +10362,15 @@ static void bnxt_sp_task(struct work_struct *work)
 				       &bp->sp_event))
 			bnxt_hwrm_phy_qcaps(bp);
 
-		if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT,
-				       &bp->sp_event))
-			bnxt_init_ethtool_link_settings(bp);
-
 		rc = bnxt_update_link(bp, true);
-		mutex_unlock(&bp->link_lock);
 		if (rc)
 			netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
 				   rc);
+
+		if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT,
+				       &bp->sp_event))
+			bnxt_init_ethtool_link_settings(bp);
+		mutex_unlock(&bp->link_lock);
 	}
 	if (test_and_clear_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event)) {
 		int rc;
-- 
2.25.1

[PATCH 5.7 045/179] bnxt_en: Fix completion ring sizing with TPA enabled.

[Greg Kroah-Hartman]

From: Michael Chan <michael.chan@broadcom.com>

[ Upstream commit 27640ce68d21e556b66bc5fa022aacd26e53c947 ]

The current completion ring sizing formula is wrong with TPA enabled.
The formula assumes that the number of TPA completions are bound by the
RX ring size, but that's not true.  TPA_START completions are immediately
recycled so they are not bound by the RX ring size.  We must add
bp->max_tpa to the worst case maximum RX and TPA completions.

The completion ring can overflow because of this mistake.  This will
cause hardware to disable the completion ring when this happens,
leading to RX and TX traffic to stall on that ring.  This issue is
generally exposed only when the RX ring size is set very small.

Fix the formula by adding bp->max_tpa to the number of RX completions
if TPA is enabled.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.");
Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 198bca9c1e2df..1656dc277af41 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3418,7 +3418,7 @@ void bnxt_set_tpa_flags(struct bnxt *bp)
  */
 void bnxt_set_ring_params(struct bnxt *bp)
 {
-	u32 ring_size, rx_size, rx_space;
+	u32 ring_size, rx_size, rx_space, max_rx_cmpl;
 	u32 agg_factor = 0, agg_ring_size = 0;
 
 	/* 8 for CRC and VLAN */
@@ -3474,7 +3474,15 @@ void bnxt_set_ring_params(struct bnxt *bp)
 	bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT);
 	bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1;
 
-	ring_size = bp->rx_ring_size * (2 + agg_factor) + bp->tx_ring_size;
+	max_rx_cmpl = bp->rx_ring_size;
+	/* MAX TPA needs to be added because TPA_START completions are
+	 * immediately recycled, so the TPA completions are not bound by
+	 * the RX ring size.
+	 */
+	if (bp->flags & BNXT_FLAG_TPA)
+		max_rx_cmpl += bp->max_tpa;
+	/* RX and TPA completions are 32-byte, all others are 16-byte */
+	ring_size = max_rx_cmpl * 2 + agg_ring_size + bp->tx_ring_size;
 	bp->cp_ring_size = ring_size;
 
 	bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT);
-- 
2.25.1

[PATCH 5.7 046/179] fpga: dfl: pci: reduce the scope of variable ret

[Greg Kroah-Hartman]

From: Xu Yilun <yilun.xu@intel.com>

[ Upstream commit e19485dc7a0d210b428a249c0595769bd495fb71 ]

This is to fix lkp cppcheck warnings:

 drivers/fpga/dfl-pci.c:230:6: warning: The scope of the variable 'ret' can be reduced. [variableScope]
    int ret = 0;
        ^

 drivers/fpga/dfl-pci.c:230:10: warning: Variable 'ret' is assigned a value that is never used. [unreadVariable]
    int ret = 0;
            ^

Fixes: 3c2760b78f90 ("fpga: dfl: pci: fix return value of cci_pci_sriov_configure")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/fpga/dfl-pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/fpga/dfl-pci.c b/drivers/fpga/dfl-pci.c
index 538755062ab7c..a78c409bf2c44 100644
--- a/drivers/fpga/dfl-pci.c
+++ b/drivers/fpga/dfl-pci.c
@@ -227,7 +227,6 @@ static int cci_pci_sriov_configure(struct pci_dev *pcidev, int num_vfs)
 {
 	struct cci_drvdata *drvdata = pci_get_drvdata(pcidev);
 	struct dfl_fpga_cdev *cdev = drvdata->cdev;
-	int ret = 0;
 
 	if (!num_vfs) {
 		/*
@@ -239,6 +238,8 @@ static int cci_pci_sriov_configure(struct pci_dev *pcidev, int num_vfs)
 		dfl_fpga_cdev_config_ports_pf(cdev);
 
 	} else {
+		int ret;
+
 		/*
 		 * before enable SRIOV, put released ports into VF access mode
 		 * first of all.
-- 
2.25.1

[PATCH 5.7 047/179] fpga: dfl: fix bug in port reset handshake

[Greg Kroah-Hartman]

From: Matthew Gerlach <matthew.gerlach@linux.intel.com>

[ Upstream commit 8614afd689df59d9ce019439389be20bd788a897 ]

When putting the port in reset, driver must wait for the soft reset
acknowledgment bit instead of the soft reset bit.

Fixes: 47c1b19c160f (fpga: dfl: afu: add port ops support)
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/fpga/dfl-afu-main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index 65437b6a68424..77e257c88a1df 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -83,7 +83,8 @@ int __afu_port_disable(struct platform_device *pdev)
 	 * on this port and minimum soft reset pulse width has elapsed.
 	 * Driver polls port_soft_reset_ack to determine if reset done by HW.
 	 */
-	if (readq_poll_timeout(base + PORT_HDR_CTRL, v, v & PORT_CTRL_SFTRST,
+	if (readq_poll_timeout(base + PORT_HDR_CTRL, v,
+			       v & PORT_CTRL_SFTRST_ACK,
 			       RST_POLL_INVL, RST_POLL_TIMEOUT)) {
 		dev_err(&pdev->dev, "timeout, fail to reset device\n");
 		return -ETIMEDOUT;
-- 
2.25.1

[PATCH 5.7 048/179] hippi: Fix a size used in a pci_free_consistent() in an error handling path

[Greg Kroah-Hartman]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 3195c4706b00106aa82c73acd28340fa8fc2bfc1 ]

The size used when calling 'pci_alloc_consistent()' and
'pci_free_consistent()' should match.

Fix it and have it consistent with the corresponding call in 'rr_close()'.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/hippi/rrunner.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hippi/rrunner.c b/drivers/net/hippi/rrunner.c
index 2a6ec53949666..a4b3fce69ecd9 100644
--- a/drivers/net/hippi/rrunner.c
+++ b/drivers/net/hippi/rrunner.c
@@ -1242,7 +1242,7 @@ static int rr_open(struct net_device *dev)
 		rrpriv->info = NULL;
 	}
 	if (rrpriv->rx_ctrl) {
-		pci_free_consistent(pdev, sizeof(struct ring_ctrl),
+		pci_free_consistent(pdev, 256 * sizeof(struct ring_ctrl),
 				    rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
 		rrpriv->rx_ctrl = NULL;
 	}
-- 
2.25.1

[PATCH 5.7 049/179] netfilter: nf_tables: fix nat hook table deletion

[Greg Kroah-Hartman]

From: Florian Westphal <fw@strlen.de>

[ Upstream commit 1e9451cbda456a170518b2bfd643e2cb980880bf ]

sybot came up with following transaction:
 add table ip syz0
 add chain ip syz0 syz2 { type nat hook prerouting priority 0; policy accept; }
 add table ip syz0 { flags dormant; }
 delete chain ip syz0 syz2
 delete table ip syz0

which yields:
hook not found, pf 2 num 0
WARNING: CPU: 0 PID: 6775 at net/netfilter/core.c:413 __nf_unregister_net_hook+0x3e6/0x4a0 net/netfilter/core.c:413
[..]
 nft_unregister_basechain_hooks net/netfilter/nf_tables_api.c:206 [inline]
 nft_table_disable net/netfilter/nf_tables_api.c:835 [inline]
 nf_tables_table_disable net/netfilter/nf_tables_api.c:868 [inline]
 nf_tables_commit+0x32d3/0x4d70 net/netfilter/nf_tables_api.c:7550
 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:486 [inline]
 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:544 [inline]
 nfnetlink_rcv+0x14a5/0x1e50 net/netfilter/nfnetlink.c:562
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]

Problem is that when I added ability to override base hook registration
to make nat basechains register with the nat core instead of netfilter
core, I forgot to update nft_table_disable() to use that instead of
the 'raw' hook register interface.

In syzbot transaction, the basechain is of 'nat' type. Its registered
with the nat core.  The switch to 'dormant mode' attempts to delete from
netfilter core instead.

After updating nft_table_disable/enable to use the correct helper,
nft_(un)register_basechain_hooks can be folded into the only remaining
caller.

Because nft_trans_table_enable() won't do anything when the DORMANT flag
is set, remove the flag first, then re-add it in case re-enablement
fails, else this patch breaks sequence:

add table ip x { flags dormant; }
/* add base chains */
add table ip x

The last 'add' will remove the dormant flags, but won't have any other
effect -- base chains are not registered.
Then, next 'set dormant flag' will create another 'hook not found'
splat.

Reported-by: syzbot+2570f2c036e3da5db176@syzkaller.appspotmail.com
Fixes: 4e25ceb80b58 ("netfilter: nf_tables: allow chain type to override hook register")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_tables_api.c | 41 ++++++++++++-----------------------
 1 file changed, 14 insertions(+), 27 deletions(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 9780bd93b7e49..e1d678af8749b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -188,24 +188,6 @@ static void nft_netdev_unregister_hooks(struct net *net,
 		nf_unregister_net_hook(net, &hook->ops);
 }
 
-static int nft_register_basechain_hooks(struct net *net, int family,
-					struct nft_base_chain *basechain)
-{
-	if (family == NFPROTO_NETDEV)
-		return nft_netdev_register_hooks(net, &basechain->hook_list);
-
-	return nf_register_net_hook(net, &basechain->ops);
-}
-
-static void nft_unregister_basechain_hooks(struct net *net, int family,
-					   struct nft_base_chain *basechain)
-{
-	if (family == NFPROTO_NETDEV)
-		nft_netdev_unregister_hooks(net, &basechain->hook_list);
-	else
-		nf_unregister_net_hook(net, &basechain->ops);
-}
-
 static int nf_tables_register_hook(struct net *net,
 				   const struct nft_table *table,
 				   struct nft_chain *chain)
@@ -223,7 +205,10 @@ static int nf_tables_register_hook(struct net *net,
 	if (basechain->type->ops_register)
 		return basechain->type->ops_register(net, ops);
 
-	return nft_register_basechain_hooks(net, table->family, basechain);
+	if (table->family == NFPROTO_NETDEV)
+		return nft_netdev_register_hooks(net, &basechain->hook_list);
+
+	return nf_register_net_hook(net, &basechain->ops);
 }
 
 static void nf_tables_unregister_hook(struct net *net,
@@ -242,7 +227,10 @@ static void nf_tables_unregister_hook(struct net *net,
 	if (basechain->type->ops_unregister)
 		return basechain->type->ops_unregister(net, ops);
 
-	nft_unregister_basechain_hooks(net, table->family, basechain);
+	if (table->family == NFPROTO_NETDEV)
+		nft_netdev_unregister_hooks(net, &basechain->hook_list);
+	else
+		nf_unregister_net_hook(net, &basechain->ops);
 }
 
 static int nft_trans_table_add(struct nft_ctx *ctx, int msg_type)
@@ -832,8 +820,7 @@ static void nft_table_disable(struct net *net, struct nft_table *table, u32 cnt)
 		if (cnt && i++ == cnt)
 			break;
 
-		nft_unregister_basechain_hooks(net, table->family,
-					       nft_base_chain(chain));
+		nf_tables_unregister_hook(net, table, chain);
 	}
 }
 
@@ -848,8 +835,7 @@ static int nf_tables_table_enable(struct net *net, struct nft_table *table)
 		if (!nft_is_base_chain(chain))
 			continue;
 
-		err = nft_register_basechain_hooks(net, table->family,
-						   nft_base_chain(chain));
+		err = nf_tables_register_hook(net, table, chain);
 		if (err < 0)
 			goto err_register_hooks;
 
@@ -894,11 +880,12 @@ static int nf_tables_updtable(struct nft_ctx *ctx)
 		nft_trans_table_enable(trans) = false;
 	} else if (!(flags & NFT_TABLE_F_DORMANT) &&
 		   ctx->table->flags & NFT_TABLE_F_DORMANT) {
+		ctx->table->flags &= ~NFT_TABLE_F_DORMANT;
 		ret = nf_tables_table_enable(ctx->net, ctx->table);
-		if (ret >= 0) {
-			ctx->table->flags &= ~NFT_TABLE_F_DORMANT;
+		if (ret >= 0)
 			nft_trans_table_enable(trans) = true;
-		}
+		else
+			ctx->table->flags |= NFT_TABLE_F_DORMANT;
 	}
 	if (ret < 0)
 		goto err;
-- 
2.25.1

[PATCH 5.7 050/179] dpaa2-eth: check fsl_mc_get_endpoint for IS_ERR_OR_NULL()

[Greg Kroah-Hartman]

From: Ioana Ciornei <ioana.ciornei@nxp.com>

[ Upstream commit 841eb4012cef84820e5906527b31a854f42b0748 ]

The fsl_mc_get_endpoint() function can return an error or directly a
NULL pointer in case the peer device is not under the root DPRC
container. Treat this case also, otherwise it would lead to a NULL
pointer when trying to access the peer fsl_mc_device.

Fixes: 719479230893 ("dpaa2-eth: add MAC/PHY support through phylink")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index 569e06d2bab21..72fa9c4e058f7 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -3383,7 +3383,7 @@ static int dpaa2_eth_connect_mac(struct dpaa2_eth_priv *priv)
 
 	dpni_dev = to_fsl_mc_device(priv->net_dev->dev.parent);
 	dpmac_dev = fsl_mc_get_endpoint(dpni_dev);
-	if (IS_ERR(dpmac_dev) || dpmac_dev->dev.type != &fsl_mc_bus_dpmac_type)
+	if (IS_ERR_OR_NULL(dpmac_dev) || dpmac_dev->dev.type != &fsl_mc_bus_dpmac_type)
 		return 0;
 
 	if (dpaa2_mac_is_type_fixed(dpmac_dev, priv->mc_io))
-- 
2.25.1

[PATCH 5.7 051/179] vsock/virtio: annotate the_virtio_vsock RCU pointer

[Greg Kroah-Hartman]

From: Stefano Garzarella <sgarzare@redhat.com>

[ Upstream commit f961134a612c793d5901a93d85a29337c74af978 ]

Commit 0deab087b16a ("vsock/virtio: use RCU to avoid use-after-free
on the_virtio_vsock") starts to use RCU to protect 'the_virtio_vsock'
pointer, but we forgot to annotate it.

This patch adds the annotation to fix the following sparse errors:

    net/vmw_vsock/virtio_transport.c:73:17: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:73:17:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:73:17:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:171:17: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:171:17:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:171:17:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:207:17: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:207:17:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:207:17:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:561:13: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:561:13:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:561:13:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:612:9: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:612:9:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:612:9:    struct virtio_vsock *
    net/vmw_vsock/virtio_transport.c:631:9: error: incompatible types in comparison expression (different address spaces):
    net/vmw_vsock/virtio_transport.c:631:9:    struct virtio_vsock [noderef] __rcu *
    net/vmw_vsock/virtio_transport.c:631:9:    struct virtio_vsock *

Fixes: 0deab087b16a ("vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock")
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/vmw_vsock/virtio_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index dfbaf6bd8b1c7..2700a63ab095e 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -22,7 +22,7 @@
 #include <net/af_vsock.h>
 
 static struct workqueue_struct *virtio_vsock_workqueue;
-static struct virtio_vsock *the_virtio_vsock;
+static struct virtio_vsock __rcu *the_virtio_vsock;
 static DEFINE_MUTEX(the_virtio_vsock_mutex); /* protects the_virtio_vsock */
 
 struct virtio_vsock {
-- 
2.25.1

[PATCH 5.7 052/179] ax88172a: fix ax88172a_unbind() failures

[Greg Kroah-Hartman]

From: George Kennedy <george.kennedy@oracle.com>

[ Upstream commit c28d9a285668c799eeae2f7f93e929a6028a4d6d ]

If ax88172a_unbind() fails, make sure that the return code is
less than zero so that cleanup is done properly and avoid UAF.

Fixes: a9a51bd727d1 ("ax88172a: fix information leak on short answers")
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Reported-by: syzbot+4cd84f527bf4a10fc9c1@syzkaller.appspotmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/ax88172a.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c
index 4e514f5d7c6c7..fd3a04d98dc14 100644
--- a/drivers/net/usb/ax88172a.c
+++ b/drivers/net/usb/ax88172a.c
@@ -187,6 +187,7 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf)
 	ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
 	if (ret < ETH_ALEN) {
 		netdev_err(dev->net, "Failed to read MAC address: %d\n", ret);
+		ret = -EIO;
 		goto free;
 	}
 	memcpy(dev->net->dev_addr, buf, ETH_ALEN);
-- 
2.25.1

[PATCH 5.7 053/179] RDMA/mlx5: Use xa_lock_irq when access to SRQ table

[Greg Kroah-Hartman]

From: Maor Gottlieb <maorg@mellanox.com>

[ Upstream commit c3d6057e07a5d15be7c69ea545b3f91877808c96 ]

SRQ table is accessed both from interrupt and process context,
therefore we must use xa_lock_irq.

   inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
   kworker/u17:9/8573   takes:
   ffff8883e3503d30 (&xa->xa_lock#13){?...}-{2:2}, at: mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
   {IN-HARDIRQ-W} state was registered at:
     lock_acquire+0xb9/0x3a0
     _raw_spin_lock+0x25/0x30
     srq_event_notifier+0x2b/0xc0 [mlx5_ib]
     notifier_call_chain+0x45/0x70
     __atomic_notifier_call_chain+0x69/0x100
     forward_event+0x36/0xc0 [mlx5_core]
     notifier_call_chain+0x45/0x70
     __atomic_notifier_call_chain+0x69/0x100
     mlx5_eq_async_int+0xc5/0x160 [mlx5_core]
     notifier_call_chain+0x45/0x70
     __atomic_notifier_call_chain+0x69/0x100
     mlx5_irq_int_handler+0x19/0x30 [mlx5_core]
     __handle_irq_event_percpu+0x43/0x2a0
     handle_irq_event_percpu+0x30/0x70
     handle_irq_event+0x34/0x60
     handle_edge_irq+0x7c/0x1b0
     do_IRQ+0x60/0x110
     ret_from_intr+0x0/0x2a
     default_idle+0x34/0x160
     do_idle+0x1ec/0x220
     cpu_startup_entry+0x19/0x20
     start_secondary+0x153/0x1a0
     secondary_startup_64+0xa4/0xb0
   irq event stamp: 20907
   hardirqs last  enabled at (20907):   _raw_spin_unlock_irq+0x24/0x30
   hardirqs last disabled at (20906):   _raw_spin_lock_irq+0xf/0x40
   softirqs last  enabled at (20746):   __do_softirq+0x2c9/0x436
   softirqs last disabled at (20681):   irq_exit+0xb3/0xc0

   other info that might help us debug this:
    Possible unsafe locking scenario:

          CPU0
          ----
     lock(&xa->xa_lock#13);
     <Interrupt>
       lock(&xa->xa_lock#13);

    *** DEADLOCK ***

   2 locks held by kworker/u17:9/8573:
    #0: ffff888295218d38 ((wq_completion)mlx5_ib_page_fault){+.+.}-{0:0}, at: process_one_work+0x1f1/0x5f0
    #1: ffff888401647e78 ((work_completion)(&pfault->work)){+.+.}-{0:0}, at: process_one_work+0x1f1/0x5f0

   stack backtrace:
   CPU: 0 PID: 8573 Comm: kworker/u17:9 Tainted: GO      5.7.0_for_upstream_min_debug_2020_06_14_11_31_46_41 #1
   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
   Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib]
   Call Trace:
    dump_stack+0x71/0x9b
    mark_lock+0x4f2/0x590
    ? print_shortest_lock_dependencies+0x200/0x200
    __lock_acquire+0xa00/0x1eb0
    lock_acquire+0xb9/0x3a0
    ? mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
    _raw_spin_lock+0x25/0x30
    ? mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
    mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
    mlx5_ib_eqe_pf_action+0x257/0xa30 [mlx5_ib]
    ? process_one_work+0x209/0x5f0
    process_one_work+0x27b/0x5f0
    ? __schedule+0x280/0x7e0
    worker_thread+0x2d/0x3c0
    ? process_one_work+0x5f0/0x5f0
    kthread+0x111/0x130
    ? kthread_park+0x90/0x90
    ret_from_fork+0x24/0x30

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200712102641.15210-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx5/srq_cmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/srq_cmd.c b/drivers/infiniband/hw/mlx5/srq_cmd.c
index 8fc3630a9d4c3..0224231a2e6f8 100644
--- a/drivers/infiniband/hw/mlx5/srq_cmd.c
+++ b/drivers/infiniband/hw/mlx5/srq_cmd.c
@@ -83,11 +83,11 @@ struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn)
 	struct mlx5_srq_table *table = &dev->srq_table;
 	struct mlx5_core_srq *srq;
 
-	xa_lock(&table->array);
+	xa_lock_irq(&table->array);
 	srq = xa_load(&table->array, srqn);
 	if (srq)
 		refcount_inc(&srq->common.refcount);
-	xa_unlock(&table->array);
+	xa_unlock_irq(&table->array);
 
 	return srq;
 }
-- 
2.25.1

[PATCH 5.7 054/179] RDMA/core: Fix race in rdma_alloc_commit_uobject()

[Greg Kroah-Hartman]

From: Leon Romanovsky <leonro@mellanox.com>

[ Upstream commit 0d1fd39bb27e479fb1de3dd4b4c247c7c9a1fabf ]

The FD should not be installed until all of the setup is completed as the
fd_install() transfers ownership of the kref to the FD table. A thread can
race a close() and trigger concurrent rdma_alloc_commit_uobject() and
uverbs_uobject_fd_release() which, at least, triggers a safety WARN_ON:

  WARNING: CPU: 4 PID: 6913 at drivers/infiniband/core/rdma_core.c:768 uverbs_uobject_fd_release+0x202/0x230
  Kernel panic - not syncing: panic_on_warn set ...
  CPU: 4 PID: 6913 Comm: syz-executor.3 Not tainted 5.7.0-rc2 #22
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
  [..]
  RIP: 0010:uverbs_uobject_fd_release+0x202/0x230
  Code: fe 4c 89 e7 e8 af 23 fe ff e9 2a ff ff ff e8 c5 fa 61 fe be 03 00 00 00 4c 89 e7 e8 68 eb f5 fe e9 13 ff ff ff e8 ae fa 61 fe <0f> 0b eb ac e8 e5 aa 3c fe e8 50 2b 86 fe e9 6a fe ff ff e8 46 2b
  RSP: 0018:ffffc90008117d88 EFLAGS: 00010293
  RAX: ffff88810e146580 RBX: 1ffff92001022fb1 RCX: ffffffff82d5b902
  RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88811951b040
  RBP: ffff88811951b000 R08: ffffed10232a3609 R09: ffffed10232a3609
  R10: ffff88811951b043 R11: 0000000000000001 R12: ffff888100a7c600
  R13: ffff888100a7c650 R14: ffffc90008117da8 R15: ffffffff82d5b700
   ? __uverbs_cleanup_ufile+0x270/0x270
   ? uverbs_uobject_fd_release+0x202/0x230
   ? uverbs_uobject_fd_release+0x202/0x230
   ? __uverbs_cleanup_ufile+0x270/0x270
   ? locks_remove_file+0x282/0x3d0
   ? security_file_free+0xaa/0xd0
   __fput+0x2be/0x770
   task_work_run+0x10e/0x1b0
   exit_to_usermode_loop+0x145/0x170
   do_syscall_64+0x2d0/0x390
   ? prepare_exit_to_usermode+0x17a/0x230
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x414da7
  Code: 00 00 0f 05 48 3d 00 f0 ff ff 77 3f f3 c3 0f 1f 44 00 00 53 89 fb 48 83 ec 10 e8 f4 fb ff ff 89 df 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2b 89 d7 89 44 24 0c e8 36 fc ff ff 8b 44 24
  RSP: 002b:00007fff39d379d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
  RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000414da7
  RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003
  RBP: 00007fff39d37a3c R08: 0000000400000000 R09: 0000000400000000
  R10: 00007fff39d37910 R11: 0000000000000293 R12: 0000000000000001
  R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000003

Reorder so that fd_install() is the last thing done in
rdma_alloc_commit_uobject().

Fixes: aba94548c9e4 ("IB/uverbs: Move the FD uobj type struct file allocation to alloc_commit")
Link: https://lore.kernel.org/r/20200716102059.1420681-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/rdma_core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 75bcbc625616e..3ab84fcbaadec 100644
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -638,9 +638,6 @@ void rdma_alloc_commit_uobject(struct ib_uobject *uobj,
 {
 	struct ib_uverbs_file *ufile = attrs->ufile;
 
-	/* alloc_commit consumes the uobj kref */
-	uobj->uapi_object->type_class->alloc_commit(uobj);
-
 	/* kref is held so long as the uobj is on the uobj list. */
 	uverbs_uobject_get(uobj);
 	spin_lock_irq(&ufile->uobjects_lock);
@@ -650,6 +647,9 @@ void rdma_alloc_commit_uobject(struct ib_uobject *uobj,
 	/* matches atomic_set(-1) in alloc_uobj */
 	atomic_set(&uobj->usecnt, 0);
 
+	/* alloc_commit consumes the uobj kref */
+	uobj->uapi_object->type_class->alloc_commit(uobj);
+
 	/* Matches the down_read in rdma_alloc_begin_uobject */
 	up_read(&ufile->hw_destroy_rwsem);
 }
-- 
2.25.1

[PATCH 5.7 055/179] RDMA/cm: Protect access to remote_sidr_table

[Greg Kroah-Hartman]

From: Maor Gottlieb <maorg@mellanox.com>

[ Upstream commit 87c4c774cbef5c68b3df96827c2fb07f1aa80152 ]

cm.lock must be held while accessing remote_sidr_table. This fixes the
below NULL pointer dereference.

  BUG: kernel NULL pointer dereference, address: 0000000000000000
  #PF: supervisor write access in kernel mode
  #PF: error_code(0x0002) - not-present page
  PGD 0 P4D 0
  Oops: 0002 [#1] SMP PTI
  CPU: 2 PID: 7288 Comm: udaddy Not tainted 5.7.0_for_upstream_perf_2020_06_09_15_14_20_38 #1
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
  RIP: 0010:rb_erase+0x10d/0x360
  Code: 00 00 00 48 89 c1 48 89 d0 48 8b 50 08 48 39 ca 74 48 f6 02 01 75 af 48 8b 7a 10 48 89 c1 48 83 c9 01 48 89 78 08 48 89 42 10 <48> 89 0f 48 8b 08 48 89 0a 48 83 e1 fc 48 89 10 0f 84 b1 00 00 00
  RSP: 0018:ffffc90000f77c30 EFLAGS: 00010086
  RAX: ffff8883df27d458 RBX: ffff8883df27da58 RCX: ffff8883df27d459
  RDX: ffff8883d183fa58 RSI: ffffffffa01e8d00 RDI: 0000000000000000
  RBP: ffff8883d62ac800 R08: 0000000000000000 R09: 00000000000000ce
  R10: 000000000000000a R11: 0000000000000000 R12: ffff8883df27da00
  R13: ffffc90000f77c98 R14: 0000000000000130 R15: 0000000000000000
  FS:  00007f009f877740(0000) GS:ffff8883f1a00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 00000003d467e003 CR4: 0000000000160ee0
  Call Trace:
   cm_send_sidr_rep_locked+0x15a/0x1a0 [ib_cm]
   ib_send_cm_sidr_rep+0x2b/0x50 [ib_cm]
   cma_send_sidr_rep+0x8b/0xe0 [rdma_cm]
   __rdma_accept+0x21d/0x2b0 [rdma_cm]
   ? ucma_get_ctx+0x2b/0xe0 [rdma_ucm]
   ? _copy_from_user+0x30/0x60
   ucma_accept+0x13e/0x1e0 [rdma_ucm]
   ucma_write+0xb4/0x130 [rdma_ucm]
   vfs_write+0xad/0x1a0
   ksys_write+0x9d/0xb0
   do_syscall_64+0x48/0x130
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x7f009ef60924
  Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 80 00 00 00 00 8b 05 2a ef 2c 00 48 63 ff 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 55 53 48 89 d5 48 89 f3 48 83
  RSP: 002b:00007fff843edf38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
  RAX: ffffffffffffffda RBX: 000055743042e1d0 RCX: 00007f009ef60924
  RDX: 0000000000000130 RSI: 00007fff843edf40 RDI: 0000000000000003
  RBP: 00007fff843ee0e0 R08: 0000000000000000 R09: 0000557430433090
  R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
  R13: 00007fff843edf40 R14: 000000000000038c R15: 00000000ffffff00
  CR2: 0000000000000000

Fixes: 6a8824a74bc9 ("RDMA/cm: Allow ib_send_cm_sidr_rep() to be done under lock")
Link: https://lore.kernel.org/r/20200716105519.1424266-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/cm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 1c2bf18cda9f6..83b66757c7ae2 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -3723,10 +3723,12 @@ static int cm_send_sidr_rep_locked(struct cm_id_private *cm_id_priv,
 		return ret;
 	}
 	cm_id_priv->id.state = IB_CM_IDLE;
+	spin_lock_irq(&cm.lock);
 	if (!RB_EMPTY_NODE(&cm_id_priv->sidr_id_node)) {
 		rb_erase(&cm_id_priv->sidr_id_node, &cm.remote_sidr_table);
 		RB_CLEAR_NODE(&cm_id_priv->sidr_id_node);
 	}
+	spin_unlock_irq(&cm.lock);
 	return 0;
 }
 
-- 
2.25.1

[PATCH 5.7 056/179] net: fec: fix hardware time stamping by external devices

[Greg Kroah-Hartman]

From: Sergey Organov <sorganov@gmail.com>

[ Upstream commit 340746398b67e3ce5019698748ebaa7adf048114 ]

Fix support for external PTP-aware devices such as DSA or PTP PHY:

Make sure we never time stamp tx packets when hardware time stamping
is disabled.

Check for PTP PHY being in use and then pass ioctls related to time
stamping of Ethernet packets to the PTP PHY rather than handle them
ourselves. In addition, disable our own hardware time stamping in this
case.

Fixes: 6605b730c061 ("FEC: Add time stamping code and a PTP hardware clock")
Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/fec.h      |  1 +
 drivers/net/ethernet/freescale/fec_main.c | 23 +++++++++++++++++------
 drivers/net/ethernet/freescale/fec_ptp.c  | 12 ++++++++++++
 3 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index e74dd1f86bbae..828eb8ce6631c 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -597,6 +597,7 @@ struct fec_enet_private {
 void fec_ptp_init(struct platform_device *pdev, int irq_idx);
 void fec_ptp_stop(struct platform_device *pdev);
 void fec_ptp_start_cyclecounter(struct net_device *ndev);
+void fec_ptp_disable_hwts(struct net_device *ndev);
 int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr);
 int fec_ptp_get(struct net_device *ndev, struct ifreq *ifr);
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index dc6f8763a5d40..bf73bc9bf35b9 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1302,8 +1302,13 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
 			ndev->stats.tx_bytes += skb->len;
 		}
 
-		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) &&
-			fep->bufdesc_ex) {
+		/* NOTE: SKBTX_IN_PROGRESS being set does not imply it's we who
+		 * are to time stamp the packet, so we still need to check time
+		 * stamping enabled flag.
+		 */
+		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS &&
+			     fep->hwts_tx_en) &&
+		    fep->bufdesc_ex) {
 			struct skb_shared_hwtstamps shhwtstamps;
 			struct bufdesc_ex *ebdp = (struct bufdesc_ex *)bdp;
 
@@ -2731,10 +2736,16 @@ static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
 		return -ENODEV;
 
 	if (fep->bufdesc_ex) {
-		if (cmd == SIOCSHWTSTAMP)
-			return fec_ptp_set(ndev, rq);
-		if (cmd == SIOCGHWTSTAMP)
-			return fec_ptp_get(ndev, rq);
+		bool use_fec_hwts = !phy_has_hwtstamp(phydev);
+
+		if (cmd == SIOCSHWTSTAMP) {
+			if (use_fec_hwts)
+				return fec_ptp_set(ndev, rq);
+			fec_ptp_disable_hwts(ndev);
+		} else if (cmd == SIOCGHWTSTAMP) {
+			if (use_fec_hwts)
+				return fec_ptp_get(ndev, rq);
+		}
 	}
 
 	return phy_mii_ioctl(phydev, rq, cmd);
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 945643c026155..f8a592c96beb0 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -452,6 +452,18 @@ static int fec_ptp_enable(struct ptp_clock_info *ptp,
 	return -EOPNOTSUPP;
 }
 
+/**
+ * fec_ptp_disable_hwts - disable hardware time stamping
+ * @ndev: pointer to net_device
+ */
+void fec_ptp_disable_hwts(struct net_device *ndev)
+{
+	struct fec_enet_private *fep = netdev_priv(ndev);
+
+	fep->hwts_tx_en = 0;
+	fep->hwts_rx_en = 0;
+}
+
 int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr)
 {
 	struct fec_enet_private *fep = netdev_priv(ndev);
-- 
2.25.1

[PATCH 5.7 057/179] ASoC: Intel: bytcht_es8316: Add missed put_device()

[Greg Kroah-Hartman]

From: Jing Xiangfeng <jingxiangfeng@huawei.com>

[ Upstream commit b3df80ab6d147d4738be242e1c91e5fdbb6b03ef ]

snd_byt_cht_es8316_mc_probe() misses to call put_device() in an error
path. Add the missed function call to fix it.

Fixes: ba49cf6f8e4a ("ASoC: Intel: bytcht_es8316: Add quirk for inverted jack detect")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200714080918.148196-1-jingxiangfeng@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/bytcht_es8316.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/boards/bytcht_es8316.c b/sound/soc/intel/boards/bytcht_es8316.c
index ddcd070100ef4..b3fd7de594d79 100644
--- a/sound/soc/intel/boards/bytcht_es8316.c
+++ b/sound/soc/intel/boards/bytcht_es8316.c
@@ -543,8 +543,10 @@ static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev)
 
 	if (cnt) {
 		ret = device_add_properties(codec_dev, props);
-		if (ret)
+		if (ret) {
+			put_device(codec_dev);
 			return ret;
+		}
 	}
 
 	devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios);
-- 
2.25.1

[PATCH 5.7 058/179] net: dp83640: fix SIOCSHWTSTAMP to update the struct with actual configuration

[Greg Kroah-Hartman]

From: Sergey Organov <sorganov@gmail.com>

[ Upstream commit 473309fb8372365ad211f425bca760af800e10a7 ]

>From Documentation/networking/timestamping.txt:

  A driver which supports hardware time stamping shall update the
  struct with the actual, possibly more permissive configuration.

Do update the struct passed when we upscale the requested time
stamping mode.

Fixes: cb646e2b02b2 ("ptp: Added a clock driver for the National Semiconductor PHYTER.")
Signed-off-by: Sergey Organov <sorganov@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/dp83640.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index ecbd5e0d685cf..acb0aae607558 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -1260,6 +1260,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
 		dp83640->hwts_rx_en = 1;
 		dp83640->layer = PTP_CLASS_L4;
 		dp83640->version = PTP_CLASS_V1;
+		cfg.rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
 		break;
 	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
@@ -1267,6 +1268,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
 		dp83640->hwts_rx_en = 1;
 		dp83640->layer = PTP_CLASS_L4;
 		dp83640->version = PTP_CLASS_V2;
+		cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
 		break;
 	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
@@ -1274,6 +1276,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
 		dp83640->hwts_rx_en = 1;
 		dp83640->layer = PTP_CLASS_L2;
 		dp83640->version = PTP_CLASS_V2;
+		cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
 		break;
 	case HWTSTAMP_FILTER_PTP_V2_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_SYNC:
@@ -1281,6 +1284,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
 		dp83640->hwts_rx_en = 1;
 		dp83640->layer = PTP_CLASS_L4 | PTP_CLASS_L2;
 		dp83640->version = PTP_CLASS_V2;
+		cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
 		break;
 	default:
 		return -ERANGE;
-- 
2.25.1

[PATCH 5.7 059/179] ieee802154: fix one possible memleak in adf7242_probe

[Greg Kroah-Hartman]

From: Liu Jian <liujian56@huawei.com>

[ Upstream commit 66673f96f0f968b991dc38be06102246919c663c ]

When probe fail, we should destroy the workqueue.

Fixes: 2795e8c25161 ("net: ieee802154: fix a potential NULL pointer dereference")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20200717090121.2143-1-liujian56@huawei.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ieee802154/adf7242.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
index 5a37514e42347..8dbccec6ac866 100644
--- a/drivers/net/ieee802154/adf7242.c
+++ b/drivers/net/ieee802154/adf7242.c
@@ -1262,7 +1262,7 @@ static int adf7242_probe(struct spi_device *spi)
 					     WQ_MEM_RECLAIM);
 	if (unlikely(!lp->wqueue)) {
 		ret = -ENOMEM;
-		goto err_hw_init;
+		goto err_alloc_wq;
 	}
 
 	ret = adf7242_hw_init(lp);
@@ -1294,6 +1294,8 @@ static int adf7242_probe(struct spi_device *spi)
 	return ret;
 
 err_hw_init:
+	destroy_workqueue(lp->wqueue);
+err_alloc_wq:
 	mutex_destroy(&lp->bmux);
 	ieee802154_free_hw(lp->hw);
 
-- 
2.25.1

[PATCH 5.7 060/179] drm: sun4i: hdmi: Fix inverted HPD result

[Greg Kroah-Hartman]

From: Chen-Yu Tsai <wens@csie.org>

[ Upstream commit baa1841eb797eadce6c907bdaed7cd6f01815404 ]

When the extra HPD polling in sun4i_hdmi was removed, the result of
HPD was accidentally inverted.

Fix this by inverting the check.

Fixes: bda8eaa6dee7 ("drm: sun4i: hdmi: Remove extra HPD polling")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200711011030.21997-1-wens@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
index f07e0c32b93a2..4c5072a578bf2 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
@@ -263,7 +263,7 @@ sun4i_hdmi_connector_detect(struct drm_connector *connector, bool force)
 	unsigned long reg;
 
 	reg = readl(hdmi->base + SUN4I_HDMI_HPD_REG);
-	if (reg & SUN4I_HDMI_HPD_HIGH) {
+	if (!(reg & SUN4I_HDMI_HPD_HIGH)) {
 		cec_phys_addr_invalidate(hdmi->cec_adap);
 		return connector_status_disconnected;
 	}
-- 
2.25.1

[PATCH 5.7 061/179] net: smc91x: Fix possible memory leak in smc_drv_probe()

[Greg Kroah-Hartman]

From: Wang Hai <wanghai38@huawei.com>

[ Upstream commit bca9749b1aa23d964d3ab930938af66dbf887f15 ]

If try_toggle_control_gpio() failed in smc_drv_probe(), free_netdev(ndev)
should be called to free the ndev created earlier. Otherwise, a memleak
will occur.

Fixes: 7d2911c43815 ("net: smc91x: Fix gpios for device tree based booting")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/smsc/smc91x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 90410f9d3b1aa..1c4fea9c3ec4c 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2274,7 +2274,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 		ret = try_toggle_control_gpio(&pdev->dev, &lp->power_gpio,
 					      "power", 0, 0, 100);
 		if (ret)
-			return ret;
+			goto out_free_netdev;
 
 		/*
 		 * Optional reset GPIO configured? Minimum 100 ns reset needed
@@ -2283,7 +2283,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 		ret = try_toggle_control_gpio(&pdev->dev, &lp->reset_gpio,
 					      "reset", 0, 0, 100);
 		if (ret)
-			return ret;
+			goto out_free_netdev;
 
 		/*
 		 * Need to wait for optional EEPROM to load, max 750 us according
-- 
2.25.1

[PATCH 5.7 062/179] mlxsw: core: Fix wrong SFP EEPROM reading for upper pages 1-3

[Greg Kroah-Hartman]

From: Vadim Pasternak <vadimp@mellanox.com>

[ Upstream commit 9b8737788af6c76ef93e3161ee2cdc4ddcc034ca ]

Fix wrong reading of upper pages for SFP EEPROM. According to "Memory
Organization" figure in SFF-8472 spec: When reading upper pages 1, 2 and
3 the offset should be set relative to zero and I2C high address 0x51
[1010001X (A2h)] is to be used.

Fixes: a45bfb5a5070 ("mlxsw: core: Extend QSFP EEPROM size for ethtool")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlxsw/core_env.c    | 48 ++++++++++++-------
 1 file changed, 32 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_env.c b/drivers/net/ethernet/mellanox/mlxsw/core_env.c
index 08215fed193d3..a7d86df7123ff 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_env.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_env.c
@@ -45,7 +45,7 @@ static int mlxsw_env_validate_cable_ident(struct mlxsw_core *core, int id,
 static int
 mlxsw_env_query_module_eeprom(struct mlxsw_core *mlxsw_core, int module,
 			      u16 offset, u16 size, void *data,
-			      unsigned int *p_read_size)
+			      bool qsfp, unsigned int *p_read_size)
 {
 	char eeprom_tmp[MLXSW_REG_MCIA_EEPROM_SIZE];
 	char mcia_pl[MLXSW_REG_MCIA_LEN];
@@ -54,6 +54,10 @@ mlxsw_env_query_module_eeprom(struct mlxsw_core *mlxsw_core, int module,
 	int status;
 	int err;
 
+	/* MCIA register accepts buffer size <= 48. Page of size 128 should be
+	 * read by chunks of size 48, 48, 32. Align the size of the last chunk
+	 * to avoid reading after the end of the page.
+	 */
 	size = min_t(u16, size, MLXSW_REG_MCIA_EEPROM_SIZE);
 
 	if (offset < MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH &&
@@ -63,18 +67,25 @@ mlxsw_env_query_module_eeprom(struct mlxsw_core *mlxsw_core, int module,
 
 	i2c_addr = MLXSW_REG_MCIA_I2C_ADDR_LOW;
 	if (offset >= MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH) {
-		page = MLXSW_REG_MCIA_PAGE_GET(offset);
-		offset -= MLXSW_REG_MCIA_EEPROM_UP_PAGE_LENGTH * page;
-		/* When reading upper pages 1, 2 and 3 the offset starts at
-		 * 128. Please refer to "QSFP+ Memory Map" figure in SFF-8436
-		 * specification for graphical depiction.
-		 * MCIA register accepts buffer size <= 48. Page of size 128
-		 * should be read by chunks of size 48, 48, 32. Align the size
-		 * of the last chunk to avoid reading after the end of the
-		 * page.
-		 */
-		if (offset + size > MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH)
-			size = MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH - offset;
+		if (qsfp) {
+			/* When reading upper pages 1, 2 and 3 the offset
+			 * starts at 128. Please refer to "QSFP+ Memory Map"
+			 * figure in SFF-8436 specification for graphical
+			 * depiction.
+			 */
+			page = MLXSW_REG_MCIA_PAGE_GET(offset);
+			offset -= MLXSW_REG_MCIA_EEPROM_UP_PAGE_LENGTH * page;
+			if (offset + size > MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH)
+				size = MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH - offset;
+		} else {
+			/* When reading upper pages 1, 2 and 3 the offset
+			 * starts at 0 and I2C high address is used. Please refer
+			 * refer to "Memory Organization" figure in SFF-8472
+			 * specification for graphical depiction.
+			 */
+			i2c_addr = MLXSW_REG_MCIA_I2C_ADDR_HIGH;
+			offset -= MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH;
+		}
 	}
 
 	mlxsw_reg_mcia_pack(mcia_pl, module, 0, page, offset, size, i2c_addr);
@@ -166,7 +177,7 @@ int mlxsw_env_get_module_info(struct mlxsw_core *mlxsw_core, int module,
 	int err;
 
 	err = mlxsw_env_query_module_eeprom(mlxsw_core, module, 0, offset,
-					    module_info, &read_size);
+					    module_info, false, &read_size);
 	if (err)
 		return err;
 
@@ -197,7 +208,7 @@ int mlxsw_env_get_module_info(struct mlxsw_core *mlxsw_core, int module,
 		/* Verify if transceiver provides diagnostic monitoring page */
 		err = mlxsw_env_query_module_eeprom(mlxsw_core, module,
 						    SFP_DIAGMON, 1, &diag_mon,
-						    &read_size);
+						    false, &read_size);
 		if (err)
 			return err;
 
@@ -225,17 +236,22 @@ int mlxsw_env_get_module_eeprom(struct net_device *netdev,
 	int offset = ee->offset;
 	unsigned int read_size;
 	int i = 0;
+	bool qsfp;
 	int err;
 
 	if (!ee->len)
 		return -EINVAL;
 
 	memset(data, 0, ee->len);
+	/* Validate module identifier value. */
+	err = mlxsw_env_validate_cable_ident(mlxsw_core, module, &qsfp);
+	if (err)
+		return err;
 
 	while (i < ee->len) {
 		err = mlxsw_env_query_module_eeprom(mlxsw_core, module, offset,
 						    ee->len - i, data + i,
-						    &read_size);
+						    qsfp, &read_size);
 		if (err) {
 			netdev_err(netdev, "Eeprom query failed\n");
 			return err;
-- 
2.25.1

[PATCH 5.7 063/179] net: dsa: mv88e6xxx: fix in-band AN link establishment

[Greg Kroah-Hartman]

From: Russell King <rmk+kernel@armlinux.org.uk>

[ Upstream commit fad58190c0ffd72c394722928cd3e919b6e18357 ]

If in-band negotiation or fixed-link modes are specified for a DSA
port, the DSA code will force the link down during initialisation. For
fixed-link mode, this is fine, as phylink will manage the link state.
However, for in-band mode, phylink expects the PCS to detect link,
which will not happen if the link is forced down.

There is a related issue that in in-band mode, the link could come up
while we are making configuration changes, so we should force the link
down prior to reconfiguring the interface mode.

This patch addresses both issues.

Fixes: 3be98b2d5fbc ("net: dsa: Down cpu/dsa ports phylink will control")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 22 +++++++++++++++++++---
 drivers/net/dsa/mv88e6xxx/chip.h |  1 +
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 2b4a723c83065..e065be419a03d 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -664,8 +664,11 @@ static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port,
 				 const struct phylink_link_state *state)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
+	struct mv88e6xxx_port *p;
 	int err;
 
+	p = &chip->ports[port];
+
 	/* FIXME: is this the correct test? If we're in fixed mode on an
 	 * internal port, why should we process this any different from
 	 * PHY mode? On the other hand, the port may be automedia between
@@ -675,10 +678,14 @@ static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port,
 		return;
 
 	mv88e6xxx_reg_lock(chip);
-	/* FIXME: should we force the link down here - but if we do, how
-	 * do we restore the link force/unforce state? The driver layering
-	 * gets in the way.
+	/* In inband mode, the link may come up at any time while the link
+	 * is not forced down. Force the link down while we reconfigure the
+	 * interface mode.
 	 */
+	if (mode == MLO_AN_INBAND && p->interface != state->interface &&
+	    chip->info->ops->port_set_link)
+		chip->info->ops->port_set_link(chip, port, LINK_FORCED_DOWN);
+
 	err = mv88e6xxx_port_config_interface(chip, port, state->interface);
 	if (err && err != -EOPNOTSUPP)
 		goto err_unlock;
@@ -691,6 +698,15 @@ static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port,
 	if (err > 0)
 		err = 0;
 
+	/* Undo the forced down state above after completing configuration
+	 * irrespective of its state on entry, which allows the link to come up.
+	 */
+	if (mode == MLO_AN_INBAND && p->interface != state->interface &&
+	    chip->info->ops->port_set_link)
+		chip->info->ops->port_set_link(chip, port, LINK_UNFORCED);
+
+	p->interface = state->interface;
+
 err_unlock:
 	mv88e6xxx_reg_unlock(chip);
 
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index e5430cf2ad711..6476524e8239d 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -232,6 +232,7 @@ struct mv88e6xxx_port {
 	u64 atu_full_violation;
 	u64 vtu_member_violation;
 	u64 vtu_miss_violation;
+	phy_interface_t interface;
 	u8 cmode;
 	bool mirror_ingress;
 	bool mirror_egress;
-- 
2.25.1

[PATCH 5.7 064/179] arm64: dts: clearfog-gt-8k: fix switch link configuration

[Greg Kroah-Hartman]

From: Russell King <rmk+kernel@armlinux.org.uk>

[ Upstream commit 7c6719a1aaca51ffd7cdf3905e70aa8313f6ef26 ]

The commit below caused a regression for clearfog-gt-8k, where the link
between the switch and the host does not come up.

Investigation revealed two issues:
- MV88E6xxx DSA no longer allows an in-band link to come up as the link
  is programmed to be forced down. Commit "net: dsa: mv88e6xxx: fix
  in-band AN link establishment" addresses this.

- The dts configured dissimilar link modes at each end of the host to
  switch link; the host was configured using a fixed link (so has no
  in-band status) and the switch was configured to expect in-band
  status.

With both issues fixed, the regression is resolved.

Fixes: 34b5e6a33c1a ("net: dsa: mv88e6xxx: Configure MAC when using fixed link")
Reported-by: Martin Rowe <martin.p.rowe@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
index b90d78a5724b2..e32a491e909f1 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts
@@ -454,10 +454,7 @@
 	status = "okay";
 	phy-mode = "2500base-x";
 	phys = <&cp1_comphy5 2>;
-	fixed-link {
-		speed = <2500>;
-		full-duplex;
-	};
+	managed = "in-band-status";
 };
 
 &cp1_spi1 {
-- 
2.25.1

[PATCH 5.7 065/179] bonding: check error value of register_netdevice() immediately

[Greg Kroah-Hartman]

From: Taehee Yoo <ap420073@gmail.com>

[ Upstream commit 544f287b84959203367cd29e16e772717612fab4 ]

If register_netdevice() is failed, net_device should not be used
because variables are uninitialized or freed.
So, the routine should be stopped immediately.
But, bond_create() doesn't check return value of register_netdevice()
immediately. That will result in a panic because of using uninitialized
or freed memory.

Test commands:
    modprobe netdev-notifier-error-inject
    echo -22 > /sys/kernel/debug/notifier-error-inject/netdev/\
actions/NETDEV_REGISTER/error
    modprobe bonding max_bonds=3

Splat looks like:
[  375.028492][  T193] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] SMP DEBUG_PAGEALLOC PTI
[  375.033207][  T193] CPU: 2 PID: 193 Comm: kworker/2:2 Not tainted 5.8.0-rc4+ #645
[  375.036068][  T193] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[  375.039673][  T193] Workqueue: events linkwatch_event
[  375.041557][  T193] RIP: 0010:dev_activate+0x4a/0x340
[  375.043381][  T193] Code: 40 a8 04 0f 85 db 00 00 00 8b 83 08 04 00 00 85 c0 0f 84 0d 01 00 00 31 d2 89 d0 48 8d 04 40 48 c1 e0 07 48 03 83 00 04 00 00 <48> 8b 48 10 f6 41 10 01 75 08 f0 80 a1 a0 01 00 00 fd 48 89 48 08
[  375.050267][  T193] RSP: 0018:ffff9f8facfcfdd8 EFLAGS: 00010202
[  375.052410][  T193] RAX: 6b6b6b6b6b6b6b6b RBX: ffff9f8fae6ea000 RCX: 0000000000000006
[  375.055178][  T193] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9f8fae6ea000
[  375.057762][  T193] RBP: ffff9f8fae6ea000 R08: 0000000000000000 R09: 0000000000000000
[  375.059810][  T193] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9f8facfcfe08
[  375.061892][  T193] R13: ffffffff883587e0 R14: 0000000000000000 R15: ffff9f8fae6ea580
[  375.063931][  T193] FS:  0000000000000000(0000) GS:ffff9f8fbae00000(0000) knlGS:0000000000000000
[  375.066239][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  375.067841][  T193] CR2: 00007f2f542167a0 CR3: 000000012cee6002 CR4: 00000000003606e0
[  375.069657][  T193] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  375.071471][  T193] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  375.073269][  T193] Call Trace:
[  375.074005][  T193]  linkwatch_do_dev+0x4d/0x50
[  375.075052][  T193]  __linkwatch_run_queue+0x10b/0x200
[  375.076244][  T193]  linkwatch_event+0x21/0x30
[  375.077274][  T193]  process_one_work+0x252/0x600
[  375.078379][  T193]  ? process_one_work+0x600/0x600
[  375.079518][  T193]  worker_thread+0x3c/0x380
[  375.080534][  T193]  ? process_one_work+0x600/0x600
[  375.081668][  T193]  kthread+0x139/0x150
[  375.082567][  T193]  ? kthread_park+0x90/0x90
[  375.083567][  T193]  ret_from_fork+0x22/0x30

Fixes: e826eafa65c6 ("bonding: Call netif_carrier_off after register_netdevice")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2e70e43c5df5c..6b40b5ab143a7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4953,15 +4953,19 @@ int bond_create(struct net *net, const char *name)
 	bond_dev->rtnl_link_ops = &bond_link_ops;
 
 	res = register_netdevice(bond_dev);
+	if (res < 0) {
+		free_netdev(bond_dev);
+		rtnl_unlock();
+
+		return res;
+	}
 
 	netif_carrier_off(bond_dev);
 
 	bond_work_init_all(bond);
 
 	rtnl_unlock();
-	if (res < 0)
-		free_netdev(bond_dev);
-	return res;
+	return 0;
 }
 
 static int __net_init bond_net_init(struct net *net)
-- 
2.25.1

[PATCH 5.7 066/179] iwlwifi: Make some Killer Wireless-AC 1550 cards work again

[Greg Kroah-Hartman]

From: Alessio Bonfiglio <alessio.bonfiglio@mail.polimi.it>

[ Upstream commit b5ba46b81c2fef00bcf110777fb6d51befa4a23e ]

Fix the regression introduced by commit c8685937d07f ("iwlwifi: move
pu devices to new table") by adding the ids and the configurations of
two missing Killer 1550 cards in order to configure and let them work
correctly again (following the new table convention).
Resolve bug 208141 ("Wireless ac 9560 not working kernel 5.7.2",
https://bugzilla.kernel.org/show_bug.cgi?id=208141).

Fixes: c8685937d07f ("iwlwifi: move pu devices to new table")
Signed-off-by: Alessio Bonfiglio <alessio.bonfiglio@mail.polimi.it>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200714091911.4442-1-alessio.bonfiglio@mail.polimi.it
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 29971c25dba44..9ea3e56346722 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -577,6 +577,8 @@ static const struct iwl_dev_info iwl_dev_info_table[] = {
 	IWL_DEV_INFO(0x30DC, 0x1552, iwl9560_2ac_cfg_soc, iwl9560_killer_1550i_name),
 	IWL_DEV_INFO(0x31DC, 0x1551, iwl9560_2ac_cfg_soc, iwl9560_killer_1550s_name),
 	IWL_DEV_INFO(0x31DC, 0x1552, iwl9560_2ac_cfg_soc, iwl9560_killer_1550i_name),
+	IWL_DEV_INFO(0xA370, 0x1551, iwl9560_2ac_cfg_soc, iwl9560_killer_1550s_name),
+	IWL_DEV_INFO(0xA370, 0x1552, iwl9560_2ac_cfg_soc, iwl9560_killer_1550i_name),
 
 	IWL_DEV_INFO(0x271C, 0x0214, iwl9260_2ac_cfg, iwl9260_1_name),
 
-- 
2.25.1

[PATCH 5.7 067/179] net: bcmgenet: fix error returns in bcmgenet_probe()

[Greg Kroah-Hartman]

From: Zhang Changzhong <zhangchangzhong@huawei.com>

[ Upstream commit 24a63fe6d45d6527db5ab87bcd1da6921f10e89e ]

The driver forgets to call clk_disable_unprepare() in error path after
a success calling for clk_prepare_enable().

Fix to goto err_clk_disable if clk_prepare_enable() is successful.

Fixes: 99d55638d4b0 ("net: bcmgenet: enable NETIF_F_HIGHDMA flag")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index dde1c23c8e399..7b95bb77ad3bb 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3522,7 +3522,7 @@ static int bcmgenet_probe(struct platform_device *pdev)
 	if (err)
 		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
-		goto err;
+		goto err_clk_disable;
 
 	/* Mii wait queue */
 	init_waitqueue_head(&priv->wq);
-- 
2.25.1

[PATCH 5.7 068/179] dpaa_eth: Fix one possible memleak in dpaa_eth_probe

[Greg Kroah-Hartman]

From: Liu Jian <liujian56@huawei.com>

[ Upstream commit 6790711f8ac5faabc43237c0d05d93db431a1ecc ]

When dma_coerce_mask_and_coherent() fails, the alloced netdev need to be freed.

Fixes: 060ad66f9795 ("dpaa_eth: change DMA device")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Acked-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index 6bfa7575af942..5f82c1f32f09b 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -2938,7 +2938,7 @@ static int dpaa_eth_probe(struct platform_device *pdev)
 						   DMA_BIT_MASK(40));
 	if (err) {
 		netdev_err(net_dev, "dma_coerce_mask_and_coherent() failed\n");
-		return err;
+		goto free_netdev;
 	}
 
 	/* If fsl_fm_max_frm is set to a higher value than the all-common 1500,
-- 
2.25.1

[PATCH 5.7 069/179] mlxsw: destroy workqueue when trap_register in mlxsw_emad_init

[Greg Kroah-Hartman]

From: Liu Jian <liujian56@huawei.com>

[ Upstream commit 5dbaeb87f2b309936be0aeae00cbc9e7f20ab296 ]

When mlxsw_core_trap_register fails in mlxsw_emad_init,
destroy_workqueue() shouled be called to destroy mlxsw_core->emad_wq.

Fixes: d965465b60ba ("mlxsw: core: Fix possible deadlock")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index e9ccd333f61dd..d6d6fe64887b3 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -710,7 +710,7 @@ static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
 	err = mlxsw_core_trap_register(mlxsw_core, &mlxsw_emad_rx_listener,
 				       mlxsw_core);
 	if (err)
-		return err;
+		goto err_trap_register;
 
 	err = mlxsw_core->driver->basic_trap_groups_set(mlxsw_core);
 	if (err)
@@ -722,6 +722,7 @@ static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
 err_emad_trap_set:
 	mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
 				   mlxsw_core);
+err_trap_register:
 	destroy_workqueue(mlxsw_core->emad_wq);
 	return err;
 }
-- 
2.25.1

[PATCH 5.7 070/179] ionic: use offset for ethtool regs data

[Greg Kroah-Hartman]

From: Shannon Nelson <snelson@pensando.io>

[ Upstream commit f85ae16f924f92a370b81b4e77862c1c59882fce ]

Use an offset to write the second half of the regs data into the
second half of the buffer instead of overwriting the first half.

Fixes: 4d03e00a2140 ("ionic: Add initial ethtool support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_ethtool.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
index 22430fa911e2c..63d78519cbc6f 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
@@ -102,15 +102,18 @@ static void ionic_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 			   void *p)
 {
 	struct ionic_lif *lif = netdev_priv(netdev);
+	unsigned int offset;
 	unsigned int size;
 
 	regs->version = IONIC_DEV_CMD_REG_VERSION;
 
+	offset = 0;
 	size = IONIC_DEV_INFO_REG_COUNT * sizeof(u32);
-	memcpy_fromio(p, lif->ionic->idev.dev_info_regs->words, size);
+	memcpy_fromio(p + offset, lif->ionic->idev.dev_info_regs->words, size);
 
+	offset += size;
 	size = IONIC_DEV_CMD_REG_COUNT * sizeof(u32);
-	memcpy_fromio(p, lif->ionic->idev.dev_cmd_regs->words, size);
+	memcpy_fromio(p + offset, lif->ionic->idev.dev_cmd_regs->words, size);
 }
 
 static int ionic_get_link_ksettings(struct net_device *netdev,
-- 
2.25.1

[PATCH 5.7 071/179] ionic: fix up filter locks and debug msgs

[Greg Kroah-Hartman]

From: Shannon Nelson <snelson@pensando.io>

[ Upstream commit cbec2153a9a68d011454960ba84887e46e40b37d ]

Add in a couple of forgotten spinlocks and fix up some of
the debug messages around filter management.

Fixes: c1e329ebec8d ("ionic: Add management of rx filters")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 17 +++++++----------
 .../ethernet/pensando/ionic/ionic_rx_filter.c   |  5 +++++
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 7fea60fc3e089..48aa502e4bd3d 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -849,8 +849,7 @@ static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr)
 	if (f)
 		return 0;
 
-	netdev_dbg(lif->netdev, "rx_filter add ADDR %pM (id %d)\n", addr,
-		   ctx.comp.rx_filter_add.filter_id);
+	netdev_dbg(lif->netdev, "rx_filter add ADDR %pM\n", addr);
 
 	memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN);
 	err = ionic_adminq_post_wait(lif, &ctx);
@@ -879,6 +878,9 @@ static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr)
 		return -ENOENT;
 	}
 
+	netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n",
+		   addr, f->filter_id);
+
 	ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id);
 	ionic_rx_filter_free(lif, f);
 	spin_unlock_bh(&lif->rx_filters.lock);
@@ -887,9 +889,6 @@ static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr)
 	if (err && err != -EEXIST)
 		return err;
 
-	netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n", addr,
-		   ctx.cmd.rx_filter_del.filter_id);
-
 	return 0;
 }
 
@@ -1341,13 +1340,11 @@ static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
 	};
 	int err;
 
+	netdev_dbg(netdev, "rx_filter add VLAN %d\n", vid);
 	err = ionic_adminq_post_wait(lif, &ctx);
 	if (err)
 		return err;
 
-	netdev_dbg(netdev, "rx_filter add VLAN %d (id %d)\n", vid,
-		   ctx.comp.rx_filter_add.filter_id);
-
 	return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx);
 }
 
@@ -1372,8 +1369,8 @@ static int ionic_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
 		return -ENOENT;
 	}
 
-	netdev_dbg(netdev, "rx_filter del VLAN %d (id %d)\n", vid,
-		   le32_to_cpu(ctx.cmd.rx_filter_del.filter_id));
+	netdev_dbg(netdev, "rx_filter del VLAN %d (id %d)\n",
+		   vid, f->filter_id);
 
 	ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id);
 	ionic_rx_filter_free(lif, f);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
index 80eeb7696e014..fb9d828812bd2 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
@@ -69,10 +69,12 @@ int ionic_rx_filters_init(struct ionic_lif *lif)
 
 	spin_lock_init(&lif->rx_filters.lock);
 
+	spin_lock_bh(&lif->rx_filters.lock);
 	for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
 		INIT_HLIST_HEAD(&lif->rx_filters.by_hash[i]);
 		INIT_HLIST_HEAD(&lif->rx_filters.by_id[i]);
 	}
+	spin_unlock_bh(&lif->rx_filters.lock);
 
 	return 0;
 }
@@ -84,11 +86,13 @@ void ionic_rx_filters_deinit(struct ionic_lif *lif)
 	struct hlist_node *tmp;
 	unsigned int i;
 
+	spin_lock_bh(&lif->rx_filters.lock);
 	for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
 		head = &lif->rx_filters.by_id[i];
 		hlist_for_each_entry_safe(f, tmp, head, by_id)
 			ionic_rx_filter_free(lif, f);
 	}
+	spin_unlock_bh(&lif->rx_filters.lock);
 }
 
 int ionic_rx_filter_save(struct ionic_lif *lif, u32 flow_id, u16 rxq_index,
@@ -124,6 +128,7 @@ int ionic_rx_filter_save(struct ionic_lif *lif, u32 flow_id, u16 rxq_index,
 	f->filter_id = le32_to_cpu(ctx->comp.rx_filter_add.filter_id);
 	f->rxq_index = rxq_index;
 	memcpy(&f->cmd, ac, sizeof(f->cmd));
+	netdev_dbg(lif->netdev, "rx_filter add filter_id %d\n", f->filter_id);
 
 	INIT_HLIST_NODE(&f->by_hash);
 	INIT_HLIST_NODE(&f->by_id);
-- 
2.25.1

[PATCH 5.7 072/179] ionic: update filter id after replay

[Greg Kroah-Hartman]

From: Shannon Nelson <snelson@pensando.io>

[ Upstream commit cc4428c4de8c31f12e4690d0409e0432fe05702f ]

When we replay the rx filters after a fw-upgrade we get new
filter_id values from the FW, which we need to save and update
in our local filter list.  This allows us to delete the filters
with the correct filter_id when we're done.

Fixes: 7e4d47596b68 ("ionic: replay filters after fw upgrade")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/pensando/ionic/ionic_rx_filter.c | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
index fb9d828812bd2..cd0076fc3044e 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c
@@ -21,13 +21,16 @@ void ionic_rx_filter_free(struct ionic_lif *lif, struct ionic_rx_filter *f)
 void ionic_rx_filter_replay(struct ionic_lif *lif)
 {
 	struct ionic_rx_filter_add_cmd *ac;
+	struct hlist_head new_id_list;
 	struct ionic_admin_ctx ctx;
 	struct ionic_rx_filter *f;
 	struct hlist_head *head;
 	struct hlist_node *tmp;
+	unsigned int key;
 	unsigned int i;
 	int err;
 
+	INIT_HLIST_HEAD(&new_id_list);
 	ac = &ctx.cmd.rx_filter_add;
 
 	for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
@@ -58,9 +61,30 @@ void ionic_rx_filter_replay(struct ionic_lif *lif)
 						    ac->mac.addr);
 					break;
 				}
+				spin_lock_bh(&lif->rx_filters.lock);
+				ionic_rx_filter_free(lif, f);
+				spin_unlock_bh(&lif->rx_filters.lock);
+
+				continue;
 			}
+
+			/* remove from old id list, save new id in tmp list */
+			spin_lock_bh(&lif->rx_filters.lock);
+			hlist_del(&f->by_id);
+			spin_unlock_bh(&lif->rx_filters.lock);
+			f->filter_id = le32_to_cpu(ctx.comp.rx_filter_add.filter_id);
+			hlist_add_head(&f->by_id, &new_id_list);
 		}
 	}
+
+	/* rebuild the by_id hash lists with the new filter ids */
+	spin_lock_bh(&lif->rx_filters.lock);
+	hlist_for_each_entry_safe(f, tmp, &new_id_list, by_id) {
+		key = f->filter_id & IONIC_RX_FILTER_HLISTS_MASK;
+		head = &lif->rx_filters.by_id[key];
+		hlist_add_head(&f->by_id, head);
+	}
+	spin_unlock_bh(&lif->rx_filters.lock);
 }
 
 int ionic_rx_filters_init(struct ionic_lif *lif)
-- 
2.25.1

[PATCH 5.7 073/179] ionic: keep rss hash after fw update

[Greg Kroah-Hartman]

From: Shannon Nelson <snelson@pensando.io>

[ Upstream commit bdff46665ee655600d0fe2a0e5f62ec7853d3b22 ]

Make sure the RSS hash key is kept across a fw update by not
de-initing it when an update is happening.

Fixes: c672412f6172 ("ionic: remove lifs on fw reset")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 48aa502e4bd3d..08ab6dafc66c5 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -2227,11 +2227,10 @@ static void ionic_lif_deinit(struct ionic_lif *lif)
 		cancel_work_sync(&lif->deferred.work);
 		cancel_work_sync(&lif->tx_timeout_work);
 		ionic_rx_filters_deinit(lif);
+		if (lif->netdev->features & NETIF_F_RXHASH)
+			ionic_lif_rss_deinit(lif);
 	}
 
-	if (lif->netdev->features & NETIF_F_RXHASH)
-		ionic_lif_rss_deinit(lif);
-
 	napi_disable(&lif->adminqcq->napi);
 	ionic_lif_qcq_deinit(lif, lif->notifyqcq);
 	ionic_lif_qcq_deinit(lif, lif->adminqcq);
-- 
2.25.1

[PATCH 5.7 074/179] ionic: use mutex to protect queue operations

[Greg Kroah-Hartman]

From: Shannon Nelson <snelson@pensando.io>

[ Upstream commit 0925e9db4dc86daf666d9a3d53c7db14ac6d5d00 ]

The ionic_wait_on_bit_lock() was a open-coded mutex knock-off
used only for protecting the queue reset operations, and there
was no reason not to use the real thing.  We can use the lock
more correctly and to better protect the queue stop and start
operations from cross threading.  We can also remove a useless
and expensive bit operation from the Rx path.

This fixes a case found where the link_status_check from a link
flap could run into an MTU change and cause a crash.

Fixes: beead698b173 ("ionic: Add the basic NDO callbacks for netdev support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/pensando/ionic/ionic_lif.c   | 28 +++++++++++--------
 .../net/ethernet/pensando/ionic/ionic_lif.h   |  8 +-----
 .../net/ethernet/pensando/ionic/ionic_txrx.c  |  6 ----
 3 files changed, 17 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 08ab6dafc66c5..2c3e9ef22129c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -85,8 +85,7 @@ static void ionic_link_status_check(struct ionic_lif *lif)
 	u16 link_status;
 	bool link_up;
 
-	if (!test_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state) ||
-	    test_bit(IONIC_LIF_F_QUEUE_RESET, lif->state))
+	if (!test_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state))
 		return;
 
 	if (lif->ionic->is_mgmt_nic)
@@ -106,16 +105,22 @@ static void ionic_link_status_check(struct ionic_lif *lif)
 			netif_carrier_on(netdev);
 		}
 
-		if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev))
+		if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev)) {
+			mutex_lock(&lif->queue_lock);
 			ionic_start_queues(lif);
+			mutex_unlock(&lif->queue_lock);
+		}
 	} else {
 		if (netif_carrier_ok(netdev)) {
 			netdev_info(netdev, "Link down\n");
 			netif_carrier_off(netdev);
 		}
 
-		if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev))
+		if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev)) {
+			mutex_lock(&lif->queue_lock);
 			ionic_stop_queues(lif);
+			mutex_unlock(&lif->queue_lock);
+		}
 	}
 
 	clear_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state);
@@ -1948,16 +1953,13 @@ int ionic_reset_queues(struct ionic_lif *lif, ionic_reset_cb cb, void *arg)
 	bool running;
 	int err = 0;
 
-	err = ionic_wait_for_bit(lif, IONIC_LIF_F_QUEUE_RESET);
-	if (err)
-		return err;
-
+	mutex_lock(&lif->queue_lock);
 	running = netif_running(lif->netdev);
 	if (running) {
 		netif_device_detach(lif->netdev);
 		err = ionic_stop(lif->netdev);
 		if (err)
-			goto reset_out;
+			return err;
 	}
 
 	if (cb)
@@ -1967,9 +1969,7 @@ int ionic_reset_queues(struct ionic_lif *lif, ionic_reset_cb cb, void *arg)
 		err = ionic_open(lif->netdev);
 		netif_device_attach(lif->netdev);
 	}
-
-reset_out:
-	clear_bit(IONIC_LIF_F_QUEUE_RESET, lif->state);
+	mutex_unlock(&lif->queue_lock);
 
 	return err;
 }
@@ -2108,7 +2108,9 @@ static void ionic_lif_handle_fw_down(struct ionic_lif *lif)
 
 	if (test_bit(IONIC_LIF_F_UP, lif->state)) {
 		dev_info(ionic->dev, "Surprise FW stop, stopping queues\n");
+		mutex_lock(&lif->queue_lock);
 		ionic_stop_queues(lif);
+		mutex_unlock(&lif->queue_lock);
 	}
 
 	if (netif_running(lif->netdev)) {
@@ -2235,6 +2237,7 @@ static void ionic_lif_deinit(struct ionic_lif *lif)
 	ionic_lif_qcq_deinit(lif, lif->notifyqcq);
 	ionic_lif_qcq_deinit(lif, lif->adminqcq);
 
+	mutex_destroy(&lif->queue_lock);
 	ionic_lif_reset(lif);
 }
 
@@ -2410,6 +2413,7 @@ static int ionic_lif_init(struct ionic_lif *lif)
 		return err;
 
 	lif->hw_index = le16_to_cpu(comp.hw_index);
+	mutex_init(&lif->queue_lock);
 
 	/* now that we have the hw_index we can figure out our doorbell page */
 	lif->dbid_count = le32_to_cpu(lif->ionic->ident.dev.ndbpgs_per_lif);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
index 2c65cf6300dbd..90992614f136e 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
@@ -126,7 +126,6 @@ enum ionic_lif_state_flags {
 	IONIC_LIF_F_SW_DEBUG_STATS,
 	IONIC_LIF_F_UP,
 	IONIC_LIF_F_LINK_CHECK_REQUESTED,
-	IONIC_LIF_F_QUEUE_RESET,
 	IONIC_LIF_F_FW_RESET,
 
 	/* leave this as last */
@@ -145,6 +144,7 @@ struct ionic_lif {
 	unsigned int hw_index;
 	unsigned int kern_pid;
 	u64 __iomem *kern_dbpage;
+	struct mutex queue_lock;	/* lock for queue structures */
 	spinlock_t adminq_lock;		/* lock for AdminQ operations */
 	struct ionic_qcq *adminqcq;
 	struct ionic_qcq *notifyqcq;
@@ -191,12 +191,6 @@ struct ionic_lif {
 #define lif_to_txq(lif, i)	(&lif_to_txqcq((lif), i)->q)
 #define lif_to_rxq(lif, i)	(&lif_to_txqcq((lif), i)->q)
 
-/* return 0 if successfully set the bit, else non-zero */
-static inline int ionic_wait_for_bit(struct ionic_lif *lif, int bitname)
-{
-	return wait_on_bit_lock(lif->state, bitname, TASK_INTERRUPTIBLE);
-}
-
 static inline u32 ionic_coal_usec_to_hw(struct ionic *ionic, u32 usecs)
 {
 	u32 mult = le32_to_cpu(ionic->ident.dev.intr_coal_mult);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index d233b6e77b1ee..ce8e246cda07d 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -157,12 +157,6 @@ static void ionic_rx_clean(struct ionic_queue *q, struct ionic_desc_info *desc_i
 		return;
 	}
 
-	/* no packet processing while resetting */
-	if (unlikely(test_bit(IONIC_LIF_F_QUEUE_RESET, q->lif->state))) {
-		stats->dropped++;
-		return;
-	}
-
 	stats->pkts++;
 	stats->bytes += le16_to_cpu(comp->len);
 
-- 
2.25.1

[PATCH 5.7 075/179] crypto/chtls: fix tls alert messages corrupted by tls data

[Greg Kroah-Hartman]

From: Vinay Kumar Yadav <vinay.yadav@chelsio.com>

[ Upstream commit c271042eb6a031d1333cf57422ec1d20726901ab ]

When tls data skb is pending for Tx and tls alert comes , It
is wrongly overwrite the record type of tls data to tls alert
record type. fix the issue correcting it.

v1->v2:
- Correct submission tree.
- Add fixes tag.

Fixes: 6919a8264a32 ("Crypto/chtls: add/delete TLS header in driver")
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/chelsio/chtls/chtls_io.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/chelsio/chtls/chtls_io.c b/drivers/crypto/chelsio/chtls/chtls_io.c
index e1401d9cc756c..2e9acae1cba3b 100644
--- a/drivers/crypto/chelsio/chtls/chtls_io.c
+++ b/drivers/crypto/chelsio/chtls/chtls_io.c
@@ -1052,14 +1052,15 @@ int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 							  &record_type);
 				if (err)
 					goto out_err;
+
+				/* Avoid appending tls handshake, alert to tls data */
+				if (skb)
+					tx_skb_finalize(skb);
 			}
 
 			recordsz = size;
 			csk->tlshws.txleft = recordsz;
 			csk->tlshws.type = record_type;
-
-			if (skb)
-				ULP_SKB_CB(skb)->ulp.tls.type = record_type;
 		}
 
 		if (!skb || (ULP_SKB_CB(skb)->flags & ULPCB_FLAG_NO_APPEND) ||
-- 
2.25.1

[PATCH 5.7 076/179] net: ag71xx: add missed clk_disable_unprepare in error path of probe

[Greg Kroah-Hartman]

From: Huang Guobin <huangguobin4@huawei.com>

[ Upstream commit befc113c56a76ae7be3986034a0e476d3385e265 ]

The ag71xx_mdio_probe() forgets to call clk_disable_unprepare() when
of_reset_control_get_exclusive() failed. Add the missed call to fix it.

Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Huang Guobin <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/atheros/ag71xx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index 02b7705393ca7..37a1cf63d9f7b 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -556,7 +556,8 @@ static int ag71xx_mdio_probe(struct ag71xx *ag)
 	ag->mdio_reset = of_reset_control_get_exclusive(np, "mdio");
 	if (IS_ERR(ag->mdio_reset)) {
 		netif_err(ag, probe, ndev, "Failed to get reset mdio.\n");
-		return PTR_ERR(ag->mdio_reset);
+		err = PTR_ERR(ag->mdio_reset);
+		goto mdio_err_put_clk;
 	}
 
 	mii_bus->name = "ag71xx_mdio";
-- 
2.25.1

[PATCH 5.7 077/179] RDMA/mlx5: Prevent prefetch from racing with implicit destruction

[Greg Kroah-Hartman]

From: Jason Gunthorpe <jgg@nvidia.com>

[ Upstream commit a862192e9227ad46e0447fd0a03869ba1b30d16f ]

Prefetch work in mlx5_ib_prefetch_mr_work can be queued and able to run
concurrently with destruction of the implicit MR. The num_deferred_work
was intended to serialize this, but there is a race:

       CPU0                                          CPU1

    mlx5_ib_free_implicit_mr()
      xa_erase(odp_mkeys)
      synchronize_srcu()
      __xa_erase(implicit_children)
                                      mlx5_ib_prefetch_mr_work()
                                        pagefault_mr()
                                         pagefault_implicit_mr()
                                          implicit_get_child_mr()
                                           xa_cmpxchg()
                                        atomic_dec_and_test(num_deferred_mr)
      wait_event(imr->q_deferred_work)
      ib_umem_odp_release(odp_imr)
        kfree(odp_imr)

At this point in mlx5_ib_free_implicit_mr() the implicit_children list is
supposed to be empty forever so that destroy_unused_implicit_child_mr()
and related are not and will not be running.

Since it is not empty the destroy_unused_implicit_child_mr() flow ends up
touching deallocated memory as mlx5_ib_free_implicit_mr() already tore down the
imr parent.

The solution is to flush out the prefetch wq by driving num_deferred_work
to zero after creation of new prefetch work is blocked.

Fixes: 5256edcb98a1 ("RDMA/mlx5: Rework implicit ODP destroy")
Link: https://lore.kernel.org/r/20200719065435.130722-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx5/odp.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 3de7606d4a1a7..bdeb6500a9191 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -601,6 +601,23 @@ void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *imr)
 	 */
 	synchronize_srcu(&dev->odp_srcu);
 
+	/*
+	 * All work on the prefetch list must be completed, xa_erase() prevented
+	 * new work from being created.
+	 */
+	wait_event(imr->q_deferred_work, !atomic_read(&imr->num_deferred_work));
+
+	/*
+	 * At this point it is forbidden for any other thread to enter
+	 * pagefault_mr() on this imr. It is already forbidden to call
+	 * pagefault_mr() on an implicit child. Due to this additions to
+	 * implicit_children are prevented.
+	 */
+
+	/*
+	 * Block destroy_unused_implicit_child_mr() from incrementing
+	 * num_deferred_work.
+	 */
 	xa_lock(&imr->implicit_children);
 	xa_for_each (&imr->implicit_children, idx, mtt) {
 		__xa_erase(&imr->implicit_children, idx);
@@ -609,9 +626,8 @@ void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *imr)
 	xa_unlock(&imr->implicit_children);
 
 	/*
-	 * num_deferred_work can only be incremented inside the odp_srcu, or
-	 * under xa_lock while the child is in the xarray. Thus at this point
-	 * it is only decreasing, and all work holding it is now on the wq.
+	 * Wait for any concurrent destroy_unused_implicit_child_mr() to
+	 * complete.
 	 */
 	wait_event(imr->q_deferred_work, !atomic_read(&imr->num_deferred_work));
 
-- 
2.25.1

[PATCH 5.7 078/179] net: hns3: fix for not calculating TX BD send size correctly

[Greg Kroah-Hartman]

From: Yunsheng Lin <linyunsheng@huawei.com>

[ Upstream commit 48ae74c9d89f827b39b5c07a1f02fc13637a3cd6 ]

With GRO and fraglist support, the SKB can be aggregated to
a total size of 65535, and when that SKB is forwarded through
a bridge, the size of the SKB may be pushed to exceed the size
of 65535 when br_dev_queue_push_xmit() is called.

The max send size of BD supported by the HW is 65535, when a SKB
with a headlen of over 65535 is sent to the driver, the driver
needs to use multi BD to send the linear data, and the send size
of the last BD is calculated incorrectly by the driver who is
using '&' operation, which causes a TX error.

Use '%' operation to fix this problem.

Fixes: 3fe13ed95dd3 ("net: hns3: avoid mult + div op in critical data path")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +-
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 3003eecd5263b..5dab84aa3afd5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1140,7 +1140,7 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 	}
 
 	frag_buf_num = hns3_tx_bd_count(size);
-	sizeoflast = size & HNS3_TX_LAST_SIZE_M;
+	sizeoflast = size % HNS3_MAX_BD_SIZE;
 	sizeoflast = sizeoflast ? sizeoflast : HNS3_MAX_BD_SIZE;
 
 	/* When frag size is bigger than hardware limit, split this frag */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index abefd7a179f7b..e6b29a35cdb24 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -186,8 +186,6 @@ enum hns3_nic_state {
 #define HNS3_TXD_MSS_S				0
 #define HNS3_TXD_MSS_M				(0x3fff << HNS3_TXD_MSS_S)
 
-#define HNS3_TX_LAST_SIZE_M			0xffff
-
 #define HNS3_VECTOR_TX_IRQ			BIT_ULL(0)
 #define HNS3_VECTOR_RX_IRQ			BIT_ULL(1)
 
-- 
2.25.1

[PATCH 5.7 079/179] net: hns3: fix error handling for desc filling

[Greg Kroah-Hartman]

From: Yunsheng Lin <linyunsheng@huawei.com>

[ Upstream commit 8ceca59fb3ed48a693171bd571c4fcbd555b7f1f ]

The content of the TX desc is automatically cleared by the HW
when the HW has sent out the packet to the wire. When desc filling
fails in hns3_nic_net_xmit(), it will call hns3_clear_desc() to do
the error handling, which miss zeroing of the TX desc and the
checking if a unmapping is needed.

So add the zeroing and checking in hns3_clear_desc() to avoid the
above problem. Also add DESC_TYPE_UNKNOWN to indicate the info in
desc_cb is not valid, because hns3_nic_reclaim_desc() may treat
the desc_cb->type of zero as packet and add to the sent pkt
statistics accordingly.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h     | 1 +
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 5587605d6deb2..cc45662f77f04 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -77,6 +77,7 @@
 	((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)->desc_num)
 
 enum hns_desc_type {
+	DESC_TYPE_UNKNOWN,
 	DESC_TYPE_SKB,
 	DESC_TYPE_FRAGLIST_SKB,
 	DESC_TYPE_PAGE,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 5dab84aa3afd5..df1cb0441183c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1351,6 +1351,10 @@ static void hns3_clear_desc(struct hns3_enet_ring *ring, int next_to_use_orig)
 	unsigned int i;
 
 	for (i = 0; i < ring->desc_num; i++) {
+		struct hns3_desc *desc = &ring->desc[ring->next_to_use];
+
+		memset(desc, 0, sizeof(*desc));
+
 		/* check if this is where we started */
 		if (ring->next_to_use == next_to_use_orig)
 			break;
@@ -1358,6 +1362,9 @@ static void hns3_clear_desc(struct hns3_enet_ring *ring, int next_to_use_orig)
 		/* rollback one */
 		ring_ptr_move_bw(ring, next_to_use);
 
+		if (!ring->desc_cb[ring->next_to_use].dma)
+			continue;
+
 		/* unmap the descriptor dma address */
 		if (ring->desc_cb[ring->next_to_use].type == DESC_TYPE_SKB ||
 		    ring->desc_cb[ring->next_to_use].type ==
@@ -1374,6 +1381,7 @@ static void hns3_clear_desc(struct hns3_enet_ring *ring, int next_to_use_orig)
 
 		ring->desc_cb[ring->next_to_use].length = 0;
 		ring->desc_cb[ring->next_to_use].dma = 0;
+		ring->desc_cb[ring->next_to_use].type = DESC_TYPE_UNKNOWN;
 	}
 }
 
-- 
2.25.1

[PATCH 5.7 080/179] net: hns3: fix return value error when query MAC link status fail

[Greg Kroah-Hartman]

From: Jian Shen <shenjian15@huawei.com>

[ Upstream commit fac24df7b9a6d9363abdff0e351ade041dd16daa ]

Currently, PF queries the MAC link status per second by calling
function hclge_get_mac_link_status(). It return the error code
when failed to send cmdq command to firmware. It's incorrect,
because this return value is used as the MAC link status, which
0 means link down, and none-zero means link up. So fixes it.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 49 +++++++++----------
 .../hisilicon/hns3/hns3pf/hclge_main.h        |  3 ++
 2 files changed, 25 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 4de268a879582..b66b93f320b42 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2680,11 +2680,10 @@ void hclge_task_schedule(struct hclge_dev *hdev, unsigned long delay_time)
 				    delay_time);
 }
 
-static int hclge_get_mac_link_status(struct hclge_dev *hdev)
+static int hclge_get_mac_link_status(struct hclge_dev *hdev, int *link_status)
 {
 	struct hclge_link_status_cmd *req;
 	struct hclge_desc desc;
-	int link_status;
 	int ret;
 
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_QUERY_LINK_STATUS, true);
@@ -2696,33 +2695,25 @@ static int hclge_get_mac_link_status(struct hclge_dev *hdev)
 	}
 
 	req = (struct hclge_link_status_cmd *)desc.data;
-	link_status = req->status & HCLGE_LINK_STATUS_UP_M;
+	*link_status = (req->status & HCLGE_LINK_STATUS_UP_M) > 0 ?
+		HCLGE_LINK_STATUS_UP : HCLGE_LINK_STATUS_DOWN;
 
-	return !!link_status;
+	return 0;
 }
 
-static int hclge_get_mac_phy_link(struct hclge_dev *hdev)
+static int hclge_get_mac_phy_link(struct hclge_dev *hdev, int *link_status)
 {
-	unsigned int mac_state;
-	int link_stat;
+	struct phy_device *phydev = hdev->hw.mac.phydev;
+
+	*link_status = HCLGE_LINK_STATUS_DOWN;
 
 	if (test_bit(HCLGE_STATE_DOWN, &hdev->state))
 		return 0;
 
-	mac_state = hclge_get_mac_link_status(hdev);
-
-	if (hdev->hw.mac.phydev) {
-		if (hdev->hw.mac.phydev->state == PHY_RUNNING)
-			link_stat = mac_state &
-				hdev->hw.mac.phydev->link;
-		else
-			link_stat = 0;
-
-	} else {
-		link_stat = mac_state;
-	}
+	if (phydev && (phydev->state != PHY_RUNNING || !phydev->link))
+		return 0;
 
-	return !!link_stat;
+	return hclge_get_mac_link_status(hdev, link_status);
 }
 
 static void hclge_update_link_status(struct hclge_dev *hdev)
@@ -2732,6 +2723,7 @@ static void hclge_update_link_status(struct hclge_dev *hdev)
 	struct hnae3_handle *rhandle;
 	struct hnae3_handle *handle;
 	int state;
+	int ret;
 	int i;
 
 	if (!client)
@@ -2740,7 +2732,12 @@ static void hclge_update_link_status(struct hclge_dev *hdev)
 	if (test_and_set_bit(HCLGE_STATE_LINK_UPDATING, &hdev->state))
 		return;
 
-	state = hclge_get_mac_phy_link(hdev);
+	ret = hclge_get_mac_phy_link(hdev, &state);
+	if (ret) {
+		clear_bit(HCLGE_STATE_LINK_UPDATING, &hdev->state);
+		return;
+	}
+
 	if (state != hdev->hw.mac.link) {
 		for (i = 0; i < hdev->num_vmdq_vport + 1; i++) {
 			handle = &hdev->vport[i].nic;
@@ -6435,14 +6432,15 @@ static int hclge_mac_link_status_wait(struct hclge_dev *hdev, int link_ret)
 {
 #define HCLGE_MAC_LINK_STATUS_NUM  100
 
+	int link_status;
 	int i = 0;
 	int ret;
 
 	do {
-		ret = hclge_get_mac_link_status(hdev);
-		if (ret < 0)
+		ret = hclge_get_mac_link_status(hdev, &link_status);
+		if (ret)
 			return ret;
-		else if (ret == link_ret)
+		if (link_status == link_ret)
 			return 0;
 
 		msleep(HCLGE_LINK_STATUS_MS);
@@ -6453,9 +6451,6 @@ static int hclge_mac_link_status_wait(struct hclge_dev *hdev, int link_ret)
 static int hclge_mac_phy_link_status_wait(struct hclge_dev *hdev, bool en,
 					  bool is_phy)
 {
-#define HCLGE_LINK_STATUS_DOWN 0
-#define HCLGE_LINK_STATUS_UP   1
-
 	int link_ret;
 
 	link_ret = en ? HCLGE_LINK_STATUS_UP : HCLGE_LINK_STATUS_DOWN;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 71df23d5f1b4d..8784168f8f6f7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -316,6 +316,9 @@ enum hclge_link_fail_code {
 	HCLGE_LF_XSFP_ABSENT,
 };
 
+#define HCLGE_LINK_STATUS_DOWN 0
+#define HCLGE_LINK_STATUS_UP   1
+
 #define HCLGE_PG_NUM		4
 #define HCLGE_SCH_MODE_SP	0
 #define HCLGE_SCH_MODE_DWRR	1
-- 
2.25.1

[PATCH 5.7 081/179] net: dsa: microchip: call phy_remove_link_mode during probe

[Greg Kroah-Hartman]

From: Helmut Grohne <helmut.grohne@intenta.de>

[ Upstream commit 3506b2f42dff66ea6814c3dfa1988bafb79e6f88 ]

When doing "ip link set dev ... up" for a ksz9477 backed link,
ksz9477_phy_setup is called and it calls phy_remove_link_mode to remove
1000baseT HDX. During phy_remove_link_mode, phy_advertise_supported is
called. Doing so reverts any previous change to advertised link modes
e.g. using a udevd .link file.

phy_remove_link_mode is not meant to be used while opening a link and
should be called during phy probe when the link is not yet available to
userspace.

Therefore move the phy_remove_link_mode calls into
ksz9477_switch_register. It indirectly calls dsa_register_switch, which
creates the relevant struct phy_devices and we update the link modes
right after that. At that time dev->features is already initialized by
ksz9477_switch_detect.

Remove phy_setup from ksz_dev_ops as no users remain.

Link: https://lore.kernel.org/netdev/20200715192722.GD1256692@lunn.ch/
Fixes: 42fc6a4c613019 ("net: dsa: microchip: prepare PHY for proper advertisement")
Signed-off-by: Helmut Grohne <helmut.grohne@intenta.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/microchip/ksz9477.c    | 42 ++++++++++++++------------
 drivers/net/dsa/microchip/ksz_common.c |  2 --
 drivers/net/dsa/microchip/ksz_common.h |  2 --
 3 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 65701e65b6c2c..95a406e2e3731 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -977,23 +977,6 @@ static void ksz9477_port_mirror_del(struct dsa_switch *ds, int port,
 			     PORT_MIRROR_SNIFFER, false);
 }
 
-static void ksz9477_phy_setup(struct ksz_device *dev, int port,
-			      struct phy_device *phy)
-{
-	/* Only apply to port with PHY. */
-	if (port >= dev->phy_port_cnt)
-		return;
-
-	/* The MAC actually cannot run in 1000 half-duplex mode. */
-	phy_remove_link_mode(phy,
-			     ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
-
-	/* PHY does not support gigabit. */
-	if (!(dev->features & GBIT_SUPPORT))
-		phy_remove_link_mode(phy,
-				     ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
-}
-
 static bool ksz9477_get_gbit(struct ksz_device *dev, u8 data)
 {
 	bool gbit;
@@ -1606,7 +1589,6 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
 	.get_port_addr = ksz9477_get_port_addr,
 	.cfg_port_member = ksz9477_cfg_port_member,
 	.flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
-	.phy_setup = ksz9477_phy_setup,
 	.port_setup = ksz9477_port_setup,
 	.r_mib_cnt = ksz9477_r_mib_cnt,
 	.r_mib_pkt = ksz9477_r_mib_pkt,
@@ -1620,7 +1602,29 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
 
 int ksz9477_switch_register(struct ksz_device *dev)
 {
-	return ksz_switch_register(dev, &ksz9477_dev_ops);
+	int ret, i;
+	struct phy_device *phydev;
+
+	ret = ksz_switch_register(dev, &ksz9477_dev_ops);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < dev->phy_port_cnt; ++i) {
+		if (!dsa_is_user_port(dev->ds, i))
+			continue;
+
+		phydev = dsa_to_port(dev->ds, i)->slave->phydev;
+
+		/* The MAC actually cannot run in 1000 half-duplex mode. */
+		phy_remove_link_mode(phydev,
+				     ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
+
+		/* PHY does not support gigabit. */
+		if (!(dev->features & GBIT_SUPPORT))
+			phy_remove_link_mode(phydev,
+					     ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
+	}
+	return ret;
 }
 EXPORT_SYMBOL(ksz9477_switch_register);
 
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index fd1d6676ae4fd..7b6c0dce75360 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -358,8 +358,6 @@ int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
 
 	/* setup slave port */
 	dev->dev_ops->port_setup(dev, port, false);
-	if (dev->dev_ops->phy_setup)
-		dev->dev_ops->phy_setup(dev, port, phy);
 
 	/* port_stp_state_set() will be called after to enable the port so
 	 * there is no need to do anything.
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index f2c9bb68fd330..7d11dd32ec0d1 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -119,8 +119,6 @@ struct ksz_dev_ops {
 	u32 (*get_port_addr)(int port, int offset);
 	void (*cfg_port_member)(struct ksz_device *dev, int port, u8 member);
 	void (*flush_dyn_mac_table)(struct ksz_device *dev, int port);
-	void (*phy_setup)(struct ksz_device *dev, int port,
-			  struct phy_device *phy);
 	void (*port_cleanup)(struct ksz_device *dev, int port);
 	void (*port_setup)(struct ksz_device *dev, int port, bool cpu_port);
 	void (*r_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
-- 
2.25.1

[PATCH 5.7 082/179] netdevsim: fix unbalaced locking in nsim_create()

[Greg Kroah-Hartman]

From: Taehee Yoo <ap420073@gmail.com>

[ Upstream commit 2c9d8e01f0c6017317eee7638496173d4a64e6bc ]

In the nsim_create(), rtnl_lock() is called before nsim_bpf_init().
If nsim_bpf_init() is failed, rtnl_unlock() should be called,
but it isn't called.
So, unbalanced locking would occur.

Fixes: e05b2d141fef ("netdevsim: move netdev creation/destruction to dev probe")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/netdevsim/netdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index 2908e0a0d6e19..23950e7a0f81e 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -302,7 +302,7 @@ nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port)
 	rtnl_lock();
 	err = nsim_bpf_init(ns);
 	if (err)
-		goto err_free_netdev;
+		goto err_rtnl_unlock;
 
 	nsim_ipsec_init(ns);
 
@@ -316,8 +316,8 @@ nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port)
 err_ipsec_teardown:
 	nsim_ipsec_teardown(ns);
 	nsim_bpf_uninit(ns);
+err_rtnl_unlock:
 	rtnl_unlock();
-err_free_netdev:
 	free_netdev(dev);
 	return ERR_PTR(err);
 }
-- 
2.25.1

[PATCH 5.7 083/179] qed: suppress "dont support RoCE & iWARP" flooding on HW init

[Greg Kroah-Hartman]

From: Alexander Lobakin <alobakin@marvell.com>

[ Upstream commit 1ea999039fe7c7953da2fbb7ca7c3ef00064d328 ]

Change the verbosity of the "don't support RoCE & iWARP simultaneously"
warning to debug level to stop flooding on driver/hardware initialization:

[    4.783230] qede 01:00.00: Storm FW 8.37.7.0, Management FW 8.52.9.0
[MBI 15.10.6] [eth0]
[    4.810020] [qed_rdma_set_pf_params:2076()]Current day drivers don't
support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only
[    4.861186] qede 01:00.01: Storm FW 8.37.7.0, Management FW 8.52.9.0
[MBI 15.10.6] [eth1]
[    4.893311] [qed_rdma_set_pf_params:2076()]Current day drivers don't
support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only
[    5.181713] qede a1:00.00: Storm FW 8.37.7.0, Management FW 8.52.9.0
[MBI 15.10.6] [eth2]
[    5.224740] [qed_rdma_set_pf_params:2076()]Current day drivers don't
support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only
[    5.276449] qede a1:00.01: Storm FW 8.37.7.0, Management FW 8.52.9.0
[MBI 15.10.6] [eth3]
[    5.318671] [qed_rdma_set_pf_params:2076()]Current day drivers don't
support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only
[    5.369548] qede a1:00.02: Storm FW 8.37.7.0, Management FW 8.52.9.0
[MBI 15.10.6] [eth4]
[    5.411645] [qed_rdma_set_pf_params:2076()]Current day drivers don't
support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only

Fixes: e0a8f9de16fc ("qed: Add iWARP enablement support")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_cxt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index aeed8939f410a..3bbcff5f26214 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -1987,8 +1987,8 @@ static void qed_rdma_set_pf_params(struct qed_hwfn *p_hwfn,
 	num_srqs = min_t(u32, QED_RDMA_MAX_SRQS, p_params->num_srqs);
 
 	if (p_hwfn->mcp_info->func_info.protocol == QED_PCI_ETH_RDMA) {
-		DP_NOTICE(p_hwfn,
-			  "Current day drivers don't support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only\n");
+		DP_VERBOSE(p_hwfn, QED_MSG_SP,
+			   "Current day drivers don't support RoCE & iWARP simultaneously on the same PF. Default to RoCE-only\n");
 		p_hwfn->hw_info.personality = QED_PCI_ETH_ROCE;
 	}
 
-- 
2.25.1

[PATCH 5.7 084/179] qed: suppress false-positives interrupt error messages on HW init

[Greg Kroah-Hartman]

From: Alexander Lobakin <alobakin@marvell.com>

[ Upstream commit eb61c2d69903e977ffa2b80b1da9d1f758cf228d ]

It was found that qed_pglueb_rbc_attn_handler() can produce a lot of
false-positive error detections on driver load/reload (especially after
crashes/recoveries) and spam the kernel log:

[    4.958275] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d00ff0
[ 2079.146764] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[ 2116.374631] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[ 2135.250564] [qed_pglueb_rbc_attn_handler:324()]ICPL error - 00d80ff0
[...]

Reduce the logging level of two false-positive prone error messages from
notice to verbose on initialization (only) to not mix it with real error
attentions while debugging.

Fixes: 666db4862f2d ("qed: Revise load sequence to avoid PCI errors")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  2 +-
 drivers/net/ethernet/qlogic/qed/qed_int.c | 50 +++++++++++++----------
 drivers/net/ethernet/qlogic/qed/qed_int.h |  4 +-
 3 files changed, 32 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 58913fe4f3457..0629dd4e18d97 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -3096,7 +3096,7 @@ int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params)
 		}
 
 		/* Log and clear previous pglue_b errors if such exist */
-		qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt);
+		qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt, true);
 
 		/* Enable the PF's internal FID_enable in the PXP */
 		rc = qed_pglueb_set_pfid_enable(p_hwfn, p_hwfn->p_main_ptt,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.c b/drivers/net/ethernet/qlogic/qed/qed_int.c
index 9f5113639eaf0..8d106063e9275 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.c
@@ -256,9 +256,10 @@ out:
 #define PGLUE_ATTENTION_ZLR_VALID		(1 << 25)
 #define PGLUE_ATTENTION_ILT_VALID		(1 << 23)
 
-int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
-				struct qed_ptt *p_ptt)
+int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+				bool hw_init)
 {
+	char msg[256];
 	u32 tmp;
 
 	tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_TX_ERR_WR_DETAILS2);
@@ -272,22 +273,23 @@ int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
 		details = qed_rd(p_hwfn, p_ptt,
 				 PGLUE_B_REG_TX_ERR_WR_DETAILS);
 
-		DP_NOTICE(p_hwfn,
-			  "Illegal write by chip to [%08x:%08x] blocked.\n"
-			  "Details: %08x [PFID %02x, VFID %02x, VF_VALID %02x]\n"
-			  "Details2 %08x [Was_error %02x BME deassert %02x FID_enable deassert %02x]\n",
-			  addr_hi, addr_lo, details,
-			  (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_PFID),
-			  (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VFID),
-			  GET_FIELD(details,
-				    PGLUE_ATTENTION_DETAILS_VF_VALID) ? 1 : 0,
-			  tmp,
-			  GET_FIELD(tmp,
-				    PGLUE_ATTENTION_DETAILS2_WAS_ERR) ? 1 : 0,
-			  GET_FIELD(tmp,
-				    PGLUE_ATTENTION_DETAILS2_BME) ? 1 : 0,
-			  GET_FIELD(tmp,
-				    PGLUE_ATTENTION_DETAILS2_FID_EN) ? 1 : 0);
+		snprintf(msg, sizeof(msg),
+			 "Illegal write by chip to [%08x:%08x] blocked.\n"
+			 "Details: %08x [PFID %02x, VFID %02x, VF_VALID %02x]\n"
+			 "Details2 %08x [Was_error %02x BME deassert %02x FID_enable deassert %02x]",
+			 addr_hi, addr_lo, details,
+			 (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_PFID),
+			 (u8)GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VFID),
+			 !!GET_FIELD(details, PGLUE_ATTENTION_DETAILS_VF_VALID),
+			 tmp,
+			 !!GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_WAS_ERR),
+			 !!GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_BME),
+			 !!GET_FIELD(tmp, PGLUE_ATTENTION_DETAILS2_FID_EN));
+
+		if (hw_init)
+			DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "%s\n", msg);
+		else
+			DP_NOTICE(p_hwfn, "%s\n", msg);
 	}
 
 	tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_TX_ERR_RD_DETAILS2);
@@ -320,8 +322,14 @@ int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
 	}
 
 	tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_TX_ERR_WR_DETAILS_ICPL);
-	if (tmp & PGLUE_ATTENTION_ICPL_VALID)
-		DP_NOTICE(p_hwfn, "ICPL error - %08x\n", tmp);
+	if (tmp & PGLUE_ATTENTION_ICPL_VALID) {
+		snprintf(msg, sizeof(msg), "ICPL error - %08x", tmp);
+
+		if (hw_init)
+			DP_VERBOSE(p_hwfn, NETIF_MSG_INTR, "%s\n", msg);
+		else
+			DP_NOTICE(p_hwfn, "%s\n", msg);
+	}
 
 	tmp = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_MASTER_ZLR_ERR_DETAILS);
 	if (tmp & PGLUE_ATTENTION_ZLR_VALID) {
@@ -360,7 +368,7 @@ int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
 
 static int qed_pglueb_rbc_attn_cb(struct qed_hwfn *p_hwfn)
 {
-	return qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_dpc_ptt);
+	return qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_dpc_ptt, false);
 }
 
 #define QED_DORQ_ATTENTION_REASON_MASK  (0xfffff)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.h b/drivers/net/ethernet/qlogic/qed/qed_int.h
index 9ad568d93ae65..defb0d1bc45a2 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.h
@@ -431,7 +431,7 @@ int qed_int_set_timer_res(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 
 #define QED_MAPPING_MEMORY_SIZE(dev)	(NUM_OF_SBS(dev))
 
-int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn,
-				struct qed_ptt *p_ptt);
+int qed_pglueb_rbc_attn_handler(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+				bool hw_init);
 
 #endif
-- 
2.25.1

[PATCH 5.7 085/179] ipvs: fix the connection sync failed in some cases

[Greg Kroah-Hartman]

From: guodeqing <geffrey.guo@huawei.com>

[ Upstream commit 8210e344ccb798c672ab237b1a4f241bda08909b ]

The sync_thread_backup only checks sk_receive_queue is empty or not,
there is a situation which cannot sync the connection entries when
sk_receive_queue is empty and sk_rmem_alloc is larger than sk_rcvbuf,
the sync packets are dropped in __udp_enqueue_schedule_skb, this is
because the packets in reader_queue is not read, so the rmem is
not reclaimed.

Here I add the check of whether the reader_queue of the udp sock is
empty or not to solve this problem.

Fixes: 2276f58ac589 ("udp: use a separate rx queue for packet reception")
Reported-by: zhouxudong <zhouxudong8@huawei.com>
Signed-off-by: guodeqing <geffrey.guo@huawei.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/ipvs/ip_vs_sync.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 605e0f68f8bd3..2b8abbfe018cf 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -1717,6 +1717,8 @@ static int sync_thread_backup(void *data)
 {
 	struct ip_vs_sync_thread_data *tinfo = data;
 	struct netns_ipvs *ipvs = tinfo->ipvs;
+	struct sock *sk = tinfo->sock->sk;
+	struct udp_sock *up = udp_sk(sk);
 	int len;
 
 	pr_info("sync thread started: state = BACKUP, mcast_ifn = %s, "
@@ -1724,12 +1726,14 @@ static int sync_thread_backup(void *data)
 		ipvs->bcfg.mcast_ifn, ipvs->bcfg.syncid, tinfo->id);
 
 	while (!kthread_should_stop()) {
-		wait_event_interruptible(*sk_sleep(tinfo->sock->sk),
-			 !skb_queue_empty(&tinfo->sock->sk->sk_receive_queue)
-			 || kthread_should_stop());
+		wait_event_interruptible(*sk_sleep(sk),
+					 !skb_queue_empty_lockless(&sk->sk_receive_queue) ||
+					 !skb_queue_empty_lockless(&up->reader_queue) ||
+					 kthread_should_stop());
 
 		/* do we have data now? */
-		while (!skb_queue_empty(&(tinfo->sock->sk->sk_receive_queue))) {
+		while (!skb_queue_empty_lockless(&sk->sk_receive_queue) ||
+		       !skb_queue_empty_lockless(&up->reader_queue)) {
 			len = ip_vs_receive(tinfo->sock, tinfo->buf,
 					ipvs->bcfg.sync_maxlen);
 			if (len <= 0) {
-- 
2.25.1

[PATCH 5.7 086/179] net: ethernet: ave: Fix error returns in ave_init

[Greg Kroah-Hartman]

From: Wang Hai <wanghai38@huawei.com>

[ Upstream commit 1264d7fa3a64d8bea7aebb77253f917947ffda25 ]

When regmap_update_bits failed in ave_init(), calls of the functions
reset_control_assert() and clk_disable_unprepare() were missed.
Add goto out_reset_assert to do this.

Fixes: 57878f2f4697 ("net: ethernet: ave: add support for phy-mode setting of system controller")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/socionext/sni_ave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/socionext/sni_ave.c b/drivers/net/ethernet/socionext/sni_ave.c
index 67ddf782d98a5..897c895629d03 100644
--- a/drivers/net/ethernet/socionext/sni_ave.c
+++ b/drivers/net/ethernet/socionext/sni_ave.c
@@ -1191,7 +1191,7 @@ static int ave_init(struct net_device *ndev)
 	ret = regmap_update_bits(priv->regmap, SG_ETPINMODE,
 				 priv->pinmode_mask, priv->pinmode_val);
 	if (ret)
-		return ret;
+		goto out_reset_assert;
 
 	ave_global_reset(ndev);
 
-- 
2.25.1

[PATCH 5.7 087/179] iommu/qcom: Use domain rather than dev as tlb cookie

[Greg Kroah-Hartman]

From: Rob Clark <robdclark@chromium.org>

[ Upstream commit 1014a2f8d76b05e0f228dd097ac1a249c5934232 ]

The device may be torn down, but the domain should still be valid.  Lets
use that as the tlb flush ops cookie.

Fixes a problem reported in [1]

[1] https://lkml.org/lkml/2020/7/20/104

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: 09b5dfff9ad6 ("iommu/qcom: Use accessor functions for iommu private data")
Link: https://lore.kernel.org/r/20200720155217.274994-1-robdclark@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/qcom_iommu.c | 37 +++++++++++++++++--------------------
 1 file changed, 17 insertions(+), 20 deletions(-)

diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index 5b3b270972f80..c6277d7398f30 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -65,6 +65,7 @@ struct qcom_iommu_domain {
 	struct mutex		 init_mutex; /* Protects iommu pointer */
 	struct iommu_domain	 domain;
 	struct qcom_iommu_dev	*iommu;
+	struct iommu_fwspec	*fwspec;
 };
 
 static struct qcom_iommu_domain *to_qcom_iommu_domain(struct iommu_domain *dom)
@@ -84,9 +85,9 @@ static struct qcom_iommu_dev * to_iommu(struct device *dev)
 	return dev_iommu_priv_get(dev);
 }
 
-static struct qcom_iommu_ctx * to_ctx(struct device *dev, unsigned asid)
+static struct qcom_iommu_ctx * to_ctx(struct qcom_iommu_domain *d, unsigned asid)
 {
-	struct qcom_iommu_dev *qcom_iommu = to_iommu(dev);
+	struct qcom_iommu_dev *qcom_iommu = d->iommu;
 	if (!qcom_iommu)
 		return NULL;
 	return qcom_iommu->ctxs[asid - 1];
@@ -118,14 +119,12 @@ iommu_readq(struct qcom_iommu_ctx *ctx, unsigned reg)
 
 static void qcom_iommu_tlb_sync(void *cookie)
 {
-	struct iommu_fwspec *fwspec;
-	struct device *dev = cookie;
+	struct qcom_iommu_domain *qcom_domain = cookie;
+	struct iommu_fwspec *fwspec = qcom_domain->fwspec;
 	unsigned i;
 
-	fwspec = dev_iommu_fwspec_get(dev);
-
 	for (i = 0; i < fwspec->num_ids; i++) {
-		struct qcom_iommu_ctx *ctx = to_ctx(dev, fwspec->ids[i]);
+		struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain, fwspec->ids[i]);
 		unsigned int val, ret;
 
 		iommu_writel(ctx, ARM_SMMU_CB_TLBSYNC, 0);
@@ -139,14 +138,12 @@ static void qcom_iommu_tlb_sync(void *cookie)
 
 static void qcom_iommu_tlb_inv_context(void *cookie)
 {
-	struct device *dev = cookie;
-	struct iommu_fwspec *fwspec;
+	struct qcom_iommu_domain *qcom_domain = cookie;
+	struct iommu_fwspec *fwspec = qcom_domain->fwspec;
 	unsigned i;
 
-	fwspec = dev_iommu_fwspec_get(dev);
-
 	for (i = 0; i < fwspec->num_ids; i++) {
-		struct qcom_iommu_ctx *ctx = to_ctx(dev, fwspec->ids[i]);
+		struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain, fwspec->ids[i]);
 		iommu_writel(ctx, ARM_SMMU_CB_S1_TLBIASID, ctx->asid);
 	}
 
@@ -156,16 +153,14 @@ static void qcom_iommu_tlb_inv_context(void *cookie)
 static void qcom_iommu_tlb_inv_range_nosync(unsigned long iova, size_t size,
 					    size_t granule, bool leaf, void *cookie)
 {
-	struct device *dev = cookie;
-	struct iommu_fwspec *fwspec;
+	struct qcom_iommu_domain *qcom_domain = cookie;
+	struct iommu_fwspec *fwspec = qcom_domain->fwspec;
 	unsigned i, reg;
 
 	reg = leaf ? ARM_SMMU_CB_S1_TLBIVAL : ARM_SMMU_CB_S1_TLBIVA;
 
-	fwspec = dev_iommu_fwspec_get(dev);
-
 	for (i = 0; i < fwspec->num_ids; i++) {
-		struct qcom_iommu_ctx *ctx = to_ctx(dev, fwspec->ids[i]);
+		struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain, fwspec->ids[i]);
 		size_t s = size;
 
 		iova = (iova >> 12) << 12;
@@ -256,7 +251,9 @@ static int qcom_iommu_init_domain(struct iommu_domain *domain,
 	};
 
 	qcom_domain->iommu = qcom_iommu;
-	pgtbl_ops = alloc_io_pgtable_ops(ARM_32_LPAE_S1, &pgtbl_cfg, dev);
+	qcom_domain->fwspec = fwspec;
+
+	pgtbl_ops = alloc_io_pgtable_ops(ARM_32_LPAE_S1, &pgtbl_cfg, qcom_domain);
 	if (!pgtbl_ops) {
 		dev_err(qcom_iommu->dev, "failed to allocate pagetable ops\n");
 		ret = -ENOMEM;
@@ -269,7 +266,7 @@ static int qcom_iommu_init_domain(struct iommu_domain *domain,
 	domain->geometry.force_aperture = true;
 
 	for (i = 0; i < fwspec->num_ids; i++) {
-		struct qcom_iommu_ctx *ctx = to_ctx(dev, fwspec->ids[i]);
+		struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain, fwspec->ids[i]);
 
 		if (!ctx->secure_init) {
 			ret = qcom_scm_restore_sec_cfg(qcom_iommu->sec_id, ctx->asid);
@@ -419,7 +416,7 @@ static void qcom_iommu_detach_dev(struct iommu_domain *domain, struct device *de
 
 	pm_runtime_get_sync(qcom_iommu->dev);
 	for (i = 0; i < fwspec->num_ids; i++) {
-		struct qcom_iommu_ctx *ctx = to_ctx(dev, fwspec->ids[i]);
+		struct qcom_iommu_ctx *ctx = to_ctx(qcom_domain, fwspec->ids[i]);
 
 		/* Disable the context bank: */
 		iommu_writel(ctx, ARM_SMMU_CB_SCTLR, 0);
-- 
2.25.1

[PATCH 5.7 088/179] Revert "PCI/PM: Assume ports without DLL Link Active train links in 100 ms"

[Greg Kroah-Hartman]

From: Bjorn Helgaas <bhelgaas@google.com>

[ Upstream commit d08c30d7a0d1826f771f16cde32bd86e48401791 ]

This reverts commit ec411e02b7a2e785a4ed9ed283207cd14f48699d.

Patrick reported that this commit broke hybrid graphics on a ThinkPad X1
Extreme 2nd with Intel UHD Graphics 630 and NVIDIA GeForce GTX 1650 Mobile:

  nouveau 0000:01:00.0: fifo: PBDMA0: 01000000 [] ch 0 [00ff992000 DRM] subc 0 mthd 0008 data 00000000

Karol reported that this commit broke Nouveau firmware loading on a Lenovo
P1G2 with Intel UHD Graphics 630 and NVIDIA TU117GLM [Quadro T1000 Mobile]:

  nouveau 0000:01:00.0: acr: AHESASC binary failed

In both cases, reverting ec411e02b7a2 solved the problem.  Unfortunately,
this revert will reintroduce the "Thunderbolt bridges take long time to
resume from D3cold" problem:
https://bugzilla.kernel.org/show_bug.cgi?id=206837

Link: https://lore.kernel.org/r/CAErSpo5sTeK_my1dEhWp7aHD0xOp87+oHYWkTjbL7ALgDbXo-Q@mail.gmail.com
Link: https://lore.kernel.org/r/CACO55tsAEa5GXw5oeJPG=mcn+qxNvspXreJYWDJGZBy5v82JDA@mail.gmail.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208597
Reported-by: Patrick Volkerding <volkerdi@gmail.com>
Reported-by: Karol Herbst <kherbst@redhat.com>
Fixes: ec411e02b7a2 ("PCI/PM: Assume ports without DLL Link Active train links in 100 ms")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pci.c | 30 +++++++++---------------------
 1 file changed, 9 insertions(+), 21 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index d4758518a97bd..a4efc7e0061f5 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4662,8 +4662,7 @@ static int pci_pm_reset(struct pci_dev *dev, int probe)
  * pcie_wait_for_link_delay - Wait until link is active or inactive
  * @pdev: Bridge device
  * @active: waiting for active or inactive?
- * @delay: Delay to wait after link has become active (in ms). Specify %0
- *	   for no delay.
+ * @delay: Delay to wait after link has become active (in ms)
  *
  * Use this to wait till link becomes active or inactive.
  */
@@ -4704,7 +4703,7 @@ static bool pcie_wait_for_link_delay(struct pci_dev *pdev, bool active,
 		msleep(10);
 		timeout -= 10;
 	}
-	if (active && ret && delay)
+	if (active && ret)
 		msleep(delay);
 	else if (ret != active)
 		pci_info(pdev, "Data Link Layer Link Active not %s in 1000 msec\n",
@@ -4825,28 +4824,17 @@ void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev)
 	if (!pcie_downstream_port(dev))
 		return;
 
-	/*
-	 * Per PCIe r5.0, sec 6.6.1, for downstream ports that support
-	 * speeds > 5 GT/s, we must wait for link training to complete
-	 * before the mandatory delay.
-	 *
-	 * We can only tell when link training completes via DLL Link
-	 * Active, which is required for downstream ports that support
-	 * speeds > 5 GT/s (sec 7.5.3.6).  Unfortunately some common
-	 * devices do not implement Link Active reporting even when it's
-	 * required, so we'll check for that directly instead of checking
-	 * the supported link speed.  We assume devices without Link Active
-	 * reporting can train in 100 ms regardless of speed.
-	 */
-	if (dev->link_active_reporting) {
-		pci_dbg(dev, "waiting for link to train\n");
-		if (!pcie_wait_for_link_delay(dev, true, 0)) {
+	if (pcie_get_speed_cap(dev) <= PCIE_SPEED_5_0GT) {
+		pci_dbg(dev, "waiting %d ms for downstream link\n", delay);
+		msleep(delay);
+	} else {
+		pci_dbg(dev, "waiting %d ms for downstream link, after activation\n",
+			delay);
+		if (!pcie_wait_for_link_delay(dev, true, delay)) {
 			/* Did not train, no need to wait any further */
 			return;
 		}
 	}
-	pci_dbg(child, "waiting %d ms to become accessible\n", delay);
-	msleep(delay);
 
 	if (!pci_device_is_present(child)) {
 		pci_dbg(child, "waiting additional %d ms to become accessible\n", delay);
-- 
2.25.1

[PATCH 5.7 089/179] nfsd4: fix NULL dereference in nfsd/clients display code

[Greg Kroah-Hartman]

From: J. Bruce Fields <bfields@redhat.com>

[ Upstream commit 9affa435817711861d774f5626c393c80f16d044 ]

We hold the cl_lock here, and that's enough to keep stateid's from going
away, but it's not enough to prevent the files they point to from going
away.  Take fi_lock and a reference and check for NULL, as we do in
other code.

Reported-by: NeilBrown <neilb@suse.de>
Fixes: 78599c42ae3c ("nfsd4: add file to display list of client's opens")
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfsd/nfs4state.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index bdfae3ba39539..0a201bb074b0e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -509,6 +509,17 @@ find_any_file(struct nfs4_file *f)
 	return ret;
 }
 
+static struct nfsd_file *find_deleg_file(struct nfs4_file *f)
+{
+	struct nfsd_file *ret = NULL;
+
+	spin_lock(&f->fi_lock);
+	if (f->fi_deleg_file)
+		ret = nfsd_file_get(f->fi_deleg_file);
+	spin_unlock(&f->fi_lock);
+	return ret;
+}
+
 static atomic_long_t num_delegations;
 unsigned long max_delegations;
 
@@ -2436,6 +2447,8 @@ static int nfs4_show_open(struct seq_file *s, struct nfs4_stid *st)
 	oo = ols->st_stateowner;
 	nf = st->sc_file;
 	file = find_any_file(nf);
+	if (!file)
+		return 0;
 
 	seq_printf(s, "- 0x%16phN: { type: open, ", &st->sc_stateid);
 
@@ -2469,6 +2482,8 @@ static int nfs4_show_lock(struct seq_file *s, struct nfs4_stid *st)
 	oo = ols->st_stateowner;
 	nf = st->sc_file;
 	file = find_any_file(nf);
+	if (!file)
+		return 0;
 
 	seq_printf(s, "- 0x%16phN: { type: lock, ", &st->sc_stateid);
 
@@ -2497,7 +2512,9 @@ static int nfs4_show_deleg(struct seq_file *s, struct nfs4_stid *st)
 
 	ds = delegstateid(st);
 	nf = st->sc_file;
-	file = nf->fi_deleg_file;
+	file = find_deleg_file(nf);
+	if (!file)
+		return 0;
 
 	seq_printf(s, "- 0x%16phN: { type: deleg, ", &st->sc_stateid);
 
@@ -2509,6 +2526,7 @@ static int nfs4_show_deleg(struct seq_file *s, struct nfs4_stid *st)
 
 	nfs4_show_superblock(s, file);
 	seq_printf(s, " }\n");
+	nfsd_file_put(file);
 
 	return 0;
 }
-- 
2.25.1

[PATCH 5.7 090/179] enetc: Remove the mdio bus on PF probe bailout

[Greg Kroah-Hartman]

From: Claudiu Manoil <claudiu.manoil@nxp.com>

[ Upstream commit 26cb7085c8984e5b71d65c374a135134ed8cabb3 ]

For ENETC ports that register an external MDIO bus,
the bus doesn't get removed on the error bailout path
of enetc_pf_probe().

This issue became much more visible after recent:
commit 07095c025ac2 ("net: enetc: Use DT protocol information to set up the ports")
Before this commit, one could make probing fail on the error
path only by having register_netdev() fail, which is unlikely.
But after this commit, because it moved the enetc_of_phy_get()
call up in the probing sequence, now we can trigger an mdiobus_free()
bug just by forcing enetc_alloc_msix() to return error, i.e. with the
'pci=nomsi' kernel bootarg (since ENETC relies on MSI support to work),
as the calltrace below shows:

kernel BUG at /home/eiz/work/enetc/net/drivers/net/phy/mdio_bus.c:648!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[...]
Hardware name: LS1028A RDB Board (DT)
pstate: 80000005 (Nzcv daif -PAN -UAO BTYPE=--)
pc : mdiobus_free+0x50/0x58
lr : devm_mdiobus_free+0x14/0x20
[...]
Call trace:
 mdiobus_free+0x50/0x58
 devm_mdiobus_free+0x14/0x20
 release_nodes+0x138/0x228
 devres_release_all+0x38/0x60
 really_probe+0x1c8/0x368
 driver_probe_device+0x5c/0xc0
 device_driver_attach+0x74/0x80
 __driver_attach+0x8c/0xd8
 bus_for_each_dev+0x7c/0xd8
 driver_attach+0x24/0x30
 bus_add_driver+0x154/0x200
 driver_register+0x64/0x120
 __pci_register_driver+0x44/0x50
 enetc_pf_driver_init+0x24/0x30
 do_one_initcall+0x60/0x1c0
 kernel_init_freeable+0x1fc/0x274
 kernel_init+0x14/0x110
 ret_from_fork+0x10/0x34

Fixes: ebfcb23d62ab ("enetc: Add ENETC PF level external MDIO support")
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/enetc/enetc_pf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 438648a06f2ae..041e19895adfa 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -919,6 +919,7 @@ static int enetc_pf_probe(struct pci_dev *pdev,
 	return 0;
 
 err_reg_netdev:
+	enetc_mdio_remove(pf);
 	enetc_of_put_phy(priv);
 	enetc_free_msix(priv);
 err_alloc_msix:
-- 
2.25.1

[PATCH 5.7 091/179] i2c: rcar: always clear ICSAR to avoid side effects

[Greg Kroah-Hartman]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit eb01597158ffb1853a7a7fc2c57d4c844640f75e ]

On R-Car Gen2, we get a timeout when reading from the address set in
ICSAR, even though the slave interface is disabled. Clearing it fixes
this situation. Note that Gen3 is not affected.

To reproduce: bind and undbind an I2C slave on some bus, run
'i2cdetect' on that bus.

Fixes: de20d1857dd6 ("i2c: rcar: add slave support")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-rcar.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 3b5397aa4ca60..50dd98803ca0c 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -868,6 +868,7 @@ static int rcar_unreg_slave(struct i2c_client *slave)
 	/* disable irqs and ensure none is running before clearing ptr */
 	rcar_i2c_write(priv, ICSIER, 0);
 	rcar_i2c_write(priv, ICSCR, 0);
+	rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
 
 	synchronize_irq(priv->irq);
 	priv->slave = NULL;
@@ -971,6 +972,8 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto out_pm_put;
 
+	rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
+
 	if (priv->devtype == I2C_RCAR_GEN3) {
 		priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 		if (!IS_ERR(priv->rstc)) {
-- 
2.25.1

[PATCH 5.7 092/179] i2c: i2c-qcom-geni: Fix DMA transfer race

[Greg Kroah-Hartman]

From: Douglas Anderson <dianders@chromium.org>

[ Upstream commit 02b9aec59243c6240fc42884acc958602146ddf6 ]

When I have KASAN enabled on my kernel and I start stressing the
touchscreen my system tends to hang.  The touchscreen is one of the
only things that does a lot of big i2c transfers and ends up hitting
the DMA paths in the geni i2c driver.  It appears that KASAN adds
enough delay in my system to tickle a race condition in the DMA setup
code.

When the system hangs, I found that it was running the geni_i2c_irq()
over and over again.  It had these:

m_stat   = 0x04000080
rx_st    = 0x30000011
dm_tx_st = 0x00000000
dm_rx_st = 0x00000000
dma      = 0x00000001

Notably we're in DMA mode but are getting M_RX_IRQ_EN and
M_RX_FIFO_WATERMARK_EN over and over again.

Putting some traces in geni_i2c_rx_one_msg() showed that when we
failed we were getting to the start of geni_i2c_rx_one_msg() but were
never executing geni_se_rx_dma_prep().

I believe that the problem here is that we are starting the geni
command before we run geni_se_rx_dma_prep().  If a transfer makes it
far enough before we do that then we get into the state I have
observed.  Let's change the order, which seems to work fine.

Although problems were seen on the RX path, code inspection suggests
that the TX should be changed too.  Change it as well.

Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Akash Asthana <akashast@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-qcom-geni.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index 18d1e4fd4cf34..7f130829bf018 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -367,7 +367,6 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
 		geni_se_select_mode(se, GENI_SE_FIFO);
 
 	writel_relaxed(len, se->base + SE_I2C_RX_TRANS_LEN);
-	geni_se_setup_m_cmd(se, I2C_READ, m_param);
 
 	if (dma_buf && geni_se_rx_dma_prep(se, dma_buf, len, &rx_dma)) {
 		geni_se_select_mode(se, GENI_SE_FIFO);
@@ -375,6 +374,8 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
 		dma_buf = NULL;
 	}
 
+	geni_se_setup_m_cmd(se, I2C_READ, m_param);
+
 	time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);
 	if (!time_left)
 		geni_i2c_abort_xfer(gi2c);
@@ -408,7 +409,6 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
 		geni_se_select_mode(se, GENI_SE_FIFO);
 
 	writel_relaxed(len, se->base + SE_I2C_TX_TRANS_LEN);
-	geni_se_setup_m_cmd(se, I2C_WRITE, m_param);
 
 	if (dma_buf && geni_se_tx_dma_prep(se, dma_buf, len, &tx_dma)) {
 		geni_se_select_mode(se, GENI_SE_FIFO);
@@ -416,6 +416,8 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
 		dma_buf = NULL;
 	}
 
+	geni_se_setup_m_cmd(se, I2C_WRITE, m_param);
+
 	if (!dma_buf) /* Get FIFO IRQ */
 		writel_relaxed(1, se->base + SE_GENI_TX_WATERMARK_REG);
 
-- 
2.25.1

[PATCH 5.7 093/179] bonding: check return value of register_netdevice() in bond_newlink()

[Greg Kroah-Hartman]

From: Cong Wang <xiyou.wangcong@gmail.com>

[ Upstream commit c75d1d5248c0c97996051809ad0e9f154ba5d76e ]

Very similar to commit 544f287b8495
("bonding: check error value of register_netdevice() immediately"),
we should immediately check the return value of register_netdevice()
before doing anything else.

Fixes: 005db31d5f5f ("bonding: set carrier off for devices created through netlink")
Reported-and-tested-by: syzbot+bbc3a11c4da63c1b74d6@syzkaller.appspotmail.com
Cc: Beniamino Galvani <bgalvani@redhat.com>
Cc: Taehee Yoo <ap420073@gmail.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_netlink.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index b43b51646b11a..f0f9138e967f3 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -456,11 +456,10 @@ static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 		return err;
 
 	err = register_netdevice(bond_dev);
-
-	netif_carrier_off(bond_dev);
 	if (!err) {
 		struct bonding *bond = netdev_priv(bond_dev);
 
+		netif_carrier_off(bond_dev);
 		bond_work_init_all(bond);
 	}
 
-- 
2.25.1

[PATCH 5.7 094/179] geneve: fix an uninitialized value in geneve_changelink()

[Greg Kroah-Hartman]

From: Cong Wang <xiyou.wangcong@gmail.com>

[ Upstream commit 32818c075c54bb0cae44dd6f7ab00b01c52b8372 ]

geneve_nl2info() sets 'df' conditionally, so we have to
initialize it by copying the value from existing geneve
device in geneve_changelink().

Fixes: 56c09de347e4 ("geneve: allow changing DF behavior after creation")
Reported-by: syzbot+7ebc2e088af5e4c0c9fa@syzkaller.appspotmail.com
Cc: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/geneve.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 4661ef865807f..dec52b763d508 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1615,11 +1615,11 @@ static int geneve_changelink(struct net_device *dev, struct nlattr *tb[],
 			     struct netlink_ext_ack *extack)
 {
 	struct geneve_dev *geneve = netdev_priv(dev);
+	enum ifla_geneve_df df = geneve->df;
 	struct geneve_sock *gs4, *gs6;
 	struct ip_tunnel_info info;
 	bool metadata;
 	bool use_udp6_rx_checksums;
-	enum ifla_geneve_df df;
 	bool ttl_inherit;
 	int err;
 
-- 
2.25.1

[PATCH 5.7 095/179] serial: exar: Fix GPIO configuration for Sealevel cards based on XR17V35X

[Greg Kroah-Hartman]

From: Matthew Howell <matthew.howell@sealevel.com>

[ Upstream commit 5fdbe136ae19ab751daaa4d08d9a42f3e30d17f9 ]

Sealevel XR17V35X based devices are inoperable on kernel versions
4.11 and above due to a change in the GPIO preconfiguration introduced in
commit
7dea8165f1d. This patch fixes this by preconfiguring the GPIO on Sealevel
cards to the value (0x00) used prior to commit 7dea8165f1d

With GPIOs preconfigured as per commit 7dea8165f1d all ports on
Sealevel XR17V35X based devices become stuck in high impedance
mode, regardless of dip-switch or software configuration. This
causes the device to become effectively unusable. This patch (in
various forms) has been distributed to our customers and no issues
related to it have been reported.

Fixes: 7dea8165f1d6 ("serial: exar: Preconfigure xr17v35x MPIOs as output")
Signed-off-by: Matthew Howell <matthew.howell@sealevel.com>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2007221605270.13247@tstest-VirtualBox
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/8250/8250_exar.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index 59449b6500cd6..9b5da1d43332f 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -326,7 +326,17 @@ static void setup_gpio(struct pci_dev *pcidev, u8 __iomem *p)
 	 * devices will export them as GPIOs, so we pre-configure them safely
 	 * as inputs.
 	 */
-	u8 dir = pcidev->vendor == PCI_VENDOR_ID_EXAR ? 0xff : 0x00;
+
+	u8 dir = 0x00;
+
+	if  ((pcidev->vendor == PCI_VENDOR_ID_EXAR) &&
+		(pcidev->subsystem_vendor != PCI_VENDOR_ID_SEALEVEL)) {
+		// Configure GPIO as inputs for Commtech adapters
+		dir = 0xff;
+	} else {
+		// Configure GPIO as outputs for SeaLevel adapters
+		dir = 0x00;
+	}
 
 	writeb(0x00, p + UART_EXAR_MPIOINT_7_0);
 	writeb(0x00, p + UART_EXAR_MPIOLVL_7_0);
-- 
2.25.1

[PATCH 5.7 096/179] scripts/decode_stacktrace: strip basepath from all paths

[Greg Kroah-Hartman]

From: Pi-Hsun Shih <pihsun@chromium.org>

[ Upstream commit d178770d8d21489abf5bafefcbb6d5243b482e9a ]

Currently the basepath is removed only from the beginning of the string.
When the symbol is inlined and there's multiple line outputs of
addr2line, only the first line would have basepath removed.

Change to remove the basepath prefix from all lines.

Fixes: 31013836a71e ("scripts/decode_stacktrace: match basepath using shell prefix operator, not regex")
Co-developed-by: Shik Chen <shik@chromium.org>
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: Shik Chen <shik@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Nicolas Boichat <drinkcat@chromium.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Link: http://lkml.kernel.org/r/20200720082709.252805-1-pihsun@chromium.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/decode_stacktrace.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 13e5fbafdf2f7..fe7076fdac8a3 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -84,8 +84,8 @@ parse_symbol() {
 		return
 	fi
 
-	# Strip out the base of the path
-	code=${code#$basepath/}
+	# Strip out the base of the path on each line
+	code=$(while read -r line; do echo "${line#$basepath/}"; done <<< "$code")
 
 	# In the case of inlines, move everything to same line
 	code=${code//$'\n'/' '}
-- 
2.25.1

[PATCH 5.7 097/179] scripts/gdb: fix lx-symbols gdb.error while loading modules

[Greg Kroah-Hartman]

From: Stefano Garzarella <sgarzare@redhat.com>

[ Upstream commit 7359608a271ce81803de148befefd309baf88c76 ]

Commit ed66f991bb19 ("module: Refactor section attr into bin attribute")
removed the 'name' field from 'struct module_sect_attr' triggering the
following error when invoking lx-symbols:

  (gdb) lx-symbols
  loading vmlinux
  scanning for modules in linux/build
  loading @0xffffffffc014f000: linux/build/drivers/net/tun.ko
  Python Exception <class 'gdb.error'> There is no member named name.:
  Error occurred in Python: There is no member named name.

This patch fixes the issue taking the module name from the 'struct
attribute'.

Fixes: ed66f991bb19 ("module: Refactor section attr into bin attribute")
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Kieran Bingham <kbingham@kernel.org>
Link: http://lkml.kernel.org/r/20200722102239.313231-1-sgarzare@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/gdb/linux/symbols.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py
index be984aa29b759..1be9763cf8bb2 100644
--- a/scripts/gdb/linux/symbols.py
+++ b/scripts/gdb/linux/symbols.py
@@ -96,7 +96,7 @@ lx-symbols command."""
             return ""
         attrs = sect_attrs['attrs']
         section_name_to_address = {
-            attrs[n]['name'].string(): attrs[n]['address']
+            attrs[n]['battr']['attr']['name'].string(): attrs[n]['address']
             for n in range(int(sect_attrs['nsections']))}
         args = []
         for section_name in [".data", ".data..read_mostly", ".rodata", ".bss",
-- 
2.25.1

[PATCH 5.7 098/179] RISC-V: Do not rely on initrd_start/end computed during early dt parsing

[Greg Kroah-Hartman]

From: Atish Patra <atish.patra@wdc.com>

[ Upstream commit 4400231c8acc7e513204c8470c6d796ba47dc169 ]

Currently, initrd_start/end are computed during early_init_dt_scan
but used during arch_setup. We will get the following panic if initrd is used
and CONFIG_DEBUG_VIRTUAL is turned on.

[    0.000000] ------------[ cut here ]------------
[    0.000000] kernel BUG at arch/riscv/mm/physaddr.c:33!
[    0.000000] Kernel BUG [#1]
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.8.0-rc4-00015-ged0b226fed02 #886
[    0.000000] epc: ffffffe0002058d2 ra : ffffffe0000053f0 sp : ffffffe001001f40
[    0.000000]  gp : ffffffe00106e250 tp : ffffffe001009d40 t0 : ffffffe00107ee28
[    0.000000]  t1 : 0000000000000000 t2 : ffffffe000a2e880 s0 : ffffffe001001f50
[    0.000000]  s1 : ffffffe0001383e8 a0 : ffffffe00c087e00 a1 : 0000000080200000
[    0.000000]  a2 : 00000000010bf000 a3 : ffffffe00106f3c8 a4 : ffffffe0010bf000
[    0.000000]  a5 : ffffffe000000000 a6 : 0000000000000006 a7 : 0000000000000001
[    0.000000]  s2 : ffffffe00106f068 s3 : ffffffe00106f070 s4 : 0000000080200000
[    0.000000]  s5 : 0000000082200000 s6 : 0000000000000000 s7 : 0000000000000000
[    0.000000]  s8 : 0000000080011010 s9 : 0000000080012700 s10: 0000000000000000
[    0.000000]  s11: 0000000000000000 t3 : 000000000001fe30 t4 : 000000000001fe30
[    0.000000]  t5 : 0000000000000000 t6 : ffffffe00107c471
[    0.000000] status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003
[    0.000000] random: get_random_bytes called from print_oops_end_marker+0x22/0x46 with crng_init=0

To avoid the error, initrd_start/end can be computed from phys_initrd_start/size
in setup itself. It also improves the initrd placement by aligning the start
and size with the page size.

Fixes: 76d2a0493a17 ("RISC-V: Init and Halt Code")
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/riscv/mm/init.c | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index fdc772f57edc3..81493cee0a167 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -94,19 +94,40 @@ void __init mem_init(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 static void __init setup_initrd(void)
 {
+	phys_addr_t start;
 	unsigned long size;
 
-	if (initrd_start >= initrd_end) {
-		pr_info("initrd not found or empty");
+	/* Ignore the virtul address computed during device tree parsing */
+	initrd_start = initrd_end = 0;
+
+	if (!phys_initrd_size)
+		return;
+	/*
+	 * Round the memory region to page boundaries as per free_initrd_mem()
+	 * This allows us to detect whether the pages overlapping the initrd
+	 * are in use, but more importantly, reserves the entire set of pages
+	 * as we don't want these pages allocated for other purposes.
+	 */
+	start = round_down(phys_initrd_start, PAGE_SIZE);
+	size = phys_initrd_size + (phys_initrd_start - start);
+	size = round_up(size, PAGE_SIZE);
+
+	if (!memblock_is_region_memory(start, size)) {
+		pr_err("INITRD: 0x%08llx+0x%08lx is not a memory region",
+		       (u64)start, size);
 		goto disable;
 	}
-	if (__pa_symbol(initrd_end) > PFN_PHYS(max_low_pfn)) {
-		pr_err("initrd extends beyond end of memory");
+
+	if (memblock_is_region_reserved(start, size)) {
+		pr_err("INITRD: 0x%08llx+0x%08lx overlaps in-use memory region\n",
+		       (u64)start, size);
 		goto disable;
 	}
 
-	size = initrd_end - initrd_start;
-	memblock_reserve(__pa_symbol(initrd_start), size);
+	memblock_reserve(start, size);
+	/* Now convert initrd to virtual addresses */
+	initrd_start = (unsigned long)__va(phys_initrd_start);
+	initrd_end = initrd_start + phys_initrd_size;
 	initrd_below_start_ok = 1;
 
 	pr_info("Initial ramdisk at: 0x%p (%lu bytes)\n",
-- 
2.25.1

[PATCH 5.7 099/179] kbuild: fix single target builds for external modules

[Greg Kroah-Hartman]

From: Masahiro Yamada <masahiroy@kernel.org>

[ Upstream commit 20b1be59528295e5c2a8812059b8560753dd8e68 ]

Commit f566e1fbadb6 ("kbuild: make multiple directory targets work")
broke single target builds for external modules. Fix this.

Fixes: f566e1fbadb6 ("kbuild: make multiple directory targets work")
Reported-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index e622e084e7e26..74056e09f0a30 100644
--- a/Makefile
+++ b/Makefile
@@ -1730,7 +1730,7 @@ PHONY += descend $(build-dirs)
 descend: $(build-dirs)
 $(build-dirs): prepare
 	$(Q)$(MAKE) $(build)=$@ \
-	single-build=$(if $(filter-out $@/, $(filter $@/%, $(single-no-ko))),1) \
+	single-build=$(if $(filter-out $@/, $(filter $@/%, $(KBUILD_SINGLE_TARGETS))),1) \
 	need-builtin=1 need-modorder=1
 
 clean-dirs := $(addprefix _clean_, $(clean-dirs))
-- 
2.25.1

[PATCH 5.7 100/179] HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override

[Greg Kroah-Hartman]

From: Federico Ricchiuto <fed.ricchiuto@gmail.com>

[ Upstream commit 43e666acb79f3d355dd89bf20f4d25d3b15da13e ]

The Mediacom FlexBook edge13 uses the SIPODEV SP1064 touchpad, which does not
supply descriptors, so it has to be added to the override list.

Signed-off-by: Federico Ricchiuto <fed.ricchiuto@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
index ec142bc8c1daf..35f3bfc3e6f59 100644
--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
@@ -373,6 +373,14 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
 		},
 		.driver_data = (void *)&sipodev_desc
 	},
+	{
+		.ident = "Mediacom FlexBook edge 13",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MEDIACOM"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook_edge13-M-FBE13"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
 	{
 		.ident = "Odys Winbook 13",
 		.matches = {
-- 
2.25.1

[PATCH 5.7 101/179] HID: alps: support devices with report id 2

[Greg Kroah-Hartman]

From: Caiyuan Xie <caiyuan.xie@cn.alps.com>

[ Upstream commit aa3c439c144f0a465ed1f28f11c772886fb02b35 ]

Add support for devices which that have reports with id == 2

Signed-off-by: Caiyuan Xie <caiyuan.xie@cn.alps.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-alps.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index b2ad319a74b9a..d33f5abc8f64d 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -25,6 +25,7 @@
 
 #define U1_MOUSE_REPORT_ID			0x01 /* Mouse data ReportID */
 #define U1_ABSOLUTE_REPORT_ID		0x03 /* Absolute data ReportID */
+#define U1_ABSOLUTE_REPORT_ID_SECD  0x02 /* FW-PTP Absolute data ReportID */
 #define U1_FEATURE_REPORT_ID		0x05 /* Feature ReportID */
 #define U1_SP_ABSOLUTE_REPORT_ID	0x06 /* Feature ReportID */
 
@@ -368,6 +369,7 @@ static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size)
 	case U1_FEATURE_REPORT_ID:
 		break;
 	case U1_ABSOLUTE_REPORT_ID:
+	case U1_ABSOLUTE_REPORT_ID_SECD:
 		for (i = 0; i < hdata->max_fingers; i++) {
 			u8 *contact = &data[i * 5];
 
-- 
2.25.1

[PATCH 5.7 102/179] dmaengine: ti: k3-udma: Fix cleanup code for alloc_chan_resources

[Greg Kroah-Hartman]

From: Peter Ujfalusi <peter.ujfalusi@ti.com>

[ Upstream commit 5a9377cc7421b59b13c9b90b8dc0aca332a1c958 ]

Some of the earlier errors should be sent to the error cleanup path to
make sure that the uchan struct is reset, the dma_pool (if allocated) is
released and memcpy channel pairs are released in a correct way.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200527070612.636-2-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/ti/k3-udma.c | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 7cab23fe5c73f..35f54a1af29d8 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -1773,7 +1773,8 @@ static int udma_alloc_chan_resources(struct dma_chan *chan)
 			dev_err(ud->ddev.dev,
 				"Descriptor pool allocation failed\n");
 			uc->use_dma_pool = false;
-			return -ENOMEM;
+			ret = -ENOMEM;
+			goto err_cleanup;
 		}
 	}
 
@@ -1793,16 +1794,18 @@ static int udma_alloc_chan_resources(struct dma_chan *chan)
 
 		ret = udma_get_chan_pair(uc);
 		if (ret)
-			return ret;
+			goto err_cleanup;
 
 		ret = udma_alloc_tx_resources(uc);
-		if (ret)
-			return ret;
+		if (ret) {
+			udma_put_rchan(uc);
+			goto err_cleanup;
+		}
 
 		ret = udma_alloc_rx_resources(uc);
 		if (ret) {
 			udma_free_tx_resources(uc);
-			return ret;
+			goto err_cleanup;
 		}
 
 		uc->config.src_thread = ud->psil_base + uc->tchan->id;
@@ -1820,10 +1823,8 @@ static int udma_alloc_chan_resources(struct dma_chan *chan)
 			uc->id);
 
 		ret = udma_alloc_tx_resources(uc);
-		if (ret) {
-			uc->config.remote_thread_id = -1;
-			return ret;
-		}
+		if (ret)
+			goto err_cleanup;
 
 		uc->config.src_thread = ud->psil_base + uc->tchan->id;
 		uc->config.dst_thread = uc->config.remote_thread_id;
@@ -1840,10 +1841,8 @@ static int udma_alloc_chan_resources(struct dma_chan *chan)
 			uc->id);
 
 		ret = udma_alloc_rx_resources(uc);
-		if (ret) {
-			uc->config.remote_thread_id = -1;
-			return ret;
-		}
+		if (ret)
+			goto err_cleanup;
 
 		uc->config.src_thread = uc->config.remote_thread_id;
 		uc->config.dst_thread = (ud->psil_base + uc->rchan->id) |
@@ -1858,7 +1857,9 @@ static int udma_alloc_chan_resources(struct dma_chan *chan)
 		/* Can not happen */
 		dev_err(uc->ud->dev, "%s: chan%d invalid direction (%u)\n",
 			__func__, uc->id, uc->config.dir);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_cleanup;
+
 	}
 
 	/* check if the channel configuration was successful */
@@ -1936,7 +1937,7 @@ err_psi_free:
 err_res_free:
 	udma_free_tx_resources(uc);
 	udma_free_rx_resources(uc);
-
+err_cleanup:
 	udma_reset_uchan(uc);
 
 	if (uc->use_dma_pool) {
-- 
2.25.1

[PATCH 5.7 103/179] dmaengine: ti: k3-udma: Fix the running channel handling in alloc_chan_resources

[Greg Kroah-Hartman]

From: Peter Ujfalusi <peter.ujfalusi@ti.com>

[ Upstream commit b5b0180c2f767e90b4a6a885a0a2abaab6e3d48d ]

In the unlikely case when the channel is running (RT enabled) during
alloc_chan_resources then we should use udma_reset_chan() and not
udma_stop() as the later is trying to initiate a teardown on the channel,
which is not valid at this point.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200527070612.636-3-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/ti/k3-udma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 35f54a1af29d8..b777f1924968f 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -1868,7 +1868,7 @@ static int udma_alloc_chan_resources(struct dma_chan *chan)
 
 	if (udma_is_chan_running(uc)) {
 		dev_warn(ud->dev, "chan%d: is running!\n", uc->id);
-		udma_stop(uc);
+		udma_reset_chan(uc, false);
 		if (udma_is_chan_running(uc)) {
 			dev_err(ud->dev, "chan%d: won't stop!\n", uc->id);
 			goto err_res_free;
-- 
2.25.1

[PATCH 5.7 104/179] HID: steam: fixes race in handling device list.

[Greg Kroah-Hartman]

From: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>

[ Upstream commit 2d3f53a80e4eed078669853a178ed96d88f74143 ]

Using uhid and KASAN this driver crashed because it was getting
several connection events where it only expected one. Then the
device was added several times to the static device list and it got
corrupted.

This patch checks if the device is already in the list before adding
it.

Signed-off-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Tested-by: Siarhei Vishniakou <svv@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-steam.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c
index 6286204d4c560..a3b151b29bd71 100644
--- a/drivers/hid/hid-steam.c
+++ b/drivers/hid/hid-steam.c
@@ -526,7 +526,8 @@ static int steam_register(struct steam_device *steam)
 			steam_battery_register(steam);
 
 		mutex_lock(&steam_devices_lock);
-		list_add(&steam->list, &steam_devices);
+		if (list_empty(&steam->list))
+			list_add(&steam->list, &steam_devices);
 		mutex_unlock(&steam_devices_lock);
 	}
 
@@ -552,7 +553,7 @@ static void steam_unregister(struct steam_device *steam)
 		hid_info(steam->hdev, "Steam Controller '%s' disconnected",
 				steam->serial_no);
 		mutex_lock(&steam_devices_lock);
-		list_del(&steam->list);
+		list_del_init(&steam->list);
 		mutex_unlock(&steam_devices_lock);
 		steam->serial_no[0] = 0;
 	}
@@ -738,6 +739,7 @@ static int steam_probe(struct hid_device *hdev,
 	mutex_init(&steam->mutex);
 	steam->quirks = id->driver_data;
 	INIT_WORK(&steam->work_connect, steam_work_connect_cb);
+	INIT_LIST_HEAD(&steam->list);
 
 	steam->client_hdev = steam_create_client_hid(hdev);
 	if (IS_ERR(steam->client_hdev)) {
-- 
2.25.1

[PATCH 5.7 105/179] dmaengine: ti: k3-udma: add missing put_device() call in of_xudma_dev_get()

[Greg Kroah-Hartman]

From: Yu Kuai <yukuai3@huawei.com>

[ Upstream commit 1438cde8fe9cb709b569f5829c4c892c0f3f15b3 ]

if of_find_device_by_node() succeed and platform_get_drvdata() failed,
of_xudma_dev_get() will return without put_device(), which will leak
the memory.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20200618130110.582543-1-yukuai3@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/ti/k3-udma-private.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/ti/k3-udma-private.c b/drivers/dma/ti/k3-udma-private.c
index 0b8f3dd6b1463..77e8e67d995b3 100644
--- a/drivers/dma/ti/k3-udma-private.c
+++ b/drivers/dma/ti/k3-udma-private.c
@@ -42,6 +42,7 @@ struct udma_dev *of_xudma_dev_get(struct device_node *np, const char *property)
 	ud = platform_get_drvdata(pdev);
 	if (!ud) {
 		pr_debug("UDMA has not been probed\n");
+		put_device(&pdev->dev);
 		return ERR_PTR(-EPROBE_DEFER);
 	}
 
-- 
2.25.1

[PATCH 5.7 106/179] dmaengine: idxd: fix hw descriptor fields for delta record

[Greg Kroah-Hartman]

From: Dave Jiang <dave.jiang@intel.com>

[ Upstream commit 0b8975bdc0cc5310d48d9bdd871cefebe1f94c99 ]

Fix the hw descriptor fields for delta record in user exported idxd.h
header. Missing the "expected result mask" field.

Reported-by: Mona Hossain <mona.hossain@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159120526866.65385.536565786678052944.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/idxd.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/idxd.h b/include/uapi/linux/idxd.h
index 1f412fbf561bb..e103c1434e4b0 100644
--- a/include/uapi/linux/idxd.h
+++ b/include/uapi/linux/idxd.h
@@ -110,9 +110,12 @@ struct dsa_hw_desc {
 	uint16_t	rsvd1;
 	union {
 		uint8_t		expected_res;
+		/* create delta record */
 		struct {
 			uint64_t	delta_addr;
 			uint32_t	max_delta_size;
+			uint32_t 	delt_rsvd;
+			uint8_t 	expected_res_mask;
 		};
 		uint32_t	delta_rec_size;
 		uint64_t	dest2;
-- 
2.25.1

[PATCH 5.7 107/179] HID: apple: Disable Fn-key key-re-mapping on clone keyboards

[Greg Kroah-Hartman]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit a5d81646fa294eed57786a9310b06ca48902adf8 ]

The Maxxter KB-BT-001 Bluetooth keyboard, which looks somewhat like the
Apple Wireless Keyboard, is using the vendor and product IDs (05AC:0239)
of the Apple Wireless Keyboard (2009 ANSI version) <sigh>.

But its F1 - F10 keys are marked as sending F1 - F10, not the special
functions hid-apple.c maps them too; and since its descriptors do not
contain the HID_UP_CUSTOM | 0x0003 usage apple-hid looks for for the
Fn-key, apple_setup_input() never gets called, so F1 - F6 are mapped
to key-codes which have not been set in the keybit array causing them
to not send any events at all.

The lack of a usage code matching the Fn key in the clone is actually
useful as this allows solving this problem in a generic way.

This commits adds a fn_found flag and it adds a input_configured
callback which checks if this flag is set once all usages have been
mapped. If it is not set, then assume this is a clone and clear the
quirks bitmap so that the hid-apple code does not add any special
handling to this keyboard.

This fixes F1 - F6 not sending anything at all and F7 - F12 sending
the wrong codes on the Maxxter KB-BT-001 Bluetooth keyboard and on
similar clones.

Cc: Joao Moreno <mail@joaomoreno.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-apple.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index d732d1d10cafb..6909c045fece1 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -54,6 +54,7 @@ MODULE_PARM_DESC(swap_opt_cmd, "Swap the Option (\"Alt\") and Command (\"Flag\")
 struct apple_sc {
 	unsigned long quirks;
 	unsigned int fn_on;
+	unsigned int fn_found;
 	DECLARE_BITMAP(pressed_numlock, KEY_CNT);
 };
 
@@ -339,12 +340,15 @@ static int apple_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
+	struct apple_sc *asc = hid_get_drvdata(hdev);
+
 	if (usage->hid == (HID_UP_CUSTOM | 0x0003) ||
 			usage->hid == (HID_UP_MSVENDOR | 0x0003) ||
 			usage->hid == (HID_UP_HPVENDOR2 | 0x0003)) {
 		/* The fn key on Apple USB keyboards */
 		set_bit(EV_REP, hi->input->evbit);
 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);
+		asc->fn_found = true;
 		apple_setup_input(hi->input);
 		return 1;
 	}
@@ -371,6 +375,19 @@ static int apple_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
+static int apple_input_configured(struct hid_device *hdev,
+		struct hid_input *hidinput)
+{
+	struct apple_sc *asc = hid_get_drvdata(hdev);
+
+	if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
+		hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
+		asc->quirks = 0;
+	}
+
+	return 0;
+}
+
 static int apple_probe(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
@@ -585,6 +602,7 @@ static struct hid_driver apple_driver = {
 	.event = apple_event,
 	.input_mapping = apple_input_mapping,
 	.input_mapped = apple_input_mapped,
+	.input_configured = apple_input_configured,
 };
 module_hid_driver(apple_driver);
 
-- 
2.25.1

[PATCH 5.7 108/179] dmaengine: tegra210-adma: Fix runtime PM imbalance on error

[Greg Kroah-Hartman]

From: Dinghao Liu <dinghao.liu@zju.edu.cn>

[ Upstream commit 5b78fac4b1ba731cf4177fdbc1e3a4661521bcd0 ]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200624064626.19855-1-dinghao.liu@zju.edu.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/tegra210-adma.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
index db58d7e4f9fec..c5fa2ef74abc7 100644
--- a/drivers/dma/tegra210-adma.c
+++ b/drivers/dma/tegra210-adma.c
@@ -658,6 +658,7 @@ static int tegra_adma_alloc_chan_resources(struct dma_chan *dc)
 
 	ret = pm_runtime_get_sync(tdc2dev(tdc));
 	if (ret < 0) {
+		pm_runtime_put_noidle(tdc2dev(tdc));
 		free_irq(tdc->irq, tdc);
 		return ret;
 	}
@@ -869,8 +870,10 @@ static int tegra_adma_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 
 	ret = pm_runtime_get_sync(&pdev->dev);
-	if (ret < 0)
+	if (ret < 0) {
+		pm_runtime_put_noidle(&pdev->dev);
 		goto rpm_disable;
+	}
 
 	ret = tegra_adma_init(tdma);
 	if (ret)
-- 
2.25.1

[PATCH 5.7 109/179] soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 IDs

[Greg Kroah-Hartman]

From: Christian Hewitt <christianshewitt@gmail.com>

[ Upstream commit d16d0481e6bab5a916450e4ef0e1c958b550880c ]

Correct the SoC revision and package bits/mask values for S905D3/X3 to detect
a wider range of observed SoC IDs, and tweak sort order for A311D/S922X.

S905X3 05 0000 0101  (SEI610 initial devices)
S905X3 10 0001 0000  (ODROID-C4 and recent Android boxes)
S905X3 50 0101 0000  (SEI610 later revisions)
S905D3 04 0000 0100  (VIM3L devices in kernelci)
S905D3 b0 1011 0000  (VIM3L initial production)

Fixes commit c9cc9bec36d0 ("soc: amlogic: meson-gx-socinfo: Add SM1 and S905X3 IDs")

Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20200609081318.28023-1-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/amlogic/meson-gx-socinfo.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/amlogic/meson-gx-socinfo.c b/drivers/soc/amlogic/meson-gx-socinfo.c
index 01fc0d20a70db..6f54bd832c8b8 100644
--- a/drivers/soc/amlogic/meson-gx-socinfo.c
+++ b/drivers/soc/amlogic/meson-gx-socinfo.c
@@ -66,10 +66,12 @@ static const struct meson_gx_package_id {
 	{ "A113D", 0x25, 0x22, 0xff },
 	{ "S905D2", 0x28, 0x10, 0xf0 },
 	{ "S905X2", 0x28, 0x40, 0xf0 },
-	{ "S922X", 0x29, 0x40, 0xf0 },
 	{ "A311D", 0x29, 0x10, 0xf0 },
-	{ "S905X3", 0x2b, 0x5, 0xf },
-	{ "S905D3", 0x2b, 0xb0, 0xf0 },
+	{ "S922X", 0x29, 0x40, 0xf0 },
+	{ "S905D3", 0x2b, 0x4, 0xf5 },
+	{ "S905X3", 0x2b, 0x5, 0xf5 },
+	{ "S905X3", 0x2b, 0x10, 0x3f },
+	{ "S905D3", 0x2b, 0x30, 0x3f },
 	{ "A113L", 0x2c, 0x0, 0xf8 },
 };
 
-- 
2.25.1

[PATCH 5.7 110/179] Input: add `SW_MACHINE_COVER`

[Greg Kroah-Hartman]

From: Merlijn Wajer <merlijn@wizzup.org>

[ Upstream commit c463bb2a8f8d7d97aa414bf7714fc77e9d3b10df ]

This event code represents the state of a removable cover of a device.
Value 0 means that the cover is open or removed, value 1 means that the
cover is closed.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
Link: https://lore.kernel.org/r/20200612125402.18393-2-merlijn@wizzup.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/mod_devicetable.h        | 2 +-
 include/uapi/linux/input-event-codes.h | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 0754b8d71262b..8a84f11bf1246 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -318,7 +318,7 @@ struct pcmcia_device_id {
 #define INPUT_DEVICE_ID_LED_MAX		0x0f
 #define INPUT_DEVICE_ID_SND_MAX		0x07
 #define INPUT_DEVICE_ID_FF_MAX		0x7f
-#define INPUT_DEVICE_ID_SW_MAX		0x0f
+#define INPUT_DEVICE_ID_SW_MAX		0x10
 #define INPUT_DEVICE_ID_PROP_MAX	0x1f
 
 #define INPUT_DEVICE_ID_MATCH_BUS	1
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index b6a835d378263..0c2e27d28e0ac 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -888,7 +888,8 @@
 #define SW_LINEIN_INSERT	0x0d  /* set = inserted */
 #define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
 #define SW_PEN_INSERTED		0x0f  /* set = pen inserted */
-#define SW_MAX			0x0f
+#define SW_MACHINE_COVER	0x10  /* set = cover closed */
+#define SW_MAX			0x10
 #define SW_CNT			(SW_MAX+1)
 
 /*
-- 
2.25.1

[PATCH 5.7 111/179] ARM: dts: n900: remove mmc1 card detect gpio

[Greg Kroah-Hartman]

From: Merlijn Wajer <merlijn@wizzup.org>

[ Upstream commit ed3e98e919aaaa47e9d9f8a40c3f6f4a22577842 ]

Instead, expose the key via the input framework, as SW_MACHINE_COVER

The chip-detect GPIO is actually detecting if the cover is closed.
Technically it's possible to use the SD card with open cover. The
only downside is risk of battery falling out and user being able
to physically remove the card.

The behaviour of SD card not being available when the device is
open is unexpected and creates more problems than it solves. There
is a high chance, that more people accidentally break their rootfs
by opening the case without physically removing the card.

Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
Link: https://lore.kernel.org/r/20200612125402.18393-3-merlijn@wizzup.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap3-n900.dts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 4089d97405c95..3dbcae3d60d28 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -105,6 +105,14 @@
 			linux,code = <SW_FRONT_PROXIMITY>;
 			linux,can-disable;
 		};
+
+		machine_cover {
+			label = "Machine Cover";
+			gpios = <&gpio6 0 GPIO_ACTIVE_LOW>; /* 160 */
+			linux,input-type = <EV_SW>;
+			linux,code = <SW_MACHINE_COVER>;
+			linux,can-disable;
+		};
 	};
 
 	isp1707: isp1707 {
@@ -819,10 +827,6 @@
 	pinctrl-0 = <&mmc1_pins>;
 	vmmc-supply = <&vmmc1>;
 	bus-width = <4>;
-	/* For debugging, it is often good idea to remove this GPIO.
-	   It means you can remove back cover (to reboot by removing
-	   battery) and still use the MMC card. */
-	cd-gpios = <&gpio6 0 GPIO_ACTIVE_LOW>; /* 160 */
 };
 
 /* most boards use vaux3, only some old versions use vmmc2 instead */
-- 
2.25.1

[PATCH 5.7 112/179] spi: mediatek: use correct SPI_CFG2_REG MACRO

[Greg Kroah-Hartman]

From: leilk.liu <leilk.liu@mediatek.com>

[ Upstream commit 44b37eb79e16a56cb30ba55b2da452396b941e7a ]

this patch use correct SPI_CFG2_REG offset.

Signed-off-by: leilk.liu <leilk.liu@mediatek.com>
Link: https://lore.kernel.org/r/20200701090020.7935-1-leilk.liu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-mt65xx.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 6783e12c40c22..a556795caeef4 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -36,7 +36,6 @@
 #define SPI_CFG0_SCK_LOW_OFFSET           8
 #define SPI_CFG0_CS_HOLD_OFFSET           16
 #define SPI_CFG0_CS_SETUP_OFFSET          24
-#define SPI_ADJUST_CFG0_SCK_LOW_OFFSET    16
 #define SPI_ADJUST_CFG0_CS_HOLD_OFFSET    0
 #define SPI_ADJUST_CFG0_CS_SETUP_OFFSET   16
 
@@ -48,6 +47,8 @@
 #define SPI_CFG1_CS_IDLE_MASK             0xff
 #define SPI_CFG1_PACKET_LOOP_MASK         0xff00
 #define SPI_CFG1_PACKET_LENGTH_MASK       0x3ff0000
+#define SPI_CFG2_SCK_HIGH_OFFSET          0
+#define SPI_CFG2_SCK_LOW_OFFSET           16
 
 #define SPI_CMD_ACT                  BIT(0)
 #define SPI_CMD_RESUME               BIT(1)
@@ -283,7 +284,7 @@ static void mtk_spi_set_cs(struct spi_device *spi, bool enable)
 static void mtk_spi_prepare_transfer(struct spi_master *master,
 				     struct spi_transfer *xfer)
 {
-	u32 spi_clk_hz, div, sck_time, cs_time, reg_val = 0;
+	u32 spi_clk_hz, div, sck_time, cs_time, reg_val;
 	struct mtk_spi *mdata = spi_master_get_devdata(master);
 
 	spi_clk_hz = clk_get_rate(mdata->spi_clk);
@@ -296,18 +297,18 @@ static void mtk_spi_prepare_transfer(struct spi_master *master,
 	cs_time = sck_time * 2;
 
 	if (mdata->dev_comp->enhance_timing) {
+		reg_val = (((sck_time - 1) & 0xffff)
+			   << SPI_CFG2_SCK_HIGH_OFFSET);
 		reg_val |= (((sck_time - 1) & 0xffff)
-			   << SPI_CFG0_SCK_HIGH_OFFSET);
-		reg_val |= (((sck_time - 1) & 0xffff)
-			   << SPI_ADJUST_CFG0_SCK_LOW_OFFSET);
+			   << SPI_CFG2_SCK_LOW_OFFSET);
 		writel(reg_val, mdata->base + SPI_CFG2_REG);
-		reg_val |= (((cs_time - 1) & 0xffff)
+		reg_val = (((cs_time - 1) & 0xffff)
 			   << SPI_ADJUST_CFG0_CS_HOLD_OFFSET);
 		reg_val |= (((cs_time - 1) & 0xffff)
 			   << SPI_ADJUST_CFG0_CS_SETUP_OFFSET);
 		writel(reg_val, mdata->base + SPI_CFG0_REG);
 	} else {
-		reg_val |= (((sck_time - 1) & 0xff)
+		reg_val = (((sck_time - 1) & 0xff)
 			   << SPI_CFG0_SCK_HIGH_OFFSET);
 		reg_val |= (((sck_time - 1) & 0xff) << SPI_CFG0_SCK_LOW_OFFSET);
 		reg_val |= (((cs_time - 1) & 0xff) << SPI_CFG0_CS_HOLD_OFFSET);
-- 
2.25.1

[PATCH 5.7 113/179] regmap: dev_get_regmap_match(): fix string comparison

[Greg Kroah-Hartman]

From: Marc Kleine-Budde <mkl@pengutronix.de>

[ Upstream commit e84861fec32dee8a2e62bbaa52cded6b05a2a456 ]

This function is used by dev_get_regmap() to retrieve a regmap for the
specified device. If the device has more than one regmap, the name parameter
can be used to specify one.

The code here uses a pointer comparison to check for equal strings. This
however will probably always fail, as the regmap->name is allocated via
kstrdup_const() from the regmap's config->name.

Fix this by using strcmp() instead.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20200703103315.267996-1-mkl@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/regmap/regmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 320d23de02c29..927ebde1607be 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1363,7 +1363,7 @@ static int dev_get_regmap_match(struct device *dev, void *res, void *data)
 
 	/* If the user didn't specify a name match any */
 	if (data)
-		return (*r)->name == data;
+		return !strcmp((*r)->name, data);
 	else
 		return 1;
 }
-- 
2.25.1

[PATCH 5.7 114/179] hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow

[Greg Kroah-Hartman]

From: Evgeny Novikov <novikov@ispras.ru>

[ Upstream commit bc4071aafcf4d0535ee423b69167696d6c03207d ]

aspeed_create_fan() reads a pwm_port value using of_property_read_u32().
If pwm_port will be more than ARRAY_SIZE(pwm_port_params), there will be
a buffer overflow in
aspeed_create_pwm_port()->aspeed_set_pwm_port_enable(). The patch fixes
the potential buffer overflow.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Link: https://lore.kernel.org/r/20200703111518.9644-1-novikov@ispras.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/aspeed-pwm-tacho.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index 33fb54845bf6d..3d8239fd66ed6 100644
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -851,6 +851,8 @@ static int aspeed_create_fan(struct device *dev,
 	ret = of_property_read_u32(child, "reg", &pwm_port);
 	if (ret)
 		return ret;
+	if (pwm_port >= ARRAY_SIZE(pwm_port_params))
+		return -EINVAL;
 	aspeed_create_pwm_port(priv, (u8)pwm_port);
 
 	ret = of_property_count_u8_elems(child, "cooling-levels");
-- 
2.25.1

[PATCH 5.7 115/179] dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu

[Greg Kroah-Hartman]

From: Angelo Dureghello <angelo.dureghello@timesys.com>

[ Upstream commit 8678c71c17721e0f771f135967ef0cce8f69ce9a ]

Due to recent fixes in m68k arch-specific I/O accessor macros, this
driver is not working anymore for ColdFire. Fix wrong tcd endianness
removing additional swaps, since edma_writex() functions should already
take care of any eventual swap if needed.

Note, i could only test the change in ColdFire mcf54415 and Vybrid
vf50 / Colibri where i don't see any issue. So, every feedback and
test for all other SoCs involved is really appreciated.

Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Reported-by: kbuild test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20200701225205.1674463-1-angelo.dureghello@timesys.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/fsl-edma-common.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 5697c3622699b..9285884758b27 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -352,26 +352,28 @@ static void fsl_edma_set_tcd_regs(struct fsl_edma_chan *fsl_chan,
 	/*
 	 * TCD parameters are stored in struct fsl_edma_hw_tcd in little
 	 * endian format. However, we need to load the TCD registers in
-	 * big- or little-endian obeying the eDMA engine model endian.
+	 * big- or little-endian obeying the eDMA engine model endian,
+	 * and this is performed from specific edma_write functions
 	 */
 	edma_writew(edma, 0,  &regs->tcd[ch].csr);
-	edma_writel(edma, le32_to_cpu(tcd->saddr), &regs->tcd[ch].saddr);
-	edma_writel(edma, le32_to_cpu(tcd->daddr), &regs->tcd[ch].daddr);
 
-	edma_writew(edma, le16_to_cpu(tcd->attr), &regs->tcd[ch].attr);
-	edma_writew(edma, le16_to_cpu(tcd->soff), &regs->tcd[ch].soff);
+	edma_writel(edma, (s32)tcd->saddr, &regs->tcd[ch].saddr);
+	edma_writel(edma, (s32)tcd->daddr, &regs->tcd[ch].daddr);
 
-	edma_writel(edma, le32_to_cpu(tcd->nbytes), &regs->tcd[ch].nbytes);
-	edma_writel(edma, le32_to_cpu(tcd->slast), &regs->tcd[ch].slast);
+	edma_writew(edma, (s16)tcd->attr, &regs->tcd[ch].attr);
+	edma_writew(edma, tcd->soff, &regs->tcd[ch].soff);
 
-	edma_writew(edma, le16_to_cpu(tcd->citer), &regs->tcd[ch].citer);
-	edma_writew(edma, le16_to_cpu(tcd->biter), &regs->tcd[ch].biter);
-	edma_writew(edma, le16_to_cpu(tcd->doff), &regs->tcd[ch].doff);
+	edma_writel(edma, (s32)tcd->nbytes, &regs->tcd[ch].nbytes);
+	edma_writel(edma, (s32)tcd->slast, &regs->tcd[ch].slast);
 
-	edma_writel(edma, le32_to_cpu(tcd->dlast_sga),
+	edma_writew(edma, (s16)tcd->citer, &regs->tcd[ch].citer);
+	edma_writew(edma, (s16)tcd->biter, &regs->tcd[ch].biter);
+	edma_writew(edma, (s16)tcd->doff, &regs->tcd[ch].doff);
+
+	edma_writel(edma, (s32)tcd->dlast_sga,
 			&regs->tcd[ch].dlast_sga);
 
-	edma_writew(edma, le16_to_cpu(tcd->csr), &regs->tcd[ch].csr);
+	edma_writew(edma, (s16)tcd->csr, &regs->tcd[ch].csr);
 }
 
 static inline
-- 
2.25.1

[PATCH 5.7 116/179] dmaengine: ioat setting ioat timeout as module parameter

[Greg Kroah-Hartman]

From: Leonid Ravich <Leonid.Ravich@emc.com>

[ Upstream commit 87730ccbddcb48478b1b88e88b14e73424130764 ]

DMA transaction time to completion is a function of PCI bandwidth,
transaction size and a queue depth.  So hard coded value for timeouts
might be wrong for some scenarios.

Signed-off-by: Leonid Ravich <Leonid.Ravich@emc.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20200701184816.29138-1-leonid.ravich@dell.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/ioat/dma.c | 12 ++++++++++++
 drivers/dma/ioat/dma.h |  2 --
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 18c011e57592e..8e2a4d1f0be53 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -26,6 +26,18 @@
 
 #include "../dmaengine.h"
 
+int completion_timeout = 200;
+module_param(completion_timeout, int, 0644);
+MODULE_PARM_DESC(completion_timeout,
+		"set ioat completion timeout [msec] (default 200 [msec])");
+int idle_timeout = 2000;
+module_param(idle_timeout, int, 0644);
+MODULE_PARM_DESC(idle_timeout,
+		"set ioat idel timeout [msec] (default 2000 [msec])");
+
+#define IDLE_TIMEOUT msecs_to_jiffies(idle_timeout)
+#define COMPLETION_TIMEOUT msecs_to_jiffies(completion_timeout)
+
 static char *chanerr_str[] = {
 	"DMA Transfer Source Address Error",
 	"DMA Transfer Destination Address Error",
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index b8e8e0b9693c7..4ac9134962f3b 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -99,8 +99,6 @@ struct ioatdma_chan {
 	#define IOAT_RUN 5
 	#define IOAT_CHAN_ACTIVE 6
 	struct timer_list timer;
-	#define COMPLETION_TIMEOUT msecs_to_jiffies(100)
-	#define IDLE_TIMEOUT msecs_to_jiffies(2000)
 	#define RESET_DELAY msecs_to_jiffies(100)
 	struct ioatdma_device *ioat_dma;
 	dma_addr_t completion_dma;
-- 
2.25.1

[PATCH 5.7 117/179] Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen

[Greg Kroah-Hartman]

From: Ilya Katsnelson <me@0upti.me>

[ Upstream commit dcb00fc799dc03fd320e123e4c81b3278c763ea5 ]

Tested on my own laptop, touchpad feels slightly more responsive with
this on, though it might just be placebo.

Signed-off-by: Ilya Katsnelson <me@0upti.me>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20200703143457.132373-1-me@0upti.me
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/mouse/synaptics.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 758dae8d65006..4b81b2d0fe067 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -179,6 +179,7 @@ static const char * const smbus_pnp_ids[] = {
 	"LEN0093", /* T480 */
 	"LEN0096", /* X280 */
 	"LEN0097", /* X280 -> ALPS trackpoint */
+	"LEN0099", /* X1 Extreme 1st */
 	"LEN009b", /* T580 */
 	"LEN200f", /* T450s */
 	"LEN2044", /* L470  */
-- 
2.25.1

[PATCH 5.7 118/179] Input: elan_i2c - only increment wakeup count on touch

[Greg Kroah-Hartman]

From: Derek Basehore <dbasehore@chromium.org>

[ Upstream commit 966334dfc472bdfa67bed864842943b19755d192 ]

This moves the wakeup increment for elan devices to the touch report.
This prevents the drivers from incorrectly reporting a wakeup when the
resume callback resets then device, which causes an interrupt to
occur.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Link: https://lore.kernel.org/r/20200706235046.1984283-1-dbasehore@chromium.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/mouse/elan_i2c_core.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 8719da5403834..196e8505dd8d7 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -951,6 +951,8 @@ static void elan_report_absolute(struct elan_tp_data *data, u8 *packet)
 	u8 hover_info = packet[ETP_HOVER_INFO_OFFSET];
 	bool contact_valid, hover_event;
 
+	pm_wakeup_event(&data->client->dev, 0);
+
 	hover_event = hover_info & 0x40;
 	for (i = 0; i < ETP_MAX_FINGERS; i++) {
 		contact_valid = tp_info & (1U << (3 + i));
@@ -974,6 +976,8 @@ static void elan_report_trackpoint(struct elan_tp_data *data, u8 *report)
 	u8 *packet = &report[ETP_REPORT_ID_OFFSET + 1];
 	int x, y;
 
+	pm_wakeup_event(&data->client->dev, 0);
+
 	if (!data->tp_input) {
 		dev_warn_once(&data->client->dev,
 			      "received a trackpoint report while no trackpoint device has been created. Please report upstream.\n");
@@ -998,7 +1002,6 @@ static void elan_report_trackpoint(struct elan_tp_data *data, u8 *report)
 static irqreturn_t elan_isr(int irq, void *dev_id)
 {
 	struct elan_tp_data *data = dev_id;
-	struct device *dev = &data->client->dev;
 	int error;
 	u8 report[ETP_MAX_REPORT_LEN];
 
@@ -1016,8 +1019,6 @@ static irqreturn_t elan_isr(int irq, void *dev_id)
 	if (error)
 		goto out;
 
-	pm_wakeup_event(dev, 0);
-
 	switch (report[ETP_REPORT_ID_OFFSET]) {
 	case ETP_REPORT_ID:
 		elan_report_absolute(data, report);
@@ -1026,7 +1027,7 @@ static irqreturn_t elan_isr(int irq, void *dev_id)
 		elan_report_trackpoint(data, report);
 		break;
 	default:
-		dev_err(dev, "invalid report id data (%x)\n",
+		dev_err(&data->client->dev, "invalid report id data (%x)\n",
 			report[ETP_REPORT_ID_OFFSET]);
 	}
 
-- 
2.25.1

[PATCH 5.7 119/179] usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant

[Greg Kroah-Hartman]

From: Heikki Krogerus <heikki.krogerus@linux.intel.com>

[ Upstream commit c3f595a8119207cc0f82b3dc6ec5bbf6f3e6b135 ]

This patch adds the necessary PCI ID for TGP-H devices.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-pci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 96c05b121fac8..47b7e83d90626 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -38,6 +38,7 @@
 #define PCI_DEVICE_ID_INTEL_ICLLP		0x34ee
 #define PCI_DEVICE_ID_INTEL_EHLLP		0x4b7e
 #define PCI_DEVICE_ID_INTEL_TGPLP		0xa0ee
+#define PCI_DEVICE_ID_INTEL_TGPH		0x43ee
 
 #define PCI_INTEL_BXT_DSM_GUID		"732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
 #define PCI_INTEL_BXT_FUNC_PMU_PWR	4
@@ -358,6 +359,9 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPLP),
 	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
 
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPH),
+	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
+
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB),
 	  (kernel_ulong_t) &dwc3_pci_amd_properties, },
 	{  }	/* Terminating Entry */
-- 
2.25.1

[PATCH 5.7 120/179] usb: dwc3: pci: add support for the Intel Jasper Lake

[Greg Kroah-Hartman]

From: Heikki Krogerus <heikki.krogerus@linux.intel.com>

[ Upstream commit e25d1e8532c3d84f075deca1580a7d61e0f43ce6 ]

This patch adds the necessary PCI ID for Intel Jasper Lake
devices.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-pci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 47b7e83d90626..139474c3e77b1 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -39,6 +39,7 @@
 #define PCI_DEVICE_ID_INTEL_EHLLP		0x4b7e
 #define PCI_DEVICE_ID_INTEL_TGPLP		0xa0ee
 #define PCI_DEVICE_ID_INTEL_TGPH		0x43ee
+#define PCI_DEVICE_ID_INTEL_JSP			0x4dee
 
 #define PCI_INTEL_BXT_DSM_GUID		"732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
 #define PCI_INTEL_BXT_FUNC_PMU_PWR	4
@@ -362,6 +363,9 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPH),
 	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
 
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_JSP),
+	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
+
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB),
 	  (kernel_ulong_t) &dwc3_pci_amd_properties, },
 	{  }	/* Terminating Entry */
-- 
2.25.1

[PATCH 5.7 121/179] usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()

[Greg Kroah-Hartman]

From: Evgeny Novikov <novikov@ispras.ru>

[ Upstream commit c8f8529e2c4141afa2ebb487ad48e8a6ec3e8c99 ]

gr_ep_init() does not assign the allocated request anywhere if allocation
of memory for the buffer fails. This is a memory leak fixed by the given
patch.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/gr_udc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index aaf975c809bf9..ecf874dee9962 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -1981,9 +1981,12 @@ static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit)
 
 	if (num == 0) {
 		_req = gr_alloc_request(&ep->ep, GFP_ATOMIC);
+		if (!_req)
+			return -ENOMEM;
+
 		buf = devm_kzalloc(dev->dev, PAGE_SIZE, GFP_DMA | GFP_ATOMIC);
-		if (!_req || !buf) {
-			/* possible _req freed by gr_probe via gr_remove */
+		if (!buf) {
+			gr_free_request(&ep->ep, _req);
 			return -ENOMEM;
 		}
 
-- 
2.25.1

[PATCH 5.7 122/179] usb: cdns3: ep0: fix some endian issues

[Greg Kroah-Hartman]

From: Peter Chen <peter.chen@nxp.com>

[ Upstream commit 9f81d45c79271def8a9b90447b04b9c6323291f9 ]

It is found by sparse.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/cdns3/ep0.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/cdns3/ep0.c b/drivers/usb/cdns3/ep0.c
index da4c5eb03d7ee..666cebd9c5f29 100644
--- a/drivers/usb/cdns3/ep0.c
+++ b/drivers/usb/cdns3/ep0.c
@@ -37,18 +37,18 @@ static void cdns3_ep0_run_transfer(struct cdns3_device *priv_dev,
 	struct cdns3_usb_regs __iomem *regs = priv_dev->regs;
 	struct cdns3_endpoint *priv_ep = priv_dev->eps[0];
 
-	priv_ep->trb_pool[0].buffer = TRB_BUFFER(dma_addr);
-	priv_ep->trb_pool[0].length = TRB_LEN(length);
+	priv_ep->trb_pool[0].buffer = cpu_to_le32(TRB_BUFFER(dma_addr));
+	priv_ep->trb_pool[0].length = cpu_to_le32(TRB_LEN(length));
 
 	if (zlp) {
-		priv_ep->trb_pool[0].control = TRB_CYCLE | TRB_TYPE(TRB_NORMAL);
-		priv_ep->trb_pool[1].buffer = TRB_BUFFER(dma_addr);
-		priv_ep->trb_pool[1].length = TRB_LEN(0);
-		priv_ep->trb_pool[1].control = TRB_CYCLE | TRB_IOC |
-		    TRB_TYPE(TRB_NORMAL);
+		priv_ep->trb_pool[0].control = cpu_to_le32(TRB_CYCLE | TRB_TYPE(TRB_NORMAL));
+		priv_ep->trb_pool[1].buffer = cpu_to_le32(TRB_BUFFER(dma_addr));
+		priv_ep->trb_pool[1].length = cpu_to_le32(TRB_LEN(0));
+		priv_ep->trb_pool[1].control = cpu_to_le32(TRB_CYCLE | TRB_IOC |
+		    TRB_TYPE(TRB_NORMAL));
 	} else {
-		priv_ep->trb_pool[0].control = TRB_CYCLE | TRB_IOC |
-		    TRB_TYPE(TRB_NORMAL);
+		priv_ep->trb_pool[0].control = cpu_to_le32(TRB_CYCLE | TRB_IOC |
+		    TRB_TYPE(TRB_NORMAL));
 		priv_ep->trb_pool[1].control = 0;
 	}
 
@@ -264,11 +264,11 @@ static int cdns3_req_ep0_get_status(struct cdns3_device *priv_dev,
 	case USB_RECIP_INTERFACE:
 		return cdns3_ep0_delegate_req(priv_dev, ctrl);
 	case USB_RECIP_ENDPOINT:
-		index = cdns3_ep_addr_to_index(ctrl->wIndex);
+		index = cdns3_ep_addr_to_index(le16_to_cpu(ctrl->wIndex));
 		priv_ep = priv_dev->eps[index];
 
 		/* check if endpoint is stalled or stall is pending */
-		cdns3_select_ep(priv_dev, ctrl->wIndex);
+		cdns3_select_ep(priv_dev, le16_to_cpu(ctrl->wIndex));
 		if (EP_STS_STALL(readl(&priv_dev->regs->ep_sts)) ||
 		    (priv_ep->flags & EP_STALL_PENDING))
 			usb_status =  BIT(USB_ENDPOINT_HALT);
@@ -388,10 +388,10 @@ static int cdns3_ep0_feature_handle_endpoint(struct cdns3_device *priv_dev,
 	if (!(ctrl->wIndex & ~USB_DIR_IN))
 		return 0;
 
-	index = cdns3_ep_addr_to_index(ctrl->wIndex);
+	index = cdns3_ep_addr_to_index(le16_to_cpu(ctrl->wIndex));
 	priv_ep = priv_dev->eps[index];
 
-	cdns3_select_ep(priv_dev, ctrl->wIndex);
+	cdns3_select_ep(priv_dev, le16_to_cpu(ctrl->wIndex));
 
 	if (set)
 		__cdns3_gadget_ep_set_halt(priv_ep);
@@ -452,7 +452,7 @@ static int cdns3_req_ep0_set_sel(struct cdns3_device *priv_dev,
 	if (priv_dev->gadget.state < USB_STATE_ADDRESS)
 		return -EINVAL;
 
-	if (ctrl_req->wLength != 6) {
+	if (le16_to_cpu(ctrl_req->wLength) != 6) {
 		dev_err(priv_dev->dev, "Set SEL should be 6 bytes, got %d\n",
 			ctrl_req->wLength);
 		return -EINVAL;
@@ -476,7 +476,7 @@ static int cdns3_req_ep0_set_isoch_delay(struct cdns3_device *priv_dev,
 	if (ctrl_req->wIndex || ctrl_req->wLength)
 		return -EINVAL;
 
-	priv_dev->isoch_delay = ctrl_req->wValue;
+	priv_dev->isoch_delay = le16_to_cpu(ctrl_req->wValue);
 
 	return 0;
 }
-- 
2.25.1

[PATCH 5.7 123/179] usb: cdns3: trace: fix some endian issues

[Greg Kroah-Hartman]

From: Peter Chen <peter.chen@nxp.com>

[ Upstream commit 65b7cf48c211ece5e2560a334eb9608e48775a8f ]

It is found by sparse.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/cdns3/trace.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/cdns3/trace.h b/drivers/usb/cdns3/trace.h
index 755c565822575..0a2a3269bfac6 100644
--- a/drivers/usb/cdns3/trace.h
+++ b/drivers/usb/cdns3/trace.h
@@ -404,9 +404,9 @@ DECLARE_EVENT_CLASS(cdns3_log_trb,
 	TP_fast_assign(
 		__assign_str(name, priv_ep->name);
 		__entry->trb = trb;
-		__entry->buffer = trb->buffer;
-		__entry->length = trb->length;
-		__entry->control = trb->control;
+		__entry->buffer = le32_to_cpu(trb->buffer);
+		__entry->length = le32_to_cpu(trb->length);
+		__entry->control = le32_to_cpu(trb->control);
 		__entry->type = usb_endpoint_type(priv_ep->endpoint.desc);
 		__entry->last_stream_id = priv_ep->last_stream_id;
 	),
-- 
2.25.1

[PATCH 5.7 124/179] hwmon: (adm1275) Make sure we are reading enough data for different chips

[Greg Kroah-Hartman]

From: Chu Lin <linchuyuan@google.com>

[ Upstream commit 6d1d41c075a1a54ba03370e268171fec20e06563 ]

Issue:
When PEC is enabled, binding adm1272 to the adm1275 would
fail due to PEC error. See below:
adm1275: probe of xxxx failed with error -74

Diagnosis:
Per the datasheet of adm1272, adm1278, adm1293 and amd1294,
PMON_CONFIG (0xd4) is 16bits wide. On the other hand,
PMON_CONFIG (0xd4) for adm1275 is 8bits wide. The driver should not
assume everything is 8bits wide and read only 8bits from it.

Solution:
If it is adm1272, adm1278, adm1293 and adm1294, use i2c_read_word.
Else, use i2c_read_byte

Testing:
Binding adm1272 to the driver.
The change is only tested on adm1272.

Signed-off-by: Chu Lin <linchuyuan@google.com>
Link: https://lore.kernel.org/r/20200709040612.3977094-1-linchuyuan@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pmbus/adm1275.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index e25f541227dae..19317575d1c6a 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -465,6 +465,7 @@ MODULE_DEVICE_TABLE(i2c, adm1275_id);
 static int adm1275_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	s32 (*config_read_fn)(const struct i2c_client *client, u8 reg);
 	u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
 	int config, device_config;
 	int ret;
@@ -510,11 +511,16 @@ static int adm1275_probe(struct i2c_client *client,
 			   "Device mismatch: Configured %s, detected %s\n",
 			   id->name, mid->name);
 
-	config = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG);
+	if (mid->driver_data == adm1272 || mid->driver_data == adm1278 ||
+	    mid->driver_data == adm1293 || mid->driver_data == adm1294)
+		config_read_fn = i2c_smbus_read_word_data;
+	else
+		config_read_fn = i2c_smbus_read_byte_data;
+	config = config_read_fn(client, ADM1275_PMON_CONFIG);
 	if (config < 0)
 		return config;
 
-	device_config = i2c_smbus_read_byte_data(client, ADM1275_DEVICE_CONFIG);
+	device_config = config_read_fn(client, ADM1275_DEVICE_CONFIG);
 	if (device_config < 0)
 		return device_config;
 
-- 
2.25.1

[PATCH 5.7 125/179] drm/amdgpu/gfx10: fix race condition for kiq

[Greg Kroah-Hartman]

From: Jack Xiao <Jack.Xiao@amd.com>

[ Upstream commit 7d65a577bb58d4f27a3398a4c0cb0b00ab7d0511 ]

During preemption test for gfx10, it uses kiq to trigger
gfx preemption, which would result in race condition
with flushing TLB for kiq.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 0e0daf0021b60..ff94f756978d5 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4746,12 +4746,17 @@ static int gfx_v10_0_ring_preempt_ib(struct amdgpu_ring *ring)
 	struct amdgpu_device *adev = ring->adev;
 	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 	struct amdgpu_ring *kiq_ring = &kiq->ring;
+	unsigned long flags;
 
 	if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
 		return -EINVAL;
 
-	if (amdgpu_ring_alloc(kiq_ring, kiq->pmf->unmap_queues_size))
+	spin_lock_irqsave(&kiq->ring_lock, flags);
+
+	if (amdgpu_ring_alloc(kiq_ring, kiq->pmf->unmap_queues_size)) {
+		spin_unlock_irqrestore(&kiq->ring_lock, flags);
 		return -ENOMEM;
+	}
 
 	/* assert preemption condition */
 	amdgpu_ring_set_preempt_cond_exec(ring, false);
@@ -4762,6 +4767,8 @@ static int gfx_v10_0_ring_preempt_ib(struct amdgpu_ring *ring)
 				   ++ring->trail_seq);
 	amdgpu_ring_commit(kiq_ring);
 
+	spin_unlock_irqrestore(&kiq->ring_lock, flags);
+
 	/* poll the trailing fence */
 	for (i = 0; i < adev->usec_timeout; i++) {
 		if (ring->trail_seq ==
-- 
2.25.1

[PATCH 5.7 126/179] drm/amdgpu: fix preemption unit test

[Greg Kroah-Hartman]

From: Jack Xiao <Jack.Xiao@amd.com>

[ Upstream commit d845a2051b6b673fab4229b920ea04c7c4352b51 ]

Remove signaled jobs from job list and ensure the
job was indeed preempted.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index c0f9a651dc067..92b18c4760e55 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1156,27 +1156,37 @@ static void amdgpu_ib_preempt_job_recovery(struct drm_gpu_scheduler *sched)
 static void amdgpu_ib_preempt_mark_partial_job(struct amdgpu_ring *ring)
 {
 	struct amdgpu_job *job;
-	struct drm_sched_job *s_job;
+	struct drm_sched_job *s_job, *tmp;
 	uint32_t preempt_seq;
 	struct dma_fence *fence, **ptr;
 	struct amdgpu_fence_driver *drv = &ring->fence_drv;
 	struct drm_gpu_scheduler *sched = &ring->sched;
+	bool preempted = true;
 
 	if (ring->funcs->type != AMDGPU_RING_TYPE_GFX)
 		return;
 
 	preempt_seq = le32_to_cpu(*(drv->cpu_addr + 2));
-	if (preempt_seq <= atomic_read(&drv->last_seq))
-		return;
+	if (preempt_seq <= atomic_read(&drv->last_seq)) {
+		preempted = false;
+		goto no_preempt;
+	}
 
 	preempt_seq &= drv->num_fences_mask;
 	ptr = &drv->fences[preempt_seq];
 	fence = rcu_dereference_protected(*ptr, 1);
 
+no_preempt:
 	spin_lock(&sched->job_list_lock);
-	list_for_each_entry(s_job, &sched->ring_mirror_list, node) {
+	list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, node) {
+		if (dma_fence_is_signaled(&s_job->s_fence->finished)) {
+			/* remove job from ring_mirror_list */
+			list_del_init(&s_job->node);
+			sched->ops->free_job(s_job);
+			continue;
+		}
 		job = to_amdgpu_job(s_job);
-		if (job->fence == fence)
+		if (preempted && job->fence == fence)
 			/* mark the job as preempted */
 			job->preemption_status |= AMDGPU_IB_PREEMPTED;
 	}
-- 
2.25.1

[PATCH 5.7 127/179] hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D

[Greg Kroah-Hartman]

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 8a03746c8baf82e1616f05a1a716d34378dcf780 ]

Stefan Dietrich reports invalid temperature source messages on Asus Formula
XII Z490.

nct6775 nct6775.656: Invalid temperature source 28 at index 0,
		source register 0x100, temp register 0x73

Debugging suggests that temperature source 28 reports the CPU temperature.
Let's assume that temperature sources 28 and 29 reflect "PECI Agent {0,1}
Calibration", similar to other chips of the series.

Reported-by: Stefan Dietrich <roots@gmx.de>
Cc: Stefan Dietrich <roots@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/nct6775.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 7efa6bfef0609..ba9b96973e808 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -786,13 +786,13 @@ static const char *const nct6798_temp_label[] = {
 	"Agent1 Dimm1",
 	"BYTE_TEMP0",
 	"BYTE_TEMP1",
-	"",
-	"",
+	"PECI Agent 0 Calibration",	/* undocumented */
+	"PECI Agent 1 Calibration",	/* undocumented */
 	"",
 	"Virtual_TEMP"
 };
 
-#define NCT6798_TEMP_MASK	0x8fff0ffe
+#define NCT6798_TEMP_MASK	0xbfff0ffe
 #define NCT6798_VIRT_TEMP_MASK	0x80000c00
 
 /* NCT6102D/NCT6106D specific data */
-- 
2.25.1

[PATCH 5.7 128/179] platform/x86: ISST: Add new PCI device ids

[Greg Kroah-Hartman]

From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

[ Upstream commit e1eea3f839f41368d7cb4eb2d872d5b288677e94 ]

Added new PCI device ids for supporting mailbox and MMIO interface for
Sapphire Rapids.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/intel_speed_select_if/isst_if_common.h   | 3 +++
 drivers/platform/x86/intel_speed_select_if/isst_if_mbox_pci.c | 1 +
 drivers/platform/x86/intel_speed_select_if/isst_if_mmio.c     | 1 +
 3 files changed, 5 insertions(+)

diff --git a/drivers/platform/x86/intel_speed_select_if/isst_if_common.h b/drivers/platform/x86/intel_speed_select_if/isst_if_common.h
index 1409a5bb55820..4f6f7f0761fc1 100644
--- a/drivers/platform/x86/intel_speed_select_if/isst_if_common.h
+++ b/drivers/platform/x86/intel_speed_select_if/isst_if_common.h
@@ -13,6 +13,9 @@
 #define INTEL_RAPL_PRIO_DEVID_0	0x3451
 #define INTEL_CFG_MBOX_DEVID_0	0x3459
 
+#define INTEL_RAPL_PRIO_DEVID_1 0x3251
+#define INTEL_CFG_MBOX_DEVID_1  0x3259
+
 /*
  * Validate maximum commands in a single request.
  * This is enough to handle command to every core in one ioctl, or all
diff --git a/drivers/platform/x86/intel_speed_select_if/isst_if_mbox_pci.c b/drivers/platform/x86/intel_speed_select_if/isst_if_mbox_pci.c
index de4169d0796bd..9a055fd54053f 100644
--- a/drivers/platform/x86/intel_speed_select_if/isst_if_mbox_pci.c
+++ b/drivers/platform/x86/intel_speed_select_if/isst_if_mbox_pci.c
@@ -148,6 +148,7 @@ static long isst_if_mbox_proc_cmd(u8 *cmd_ptr, int *write_only, int resume)
 
 static const struct pci_device_id isst_if_mbox_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, INTEL_CFG_MBOX_DEVID_0)},
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, INTEL_CFG_MBOX_DEVID_1)},
 	{ 0 },
 };
 MODULE_DEVICE_TABLE(pci, isst_if_mbox_ids);
diff --git a/drivers/platform/x86/intel_speed_select_if/isst_if_mmio.c b/drivers/platform/x86/intel_speed_select_if/isst_if_mmio.c
index 3584859fcc421..aa17fd7817f8f 100644
--- a/drivers/platform/x86/intel_speed_select_if/isst_if_mmio.c
+++ b/drivers/platform/x86/intel_speed_select_if/isst_if_mmio.c
@@ -72,6 +72,7 @@ static long isst_if_mmio_rd_wr(u8 *cmd_ptr, int *write_only, int resume)
 
 static const struct pci_device_id isst_if_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, INTEL_RAPL_PRIO_DEVID_0)},
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, INTEL_RAPL_PRIO_DEVID_1)},
 	{ 0 },
 };
 MODULE_DEVICE_TABLE(pci, isst_if_ids);
-- 
2.25.1

[PATCH 5.7 129/179] platform/x86: asus-wmi: allow BAT1 battery name

[Greg Kroah-Hartman]

From: Vasiliy Kupriakov <rublag-ns@yandex.ru>

[ Upstream commit 9a33e375d98ece5ea40c576eabd3257acb90c509 ]

The battery on my laptop ASUS TUF Gaming FX706II is named BAT1.
This patch allows battery extension to load.

Signed-off-by: Vasiliy Kupriakov <rublag-ns@yandex.ru>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/asus-wmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index cd212ee210e2d..537b824a1ae25 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -432,6 +432,7 @@ static int asus_wmi_battery_add(struct power_supply *battery)
 	 * battery is named BATT.
 	 */
 	if (strcmp(battery->desc->name, "BAT0") != 0 &&
+	    strcmp(battery->desc->name, "BAT1") != 0 &&
 	    strcmp(battery->desc->name, "BATT") != 0)
 		return -ENODEV;
 
-- 
2.25.1

[PATCH 5.7 130/179] hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe()

[Greg Kroah-Hartman]

From: Cristian Marussi <cristian.marussi@arm.com>

[ Upstream commit 3ce17cd2b94907f6d91b81b32848044b84c97606 ]

SMATCH detected a potential buffer overflow in the manipulation of
hwmon_attributes array inside the scmi_hwmon_probe function:

drivers/hwmon/scmi-hwmon.c:226
 scmi_hwmon_probe() error: buffer overflow 'hwmon_attributes' 6 <= 9

Fix it by statically declaring the size of the array as the maximum
possible as defined by hwmon_max define.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200715121338.GA18761@e119603-lin.cambridge.arm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/scmi-hwmon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/scmi-hwmon.c b/drivers/hwmon/scmi-hwmon.c
index 286d3cfda7de8..d421e691318b3 100644
--- a/drivers/hwmon/scmi-hwmon.c
+++ b/drivers/hwmon/scmi-hwmon.c
@@ -147,7 +147,7 @@ static enum hwmon_sensor_types scmi_types[] = {
 	[ENERGY] = hwmon_energy,
 };
 
-static u32 hwmon_attributes[] = {
+static u32 hwmon_attributes[hwmon_max] = {
 	[hwmon_chip] = HWMON_C_REGISTER_TZ,
 	[hwmon_temp] = HWMON_T_INPUT | HWMON_T_LABEL,
 	[hwmon_in] = HWMON_I_INPUT | HWMON_I_LABEL,
-- 
2.25.1

[PATCH 5.7 131/179] ALSA: hda/realtek - fixup for yet another Intel reference board

[Greg Kroah-Hartman]

From: PeiSen Hou <pshou@realtek.com.tw>

[ Upstream commit 5734e509d5d515c187f642937ef2de1e58d7715d ]

Add headset_jack for the intel reference board support with
10ec:1230.

Signed-off-by: PeiSen Hou <pshou@realtek.com.tw>
Link: https://lore.kernel.org/r/20200716090134.9811-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 65a8ffef2aff4..27dd8945d6e6d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7546,6 +7546,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x10cf, 0x1629, "Lifebook U7x7", ALC255_FIXUP_LIFEBOOK_U7x7_HEADSET_MIC),
 	SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC),
 	SND_PCI_QUIRK(0x10ec, 0x10f2, "Intel Reference board", ALC700_FIXUP_INTEL_REFERENCE),
+	SND_PCI_QUIRK(0x10ec, 0x1230, "Intel Reference board", ALC225_FIXUP_HEADSET_JACK),
 	SND_PCI_QUIRK(0x10f7, 0x8338, "Panasonic CF-SZ6", ALC269_FIXUP_HEADSET_MODE),
 	SND_PCI_QUIRK(0x144d, 0xc109, "Samsung Ativ book 9 (NP900X3G)", ALC269_FIXUP_INV_DMIC),
 	SND_PCI_QUIRK(0x144d, 0xc169, "Samsung Notebook 9 Pen (NP930SBE-K01US)", ALC298_FIXUP_SAMSUNG_HEADPHONE_VERY_QUIET),
-- 
2.25.1

[PATCH 5.7 132/179] drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling

[Greg Kroah-Hartman]

From: Qi Liu <liuqi115@huawei.com>

[ Upstream commit bdc5c744c7b6457d18a95c26769dad0e7f480a08 ]

When users try to remove PMU modules during perf sampling, kernel panic
will happen because the pmu->read() is a NULL pointer here.

INFO on HiSilicon hip08 platform as follow:
pc : hisi_uncore_pmu_event_update+0x30/0xa4 [hisi_uncore_pmu]
lr : hisi_uncore_pmu_read+0x20/0x2c [hisi_uncore_pmu]
sp : ffff800010103e90
x29: ffff800010103e90 x28: ffff0027db0c0e40
x27: ffffa29a76f129d8 x26: ffffa29a77ceb000
x25: ffffa29a773a5000 x24: ffffa29a77392000
x23: ffffddffe5943f08 x22: ffff002784285960
x21: ffff002784285800 x20: ffff0027d2e76c80
x19: ffff0027842859e0 x18: ffff80003498bcc8
x17: ffffa29a76afe910 x16: ffffa29a7583f530
x15: 16151a1512061a1e x14: 0000000000000000
x13: ffffa29a76f1e238 x12: 0000000000000001
x11: 0000000000000400 x10: 00000000000009f0
x9 : ffff8000107b3e70 x8 : ffff0027db0c1890
x7 : ffffa29a773a7000 x6 : 00000007f5131013
x5 : 00000007f5131013 x4 : 09f257d417c00000
x3 : 00000002187bd7ce x2 : ffffa29a38f0f0d8
x1 : ffffa29a38eae268 x0 : ffff0027d2e76c80
Call trace:
hisi_uncore_pmu_event_update+0x30/0xa4 [hisi_uncore_pmu]
hisi_uncore_pmu_read+0x20/0x2c [hisi_uncore_pmu]
__perf_event_read+0x1a0/0x1f8
flush_smp_call_function_queue+0xa0/0x160
generic_smp_call_function_single_interrupt+0x18/0x20
handle_IPI+0x31c/0x4dc
gic_handle_irq+0x2c8/0x310
el1_irq+0xcc/0x180
arch_cpu_idle+0x4c/0x20c
default_idle_call+0x20/0x30
do_idle+0x1b4/0x270
cpu_startup_entry+0x28/0x30
secondary_start_kernel+0x1a4/0x1fc

To solve the above issue, current module should be registered to kernel,
so that try_module_get() can be invoked when perf sampling starts. This
adds the reference counting of module and could prevent users from removing
modules during sampling.

Reported-by: Haifeng Wang <wang.wanghaifeng@huawei.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594891165-8228-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/perf/arm_smmuv3_pmu.c                 | 1 +
 drivers/perf/fsl_imx8_ddr_perf.c              | 1 +
 drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 1 +
 drivers/perf/hisilicon/hisi_uncore_hha_pmu.c  | 1 +
 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c  | 1 +
 5 files changed, 5 insertions(+)

diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index 48e28ef93a702..90caba56dfbc1 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -742,6 +742,7 @@ static int smmu_pmu_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, smmu_pmu);
 
 	smmu_pmu->pmu = (struct pmu) {
+		.module		= THIS_MODULE,
 		.task_ctx_nr    = perf_invalid_context,
 		.pmu_enable	= smmu_pmu_enable,
 		.pmu_disable	= smmu_pmu_disable,
diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 90884d14f95fa..2aed2d96f8ae7 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -512,6 +512,7 @@ static int ddr_perf_init(struct ddr_pmu *pmu, void __iomem *base,
 {
 	*pmu = (struct ddr_pmu) {
 		.pmu = (struct pmu) {
+			.module	      = THIS_MODULE,
 			.capabilities = PERF_PMU_CAP_NO_EXCLUDE,
 			.task_ctx_nr = perf_invalid_context,
 			.attr_groups = attr_groups,
diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
index 453f1c6a16ca8..c65da06abb041 100644
--- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
@@ -378,6 +378,7 @@ static int hisi_ddrc_pmu_probe(struct platform_device *pdev)
 			      ddrc_pmu->sccl_id, ddrc_pmu->index_id);
 	ddrc_pmu->pmu = (struct pmu) {
 		.name		= name,
+		.module		= THIS_MODULE,
 		.task_ctx_nr	= perf_invalid_context,
 		.event_init	= hisi_uncore_pmu_event_init,
 		.pmu_enable	= hisi_uncore_pmu_enable,
diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
index e5af9d7e6e145..ee6e6a1c390a0 100644
--- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
@@ -390,6 +390,7 @@ static int hisi_hha_pmu_probe(struct platform_device *pdev)
 			      hha_pmu->sccl_id, hha_pmu->index_id);
 	hha_pmu->pmu = (struct pmu) {
 		.name		= name,
+		.module		= THIS_MODULE,
 		.task_ctx_nr	= perf_invalid_context,
 		.event_init	= hisi_uncore_pmu_event_init,
 		.pmu_enable	= hisi_uncore_pmu_enable,
diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index 479de4be99eba..c8b98d3a8432a 100644
--- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -380,6 +380,7 @@ static int hisi_l3c_pmu_probe(struct platform_device *pdev)
 			      l3c_pmu->sccl_id, l3c_pmu->index_id);
 	l3c_pmu->pmu = (struct pmu) {
 		.name		= name,
+		.module		= THIS_MODULE,
 		.task_ctx_nr	= perf_invalid_context,
 		.event_init	= hisi_uncore_pmu_event_init,
 		.pmu_enable	= hisi_uncore_pmu_enable,
-- 
2.25.1

[PATCH 5.7 133/179] arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP

[Greg Kroah-Hartman]

From: Will Deacon <will@kernel.org>

[ Upstream commit 5afc78551bf5d53279036e0bf63314e35631d79f ]

Rather than open-code test_tsk_thread_flag() at each callsite, simply
replace the couple of offenders with calls to test_tsk_thread_flag()
directly.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kernel/debug-monitors.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 7569deb1eac17..d64a3c1e1b6ba 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -396,14 +396,14 @@ void user_rewind_single_step(struct task_struct *task)
 	 * If single step is active for this thread, then set SPSR.SS
 	 * to 1 to avoid returning to the active-pending state.
 	 */
-	if (test_ti_thread_flag(task_thread_info(task), TIF_SINGLESTEP))
+	if (test_tsk_thread_flag(task, TIF_SINGLESTEP))
 		set_regs_spsr_ss(task_pt_regs(task));
 }
 NOKPROBE_SYMBOL(user_rewind_single_step);
 
 void user_fastforward_single_step(struct task_struct *task)
 {
-	if (test_ti_thread_flag(task_thread_info(task), TIF_SINGLESTEP))
+	if (test_tsk_thread_flag(task, TIF_SINGLESTEP))
 		clear_regs_spsr_ss(task_pt_regs(task));
 }
 
-- 
2.25.1

[PATCH 5.7 134/179] x86: math-emu: Fix up cmp insn for clang ias

[Greg Kroah-Hartman]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 81e96851ea32deb2c921c870eecabf335f598aeb ]

The clang integrated assembler requires the 'cmp' instruction to
have a length prefix here:

arch/x86/math-emu/wm_sqrt.S:212:2: error: ambiguous instructions require an explicit suffix (could be 'cmpb', 'cmpw', or 'cmpl')
 cmp $0xffffffff,-24(%ebp)
 ^

Make this a 32-bit comparison, which it was clearly meant to be.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lkml.kernel.org/r/20200527135352.1198078-1-arnd@arndb.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/math-emu/wm_sqrt.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index 3b2b58164ec18..40526dd85137b 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -209,7 +209,7 @@ sqrt_stage_2_finish:
 
 #ifdef PARANOID
 /* It should be possible to get here only if the arg is ffff....ffff */
-	cmp	$0xffffffff,FPU_fsqrt_arg_1
+	cmpl	$0xffffffff,FPU_fsqrt_arg_1
 	jnz	sqrt_stage_2_error
 #endif /* PARANOID */
 
-- 
2.25.1

[PATCH 5.7 135/179] asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()

[Greg Kroah-Hartman]

From: Will Deacon <will@kernel.org>

[ Upstream commit bd024e82e4cd95c7f1a475a55f99871936c2b2db ]

Although mmiowb() is concerned only with serialising MMIO writes occuring
in contexts where a spinlock is held, the call to mmiowb_set_pending()
from the MMIO write accessors can occur in preemptible contexts, such
as during driver probe() functions where ordering between CPUs is not
usually a concern, assuming that the task migration path provides the
necessary ordering guarantees.

Unfortunately, the default implementation of mmiowb_set_pending() is not
preempt-safe, as it makes use of a a per-cpu variable to track its
internal state. This has been reported to generate the following splat
on riscv:

 | BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
 | caller is regmap_mmio_write32le+0x1c/0x46
 | CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.8.0-rc3-hfu+ #1
 | Call Trace:
 |  walk_stackframe+0x0/0x7a
 |  dump_stack+0x6e/0x88
 |  regmap_mmio_write32le+0x18/0x46
 |  check_preemption_disabled+0xa4/0xaa
 |  regmap_mmio_write32le+0x18/0x46
 |  regmap_mmio_write+0x26/0x44
 |  regmap_write+0x28/0x48
 |  sifive_gpio_probe+0xc0/0x1da

Although it's possible to fix the driver in this case, other splats have
been seen from other drivers, including the infamous 8250 UART, and so
it's better to address this problem in the mmiowb core itself.

Fix mmiowb_set_pending() by using the raw_cpu_ptr() to get at the mmiowb
state and then only updating the 'mmiowb_pending' field if we are not
preemptible (i.e. we have a non-zero nesting count).

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Palmer Dabbelt <palmer@dabbelt.com>
Reported-by: Emil Renner Berthing <kernel@esmil.dk>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Link: https://lore.kernel.org/r/20200716112816.7356-1-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/asm-generic/mmiowb.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/mmiowb.h b/include/asm-generic/mmiowb.h
index 9439ff037b2d1..5698fca3bf560 100644
--- a/include/asm-generic/mmiowb.h
+++ b/include/asm-generic/mmiowb.h
@@ -27,7 +27,7 @@
 #include <asm/smp.h>
 
 DECLARE_PER_CPU(struct mmiowb_state, __mmiowb_state);
-#define __mmiowb_state()	this_cpu_ptr(&__mmiowb_state)
+#define __mmiowb_state()	raw_cpu_ptr(&__mmiowb_state)
 #else
 #define __mmiowb_state()	arch_mmiowb_state()
 #endif	/* arch_mmiowb_state */
@@ -35,7 +35,9 @@ DECLARE_PER_CPU(struct mmiowb_state, __mmiowb_state);
 static inline void mmiowb_set_pending(void)
 {
 	struct mmiowb_state *ms = __mmiowb_state();
-	ms->mmiowb_pending = ms->nesting_count;
+
+	if (likely(ms->nesting_count))
+		ms->mmiowb_pending = ms->nesting_count;
 }
 
 static inline void mmiowb_spin_lock(void)
-- 
2.25.1

[PATCH 5.7 136/179] drivers/perf: Prevent forced unbinding of PMU drivers

[Greg Kroah-Hartman]

From: Qi Liu <liuqi115@huawei.com>

[ Upstream commit f32ed8eb0e3f0d0ef4ddb854554d60ca5863a9f9 ]

Forcefully unbinding PMU drivers during perf sampling will lead to
a kernel panic, because the perf upper-layer framework call a NULL
pointer in this situation.

To solve this issue, "suppress_bind_attrs" should be set to true, so
that bind/unbind can be disabled via sysfs and prevent unbinding PMU
drivers during perf sampling.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594975763-32966-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/perf/arm-cci.c                        | 1 +
 drivers/perf/arm-ccn.c                        | 1 +
 drivers/perf/arm_dsu_pmu.c                    | 1 +
 drivers/perf/arm_smmuv3_pmu.c                 | 1 +
 drivers/perf/arm_spe_pmu.c                    | 1 +
 drivers/perf/fsl_imx8_ddr_perf.c              | 1 +
 drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 1 +
 drivers/perf/hisilicon/hisi_uncore_hha_pmu.c  | 1 +
 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c  | 1 +
 drivers/perf/qcom_l2_pmu.c                    | 1 +
 drivers/perf/qcom_l3_pmu.c                    | 1 +
 drivers/perf/thunderx2_pmu.c                  | 1 +
 drivers/perf/xgene_pmu.c                      | 1 +
 13 files changed, 13 insertions(+)

diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c
index 1b8e337a29cac..87c4be9dd4125 100644
--- a/drivers/perf/arm-cci.c
+++ b/drivers/perf/arm-cci.c
@@ -1718,6 +1718,7 @@ static struct platform_driver cci_pmu_driver = {
 	.driver = {
 		   .name = DRIVER_NAME,
 		   .of_match_table = arm_cci_pmu_matches,
+		   .suppress_bind_attrs = true,
 		  },
 	.probe = cci_pmu_probe,
 	.remove = cci_pmu_remove,
diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index d50edef91f59b..7b7d23f257139 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -1545,6 +1545,7 @@ static struct platform_driver arm_ccn_driver = {
 	.driver = {
 		.name = "arm-ccn",
 		.of_match_table = arm_ccn_match,
+		.suppress_bind_attrs = true,
 	},
 	.probe = arm_ccn_probe,
 	.remove = arm_ccn_remove,
diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
index 70968c8c09d7f..4594e2ed13d59 100644
--- a/drivers/perf/arm_dsu_pmu.c
+++ b/drivers/perf/arm_dsu_pmu.c
@@ -759,6 +759,7 @@ static struct platform_driver dsu_pmu_driver = {
 	.driver = {
 		.name	= DRVNAME,
 		.of_match_table = of_match_ptr(dsu_pmu_of_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = dsu_pmu_device_probe,
 	.remove = dsu_pmu_device_remove,
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index 90caba56dfbc1..4cdb35d166acc 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -860,6 +860,7 @@ static void smmu_pmu_shutdown(struct platform_device *pdev)
 static struct platform_driver smmu_pmu_driver = {
 	.driver = {
 		.name = "arm-smmu-v3-pmcg",
+		.suppress_bind_attrs = true,
 	},
 	.probe = smmu_pmu_probe,
 	.remove = smmu_pmu_remove,
diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index b72c048525990..c5418fd3122c2 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -1228,6 +1228,7 @@ static struct platform_driver arm_spe_pmu_driver = {
 	.driver	= {
 		.name		= DRVNAME,
 		.of_match_table	= of_match_ptr(arm_spe_pmu_of_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe	= arm_spe_pmu_device_probe,
 	.remove	= arm_spe_pmu_device_remove,
diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 2aed2d96f8ae7..397540a4b799c 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -707,6 +707,7 @@ static struct platform_driver imx_ddr_pmu_driver = {
 	.driver         = {
 		.name   = "imx-ddr-pmu",
 		.of_match_table = imx_ddr_pmu_dt_ids,
+		.suppress_bind_attrs = true,
 	},
 	.probe          = ddr_perf_probe,
 	.remove         = ddr_perf_remove,
diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
index c65da06abb041..3418527366408 100644
--- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
@@ -417,6 +417,7 @@ static struct platform_driver hisi_ddrc_pmu_driver = {
 	.driver = {
 		.name = "hisi_ddrc_pmu",
 		.acpi_match_table = ACPI_PTR(hisi_ddrc_pmu_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = hisi_ddrc_pmu_probe,
 	.remove = hisi_ddrc_pmu_remove,
diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
index ee6e6a1c390a0..375c4737a088a 100644
--- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
@@ -429,6 +429,7 @@ static struct platform_driver hisi_hha_pmu_driver = {
 	.driver = {
 		.name = "hisi_hha_pmu",
 		.acpi_match_table = ACPI_PTR(hisi_hha_pmu_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = hisi_hha_pmu_probe,
 	.remove = hisi_hha_pmu_remove,
diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index c8b98d3a8432a..44e8a660c5f52 100644
--- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -419,6 +419,7 @@ static struct platform_driver hisi_l3c_pmu_driver = {
 	.driver = {
 		.name = "hisi_l3c_pmu",
 		.acpi_match_table = ACPI_PTR(hisi_l3c_pmu_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = hisi_l3c_pmu_probe,
 	.remove = hisi_l3c_pmu_remove,
diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index 21d6991dbe0ba..4da37f650f983 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -1028,6 +1028,7 @@ static struct platform_driver l2_cache_pmu_driver = {
 	.driver = {
 		.name = "qcom-l2cache-pmu",
 		.acpi_match_table = ACPI_PTR(l2_cache_pmu_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = l2_cache_pmu_probe,
 	.remove = l2_cache_pmu_remove,
diff --git a/drivers/perf/qcom_l3_pmu.c b/drivers/perf/qcom_l3_pmu.c
index 656e830798d9e..9ddb577c542b5 100644
--- a/drivers/perf/qcom_l3_pmu.c
+++ b/drivers/perf/qcom_l3_pmu.c
@@ -814,6 +814,7 @@ static struct platform_driver qcom_l3_cache_pmu_driver = {
 	.driver = {
 		.name = "qcom-l3cache-pmu",
 		.acpi_match_table = ACPI_PTR(qcom_l3_cache_pmu_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = qcom_l3_cache_pmu_probe,
 };
diff --git a/drivers/perf/thunderx2_pmu.c b/drivers/perf/thunderx2_pmu.c
index 51b31d6ff2c4c..aac9823b0c6bb 100644
--- a/drivers/perf/thunderx2_pmu.c
+++ b/drivers/perf/thunderx2_pmu.c
@@ -1017,6 +1017,7 @@ static struct platform_driver tx2_uncore_driver = {
 	.driver = {
 		.name		= "tx2-uncore-pmu",
 		.acpi_match_table = ACPI_PTR(tx2_uncore_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 	.probe = tx2_uncore_probe,
 	.remove = tx2_uncore_remove,
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index 46ee6807d533a..edac28cd25ddc 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1975,6 +1975,7 @@ static struct platform_driver xgene_pmu_driver = {
 		.name		= "xgene-pmu",
 		.of_match_table = xgene_pmu_of_match,
 		.acpi_match_table = ACPI_PTR(xgene_pmu_acpi_match),
+		.suppress_bind_attrs = true,
 	},
 };
 
-- 
2.25.1

[PATCH 5.7 137/179] RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw

[Greg Kroah-Hartman]

From: Palmer Dabbelt <palmerdabbelt@google.com>

[ Upstream commit 38b7c2a3ffb1fce8358ddc6006cfe5c038ff9963 ]

While digging through the recent mmiowb preemption issue it came up that
we aren't actually preventing IO from crossing a scheduling boundary.
While it's a bit ugly to overload smp_mb__after_spinlock() with this
behavior, it's what PowerPC is doing so there's some precedent.

Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/riscv/include/asm/barrier.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/include/asm/barrier.h b/arch/riscv/include/asm/barrier.h
index 3f1737f301ccb..d0e24aaa2aa06 100644
--- a/arch/riscv/include/asm/barrier.h
+++ b/arch/riscv/include/asm/barrier.h
@@ -58,8 +58,16 @@ do {									\
  * The AQ/RL pair provides a RCpc critical section, but there's not really any
  * way we can take advantage of that here because the ordering is only enforced
  * on that one lock.  Thus, we're just doing a full fence.
+ *
+ * Since we allow writeX to be called from preemptive regions we need at least
+ * an "o" in the predecessor set to ensure device writes are visible before the
+ * task is marked as available for scheduling on a new hart.  While I don't see
+ * any concrete reason we need a full IO fence, it seems safer to just upgrade
+ * this in order to avoid any IO crossing a scheduling boundary.  In both
+ * instances the scheduler pairs this with an mb(), so nothing is necessary on
+ * the new hart.
  */
-#define smp_mb__after_spinlock()	RISCV_FENCE(rw,rw)
+#define smp_mb__after_spinlock()	RISCV_FENCE(iorw,iorw)
 
 #include <asm-generic/barrier.h>
 
-- 
2.25.1

[PATCH 5.7 138/179] x86/boot: Dont add the EFI stub to targets

[Greg Kroah-Hartman]

From: Arvind Sankar <nivedita@alum.mit.edu>

[ Upstream commit da05b143a308bd6a7a444401f9732678ae63fc70 ]

vmlinux-objs-y is added to targets, which currently means that the EFI
stub gets added to the targets as well. It shouldn't be added since it
is built elsewhere.

This confuses Makefile.build which interprets the EFI stub as a target
	$(obj)/$(objtree)/drivers/firmware/efi/libstub/lib.a
and will create drivers/firmware/efi/libstub/ underneath
arch/x86/boot/compressed, to hold this supposed target, if building
out-of-tree. [0]

Fix this by pulling the stub out of vmlinux-objs-y into efi-obj-y.

[0] See scripts/Makefile.build near the end:
    # Create directories for object files if they do not exist

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lkml.kernel.org/r/20200715032631.1562882-1-nivedita@alum.mit.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/boot/compressed/Makefile |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -88,8 +88,8 @@ endif
 
 vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o
 
-vmlinux-objs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
 vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o
+efi-obj-$(CONFIG_EFI_STUB) = $(objtree)/drivers/firmware/efi/libstub/lib.a
 
 # The compressed kernel is built with -fPIC/-fPIE so that a boot loader
 # can place it anywhere in memory and it will still run. However, since
@@ -113,7 +113,7 @@ endef
 quiet_cmd_check-and-link-vmlinux = LD      $@
       cmd_check-and-link-vmlinux = $(cmd_check_data_rel); $(cmd_ld)
 
-$(obj)/vmlinux: $(vmlinux-objs-y) FORCE
+$(obj)/vmlinux: $(vmlinux-objs-y) $(efi-obj-y) FORCE
 	$(call if_changed,check-and-link-vmlinux)
 
 OBJCOPYFLAGS_vmlinux.bin :=  -R .comment -S

[PATCH 5.7 139/179] binder: Dont use mmput() from shrinker function.

[Greg Kroah-Hartman]

From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>

commit f867c771f98891841c217fa8459244ed0dd28921 upstream.

syzbot is reporting that mmput() from shrinker function has a risk of
deadlock [1], for delayed_uprobe_add() from update_ref_ctr() calls
kzalloc(GFP_KERNEL) with delayed_uprobe_lock held, and
uprobe_clear_state() from __mmput() also holds delayed_uprobe_lock.

Commit a1b2289cef92ef0e ("android: binder: drop lru lock in isolate
callback") replaced mmput() with mmput_async() in order to avoid sleeping
with spinlock held. But this patch replaces mmput() with mmput_async() in
order not to start __mmput() from shrinker context.

[1] https://syzkaller.appspot.com/bug?id=bc9e7303f537c41b2b0cc2dfcea3fc42964c2d45

Reported-by: syzbot <syzbot+1068f09c44d151250c33@syzkaller.appspotmail.com>
Reported-by: syzbot <syzbot+e5344baa319c9a96edec@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Michal Hocko <mhocko@suse.com>
Acked-by: Todd Kjos <tkjos@google.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/4ba9adb2-43f5-2de0-22de-f6075c1fab50@i-love.sakura.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/android/binder_alloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -947,7 +947,7 @@ enum lru_status binder_alloc_free_page(s
 		trace_binder_unmap_user_end(alloc, index);
 	}
 	up_read(&mm->mmap_sem);
-	mmput(mm);
+	mmput_async(mm);
 
 	trace_binder_unmap_kernel_start(alloc, index);
 

[PATCH 5.7 140/179] usb: xhci-mtk: fix the failure of bandwidth allocation

[Greg Kroah-Hartman]

From: Chunfeng Yun <chunfeng.yun@mediatek.com>

commit 5ce1a24dd98c00a57a8fa13660648abf7e08e3ef upstream.

The wMaxPacketSize field of endpoint descriptor may be zero
as default value in alternate interface, and they are not
actually selected when start stream, so skip them when try to
allocate bandwidth.

Cc: stable <stable@vger.kernel.org>
Fixes: 0cbd4b34cda9 ("xhci: mediatek: support MTK xHCI host controller")
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1594360672-2076-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/host/xhci-mtk-sch.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -557,6 +557,10 @@ static bool need_bw_sch(struct usb_host_
 	if (is_fs_or_ls(speed) && !has_tt)
 		return false;
 
+	/* skip endpoint with zero maxpkt */
+	if (usb_endpoint_maxp(&ep->desc) == 0)
+		return false;
+
 	return true;
 }
 

[PATCH 5.7 141/179] usb: tegra: Fix allocation for the FPCI context

[Greg Kroah-Hartman]

From: Jon Hunter <jonathanh@nvidia.com>

commit 0b987032f8b58ef51cc8a042f46cc0cf1f277172 upstream.

Commit 5c4e8d3781bc ("usb: host: xhci-tegra: Add support for XUSB
context save/restore") is using the IPFS 'num_offsets' value when
allocating memory for FPCI context instead of the FPCI 'num_offsets'.

After commit cad064f1bd52 ("devres: handle zero size in devm_kmalloc()")
was added system suspend started failing on Tegra186. The kernel log
showed that the Tegra XHCI driver was crashing on entry to suspend when
attempting the save the USB context. On Tegra186, the IPFS context has a
zero length but the FPCI content has a non-zero length, and because of
the bug in the Tegra XHCI driver we are incorrectly allocating a zero
length array for the FPCI context. The crash seen on entering suspend
when we attempt to save the FPCI context and following commit
cad064f1bd52 ("devres: handle zero size in devm_kmalloc()") this now
causes a NULL pointer deference when we access the memory. Fix this by
correcting the amount of memory we are allocating for FPCI contexts.

Cc: stable@vger.kernel.org

Fixes: 5c4e8d3781bc ("usb: host: xhci-tegra: Add support for XUSB context save/restore")

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200715113842.30680-1-jonathanh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/host/xhci-tegra.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -856,7 +856,7 @@ static int tegra_xusb_init_context(struc
 	if (!tegra->context.ipfs)
 		return -ENOMEM;
 
-	tegra->context.fpci = devm_kcalloc(tegra->dev, soc->ipfs.num_offsets,
+	tegra->context.fpci = devm_kcalloc(tegra->dev, soc->fpci.num_offsets,
 					   sizeof(u32), GFP_KERNEL);
 	if (!tegra->context.fpci)
 		return -ENOMEM;

[PATCH 5.7 142/179] usb: xhci: Fix ASM2142/ASM3142 DMA addressing

[Greg Kroah-Hartman]

From: Forest Crossman <cyrozap@gmail.com>

commit dbb0897e805f2ab1b8bc358f6c3d878a376b8897 upstream.

The ASM2142/ASM3142 (same PCI IDs) does not support full 64-bit DMA
addresses, which can cause silent memory corruption or IOMMU errors on
platforms that use the upper bits. Add the XHCI_NO_64BIT_SUPPORT quirk
to fix this issue.

Signed-off-by: Forest Crossman <cyrozap@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200717112734.328432-1-cyrozap@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/host/xhci-pci.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -255,6 +255,9 @@ static void xhci_pci_quirks(struct devic
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 			pdev->device == 0x1142)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+			pdev->device == 0x2142)
+		xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
 
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)

[PATCH 5.7 143/179] Revert "cifs: Fix the target file was deleted when rename failed."

[Greg Kroah-Hartman]

From: Steve French <stfrench@microsoft.com>

commit 0e6705182d4e1b77248a93470d6d7b3013d59b30 upstream.

This reverts commit 9ffad9263b467efd8f8dc7ae1941a0a655a2bab2.

Upon additional testing with older servers, it was found that
the original commit introduced a regression when using the old SMB1
dialect and rsyncing over an existing file.

The patch will need to be respun to address this, likely including
a larger refactoring of the SMB1 and SMB3 rename code paths to make
it less confusing and also to address some additional rename error
cases that SMB3 may be able to workaround.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reported-by: Patrick Fernie <patrick.fernie@gmail.com>
CC: Stable <stable@vger.kernel.org>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Acked-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/cifs/inode.c |   10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1855,7 +1855,6 @@ cifs_rename2(struct inode *source_dir, s
 	FILE_UNIX_BASIC_INFO *info_buf_target;
 	unsigned int xid;
 	int rc, tmprc;
-	bool new_target = d_really_is_negative(target_dentry);
 
 	if (flags & ~RENAME_NOREPLACE)
 		return -EINVAL;
@@ -1932,13 +1931,8 @@ cifs_rename2(struct inode *source_dir, s
 	 */
 
 unlink_target:
-	/*
-	 * If the target dentry was created during the rename, try
-	 * unlinking it if it's not negative
-	 */
-	if (new_target &&
-	    d_really_is_positive(target_dentry) &&
-	    (rc == -EACCES || rc == -EEXIST)) {
+	/* Try unlinking the target dentry if it's not negative */
+	if (d_really_is_positive(target_dentry) && (rc == -EACCES || rc == -EEXIST)) {
 		if (d_is_dir(target_dentry))
 			tmprc = cifs_rmdir(target_dir, target_dentry);
 		else

[PATCH 5.7 144/179] iwlwifi: mvm: dont call iwl_mvm_free_inactive_queue() under RCU

[Greg Kroah-Hartman]

From: Johannes Berg <johannes.berg@intel.com>

commit fbb1461ad1d6eacca9beb69a2f3ce1b5398d399b upstream.

iwl_mvm_free_inactive_queue() will sleep in synchronize_net() under
some circumstances, so don't call it under RCU. There doesn't appear
to be a need for RCU protection around this particular call.

Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20200403112332.0f49448c133d.I17fd308bc4a9491859c9b112f4eb5d2c3fc18d7d@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -1184,17 +1184,15 @@ static int iwl_mvm_inactivity_check(stru
 	for_each_set_bit(i, &changetid_queues, IWL_MAX_HW_QUEUES)
 		iwl_mvm_change_queue_tid(mvm, i);
 
+	rcu_read_unlock();
+
 	if (free_queue >= 0 && alloc_for_sta != IWL_MVM_INVALID_STA) {
 		ret = iwl_mvm_free_inactive_queue(mvm, free_queue, queue_owner,
 						  alloc_for_sta);
-		if (ret) {
-			rcu_read_unlock();
+		if (ret)
 			return ret;
-		}
 	}
 
-	rcu_read_unlock();
-
 	return free_queue;
 }
 

[PATCH 5.7 145/179] tty: xilinx_uartps: Really fix id assignment

[Greg Kroah-Hartman]

From: Helmut Grohne <helmut.grohne@intenta.de>

commit 22a82fa7d6c3e16d56a036b1fa697a39b954adf0 upstream.

The problems started with the revert (18cc7ac8a28e28). The
cdns_uart_console.index is statically assigned -1. When the port is
registered, Linux assigns consecutive numbers to it. It turned out that
when using ttyPS1 as console, the index is not updated as we are reusing
the same cdns_uart_console instance for multiple ports. When registering
ttyPS0, it gets updated from -1 to 0, but when registering ttyPS1, it
already is 0 and not updated.

That led to 2ae11c46d5fdc4. It assigns the index prior to registering
the uart_driver once. Unfortunately, that ended up breaking the
situation where the probe order does not match the id order. When using
the same device tree for both uboot and linux, it is important that the
serial0 alias points to the console. So some boards reverse those
aliases. This was reported by Jan Kiszka. The proposed fix was reverting
the index assignment and going back to the previous iteration.

However such a reversed assignement (serial0 -> uart1, serial1 -> uart0)
was already partially broken by the revert (18cc7ac8a28e28). While the
ttyPS device works, the kmsg connection is already broken and kernel
messages go missing. Reverting the id assignment does not fix this.

>From the xilinx_uartps driver pov (after reverting the refactoring
commits), there can be only one console. This manifests in static
variables console_pprt and cdns_uart_console. These variables are not
properly linked and can go out of sync. The cdns_uart_console.index is
important for uart_add_one_port. We call that function for each port -
one of which hopefully is the console. If it isn't, the CON_ENABLED flag
is not set and console_port is cleared. The next cdns_uart_probe call
then tries to register the next port using that same cdns_uart_console.

It is important that console_port and cdns_uart_console (and its index
in particular) stay in sync. The index assignment implemented by
Shubhrajyoti Datta is correct in principle. It just may have to happen a
second time if the first cdns_uart_probe call didn't encounter the
console device. And we shouldn't change the index once the console uart
is registered.

Reported-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Link: https://lore.kernel.org/linux-serial/f4092727-d8f5-5f91-2c9f-76643aace993@siemens.com/
Fixes: 18cc7ac8a28e28 ("Revert "serial: uartps: Register own uart console and driver structures"")
Fixes: 2ae11c46d5fdc4 ("tty: xilinx_uartps: Fix missing id assignment to the console")
Fixes: 76ed2e10579671 ("Revert "tty: xilinx_uartps: Fix missing id assignment to the console"")
Signed-off-by: Helmut Grohne <helmut.grohne@intenta.de>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200713073227.GA3805@laureti-dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/xilinx_uartps.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1574,8 +1574,10 @@ static int cdns_uart_probe(struct platfo
 	 * If register_console() don't assign value, then console_port pointer
 	 * is cleanup.
 	 */
-	if (!console_port)
+	if (!console_port) {
+		cdns_uart_console.index = id;
 		console_port = port;
+	}
 #endif
 
 	rc = uart_add_one_port(&cdns_uart_uart_driver, port);
@@ -1588,8 +1590,10 @@ static int cdns_uart_probe(struct platfo
 #ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
 	/* This is not port which is used for console that's why clean it up */
 	if (console_port == port &&
-	    !(cdns_uart_uart_driver.cons->flags & CON_ENABLED))
+	    !(cdns_uart_uart_driver.cons->flags & CON_ENABLED)) {
 		console_port = NULL;
+		cdns_uart_console.index = -1;
+	}
 #endif
 
 	cdns_uart_data->cts_override = of_property_read_bool(pdev->dev.of_node,

[PATCH 5.7 146/179] staging: wlan-ng: properly check endpoint types

[Greg Kroah-Hartman]

From: Rustam Kovhaev <rkovhaev@gmail.com>

commit faaff9765664009c1c7c65551d32e9ed3b1dda8f upstream.

As syzkaller detected, wlan-ng driver does not do sanity check of
endpoints in prism2sta_probe_usb(), add check for xfer direction and type

Reported-and-tested-by: syzbot+c2a1fa67c02faa0de723@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=c2a1fa67c02faa0de723
Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200722161052.999754-1-rkovhaev@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/wlan-ng/prism2usb.c |   16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

--- a/drivers/staging/wlan-ng/prism2usb.c
+++ b/drivers/staging/wlan-ng/prism2usb.c
@@ -61,11 +61,25 @@ static int prism2sta_probe_usb(struct us
 			       const struct usb_device_id *id)
 {
 	struct usb_device *dev;
-
+	const struct usb_endpoint_descriptor *epd;
+	const struct usb_host_interface *iface_desc = interface->cur_altsetting;
 	struct wlandevice *wlandev = NULL;
 	struct hfa384x *hw = NULL;
 	int result = 0;
 
+	if (iface_desc->desc.bNumEndpoints != 2) {
+		result = -ENODEV;
+		goto failed;
+	}
+
+	result = -EINVAL;
+	epd = &iface_desc->endpoint[1].desc;
+	if (!usb_endpoint_is_bulk_in(epd))
+		goto failed;
+	epd = &iface_desc->endpoint[2].desc;
+	if (!usb_endpoint_is_bulk_out(epd))
+		goto failed;
+
 	dev = interface_to_usbdev(interface);
 	wlandev = create_wlan();
 	if (!wlandev) {

[PATCH 5.7 147/179] staging: comedi: addi_apci_1032: check INSN_CONFIG_DIGITAL_TRIG shift

[Greg Kroah-Hartman]

From: Ian Abbott <abbotti@mev.co.uk>

commit 0bd0db42a030b75c20028c7ba6e327b9cb554116 upstream.

The `INSN_CONFIG` comedi instruction with sub-instruction code
`INSN_CONFIG_DIGITAL_TRIG` includes a base channel in `data[3]`. This is
used as a right shift amount for other bitmask values without being
checked.  Shift amounts greater than or equal to 32 will result in
undefined behavior.  Add code to deal with this.

Fixes: 33cdce6293dcc ("staging: comedi: addi_apci_1032: conform to new INSN_CONFIG_DIGITAL_TRIG")
Cc: <stable@vger.kernel.org> #3.8+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20200717145257.112660-3-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/comedi/drivers/addi_apci_1032.c |   20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

--- a/drivers/staging/comedi/drivers/addi_apci_1032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1032.c
@@ -106,14 +106,22 @@ static int apci1032_cos_insn_config(stru
 				    unsigned int *data)
 {
 	struct apci1032_private *devpriv = dev->private;
-	unsigned int shift, oldmask;
+	unsigned int shift, oldmask, himask, lomask;
 
 	switch (data[0]) {
 	case INSN_CONFIG_DIGITAL_TRIG:
 		if (data[1] != 0)
 			return -EINVAL;
 		shift = data[3];
-		oldmask = (1U << shift) - 1;
+		if (shift < 32) {
+			oldmask = (1U << shift) - 1;
+			himask = data[4] << shift;
+			lomask = data[5] << shift;
+		} else {
+			oldmask = 0xffffffffu;
+			himask = 0;
+			lomask = 0;
+		}
 		switch (data[2]) {
 		case COMEDI_DIGITAL_TRIG_DISABLE:
 			devpriv->ctrl = 0;
@@ -136,8 +144,8 @@ static int apci1032_cos_insn_config(stru
 				devpriv->mode2 &= oldmask;
 			}
 			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
+			devpriv->mode1 |= himask;
+			devpriv->mode2 |= lomask;
 			break;
 		case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
 			if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
@@ -154,8 +162,8 @@ static int apci1032_cos_insn_config(stru
 				devpriv->mode2 &= oldmask;
 			}
 			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
+			devpriv->mode1 |= himask;
+			devpriv->mode2 |= lomask;
 			break;
 		default:
 			return -EINVAL;

[PATCH 5.7 148/179] staging: comedi: ni_6527: fix INSN_CONFIG_DIGITAL_TRIG support

[Greg Kroah-Hartman]

From: Ian Abbott <abbotti@mev.co.uk>

commit f07804ec77d77f8a9dcf570a24154e17747bc82f upstream.

`ni6527_intr_insn_config()` processes `INSN_CONFIG` comedi instructions
for the "interrupt" subdevice.  When `data[0]` is
`INSN_CONFIG_DIGITAL_TRIG` it is configuring the digital trigger.  When
`data[2]` is `COMEDI_DIGITAL_TRIG_ENABLE_EDGES` it is configuring rising
and falling edge detection for the digital trigger, using a base channel
number (or shift amount) in `data[3]`, a rising edge bitmask in
`data[4]` and falling edge bitmask in `data[5]`.

If the base channel number (shift amount) is greater than or equal to
the number of channels (24) of the digital input subdevice, there are no
changes to the rising and falling edges, so the mask of channels to be
changed can be set to 0, otherwise the mask of channels to be changed,
and the rising and falling edge bitmasks are shifted by the base channel
number before calling `ni6527_set_edge_detection()` to change the
appropriate registers.  Unfortunately, the code is comparing the base
channel (shift amount) to the interrupt subdevice's number of channels
(1) instead of the digital input subdevice's number of channels (24).
Fix it by comparing to 32 because all shift amounts for an `unsigned
int` must be less than that and everything from bit 24 upwards is
ignored by `ni6527_set_edge_detection()` anyway.

Fixes: 110f9e687c1a8 ("staging: comedi: ni_6527: support INSN_CONFIG_DIGITAL_TRIG")
Cc: <stable@vger.kernel.org> # 3.17+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20200717145257.112660-2-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/comedi/drivers/ni_6527.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -332,7 +332,7 @@ static int ni6527_intr_insn_config(struc
 		case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
 			/* check shift amount */
 			shift = data[3];
-			if (shift >= s->n_chan) {
+			if (shift >= 32) {
 				mask = 0;
 				rising = 0;
 				falling = 0;

[PATCH 5.7 149/179] staging: comedi: addi_apci_1500: check INSN_CONFIG_DIGITAL_TRIG shift

[Greg Kroah-Hartman]

From: Ian Abbott <abbotti@mev.co.uk>

commit fc846e9db67c7e808d77bf9e2ef3d49e3820ce5d upstream.

The `INSN_CONFIG` comedi instruction with sub-instruction code
`INSN_CONFIG_DIGITAL_TRIG` includes a base channel in `data[3]`. This is
used as a right shift amount for other bitmask values without being
checked.  Shift amounts greater than or equal to 32 will result in
undefined behavior.  Add code to deal with this, adjusting the checks
for invalid channels so that enabled channel bits that would have been
lost by shifting are also checked for validity.  Only channels 0 to 15
are valid.

Fixes: a8c66b684efaf ("staging: comedi: addi_apci_1500: rewrite the subdevice support functions")
Cc: <stable@vger.kernel.org> #4.0+: ef75e14a6c93: staging: comedi: verify array index is correct before using it
Cc: <stable@vger.kernel.org> #4.0+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20200717145257.112660-5-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/comedi/drivers/addi_apci_1500.c |   24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

--- a/drivers/staging/comedi/drivers/addi_apci_1500.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1500.c
@@ -452,13 +452,14 @@ static int apci1500_di_cfg_trig(struct c
 	struct apci1500_private *devpriv = dev->private;
 	unsigned int trig = data[1];
 	unsigned int shift = data[3];
-	unsigned int hi_mask = data[4] << shift;
-	unsigned int lo_mask = data[5] << shift;
-	unsigned int chan_mask = hi_mask | lo_mask;
-	unsigned int old_mask = (1 << shift) - 1;
+	unsigned int hi_mask;
+	unsigned int lo_mask;
+	unsigned int chan_mask;
+	unsigned int old_mask;
 	unsigned int pm;
 	unsigned int pt;
 	unsigned int pp;
+	unsigned int invalid_chan;
 
 	if (trig > 1) {
 		dev_dbg(dev->class_dev,
@@ -466,7 +467,20 @@ static int apci1500_di_cfg_trig(struct c
 		return -EINVAL;
 	}
 
-	if (chan_mask > 0xffff) {
+	if (shift <= 16) {
+		hi_mask = data[4] << shift;
+		lo_mask = data[5] << shift;
+		old_mask = (1U << shift) - 1;
+		invalid_chan = (data[4] | data[5]) >> (16 - shift);
+	} else {
+		hi_mask = 0;
+		lo_mask = 0;
+		old_mask = 0xffff;
+		invalid_chan = data[4] | data[5];
+	}
+	chan_mask = hi_mask | lo_mask;
+
+	if (invalid_chan) {
 		dev_dbg(dev->class_dev, "invalid digital trigger channel\n");
 		return -EINVAL;
 	}

[PATCH 5.7 150/179] staging: comedi: addi_apci_1564: check INSN_CONFIG_DIGITAL_TRIG shift

[Greg Kroah-Hartman]

From: Ian Abbott <abbotti@mev.co.uk>

commit 926234f1b8434c4409aa4c53637aa3362ca07cea upstream.

The `INSN_CONFIG` comedi instruction with sub-instruction code
`INSN_CONFIG_DIGITAL_TRIG` includes a base channel in `data[3]`. This is
used as a right shift amount for other bitmask values without being
checked.  Shift amounts greater than or equal to 32 will result in
undefined behavior.  Add code to deal with this.

Fixes: 1e15687ea472 ("staging: comedi: addi_apci_1564: add Change-of-State interrupt subdevice and required functions")
Cc: <stable@vger.kernel.org> #3.17+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20200717145257.112660-4-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/comedi/drivers/addi_apci_1564.c |   20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

--- a/drivers/staging/comedi/drivers/addi_apci_1564.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1564.c
@@ -331,14 +331,22 @@ static int apci1564_cos_insn_config(stru
 				    unsigned int *data)
 {
 	struct apci1564_private *devpriv = dev->private;
-	unsigned int shift, oldmask;
+	unsigned int shift, oldmask, himask, lomask;
 
 	switch (data[0]) {
 	case INSN_CONFIG_DIGITAL_TRIG:
 		if (data[1] != 0)
 			return -EINVAL;
 		shift = data[3];
-		oldmask = (1U << shift) - 1;
+		if (shift < 32) {
+			oldmask = (1U << shift) - 1;
+			himask = data[4] << shift;
+			lomask = data[5] << shift;
+		} else {
+			oldmask = 0xffffffffu;
+			himask = 0;
+			lomask = 0;
+		}
 		switch (data[2]) {
 		case COMEDI_DIGITAL_TRIG_DISABLE:
 			devpriv->ctrl = 0;
@@ -362,8 +370,8 @@ static int apci1564_cos_insn_config(stru
 				devpriv->mode2 &= oldmask;
 			}
 			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
+			devpriv->mode1 |= himask;
+			devpriv->mode2 |= lomask;
 			break;
 		case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
 			if (devpriv->ctrl != (APCI1564_DI_IRQ_ENA |
@@ -380,8 +388,8 @@ static int apci1564_cos_insn_config(stru
 				devpriv->mode2 &= oldmask;
 			}
 			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
+			devpriv->mode1 |= himask;
+			devpriv->mode2 |= lomask;
 			break;
 		default:
 			return -EINVAL;

[PATCH 5.7 151/179] serial: tegra: fix CREAD handling for PIO

[Greg Kroah-Hartman]

From: Johan Hovold <johan@kernel.org>

commit b374c562ee7ab3f3a1daf959c01868bae761571c upstream.

Commit 33ae787b74fc ("serial: tegra: add support to ignore read") added
support for dropping input in case CREAD isn't set, but for PIO the
ignore_status_mask wasn't checked until after the character had been
put in the receive buffer.

Note that the NULL tty-port test is bogus and will be removed by a
follow-on patch.

Fixes: 33ae787b74fc ("serial: tegra: add support to ignore read")
Cc: stable <stable@vger.kernel.org>     # 5.4
Cc: Shardar Shariff Md <smohammed@nvidia.com>
Cc: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200710135947.2737-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/serial-tegra.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -653,11 +653,14 @@ static void tegra_uart_handle_rx_pio(str
 		ch = (unsigned char) tegra_uart_read(tup, UART_RX);
 		tup->uport.icount.rx++;
 
-		if (!uart_handle_sysrq_char(&tup->uport, ch) && tty)
-			tty_insert_flip_char(tty, ch, flag);
+		if (uart_handle_sysrq_char(&tup->uport, ch))
+			continue;
 
 		if (tup->uport.ignore_status_mask & UART_LSR_DR)
 			continue;
+
+		if (tty)
+			tty_insert_flip_char(tty, ch, flag);
 	} while (1);
 }
 

[PATCH 5.7 152/179] serial: 8250: fix null-ptr-deref in serial8250_start_tx()

[Greg Kroah-Hartman]

From: Yang Yingliang <yangyingliang@huawei.com>

commit f4c23a140d80ef5e6d3d1f8f57007649014b60fa upstream.

I got null-ptr-deref in serial8250_start_tx():

[   78.114630] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[   78.123778] Mem abort info:
[   78.126560]   ESR = 0x86000007
[   78.129603]   EC = 0x21: IABT (current EL), IL = 32 bits
[   78.134891]   SET = 0, FnV = 0
[   78.137933]   EA = 0, S1PTW = 0
[   78.141064] user pgtable: 64k pages, 48-bit VAs, pgdp=00000027d41a8600
[   78.147562] [0000000000000000] pgd=00000027893f0003, p4d=00000027893f0003, pud=00000027893f0003, pmd=00000027c9a20003, pte=0000000000000000
[   78.160029] Internal error: Oops: 86000007 [#1] SMP
[   78.164886] Modules linked in: sunrpc vfat fat aes_ce_blk crypto_simd cryptd aes_ce_cipher crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce ses enclosure sg sbsa_gwdt ipmi_ssif spi_dw_mmio sch_fq_codel vhost_net tun vhost vhost_iotlb tap ip_tables ext4 mbcache jbd2 ahci hisi_sas_v3_hw libahci hisi_sas_main libsas hns3 scsi_transport_sas hclge libata megaraid_sas ipmi_si hnae3 ipmi_devintf ipmi_msghandler br_netfilter bridge stp llc nvme nvme_core xt_sctp sctp libcrc32c dm_mod nbd
[   78.207383] CPU: 11 PID: 23258 Comm: null-ptr Not tainted 5.8.0-rc6+ #48
[   78.214056] Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2 CS V3.B210.01 03/12/2020
[   78.222888] pstate: 80400089 (Nzcv daIf +PAN -UAO BTYPE=--)
[   78.228435] pc : 0x0
[   78.230618] lr : serial8250_start_tx+0x160/0x260
[   78.235215] sp : ffff800062eefb80
[   78.238517] x29: ffff800062eefb80 x28: 0000000000000fff
[   78.243807] x27: ffff800062eefd80 x26: ffff202fd83b3000
[   78.249098] x25: ffff800062eefd80 x24: ffff202fd83b3000
[   78.254388] x23: ffff002fc5e50be8 x22: 0000000000000002
[   78.259679] x21: 0000000000000001 x20: 0000000000000000
[   78.264969] x19: ffffa688827eecc8 x18: 0000000000000000
[   78.270259] x17: 0000000000000000 x16: 0000000000000000
[   78.275550] x15: ffffa68881bc67a8 x14: 00000000000002e6
[   78.280841] x13: ffffa68881bc67a8 x12: 000000000000c539
[   78.286131] x11: d37a6f4de9bd37a7 x10: ffffa68881cccff0
[   78.291421] x9 : ffffa68881bc6000 x8 : ffffa688819daa88
[   78.296711] x7 : ffffa688822a0f20 x6 : ffffa688819e0000
[   78.302002] x5 : ffff800062eef9d0 x4 : ffffa68881e707a8
[   78.307292] x3 : 0000000000000000 x2 : 0000000000000002
[   78.312582] x1 : 0000000000000001 x0 : ffffa688827eecc8
[   78.317873] Call trace:
[   78.320312]  0x0
[   78.322147]  __uart_start.isra.9+0x64/0x78
[   78.326229]  uart_start+0xb8/0x1c8
[   78.329620]  uart_flush_chars+0x24/0x30
[   78.333442]  n_tty_receive_buf_common+0x7b0/0xc30
[   78.338128]  n_tty_receive_buf+0x44/0x2c8
[   78.342122]  tty_ioctl+0x348/0x11f8
[   78.345599]  ksys_ioctl+0xd8/0xf8
[   78.348903]  __arm64_sys_ioctl+0x2c/0xc8
[   78.352812]  el0_svc_common.constprop.2+0x88/0x1b0
[   78.357583]  do_el0_svc+0x44/0xd0
[   78.360887]  el0_sync_handler+0x14c/0x1d0
[   78.364880]  el0_sync+0x140/0x180
[   78.368185] Code: bad PC value

SERIAL_PORT_DFNS is not defined on each arch, if it's not defined,
serial8250_set_defaults() won't be called in serial8250_isa_init_ports(),
so the p->serial_in pointer won't be initialized, and it leads a null-ptr-deref.
Fix this problem by calling serial8250_set_defaults() after init uart port.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200721143852.4058352-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/8250/8250_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -524,6 +524,7 @@ static void __init serial8250_isa_init_p
 		 */
 		up->mcr_mask = ~ALPHA_KLUDGE_MCR;
 		up->mcr_force = ALPHA_KLUDGE_MCR;
+		serial8250_set_defaults(up);
 	}
 
 	/* chain base port ops to support Remote Supervisor Adapter */
@@ -547,7 +548,6 @@ static void __init serial8250_isa_init_p
 		port->membase  = old_serial_port[i].iomem_base;
 		port->iotype   = old_serial_port[i].io_type;
 		port->regshift = old_serial_port[i].iomem_reg_shift;
-		serial8250_set_defaults(up);
 
 		port->irqflags |= irqflag;
 		if (serial8250_isa_config != NULL)

[PATCH 5.7 153/179] serial: 8250_mtk: Fix high-speed baud rates clamping

[Greg Kroah-Hartman]

From: Serge Semin <Sergey.Semin@baikalelectronics.ru>

commit 551e553f0d4ab623e2a6f424ab5834f9c7b5229c upstream.

Commit 7b668c064ec3 ("serial: 8250: Fix max baud limit in generic 8250
port") fixed limits of a baud rate setting for a generic 8250 port.
In other words since that commit the baud rate has been permitted to be
within [uartclk / 16 / UART_DIV_MAX; uartclk / 16], which is absolutely
normal for a standard 8250 UART port. But there are custom 8250 ports,
which provide extended baud rate limits. In particular the Mediatek 8250
port can work with baud rates up to "uartclk" speed.

Normally that and any other peculiarity is supposed to be handled in a
custom set_termios() callback implemented in the vendor-specific
8250-port glue-driver. Currently that is how it's done for the most of
the vendor-specific 8250 ports, but for some reason for Mediatek a
solution has been spread out to both the glue-driver and to the generic
8250-port code. Due to that a bug has been introduced, which permitted the
extended baud rate limit for all even for standard 8250-ports. The bug
has been fixed by the commit 7b668c064ec3 ("serial: 8250: Fix max baud
limit in generic 8250 port") by narrowing the baud rates limit back down to
the normal bounds. Unfortunately by doing so we also broke the
Mediatek-specific extended bauds feature.

A fix of the problem described above is twofold. First since we can't get
back the extended baud rate limits feature to the generic set_termios()
function and that method supports only a standard baud rates range, the
requested baud rate must be locally stored before calling it and then
restored back to the new termios structure after the generic set_termios()
finished its magic business. By doing so we still use the
serial8250_do_set_termios() method to set the LCR/MCR/FCR/etc. registers,
while the extended baud rate setting procedure will be performed later in
the custom Mediatek-specific set_termios() callback. Second since a true
baud rate is now fully calculated in the custom set_termios() method we
need to locally update the port timeout by calling the
uart_update_timeout() function. After the fixes described above are
implemented in the 8250_mtk.c driver, the Mediatek 8250-port should
get back to normally working with extended baud rates.

Link: https://lore.kernel.org/linux-serial/20200701211337.3027448-1-danielwinkler@google.com

Fixes: 7b668c064ec3 ("serial: 8250: Fix max baud limit in generic 8250 port")
Reported-by: Daniel Winkler <danielwinkler@google.com>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: stable <stable@vger.kernel.org>
Tested-by: Claire Chang <tientzu@chromium.org>
Link: https://lore.kernel.org/r/20200714124113.20918-1-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/8250/8250_mtk.c |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -306,8 +306,21 @@ mtk8250_set_termios(struct uart_port *po
 	}
 #endif
 
+	/*
+	 * Store the requested baud rate before calling the generic 8250
+	 * set_termios method. Standard 8250 port expects bauds to be
+	 * no higher than (uartclk / 16) so the baud will be clamped if it
+	 * gets out of that bound. Mediatek 8250 port supports speed
+	 * higher than that, therefore we'll get original baud rate back
+	 * after calling the generic set_termios method and recalculate
+	 * the speed later in this method.
+	 */
+	baud = tty_termios_baud_rate(termios);
+
 	serial8250_do_set_termios(port, termios, old);
 
+	tty_termios_encode_baud_rate(termios, baud, baud);
+
 	/*
 	 * Mediatek UARTs use an extra highspeed register (MTK_UART_HIGHS)
 	 *
@@ -339,6 +352,11 @@ mtk8250_set_termios(struct uart_port *po
 	 */
 	spin_lock_irqsave(&port->lock, flags);
 
+	/*
+	 * Update the per-port timeout.
+	 */
+	uart_update_timeout(port, termios->c_cflag, baud);
+
 	/* set DLAB we have cval saved in up->lcr from the call to the core */
 	serial_port_out(port, UART_LCR, up->lcr | UART_LCR_DLAB);
 	serial_dl_write(up, quot);

[PATCH 5.7 154/179] interconnect: msm8916: Fix buswidth of pcnoc_s nodes

[Greg Kroah-Hartman]

From: Georgi Djakov <georgi.djakov@linaro.org>

commit 92d232d176041db5b033dd7b7f7f2cf343f82237 upstream.

The buswidth of the pcnoc_s_* nodes is actually not 8, but
4 bytes. Let's fix it.

Reported-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Mike Tipton <mdtipton@codeaurora.org>
Fixes: 30c8fa3ec61a ("interconnect: qcom: Add MSM8916 interconnect provider driver")
Link: https://lore.kernel.org/r/20200709130004.12462-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200723083735.5616-3-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/interconnect/qcom/msm8916.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/drivers/interconnect/qcom/msm8916.c
+++ b/drivers/interconnect/qcom/msm8916.c
@@ -197,13 +197,13 @@ DEFINE_QNODE(pcnoc_int_0, MSM8916_PNOC_I
 DEFINE_QNODE(pcnoc_int_1, MSM8916_PNOC_INT_1, 8, -1, -1, MSM8916_PNOC_SNOC_MAS);
 DEFINE_QNODE(pcnoc_m_0, MSM8916_PNOC_MAS_0, 8, -1, -1, MSM8916_PNOC_INT_0);
 DEFINE_QNODE(pcnoc_m_1, MSM8916_PNOC_MAS_1, 8, -1, -1, MSM8916_PNOC_SNOC_MAS);
-DEFINE_QNODE(pcnoc_s_0, MSM8916_PNOC_SLV_0, 8, -1, -1, MSM8916_SLAVE_CLK_CTL, MSM8916_SLAVE_TLMM, MSM8916_SLAVE_TCSR, MSM8916_SLAVE_SECURITY, MSM8916_SLAVE_MSS);
-DEFINE_QNODE(pcnoc_s_1, MSM8916_PNOC_SLV_1, 8, -1, -1, MSM8916_SLAVE_IMEM_CFG, MSM8916_SLAVE_CRYPTO_0_CFG, MSM8916_SLAVE_MSG_RAM, MSM8916_SLAVE_PDM, MSM8916_SLAVE_PRNG);
-DEFINE_QNODE(pcnoc_s_2, MSM8916_PNOC_SLV_2, 8, -1, -1, MSM8916_SLAVE_SPDM, MSM8916_SLAVE_BOOT_ROM, MSM8916_SLAVE_BIMC_CFG, MSM8916_SLAVE_PNOC_CFG, MSM8916_SLAVE_PMIC_ARB);
-DEFINE_QNODE(pcnoc_s_3, MSM8916_PNOC_SLV_3, 8, -1, -1, MSM8916_SLAVE_MPM, MSM8916_SLAVE_SNOC_CFG, MSM8916_SLAVE_RBCPR_CFG, MSM8916_SLAVE_QDSS_CFG, MSM8916_SLAVE_DEHR_CFG);
-DEFINE_QNODE(pcnoc_s_4, MSM8916_PNOC_SLV_4, 8, -1, -1, MSM8916_SLAVE_VENUS_CFG, MSM8916_SLAVE_CAMERA_CFG, MSM8916_SLAVE_DISPLAY_CFG);
-DEFINE_QNODE(pcnoc_s_8, MSM8916_PNOC_SLV_8, 8, -1, -1, MSM8916_SLAVE_USB_HS, MSM8916_SLAVE_SDCC_1, MSM8916_SLAVE_BLSP_1);
-DEFINE_QNODE(pcnoc_s_9, MSM8916_PNOC_SLV_9, 8, -1, -1, MSM8916_SLAVE_SDCC_2, MSM8916_SLAVE_LPASS, MSM8916_SLAVE_GRAPHICS_3D_CFG);
+DEFINE_QNODE(pcnoc_s_0, MSM8916_PNOC_SLV_0, 4, -1, -1, MSM8916_SLAVE_CLK_CTL, MSM8916_SLAVE_TLMM, MSM8916_SLAVE_TCSR, MSM8916_SLAVE_SECURITY, MSM8916_SLAVE_MSS);
+DEFINE_QNODE(pcnoc_s_1, MSM8916_PNOC_SLV_1, 4, -1, -1, MSM8916_SLAVE_IMEM_CFG, MSM8916_SLAVE_CRYPTO_0_CFG, MSM8916_SLAVE_MSG_RAM, MSM8916_SLAVE_PDM, MSM8916_SLAVE_PRNG);
+DEFINE_QNODE(pcnoc_s_2, MSM8916_PNOC_SLV_2, 4, -1, -1, MSM8916_SLAVE_SPDM, MSM8916_SLAVE_BOOT_ROM, MSM8916_SLAVE_BIMC_CFG, MSM8916_SLAVE_PNOC_CFG, MSM8916_SLAVE_PMIC_ARB);
+DEFINE_QNODE(pcnoc_s_3, MSM8916_PNOC_SLV_3, 4, -1, -1, MSM8916_SLAVE_MPM, MSM8916_SLAVE_SNOC_CFG, MSM8916_SLAVE_RBCPR_CFG, MSM8916_SLAVE_QDSS_CFG, MSM8916_SLAVE_DEHR_CFG);
+DEFINE_QNODE(pcnoc_s_4, MSM8916_PNOC_SLV_4, 4, -1, -1, MSM8916_SLAVE_VENUS_CFG, MSM8916_SLAVE_CAMERA_CFG, MSM8916_SLAVE_DISPLAY_CFG);
+DEFINE_QNODE(pcnoc_s_8, MSM8916_PNOC_SLV_8, 4, -1, -1, MSM8916_SLAVE_USB_HS, MSM8916_SLAVE_SDCC_1, MSM8916_SLAVE_BLSP_1);
+DEFINE_QNODE(pcnoc_s_9, MSM8916_PNOC_SLV_9, 4, -1, -1, MSM8916_SLAVE_SDCC_2, MSM8916_SLAVE_LPASS, MSM8916_SLAVE_GRAPHICS_3D_CFG);
 DEFINE_QNODE(pcnoc_snoc_mas, MSM8916_PNOC_SNOC_MAS, 8, 29, -1, MSM8916_PNOC_SNOC_SLV);
 DEFINE_QNODE(pcnoc_snoc_slv, MSM8916_PNOC_SNOC_SLV, 8, -1, 45, MSM8916_SNOC_INT_0, MSM8916_SNOC_INT_BIMC, MSM8916_SNOC_INT_1);
 DEFINE_QNODE(qdss_int, MSM8916_SNOC_QDSS_INT, 8, -1, -1, MSM8916_SNOC_INT_0, MSM8916_SNOC_INT_BIMC);

[PATCH 5.7 155/179] /dev/mem: Add missing memory barriers for devmem_inode

[Greg Kroah-Hartman]

From: Eric Biggers <ebiggers@google.com>

commit b34e7e298d7a5ed76b3aa327c240c29f1ef6dd22 upstream.

WRITE_ONCE() isn't the correct way to publish a pointer to a data
structure, since it doesn't include a write memory barrier.  Therefore
other tasks may see that the pointer has been set but not see that the
pointed-to memory has finished being initialized yet.  Instead a
primitive with "release" semantics is needed.

Use smp_store_release() for this.

The use of READ_ONCE() on the read side is still potentially correct if
there's no control dependency, i.e. if all memory being "published" is
transitively reachable via the pointer itself.  But this pairing is
somewhat confusing and error-prone.  So just upgrade the read side to
smp_load_acquire() so that it clearly pairs with smp_store_release().

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims the region")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/20200716060553.24618-1-ebiggers@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/char/mem.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -814,7 +814,8 @@ static struct inode *devmem_inode;
 #ifdef CONFIG_IO_STRICT_DEVMEM
 void revoke_devmem(struct resource *res)
 {
-	struct inode *inode = READ_ONCE(devmem_inode);
+	/* pairs with smp_store_release() in devmem_init_inode() */
+	struct inode *inode = smp_load_acquire(&devmem_inode);
 
 	/*
 	 * Check that the initialization has completed. Losing the race
@@ -1028,8 +1029,11 @@ static int devmem_init_inode(void)
 		return rc;
 	}
 
-	/* publish /dev/mem initialized */
-	WRITE_ONCE(devmem_inode, inode);
+	/*
+	 * Publish /dev/mem initialized.
+	 * Pairs with smp_load_acquire() in revoke_devmem().
+	 */
+	smp_store_release(&devmem_inode, inode);
 
 	return 0;
 }

[PATCH 5.7 156/179] fbdev: Detect integer underflow at "struct fbcon_ops"->clear_margins.

[Greg Kroah-Hartman]

From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

commit 033724d6864245a11f8e04c066002e6ad22b3fd0 upstream.

syzbot is reporting general protection fault in bitfill_aligned() [1]
caused by integer underflow in bit_clear_margins(). The cause of this
problem is when and how do_vc_resize() updates vc->vc_{cols,rows}.

If vc_do_resize() fails (e.g. kzalloc() fails) when var.xres or var.yres
is going to shrink, vc->vc_{cols,rows} will not be updated. This allows
bit_clear_margins() to see info->var.xres < (vc->vc_cols * cw) or
info->var.yres < (vc->vc_rows * ch). Unexpectedly large rw or bh will
try to overrun the __iomem region and causes general protection fault.

Also, vc_resize(vc, 0, 0) does not set vc->vc_{cols,rows} = 0 due to

  new_cols = (cols ? cols : vc->vc_cols);
  new_rows = (lines ? lines : vc->vc_rows);

exception. Since cols and lines are calculated as

  cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres);
  rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
  cols /= vc->vc_font.width;
  rows /= vc->vc_font.height;
  vc_resize(vc, cols, rows);

in fbcon_modechanged(), var.xres < vc->vc_font.width makes cols = 0
and var.yres < vc->vc_font.height makes rows = 0. This means that

  const int fd = open("/dev/fb0", O_ACCMODE);
  struct fb_var_screeninfo var = { };
  ioctl(fd, FBIOGET_VSCREENINFO, &var);
  var.xres = var.yres = 1;
  ioctl(fd, FBIOPUT_VSCREENINFO, &var);

easily reproduces integer underflow bug explained above.

Of course, callers of vc_resize() are not handling vc_do_resize() failure
is bad. But we can't avoid vc_resize(vc, 0, 0) which returns 0. Therefore,
as a band-aid workaround, this patch checks integer underflow in
"struct fbcon_ops"->clear_margins call, assuming that
vc->vc_cols * vc->vc_font.width and vc->vc_rows * vc->vc_font.heigh do not
cause integer overflow.

[1] https://syzkaller.appspot.com/bug?id=a565882df74fa76f10d3a6fec4be31098dbb37c6

Reported-and-tested-by: syzbot <syzbot+e5fd3e65515b48c02a30@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200715015102.3814-1-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/video/fbdev/core/bitblit.c   |    4 ++--
 drivers/video/fbdev/core/fbcon_ccw.c |    4 ++--
 drivers/video/fbdev/core/fbcon_cw.c  |    4 ++--
 drivers/video/fbdev/core/fbcon_ud.c  |    4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

--- a/drivers/video/fbdev/core/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -216,7 +216,7 @@ static void bit_clear_margins(struct vc_
 	region.color = color;
 	region.rop = ROP_COPY;
 
-	if (rw && !bottom_only) {
+	if ((int) rw > 0 && !bottom_only) {
 		region.dx = info->var.xoffset + rs;
 		region.dy = 0;
 		region.width = rw;
@@ -224,7 +224,7 @@ static void bit_clear_margins(struct vc_
 		info->fbops->fb_fillrect(info, &region);
 	}
 
-	if (bh) {
+	if ((int) bh > 0) {
 		region.dx = info->var.xoffset;
 		region.dy = info->var.yoffset + bs;
 		region.width = rs;
--- a/drivers/video/fbdev/core/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -201,7 +201,7 @@ static void ccw_clear_margins(struct vc_
 	region.color = color;
 	region.rop = ROP_COPY;
 
-	if (rw && !bottom_only) {
+	if ((int) rw > 0 && !bottom_only) {
 		region.dx = 0;
 		region.dy = info->var.yoffset;
 		region.height = rw;
@@ -209,7 +209,7 @@ static void ccw_clear_margins(struct vc_
 		info->fbops->fb_fillrect(info, &region);
 	}
 
-	if (bh) {
+	if ((int) bh > 0) {
 		region.dx = info->var.xoffset + bs;
 		region.dy = 0;
                 region.height = info->var.yres_virtual;
--- a/drivers/video/fbdev/core/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -184,7 +184,7 @@ static void cw_clear_margins(struct vc_d
 	region.color = color;
 	region.rop = ROP_COPY;
 
-	if (rw && !bottom_only) {
+	if ((int) rw > 0 && !bottom_only) {
 		region.dx = 0;
 		region.dy = info->var.yoffset + rs;
 		region.height = rw;
@@ -192,7 +192,7 @@ static void cw_clear_margins(struct vc_d
 		info->fbops->fb_fillrect(info, &region);
 	}
 
-	if (bh) {
+	if ((int) bh > 0) {
 		region.dx = info->var.xoffset;
 		region.dy = info->var.yoffset;
                 region.height = info->var.yres;
--- a/drivers/video/fbdev/core/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -231,7 +231,7 @@ static void ud_clear_margins(struct vc_d
 	region.color = color;
 	region.rop = ROP_COPY;
 
-	if (rw && !bottom_only) {
+	if ((int) rw > 0 && !bottom_only) {
 		region.dy = 0;
 		region.dx = info->var.xoffset;
 		region.width  = rw;
@@ -239,7 +239,7 @@ static void ud_clear_margins(struct vc_d
 		info->fbops->fb_fillrect(info, &region);
 	}
 
-	if (bh) {
+	if ((int) bh > 0) {
 		region.dy = info->var.yoffset;
 		region.dx = info->var.xoffset;
                 region.height  = bh;

[PATCH 5.7 157/179] vt: Reject zero-sized screen buffer size.

[Greg Kroah-Hartman]

From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

commit ce684552a266cb1c7cc2f7e623f38567adec6653 upstream.

syzbot is reporting general protection fault in do_con_write() [1] caused
by vc->vc_screenbuf == ZERO_SIZE_PTR caused by vc->vc_screenbuf_size == 0
caused by vc->vc_cols == vc->vc_rows == vc->vc_size_row == 0 caused by
fb_set_var() from ioctl(FBIOPUT_VSCREENINFO) on /dev/fb0 , for
gotoxy(vc, 0, 0) from reset_terminal() from vc_init() from vc_allocate()
 from con_install() from tty_init_dev() from tty_open() on such console
causes vc->vc_pos == 0x10000000e due to
((unsigned long) ZERO_SIZE_PTR) + -1U * 0 + (-1U << 1).

I don't think that a console with 0 column or 0 row makes sense. And it
seems that vc_do_resize() does not intend to allow resizing a console to
0 column or 0 row due to

  new_cols = (cols ? cols : vc->vc_cols);
  new_rows = (lines ? lines : vc->vc_rows);

exception.

Theoretically, cols and rows can be any range as long as
0 < cols * rows * 2 <= KMALLOC_MAX_SIZE is satisfied (e.g.
cols == 1048576 && rows == 2 is possible) because of

  vc->vc_size_row = vc->vc_cols << 1;
  vc->vc_screenbuf_size = vc->vc_rows * vc->vc_size_row;

in visual_init() and kzalloc(vc->vc_screenbuf_size) in vc_allocate().

Since we can detect cols == 0 or rows == 0 via screenbuf_size = 0 in
visual_init(), we can reject kzalloc(0). Then, vc_allocate() will return
an error, and con_write() will not be called on a console with 0 column
or 0 row.

We need to make sure that integer overflow in visual_init() won't happen.
Since vc_do_resize() restricts cols <= 32767 and rows <= 32767, applying
1 <= cols <= 32767 and 1 <= rows <= 32767 restrictions to vc_allocate()
will be practically fine.

This patch does not touch con_init(), for returning -EINVAL there
does not help when we are not returning -ENOMEM.

[1] https://syzkaller.appspot.com/bug?extid=017265e8553724e514e8

Reported-and-tested-by: syzbot <syzbot+017265e8553724e514e8@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200712111013.11881-1-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/vt/vt.c |   29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1092,10 +1092,19 @@ static const struct tty_port_operations
 	.destruct = vc_port_destruct,
 };
 
+/*
+ * Change # of rows and columns (0 means unchanged/the size of fg_console)
+ * [this is to be used together with some user program
+ * like resize that changes the hardware videomode]
+ */
+#define VC_MAXCOL (32767)
+#define VC_MAXROW (32767)
+
 int vc_allocate(unsigned int currcons)	/* return 0 on success */
 {
 	struct vt_notifier_param param;
 	struct vc_data *vc;
+	int err;
 
 	WARN_CONSOLE_UNLOCKED();
 
@@ -1125,6 +1134,11 @@ int vc_allocate(unsigned int currcons)	/
 	if (!*vc->vc_uni_pagedir_loc)
 		con_set_default_unimap(vc);
 
+	err = -EINVAL;
+	if (vc->vc_cols > VC_MAXCOL || vc->vc_rows > VC_MAXROW ||
+	    vc->vc_screenbuf_size > KMALLOC_MAX_SIZE || !vc->vc_screenbuf_size)
+		goto err_free;
+	err = -ENOMEM;
 	vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_KERNEL);
 	if (!vc->vc_screenbuf)
 		goto err_free;
@@ -1143,7 +1157,7 @@ err_free:
 	visual_deinit(vc);
 	kfree(vc);
 	vc_cons[currcons].d = NULL;
-	return -ENOMEM;
+	return err;
 }
 
 static inline int resize_screen(struct vc_data *vc, int width, int height,
@@ -1158,14 +1172,6 @@ static inline int resize_screen(struct v
 	return err;
 }
 
-/*
- * Change # of rows and columns (0 means unchanged/the size of fg_console)
- * [this is to be used together with some user program
- * like resize that changes the hardware videomode]
- */
-#define VC_RESIZE_MAXCOL (32767)
-#define VC_RESIZE_MAXROW (32767)
-
 /**
  *	vc_do_resize	-	resizing method for the tty
  *	@tty: tty being resized
@@ -1201,7 +1207,7 @@ static int vc_do_resize(struct tty_struc
 	user = vc->vc_resize_user;
 	vc->vc_resize_user = 0;
 
-	if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW)
+	if (cols > VC_MAXCOL || lines > VC_MAXROW)
 		return -EINVAL;
 
 	new_cols = (cols ? cols : vc->vc_cols);
@@ -1212,7 +1218,7 @@ static int vc_do_resize(struct tty_struc
 	if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
 		return 0;
 
-	if (new_screen_size > KMALLOC_MAX_SIZE)
+	if (new_screen_size > KMALLOC_MAX_SIZE || !new_screen_size)
 		return -EINVAL;
 	newscreen = kzalloc(new_screen_size, GFP_USER);
 	if (!newscreen)
@@ -3393,6 +3399,7 @@ static int __init con_init(void)
 		INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
 		tty_port_init(&vc->port);
 		visual_init(vc, currcons, 1);
+		/* Assuming vc->vc_{cols,rows,screenbuf_size} are sane here. */
 		vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT);
 		vc_init(vc, vc->vc_rows, vc->vc_cols,
 			currcons || !vc->vc_sw->con_save_screen);

[PATCH 5.7 158/179] Makefile: Fix GCC_TOOLCHAIN_DIR prefix for Clang cross compilation

[Greg Kroah-Hartman]

From: Fangrui Song <maskray@google.com>

commit ca9b31f6bb9c6aa9b4e5f0792f39a97bbffb8c51 upstream.

When CROSS_COMPILE is set (e.g. aarch64-linux-gnu-), if
$(CROSS_COMPILE)elfedit is found at /usr/bin/aarch64-linux-gnu-elfedit,
GCC_TOOLCHAIN_DIR will be set to /usr/bin/.  --prefix= will be set to
/usr/bin/ and Clang as of 11 will search for both
$(prefix)aarch64-linux-gnu-$needle and $(prefix)$needle.

GCC searchs for $(prefix)aarch64-linux-gnu/$version/$needle,
$(prefix)aarch64-linux-gnu/$needle and $(prefix)$needle. In practice,
$(prefix)aarch64-linux-gnu/$needle rarely contains executables.

To better model how GCC's -B/--prefix takes in effect in practice, newer
Clang (since
https://github.com/llvm/llvm-project/commit/3452a0d8c17f7166f479706b293caf6ac76ffd90)
only searches for $(prefix)$needle. Currently it will find /usr/bin/as
instead of /usr/bin/aarch64-linux-gnu-as.

Set --prefix= to $(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
(/usr/bin/aarch64-linux-gnu-) so that newer Clang can find the
appropriate cross compiling GNU as (when -no-integrated-as is in
effect).

Cc: stable@vger.kernel.org
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Fangrui Song <maskray@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1099
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Makefile
+++ b/Makefile
@@ -549,7 +549,7 @@ ifneq ($(shell $(CC) --version 2>&1 | he
 ifneq ($(CROSS_COMPILE),)
 CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
-CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)
+CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
 GCC_TOOLCHAIN	:= $(realpath $(GCC_TOOLCHAIN_DIR)/..)
 endif
 ifneq ($(GCC_TOOLCHAIN),)

[PATCH 5.7 159/179] mm/mmap.c: close race between munmap() and expand_upwards()/downwards()

[Greg Kroah-Hartman]

From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

commit 246c320a8cfe0b11d81a4af38fa9985ef0cc9a4c upstream.

VMA with VM_GROWSDOWN or VM_GROWSUP flag set can change their size under
mmap_read_lock().  It can lead to race with __do_munmap():

	Thread A			Thread B
__do_munmap()
  detach_vmas_to_be_unmapped()
  mmap_write_downgrade()
				expand_downwards()
				  vma->vm_start = address;
				  // The VMA now overlaps with
				  // VMAs detached by the Thread A
				// page fault populates expanded part
				// of the VMA
  unmap_region()
    // Zaps pagetables partly
    // populated by Thread B

Similar race exists for expand_upwards().

The fix is to avoid downgrading mmap_lock in __do_munmap() if detached
VMAs are next to VM_GROWSDOWN or VM_GROWSUP VMA.

[akpm@linux-foundation.org: s/mmap_sem/mmap_lock/ in comment]

Fixes: dd2283f2605e ("mm: mmap: zap pages with read mmap_sem in munmap")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>	[4.20+]
Link: http://lkml.kernel.org/r/20200709105309.42495-1-kirill.shutemov@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/mmap.c |   16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2620,7 +2620,7 @@ static void unmap_region(struct mm_struc
  * Create a list of vma's touched by the unmap, removing them from the mm's
  * vma list as we go..
  */
-static void
+static bool
 detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct vm_area_struct *prev, unsigned long end)
 {
@@ -2645,6 +2645,17 @@ detach_vmas_to_be_unmapped(struct mm_str
 
 	/* Kill the cache */
 	vmacache_invalidate(mm);
+
+	/*
+	 * Do not downgrade mmap_lock if we are next to VM_GROWSDOWN or
+	 * VM_GROWSUP VMA. Such VMAs can change their size under
+	 * down_read(mmap_lock) and collide with the VMA we are about to unmap.
+	 */
+	if (vma && (vma->vm_flags & VM_GROWSDOWN))
+		return false;
+	if (prev && (prev->vm_flags & VM_GROWSUP))
+		return false;
+	return true;
 }
 
 /*
@@ -2825,7 +2836,8 @@ int __do_munmap(struct mm_struct *mm, un
 	}
 
 	/* Detach vmas from rbtree */
-	detach_vmas_to_be_unmapped(mm, vma, prev, end);
+	if (!detach_vmas_to_be_unmapped(mm, vma, prev, end))
+		downgrade = false;
 
 	if (downgrade)
 		downgrade_write(&mm->mmap_sem);

[PATCH 5.7 160/179] vfs/xattr: mm/shmem: kernfs: release simple xattr entry in a right way

[Greg Kroah-Hartman]

From: Chengguang Xu <cgxu519@mykernel.net>

commit 3bef735ad7b7d987069181e7b58588043cbd1509 upstream.

After commit fdc85222d58e ("kernfs: kvmalloc xattr value instead of
kmalloc"), simple xattr entry is allocated with kvmalloc() instead of
kmalloc(), so we should release it with kvfree() instead of kfree().

Fixes: fdc85222d58e ("kernfs: kvmalloc xattr value instead of kmalloc")
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Daniel Xu <dxu@dxuuu.xyz>
Cc: Chris Down <chris@chrisdown.name>
Cc: Andreas Dilger <adilger@dilger.ca>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>	[5.7]
Link: http://lkml.kernel.org/r/20200704051608.15043-1-cgxu519@mykernel.net
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 include/linux/xattr.h |    3 ++-
 mm/shmem.c            |    2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/spinlock.h>
+#include <linux/mm.h>
 #include <uapi/linux/xattr.h>
 
 struct inode;
@@ -94,7 +95,7 @@ static inline void simple_xattrs_free(st
 
 	list_for_each_entry_safe(xattr, node, &xattrs->head, list) {
 		kfree(xattr->name);
-		kfree(xattr);
+		kvfree(xattr);
 	}
 }
 
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3205,7 +3205,7 @@ static int shmem_initxattrs(struct inode
 		new_xattr->name = kmalloc(XATTR_SECURITY_PREFIX_LEN + len,
 					  GFP_KERNEL);
 		if (!new_xattr->name) {
-			kfree(new_xattr);
+			kvfree(new_xattr);
 			return -ENOMEM;
 		}
 

[PATCH 5.7 161/179] mm/memcg: fix refcount error while moving and swapping

[Greg Kroah-Hartman]

From: Hugh Dickins <hughd@google.com>

commit 8d22a9351035ef2ff12ef163a1091b8b8cf1e49c upstream.

It was hard to keep a test running, moving tasks between memcgs with
move_charge_at_immigrate, while swapping: mem_cgroup_id_get_many()'s
refcount is discovered to be 0 (supposedly impossible), so it is then
forced to REFCOUNT_SATURATED, and after thousands of warnings in quick
succession, the test is at last put out of misery by being OOM killed.

This is because of the way moved_swap accounting was saved up until the
task move gets completed in __mem_cgroup_clear_mc(), deferred from when
mem_cgroup_move_swap_account() actually exchanged old and new ids.
Concurrent activity can free up swap quicker than the task is scanned,
bringing id refcount down 0 (which should only be possible when
offlining).

Just skip that optimization: do that part of the accounting immediately.

Fixes: 615d66c37c75 ("mm: memcontrol: fix memcg id ref counter on swap charge move")
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/alpine.LSU.2.11.2007071431050.4726@eggly.anvils
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/memcontrol.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5658,7 +5658,6 @@ static void __mem_cgroup_clear_mc(void)
 		if (!mem_cgroup_is_root(mc.to))
 			page_counter_uncharge(&mc.to->memory, mc.moved_swap);
 
-		mem_cgroup_id_get_many(mc.to, mc.moved_swap);
 		css_put_many(&mc.to->css, mc.moved_swap);
 
 		mc.moved_swap = 0;
@@ -5849,7 +5848,8 @@ put:			/* get_mctgt_type() gets the page
 			ent = target.ent;
 			if (!mem_cgroup_move_swap_account(ent, mc.from, mc.to)) {
 				mc.precharge--;
-				/* we fixup refcnts and charges later. */
+				mem_cgroup_id_get_many(mc.to, 1);
+				/* we fixup other refcnts and charges later. */
 				mc.moved_swap++;
 			}
 			break;

[PATCH 5.7 162/179] mm: memcg/slab: fix memory leak at non-root kmem_cache destroy

[Greg Kroah-Hartman]

From: Muchun Song <songmuchun@bytedance.com>

commit d38a2b7a9c939e6d7329ab92b96559ccebf7b135 upstream.

If the kmem_cache refcount is greater than one, we should not mark the
root kmem_cache as dying.  If we mark the root kmem_cache dying
incorrectly, the non-root kmem_cache can never be destroyed.  It
resulted in memory leak when memcg was destroyed.  We can use the
following steps to reproduce.

  1) Use kmem_cache_create() to create a new kmem_cache named A.
  2) Coincidentally, the kmem_cache A is an alias for kmem_cache B,
     so the refcount of B is just increased.
  3) Use kmem_cache_destroy() to destroy the kmem_cache A, just
     decrease the B's refcount but mark the B as dying.
  4) Create a new memory cgroup and alloc memory from the kmem_cache
     B. It leads to create a non-root kmem_cache for allocating memory.
  5) When destroy the memory cgroup created in the step 4), the
     non-root kmem_cache can never be destroyed.

If we repeat steps 4) and 5), this will cause a lot of memory leak.  So
only when refcount reach zero, we mark the root kmem_cache as dying.

Fixes: 92ee383f6daa ("mm: fix race between kmem_cache destroy, create and deactivate")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200716165103.83462-1-songmuchun@bytedance.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/slab_common.c |   35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -326,6 +326,14 @@ int slab_unmergeable(struct kmem_cache *
 	if (s->refcount < 0)
 		return 1;
 
+#ifdef CONFIG_MEMCG_KMEM
+	/*
+	 * Skip the dying kmem_cache.
+	 */
+	if (s->memcg_params.dying)
+		return 1;
+#endif
+
 	return 0;
 }
 
@@ -886,12 +894,15 @@ static int shutdown_memcg_caches(struct
 	return 0;
 }
 
-static void flush_memcg_workqueue(struct kmem_cache *s)
+static void memcg_set_kmem_cache_dying(struct kmem_cache *s)
 {
 	spin_lock_irq(&memcg_kmem_wq_lock);
 	s->memcg_params.dying = true;
 	spin_unlock_irq(&memcg_kmem_wq_lock);
+}
 
+static void flush_memcg_workqueue(struct kmem_cache *s)
+{
 	/*
 	 * SLAB and SLUB deactivate the kmem_caches through call_rcu. Make
 	 * sure all registered rcu callbacks have been invoked.
@@ -923,10 +934,6 @@ static inline int shutdown_memcg_caches(
 {
 	return 0;
 }
-
-static inline void flush_memcg_workqueue(struct kmem_cache *s)
-{
-}
 #endif /* CONFIG_MEMCG_KMEM */
 
 void slab_kmem_cache_release(struct kmem_cache *s)
@@ -944,8 +951,6 @@ void kmem_cache_destroy(struct kmem_cach
 	if (unlikely(!s))
 		return;
 
-	flush_memcg_workqueue(s);
-
 	get_online_cpus();
 	get_online_mems();
 
@@ -955,6 +960,22 @@ void kmem_cache_destroy(struct kmem_cach
 	if (s->refcount)
 		goto out_unlock;
 
+#ifdef CONFIG_MEMCG_KMEM
+	memcg_set_kmem_cache_dying(s);
+
+	mutex_unlock(&slab_mutex);
+
+	put_online_mems();
+	put_online_cpus();
+
+	flush_memcg_workqueue(s);
+
+	get_online_cpus();
+	get_online_mems();
+
+	mutex_lock(&slab_mutex);
+#endif
+
 	err = shutdown_memcg_caches(s);
 	if (!err)
 		err = shutdown_cache(s);

[PATCH 5.7 163/179] mm/hugetlb: avoid hardcoding while checking if cma is enabled

[Greg Kroah-Hartman]

From: Barry Song <song.bao.hua@hisilicon.com>

commit dbda8feadfa46b3d8dd7a2304f84ccbc036effe9 upstream.

hugetlb_cma[0] can be NULL due to various reasons, for example, node0
has no memory.  so NULL hugetlb_cma[0] doesn't necessarily mean cma is
not enabled.  gigantic pages might have been reserved on other nodes.
This patch fixes possible double reservation and CMA leak.

[akpm@linux-foundation.org: fix CONFIG_CMA=n warning]
[sfr@canb.auug.org.au: better checks before using hugetlb_cma]
  Link: http://lkml.kernel.org/r/20200721205716.6dbaa56b@canb.auug.org.au

Fixes: cf11e85fc08c ("mm: hugetlb: optionally allocate gigantic hugepages using cma")
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200710005726.36068-1-song.bao.hua@hisilicon.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/hugetlb.c |   15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -46,7 +46,10 @@ int hugetlb_max_hstate __read_mostly;
 unsigned int default_hstate_idx;
 struct hstate hstates[HUGE_MAX_HSTATE];
 
+#ifdef CONFIG_CMA
 static struct cma *hugetlb_cma[MAX_NUMNODES];
+#endif
+static unsigned long hugetlb_cma_size __initdata;
 
 /*
  * Minimum page order among possible hugepage sizes, set to a proper value
@@ -1236,9 +1239,10 @@ static void free_gigantic_page(struct pa
 	 * If the page isn't allocated using the cma allocator,
 	 * cma_release() returns false.
 	 */
-	if (IS_ENABLED(CONFIG_CMA) &&
-	    cma_release(hugetlb_cma[page_to_nid(page)], page, 1 << order))
+#ifdef CONFIG_CMA
+	if (cma_release(hugetlb_cma[page_to_nid(page)], page, 1 << order))
 		return;
+#endif
 
 	free_contig_range(page_to_pfn(page), 1 << order);
 }
@@ -1249,7 +1253,8 @@ static struct page *alloc_gigantic_page(
 {
 	unsigned long nr_pages = 1UL << huge_page_order(h);
 
-	if (IS_ENABLED(CONFIG_CMA)) {
+#ifdef CONFIG_CMA
+	{
 		struct page *page;
 		int node;
 
@@ -1263,6 +1268,7 @@ static struct page *alloc_gigantic_page(
 				return page;
 		}
 	}
+#endif
 
 	return alloc_contig_pages(nr_pages, gfp_mask, nid, nodemask);
 }
@@ -2572,7 +2578,7 @@ static void __init hugetlb_hstate_alloc_
 
 	for (i = 0; i < h->max_huge_pages; ++i) {
 		if (hstate_is_gigantic(h)) {
-			if (IS_ENABLED(CONFIG_CMA) && hugetlb_cma[0]) {
+			if (hugetlb_cma_size) {
 				pr_warn_once("HugeTLB: hugetlb_cma is enabled, skip boot time allocation\n");
 				break;
 			}
@@ -5548,7 +5554,6 @@ void move_hugetlb_state(struct page *old
 }
 
 #ifdef CONFIG_CMA
-static unsigned long hugetlb_cma_size __initdata;
 static bool cma_reserve_called __initdata;
 
 static int __init cmdline_parse_hugetlb_cma(char *p)

[PATCH 5.7 164/179] khugepaged: fix null-pointer dereference due to race

[Greg Kroah-Hartman]

From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

commit 594cced14ad3903166c8b091ff96adac7552f0b3 upstream.

khugepaged has to drop mmap lock several times while collapsing a page.
The situation can change while the lock is dropped and we need to
re-validate that the VMA is still in place and the PMD is still subject
for collapse.

But we miss one corner case: while collapsing an anonymous pages the VMA
could be replaced with file VMA.  If the file VMA doesn't have any
private pages we get NULL pointer dereference:

	general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
	KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
	anon_vma_lock_write include/linux/rmap.h:120 [inline]
	collapse_huge_page mm/khugepaged.c:1110 [inline]
	khugepaged_scan_pmd mm/khugepaged.c:1349 [inline]
	khugepaged_scan_mm_slot mm/khugepaged.c:2110 [inline]
	khugepaged_do_scan mm/khugepaged.c:2193 [inline]
	khugepaged+0x3bba/0x5a10 mm/khugepaged.c:2238

The fix is to make sure that the VMA is anonymous in
hugepage_vma_revalidate().  The helper is only used for collapsing
anonymous pages.

Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Reported-by: syzbot+ed318e8b790ca72c5ad0@syzkaller.appspotmail.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200722121439.44328-1-kirill.shutemov@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/khugepaged.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -873,6 +873,9 @@ static int hugepage_vma_revalidate(struc
 		return SCAN_ADDRESS_RANGE;
 	if (!hugepage_vma_check(vma, vma->vm_flags))
 		return SCAN_VMA_CHECK;
+	/* Anon VMA expected */
+	if (!vma->anon_vma || vma->vm_ops)
+		return SCAN_VMA_CHECK;
 	return 0;
 }
 

[PATCH 5.7 165/179] io-mapping: indicate mapping failure

[Greg Kroah-Hartman]

From: Michael J. Ruhl <michael.j.ruhl@intel.com>

commit e0b3e0b1a04367fc15c07f44e78361545b55357c upstream.

The !ATOMIC_IOMAP version of io_maping_init_wc will always return
success, even when the ioremap fails.

Since the ATOMIC_IOMAP version returns NULL when the init fails, and
callers check for a NULL return on error this is unexpected.

During a device probe, where the ioremap failed, a crash can look like
this:

    BUG: unable to handle page fault for address: 0000000000210000
     #PF: supervisor write access in kernel mode
     #PF: error_code(0x0002) - not-present page
     Oops: 0002 [#1] PREEMPT SMP
     CPU: 0 PID: 177 Comm:
     RIP: 0010:fill_page_dma [i915]
       gen8_ppgtt_create [i915]
       i915_ppgtt_create [i915]
       intel_gt_init [i915]
       i915_gem_init [i915]
       i915_driver_probe [i915]
       pci_device_probe
       really_probe
       driver_probe_device

The remap failure occurred much earlier in the probe.  If it had been
propagated, the driver would have exited with an error.

Return NULL on ioremap failure.

[akpm@linux-foundation.org: detect ioremap_wc() errors earlier]

Fixes: cafaf14a5d8f ("io-mapping: Always create a struct to hold metadata about the io-mapping")
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200721171936.81563-1-michael.j.ruhl@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 include/linux/io-mapping.h |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -107,9 +107,12 @@ io_mapping_init_wc(struct io_mapping *io
 		   resource_size_t base,
 		   unsigned long size)
 {
+	iomap->iomem = ioremap_wc(base, size);
+	if (!iomap->iomem)
+		return NULL;
+
 	iomap->base = base;
 	iomap->size = size;
-	iomap->iomem = ioremap_wc(base, size);
 #if defined(pgprot_noncached_wc) /* archs can't agree on a name ... */
 	iomap->prot = pgprot_noncached_wc(PAGE_KERNEL);
 #elif defined(pgprot_writecombine)

[PATCH 5.7 166/179] mmc: sdhci-of-aspeed: Fix clock divider calculation

[Greg Kroah-Hartman]

From: Eddie James <eajames@linux.ibm.com>

commit ebd4050c6144b38098d8eed34df461e5e3fa82a9 upstream.

When calculating the clock divider, start dividing at 2 instead of 1.
The divider is divided by two at the end of the calculation, so starting
at 1 may result in a divider of 0, which shouldn't happen.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Joel Stanley <joel@jms.id.au>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200709195706.12741-3-eajames@linux.ibm.com
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/mmc/host/sdhci-of-aspeed.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mmc/host/sdhci-of-aspeed.c
+++ b/drivers/mmc/host/sdhci-of-aspeed.c
@@ -68,7 +68,7 @@ static void aspeed_sdhci_set_clock(struc
 	if (WARN_ON(clock > host->max_clk))
 		clock = host->max_clk;
 
-	for (div = 1; div < 256; div *= 2) {
+	for (div = 2; div < 256; div *= 2) {
 		if ((parent / div) <= clock)
 			break;
 	}

[PATCH 5.7 167/179] drm/amdgpu: Fix NULL dereference in dpm sysfs handlers

[Greg Kroah-Hartman]

From: Paweł Gronowski <me@woland.xyz>

commit 38e0c89a19fd13f28d2b4721035160a3e66e270b upstream.

NULL dereference occurs when string that is not ended with space or
newline is written to some dpm sysfs interface (for example pp_dpm_sclk).
This happens because strsep replaces the tmp with NULL if the delimiter
is not present in string, which is then dereferenced by tmp[0].

Reproduction example:
sudo sh -c 'echo -n 1 > /sys/class/drm/card0/device/pp_dpm_sclk'

Signed-off-by: Paweł Gronowski <me@woland.xyz>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -775,8 +775,7 @@ static ssize_t amdgpu_set_pp_od_clk_volt
 		tmp_str++;
 	while (isspace(*++tmp_str));
 
-	while (tmp_str[0]) {
-		sub_str = strsep(&tmp_str, delimiter);
+	while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
 		ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
 		if (ret)
 			return -EINVAL;
@@ -1036,8 +1035,7 @@ static ssize_t amdgpu_read_mask(const ch
 	memcpy(buf_cpy, buf, bytes);
 	buf_cpy[bytes] = '\0';
 	tmp = buf_cpy;
-	while (tmp[0]) {
-		sub_str = strsep(&tmp, delimiter);
+	while ((sub_str = strsep(&tmp, delimiter)) != NULL) {
 		if (strlen(sub_str)) {
 			ret = kstrtol(sub_str, 0, &level);
 			if (ret)
@@ -1634,8 +1632,7 @@ static ssize_t amdgpu_set_pp_power_profi
 			i++;
 		memcpy(buf_cpy, buf, count-i);
 		tmp_str = buf_cpy;
-		while (tmp_str[0]) {
-			sub_str = strsep(&tmp_str, delimiter);
+		while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
 			ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
 			if (ret)
 				return -EINVAL;

[PATCH 5.7 168/179] drm/amd/powerplay: fix a crash when overclocking Vega M

[Greg Kroah-Hartman]

From: Qiu Wenbo <qiuwenbo@phytium.com.cn>

commit 88bb16ad998a0395fe4b346b7d3f621aaa0a2324 upstream.

Avoid kernel crash when vddci_control is SMU7_VOLTAGE_CONTROL_NONE and
vddci_voltage_table is empty. It has been tested on Intel Hades Canyon
(i7-8809G).

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208489
Fixes: ac7822b0026f ("drm/amd/powerplay: add smumgr support for VEGAM (v2)")
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Qiu Wenbo <qiuwenbo@phytium.com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c
@@ -642,9 +642,6 @@ static int vegam_get_dependency_volt_by_
 
 	/* sclk is bigger than max sclk in the dependence table */
 	*voltage |= (dep_table->entries[i - 1].vddc * VOLTAGE_SCALE) << VDDC_SHIFT;
-	vddci = phm_find_closest_vddci(&(data->vddci_voltage_table),
-			(dep_table->entries[i - 1].vddc -
-					(uint16_t)VDDC_VDDCI_DELTA));
 
 	if (SMU7_VOLTAGE_CONTROL_NONE == data->vddci_control)
 		*voltage |= (data->vbios_boot_state.vddci_bootup_value *
@@ -652,8 +649,13 @@ static int vegam_get_dependency_volt_by_
 	else if (dep_table->entries[i - 1].vddci)
 		*voltage |= (dep_table->entries[i - 1].vddci *
 				VOLTAGE_SCALE) << VDDC_SHIFT;
-	else
+	else {
+		vddci = phm_find_closest_vddci(&(data->vddci_voltage_table),
+				(dep_table->entries[i - 1].vddc -
+						(uint16_t)VDDC_VDDCI_DELTA));
+
 		*voltage |= (vddci * VOLTAGE_SCALE) << VDDCI_SHIFT;
+	}
 
 	if (SMU7_VOLTAGE_CONTROL_NONE == data->mvdd_control)
 		*mvdd = data->vbios_boot_state.mvdd_bootup_value * VOLTAGE_SCALE;

[PATCH 5.7 169/179] arm64: vdso32: Fix --prefix= value for newer versions of clang

[Greg Kroah-Hartman]

From: Nathan Chancellor <natechancellor@gmail.com>

commit 7b7891c7bdfd61fc9ed6747a0a05efe2394dddc6 upstream.

Newer versions of clang only look for $(COMPAT_GCC_TOOLCHAIN_DIR)as [1],
rather than $(COMPAT_GCC_TOOLCHAIN_DIR)$(CROSS_COMPILE_COMPAT)as,
resulting in the following build error:

$ make -skj"$(nproc)" ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
CROSS_COMPILE_COMPAT=arm-linux-gnueabi- LLVM=1 O=out/aarch64 distclean \
defconfig arch/arm64/kernel/vdso32/
...
/home/nathan/cbl/toolchains/llvm-binutils/bin/as: unrecognized option '-EL'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
make[3]: *** [arch/arm64/kernel/vdso32/Makefile:181: arch/arm64/kernel/vdso32/note.o] Error 1
...

Adding the value of CROSS_COMPILE_COMPAT (adding notdir to account for a
full path for CROSS_COMPILE_COMPAT) fixes this issue, which matches the
solution done for the main Makefile [2].

[1]: https://github.com/llvm/llvm-project/commit/3452a0d8c17f7166f479706b293caf6ac76ffd90
[2]: https://lore.kernel.org/lkml/20200721173125.1273884-1-maskray@google.com/

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: stable@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1099
Link: https://lore.kernel.org/r/20200723041509.400450-1-natechancellor@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/kernel/vdso32/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -14,7 +14,7 @@ COMPAT_GCC_TOOLCHAIN_DIR := $(dir $(shel
 COMPAT_GCC_TOOLCHAIN := $(realpath $(COMPAT_GCC_TOOLCHAIN_DIR)/..)
 
 CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
-CC_COMPAT_CLANG_FLAGS += --prefix=$(COMPAT_GCC_TOOLCHAIN_DIR)
+CC_COMPAT_CLANG_FLAGS += --prefix=$(COMPAT_GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE_COMPAT))
 CC_COMPAT_CLANG_FLAGS += -no-integrated-as -Qunused-arguments
 ifneq ($(COMPAT_GCC_TOOLCHAIN),)
 CC_COMPAT_CLANG_FLAGS += --gcc-toolchain=$(COMPAT_GCC_TOOLCHAIN)

[PATCH 5.7 170/179] parisc: Add atomic64_set_release() define to avoid CPU soft lockups

[Greg Kroah-Hartman]

From: John David Anglin <dave.anglin@bell.net>

commit be6577af0cef934ccb036445314072e8cb9217b9 upstream.

Stalls are quite frequent with recent kernels. I enabled
CONFIG_SOFTLOCKUP_DETECTOR and I caught the following stall:

watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [cc1:22803]
CPU: 0 PID: 22803 Comm: cc1 Not tainted 5.6.17+ #3
Hardware name: 9000/800/rp3440
 IAOQ[0]: d_alloc_parallel+0x384/0x688
 IAOQ[1]: d_alloc_parallel+0x388/0x688
 RP(r2): d_alloc_parallel+0x134/0x688
Backtrace:
 [<000000004036974c>] __lookup_slow+0xa4/0x200
 [<0000000040369fc8>] walk_component+0x288/0x458
 [<000000004036a9a0>] path_lookupat+0x88/0x198
 [<000000004036e748>] filename_lookup+0xa0/0x168
 [<000000004036e95c>] user_path_at_empty+0x64/0x80
 [<000000004035d93c>] vfs_statx+0x104/0x158
 [<000000004035dfcc>] __do_sys_lstat64+0x44/0x80
 [<000000004035e5a0>] sys_lstat64+0x20/0x38
 [<0000000040180054>] syscall_exit+0x0/0x14

The code was stuck in this loop in d_alloc_parallel:

    4037d414:   0e 00 10 dc     ldd 0(r16),ret0
    4037d418:   c7 fc 5f ed     bb,< ret0,1f,4037d414 <d_alloc_parallel+0x384>
    4037d41c:   08 00 02 40     nop

This is the inner loop of bit_spin_lock which is called by hlist_bl_unlock in
d_alloc_parallel:

static inline void bit_spin_lock(int bitnum, unsigned long *addr)
{
        /*
         * Assuming the lock is uncontended, this never enters
         * the body of the outer loop. If it is contended, then
         * within the inner loop a non-atomic test is used to
         * busywait with less bus contention for a good time to
         * attempt to acquire the lock bit.
         */
        preempt_disable();
#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
        while (unlikely(test_and_set_bit_lock(bitnum, addr))) {
                preempt_enable();
                do {
                        cpu_relax();
                } while (test_bit(bitnum, addr));
                preempt_disable();
        }
#endif
        __acquire(bitlock);
}

After consideration, I realized that we must be losing bit unlocks.
Then, I noticed that we missed defining atomic64_set_release().
Adding this define fixes the stalls in bit operations.

Signed-off-by: Dave Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/include/asm/atomic.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -212,6 +212,8 @@ atomic64_set(atomic64_t *v, s64 i)
 	_atomic_spin_unlock_irqrestore(v, flags);
 }
 
+#define atomic64_set_release(v, i)	atomic64_set((v), (i))
+
 static __inline__ s64
 atomic64_read(const atomic64_t *v)
 {

[PATCH 5.7 171/179] x86, vmlinux.lds: Page-align end of ..page_aligned sections

[Greg Kroah-Hartman]

From: Joerg Roedel <jroedel@suse.de>

commit de2b41be8fcccb2f5b6c480d35df590476344201 upstream.

On x86-32 the idt_table with 256 entries needs only 2048 bytes. It is
page-aligned, but the end of the .bss..page_aligned section is not
guaranteed to be page-aligned.

As a result, objects from other .bss sections may end up on the same 4k
page as the idt_table, and will accidentially get mapped read-only during
boot, causing unexpected page-faults when the kernel writes to them.

This could be worked around by making the objects in the page aligned
sections page sized, but that's wrong.

Explicit sections which store only page aligned objects have an implicit
guarantee that the object is alone in the page in which it is placed. That
works for all objects except the last one. That's inconsistent.

Enforcing page sized objects for these sections would wreckage memory
sanitizers, because the object becomes artificially larger than it should
be and out of bound access becomes legit.

Align the end of the .bss..page_aligned and .data..page_aligned section on
page-size so all objects places in these sections are guaranteed to have
their own page.

[ tglx: Amended changelog ]

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200721093448.10417-1-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/kernel/vmlinux.lds.S     |    1 +
 include/asm-generic/vmlinux.lds.h |    5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -359,6 +359,7 @@ SECTIONS
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
 		__bss_start = .;
 		*(.bss..page_aligned)
+		. = ALIGN(PAGE_SIZE);
 		*(BSS_MAIN)
 		BSS_DECRYPTED
 		. = ALIGN(PAGE_SIZE);
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -341,7 +341,8 @@
 
 #define PAGE_ALIGNED_DATA(page_align)					\
 	. = ALIGN(page_align);						\
-	*(.data..page_aligned)
+	*(.data..page_aligned)						\
+	. = ALIGN(page_align);
 
 #define READ_MOSTLY_DATA(align)						\
 	. = ALIGN(align);						\
@@ -727,7 +728,9 @@
 	. = ALIGN(bss_align);						\
 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {				\
 		BSS_FIRST_SECTIONS					\
+		. = ALIGN(PAGE_SIZE);					\
 		*(.bss..page_aligned)					\
+		. = ALIGN(PAGE_SIZE);					\
 		*(.dynbss)						\
 		*(BSS_MAIN)						\
 		*(COMMON)						\

[PATCH 5.7 172/179] ASoC: rt5670: Add new gpio1_is_ext_spk_en quirk and enable it on the Lenovo Miix 2 10

[Greg Kroah-Hartman]

From: Hans de Goede <hdegoede@redhat.com>

commit 85ca6b17e2bb96b19caac3b02c003d670b66de96 upstream.

The Lenovo Miix 2 10 has a keyboard dock with extra speakers in the dock.
Rather then the ACL5672's GPIO1 pin being used as IRQ to the CPU, it is
actually used to enable the amplifier for these speakers
(the IRQ to the CPU comes directly from the jack-detect switch).

Add a quirk for having an ext speaker-amplifier enable pin on GPIO1
and replace the Lenovo Miix 2 10's dmi_system_id table entry's wrong
GPIO_DEV quirk (which needs to be renamed to GPIO1_IS_IRQ) with the
new RT5670_GPIO1_IS_EXT_SPK_EN quirk, so that we enable the external
speaker-amplifier as necessary.

Also update the ident field for the dmi_system_id table entry, the
Miix models are not Thinkpads.

Fixes: 67e03ff3f32f ("ASoC: codecs: rt5670: add Thinkpad Tablet 10 quirk")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1786723
Link: https://lore.kernel.org/r/20200628155231.71089-4-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 include/sound/rt5670.h    |    1 
 sound/soc/codecs/rt5670.c |   71 ++++++++++++++++++++++++++++++++++++----------
 2 files changed, 57 insertions(+), 15 deletions(-)

--- a/include/sound/rt5670.h
+++ b/include/sound/rt5670.h
@@ -12,6 +12,7 @@ struct rt5670_platform_data {
 	int jd_mode;
 	bool in2_diff;
 	bool dev_gpio;
+	bool gpio1_is_ext_spk_en;
 
 	bool dmic_en;
 	unsigned int dmic1_data_pin;
--- a/sound/soc/codecs/rt5670.c
+++ b/sound/soc/codecs/rt5670.c
@@ -31,18 +31,19 @@
 #include "rt5670.h"
 #include "rt5670-dsp.h"
 
-#define RT5670_DEV_GPIO     BIT(0)
-#define RT5670_IN2_DIFF     BIT(1)
-#define RT5670_DMIC_EN      BIT(2)
-#define RT5670_DMIC1_IN2P   BIT(3)
-#define RT5670_DMIC1_GPIO6  BIT(4)
-#define RT5670_DMIC1_GPIO7  BIT(5)
-#define RT5670_DMIC2_INR    BIT(6)
-#define RT5670_DMIC2_GPIO8  BIT(7)
-#define RT5670_DMIC3_GPIO5  BIT(8)
-#define RT5670_JD_MODE1     BIT(9)
-#define RT5670_JD_MODE2     BIT(10)
-#define RT5670_JD_MODE3     BIT(11)
+#define RT5670_DEV_GPIO			BIT(0)
+#define RT5670_IN2_DIFF			BIT(1)
+#define RT5670_DMIC_EN			BIT(2)
+#define RT5670_DMIC1_IN2P		BIT(3)
+#define RT5670_DMIC1_GPIO6		BIT(4)
+#define RT5670_DMIC1_GPIO7		BIT(5)
+#define RT5670_DMIC2_INR		BIT(6)
+#define RT5670_DMIC2_GPIO8		BIT(7)
+#define RT5670_DMIC3_GPIO5		BIT(8)
+#define RT5670_JD_MODE1			BIT(9)
+#define RT5670_JD_MODE2			BIT(10)
+#define RT5670_JD_MODE3			BIT(11)
+#define RT5670_GPIO1_IS_EXT_SPK_EN	BIT(12)
 
 static unsigned long rt5670_quirk;
 static unsigned int quirk_override;
@@ -1447,6 +1448,33 @@ static int rt5670_hp_event(struct snd_so
 	return 0;
 }
 
+static int rt5670_spk_event(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+	struct rt5670_priv *rt5670 = snd_soc_component_get_drvdata(component);
+
+	if (!rt5670->pdata.gpio1_is_ext_spk_en)
+		return 0;
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2,
+				   RT5670_GP1_OUT_MASK, RT5670_GP1_OUT_HI);
+		break;
+
+	case SND_SOC_DAPM_PRE_PMD:
+		regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2,
+				   RT5670_GP1_OUT_MASK, RT5670_GP1_OUT_LO);
+		break;
+
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
 static int rt5670_bst1_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *kcontrol, int event)
 {
@@ -1860,7 +1888,9 @@ static const struct snd_soc_dapm_widget
 };
 
 static const struct snd_soc_dapm_widget rt5672_specific_dapm_widgets[] = {
-	SND_SOC_DAPM_PGA("SPO Amp", SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA_E("SPO Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
+			   rt5670_spk_event, SND_SOC_DAPM_PRE_PMD |
+			   SND_SOC_DAPM_POST_PMU),
 	SND_SOC_DAPM_OUTPUT("SPOLP"),
 	SND_SOC_DAPM_OUTPUT("SPOLN"),
 	SND_SOC_DAPM_OUTPUT("SPORP"),
@@ -2857,14 +2887,14 @@ static const struct dmi_system_id dmi_pl
 	},
 	{
 		.callback = rt5670_quirk_cb,
-		.ident = "Lenovo Thinkpad Tablet 10",
+		.ident = "Lenovo Miix 2 10",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Miix 2 10"),
 		},
 		.driver_data = (unsigned long *)(RT5670_DMIC_EN |
 						 RT5670_DMIC1_IN2P |
-						 RT5670_DEV_GPIO |
+						 RT5670_GPIO1_IS_EXT_SPK_EN |
 						 RT5670_JD_MODE2),
 	},
 	{
@@ -2924,6 +2954,10 @@ static int rt5670_i2c_probe(struct i2c_c
 		rt5670->pdata.dev_gpio = true;
 		dev_info(&i2c->dev, "quirk dev_gpio\n");
 	}
+	if (rt5670_quirk & RT5670_GPIO1_IS_EXT_SPK_EN) {
+		rt5670->pdata.gpio1_is_ext_spk_en = true;
+		dev_info(&i2c->dev, "quirk GPIO1 is external speaker enable\n");
+	}
 	if (rt5670_quirk & RT5670_IN2_DIFF) {
 		rt5670->pdata.in2_diff = true;
 		dev_info(&i2c->dev, "quirk IN2_DIFF\n");
@@ -3022,6 +3056,13 @@ static int rt5670_i2c_probe(struct i2c_c
 		regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2,
 				   RT5670_GP1_PF_MASK, RT5670_GP1_PF_OUT);
 	}
+
+	if (rt5670->pdata.gpio1_is_ext_spk_en) {
+		regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL1,
+				   RT5670_GP1_PIN_MASK, RT5670_GP1_PIN_GPIO1);
+		regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2,
+				   RT5670_GP1_PF_MASK, RT5670_GP1_PF_OUT);
+	}
 
 	if (rt5670->pdata.jd_mode) {
 		regmap_update_bits(rt5670->regmap, RT5670_GLB_CLK,

[PATCH 5.7 173/179] ASoC: qcom: Drop HAS_DMA dependency to fix link failure

[Greg Kroah-Hartman]

From: Geert Uytterhoeven <geert@linux-m68k.org>

commit b6aa06de7757667bac88997a8807b143b8436035 upstream.

When building on allyesconfig kernel for a NO_DMA=y platform (e.g.
Sun-3), CONFIG_SND_SOC_QCOM_COMMON=y, but CONFIG_SND_SOC_QDSP6_AFE=n,
leading to a link failure:

    sound/soc/qcom/common.o: In function `qcom_snd_parse_of':
    common.c:(.text+0x2e2): undefined reference to `q6afe_is_rx_port'

While SND_SOC_QDSP6 depends on HAS_DMA, SND_SOC_MSM8996 and SND_SOC_SDM845
don't, so the following warning is seen:

    WARNING: unmet direct dependencies detected for SND_SOC_QDSP6
      Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && QCOM_APR [=y] && HAS_DMA [=n]
      Selected by [y]:
      - SND_SOC_MSM8996 [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && QCOM_APR [=y]
      - SND_SOC_SDM845 [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && QCOM_APR [=y] && CROS_EC [=y] && I2C [=y] && SOUNDWIRE [=y]

Until recently, this warning was harmless (from a compile-testing
point-of-view), but the new user of q6afe_is_rx_port() turned this into
a hard failure.

As the QDSP6 driver itself builds fine if NO_DMA=y, and it depends on
QCOM_APR (which in turns depends on ARCH_QCOM || COMPILE_TEST), it is
safe to increase compile testing coverage.  Hence fix the link failure
by dropping the HAS_DMA dependency of SND_SOC_QDSP6.

Fixes: a2120089251f1fe2 ("ASoC: qcom: common: set correct directions for dailinks")
Fixes: 6b1687bf76ef84cb ("ASoC: qcom: add sdm845 sound card support")
Fixes: a6f933f63f2ffdb2 ("ASoC: qcom: apq8096: Add db820c machine driver")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20200629122443.21736-1-geert@linux-m68k.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/qcom/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -72,7 +72,7 @@ config SND_SOC_QDSP6_ASM_DAI
 
 config SND_SOC_QDSP6
 	tristate "SoC ALSA audio driver for QDSP6"
-	depends on QCOM_APR && HAS_DMA
+	depends on QCOM_APR
 	select SND_SOC_QDSP6_COMMON
 	select SND_SOC_QDSP6_CORE
 	select SND_SOC_QDSP6_AFE

[PATCH 5.7 174/179] ASoC: topology: fix kernel oops on route addition error

[Greg Kroah-Hartman]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

commit 6f0307df83f2aa6bdf656c2219c89ce96502d20e upstream.

When errors happens while loading graph components, the kernel oopses
while trying to remove all topology components. This can be
root-caused to a list pointing to memory that was already freed on
error.

remove_route() is already called on errors and will perform the
required cleanups so there's no need to free the route memory in
soc_tplg_dapm_graph_elems_load() if the route was added to the
list. We do however want to free the routes allocated but not added to
the list.

Fixes: 7df04ea7a31ea ('ASoC: topology: modify dapm route loading routine and add dapm route unloading')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200707203749.113883-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/soc-topology.c |   22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1285,17 +1285,29 @@ static int soc_tplg_dapm_graph_elems_loa
 		list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
 
 		ret = soc_tplg_add_route(tplg, routes[i]);
-		if (ret < 0)
+		if (ret < 0) {
+			/*
+			 * this route was added to the list, it will
+			 * be freed in remove_route() so increment the
+			 * counter to skip it in the error handling
+			 * below.
+			 */
+			i++;
 			break;
+		}
 
 		/* add route, but keep going if some fail */
 		snd_soc_dapm_add_routes(dapm, routes[i], 1);
 	}
 
-	/* free memory allocated for all dapm routes in case of error */
-	if (ret < 0)
-		for (i = 0; i < count ; i++)
-			kfree(routes[i]);
+	/*
+	 * free memory allocated for all dapm routes not added to the
+	 * list in case of error
+	 */
+	if (ret < 0) {
+		while (i < count)
+			kfree(routes[i++]);
+	}
 
 	/*
 	 * free pointer to array of dapm routes as this is no longer needed.

[PATCH 5.7 175/179] ASoC: topology: fix tlvs in error handling for widget_dmixer

[Greg Kroah-Hartman]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

commit 8edac489e7c3fce44208373bb3e7b5835a672c66 upstream.

we need to free all allocated tlvs, not just the one allocated in
the loop before releasing kcontrols - other the tlvs references will
leak.

Fixes: 9f90af3a995298 ('ASoC: topology: Consolidate and fix asoc_tplg_dapm_widget_*_create flow')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200707203749.113883-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/soc-topology.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1395,7 +1395,6 @@ static struct snd_kcontrol_new *soc_tplg
 		if (err < 0) {
 			dev_err(tplg->dev, "ASoC: failed to init %s\n",
 				mc->hdr.name);
-			soc_tplg_free_tlv(tplg, &kc[i]);
 			goto err_sm;
 		}
 	}
@@ -1403,6 +1402,7 @@ static struct snd_kcontrol_new *soc_tplg
 
 err_sm:
 	for (; i >= 0; i--) {
+		soc_tplg_free_tlv(tplg, &kc[i]);
 		sm = (struct soc_mixer_control *)kc[i].private_value;
 		kfree(sm);
 		kfree(kc[i].name);

[PATCH 5.7 176/179] ASoC: Intel: bdw-rt5677: fix non BE conversion

[Greg Kroah-Hartman]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

commit fffebe8a8339c7e56db4126653a3bc0c0c5592cf upstream.

When SOF is used, the normal links are converted into DPCM ones. This
generates an error

[ 58.276668] bdw-rt5677 bdw-rt5677: CPU DAI spi-RT5677AA:00 for rtd
Wake on Voice does not support playback
[ 58.276676] bdw-rt5677 bdw-rt5677: ASoC: can't create pcm Wake on
Voice :-22

Fix by forcing the capture direction.

Fixes: b73287f0b0745 ('ASoC: soc-pcm: dpcm: fix playback/capture checks')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Curtis Malainey <curtis@malainey.com>
Link: https://lore.kernel.org/r/20200707210439.115300-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/soc/intel/boards/bdw-rt5677.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/soc/intel/boards/bdw-rt5677.c
+++ b/sound/soc/intel/boards/bdw-rt5677.c
@@ -328,6 +328,7 @@ static struct snd_soc_dai_link bdw_rt567
 	{
 		.name = "Codec DSP",
 		.stream_name = "Wake on Voice",
+		.capture_only = 1,
 		.ops = &bdw_rt5677_dsp_ops,
 		SND_SOC_DAILINK_REG(dsp),
 	},

[PATCH 5.7 177/179] dm integrity: fix integrity recalculation that is improperly skipped

[Greg Kroah-Hartman]

From: Mikulas Patocka <mpatocka@redhat.com>

commit 5df96f2b9f58a5d2dc1f30fe7de75e197f2c25f2 upstream.

Commit adc0daad366b62ca1bce3e2958a40b0b71a8b8b3 ("dm: report suspended
device during destroy") broke integrity recalculation.

The problem is dm_suspended() returns true not only during suspend,
but also during resume. So this race condition could occur:
1. dm_integrity_resume calls queue_work(ic->recalc_wq, &ic->recalc_work)
2. integrity_recalc (&ic->recalc_work) preempts the current thread
3. integrity_recalc calls if (unlikely(dm_suspended(ic->ti))) goto unlock_ret;
4. integrity_recalc exits and no recalculating is done.

To fix this race condition, add a function dm_post_suspending that is
only true during the postsuspend phase and use it instead of
dm_suspended().

Signed-off-by: Mikulas Patocka <mpatocka redhat com>
Fixes: adc0daad366b ("dm: report suspended device during destroy")
Cc: stable vger kernel org # v4.18+
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/md/dm-integrity.c     |    4 ++--
 drivers/md/dm.c               |   17 +++++++++++++++++
 include/linux/device-mapper.h |    1 +
 3 files changed, 20 insertions(+), 2 deletions(-)

--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -2424,7 +2424,7 @@ static void integrity_writer(struct work
 	unsigned prev_free_sectors;
 
 	/* the following test is not needed, but it tests the replay code */
-	if (unlikely(dm_suspended(ic->ti)) && !ic->meta_dev)
+	if (unlikely(dm_post_suspending(ic->ti)) && !ic->meta_dev)
 		return;
 
 	spin_lock_irq(&ic->endio_wait.lock);
@@ -2485,7 +2485,7 @@ static void integrity_recalc(struct work
 
 next_chunk:
 
-	if (unlikely(dm_suspended(ic->ti)))
+	if (unlikely(dm_post_suspending(ic->ti)))
 		goto unlock_ret;
 
 	range.logical_sector = le64_to_cpu(ic->sb->recalc_sector);
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -142,6 +142,7 @@ EXPORT_SYMBOL_GPL(dm_bio_get_target_bio_
 #define DMF_NOFLUSH_SUSPENDING 5
 #define DMF_DEFERRED_REMOVE 6
 #define DMF_SUSPENDED_INTERNALLY 7
+#define DMF_POST_SUSPENDING 8
 
 #define DM_NUMA_NODE NUMA_NO_NODE
 static int dm_numa_node = DM_NUMA_NODE;
@@ -2385,6 +2386,7 @@ static void __dm_destroy(struct mapped_d
 	if (!dm_suspended_md(md)) {
 		dm_table_presuspend_targets(map);
 		set_bit(DMF_SUSPENDED, &md->flags);
+		set_bit(DMF_POST_SUSPENDING, &md->flags);
 		dm_table_postsuspend_targets(map);
 	}
 	/* dm_put_live_table must be before msleep, otherwise deadlock is possible */
@@ -2743,7 +2745,9 @@ retry:
 	if (r)
 		goto out_unlock;
 
+	set_bit(DMF_POST_SUSPENDING, &md->flags);
 	dm_table_postsuspend_targets(map);
+	clear_bit(DMF_POST_SUSPENDING, &md->flags);
 
 out_unlock:
 	mutex_unlock(&md->suspend_lock);
@@ -2840,7 +2844,9 @@ static void __dm_internal_suspend(struct
 	(void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE,
 			    DMF_SUSPENDED_INTERNALLY);
 
+	set_bit(DMF_POST_SUSPENDING, &md->flags);
 	dm_table_postsuspend_targets(map);
+	clear_bit(DMF_POST_SUSPENDING, &md->flags);
 }
 
 static void __dm_internal_resume(struct mapped_device *md)
@@ -3001,6 +3007,11 @@ int dm_suspended_md(struct mapped_device
 	return test_bit(DMF_SUSPENDED, &md->flags);
 }
 
+static int dm_post_suspending_md(struct mapped_device *md)
+{
+	return test_bit(DMF_POST_SUSPENDING, &md->flags);
+}
+
 int dm_suspended_internally_md(struct mapped_device *md)
 {
 	return test_bit(DMF_SUSPENDED_INTERNALLY, &md->flags);
@@ -3017,6 +3028,12 @@ int dm_suspended(struct dm_target *ti)
 }
 EXPORT_SYMBOL_GPL(dm_suspended);
 
+int dm_post_suspending(struct dm_target *ti)
+{
+	return dm_post_suspending_md(dm_table_get_md(ti->table));
+}
+EXPORT_SYMBOL_GPL(dm_post_suspending);
+
 int dm_noflush_suspending(struct dm_target *ti)
 {
 	return __noflush_suspending(dm_table_get_md(ti->table));
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -426,6 +426,7 @@ const char *dm_device_name(struct mapped
 int dm_copy_name_and_uuid(struct mapped_device *md, char *name, char *uuid);
 struct gendisk *dm_disk(struct mapped_device *md);
 int dm_suspended(struct dm_target *ti);
+int dm_post_suspending(struct dm_target *ti);
 int dm_noflush_suspending(struct dm_target *ti);
 void dm_accept_partial_bio(struct bio *bio, unsigned n_sectors);
 union map_info *dm_get_rq_mapinfo(struct request *rq);

[PATCH 5.7 178/179] ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb

[Greg Kroah-Hartman]

From: Qiujun Huang <hqjagain@gmail.com>

commit 2bbcaaee1fcbd83272e29f31e2bb7e70d8c49e05 upstream.

In ath9k_hif_usb_rx_cb interface number is assumed to be 0.
usb_ifnum_to_if(urb->dev, 0)
But it isn't always true.

The case reported by syzbot:
https://lore.kernel.org/linux-usb/000000000000666c9c05a1c05d12@google.com
usb 2-1: new high-speed USB device number 2 using dummy_hcd
usb 2-1: config 1 has an invalid interface number: 2 but max is 0
usb 2-1: config 1 has no interface number 0
usb 2-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice=
1.08
usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
general protection fault, probably for non-canonical address
0xdffffc0000000015: 0000 [#1] SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000a8-0x00000000000000af]
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc5-syzkaller #0

Call Trace
__usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716
dummy_timer+0x1258/0x32ae drivers/usb/gadget/udc/dummy_hcd.c:1966
call_timer_fn+0x195/0x6f0 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1449 [inline]
__run_timers kernel/time/timer.c:1773 [inline]
__run_timers kernel/time/timer.c:1740 [inline]
run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1786
__do_softirq+0x21e/0x950 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x178/0x1a0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:546 [inline]
smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1146
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829

Reported-and-tested-by: syzbot+40d5d2e8a4680952f042@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200404041838.10426-6-hqjagain@gmail.com
Cc: Viktor Jägersküpper <viktor_jaegerskuepper@freenet.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/ath/ath9k/hif_usb.c |   48 +++++++++++++++++++++++--------
 drivers/net/wireless/ath/ath9k/hif_usb.h |    5 +++
 2 files changed, 42 insertions(+), 11 deletions(-)

--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -643,9 +643,9 @@ err:
 
 static void ath9k_hif_usb_rx_cb(struct urb *urb)
 {
-	struct sk_buff *skb = (struct sk_buff *) urb->context;
-	struct hif_device_usb *hif_dev =
-		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct rx_buf *rx_buf = (struct rx_buf *)urb->context;
+	struct hif_device_usb *hif_dev = rx_buf->hif_dev;
+	struct sk_buff *skb = rx_buf->skb;
 	int ret;
 
 	if (!skb)
@@ -685,14 +685,15 @@ resubmit:
 	return;
 free:
 	kfree_skb(skb);
+	kfree(rx_buf);
 }
 
 static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
 {
-	struct sk_buff *skb = (struct sk_buff *) urb->context;
+	struct rx_buf *rx_buf = (struct rx_buf *)urb->context;
+	struct hif_device_usb *hif_dev = rx_buf->hif_dev;
+	struct sk_buff *skb = rx_buf->skb;
 	struct sk_buff *nskb;
-	struct hif_device_usb *hif_dev =
-		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int ret;
 
 	if (!skb)
@@ -750,6 +751,7 @@ resubmit:
 	return;
 free:
 	kfree_skb(skb);
+	kfree(rx_buf);
 	urb->context = NULL;
 }
 
@@ -795,7 +797,7 @@ static int ath9k_hif_usb_alloc_tx_urbs(s
 	init_usb_anchor(&hif_dev->mgmt_submitted);
 
 	for (i = 0; i < MAX_TX_URB_NUM; i++) {
-		tx_buf = kzalloc(sizeof(struct tx_buf), GFP_KERNEL);
+		tx_buf = kzalloc(sizeof(*tx_buf), GFP_KERNEL);
 		if (!tx_buf)
 			goto err;
 
@@ -832,8 +834,9 @@ static void ath9k_hif_usb_dealloc_rx_urb
 
 static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb *hif_dev)
 {
-	struct urb *urb = NULL;
+	struct rx_buf *rx_buf = NULL;
 	struct sk_buff *skb = NULL;
+	struct urb *urb = NULL;
 	int i, ret;
 
 	init_usb_anchor(&hif_dev->rx_submitted);
@@ -841,6 +844,12 @@ static int ath9k_hif_usb_alloc_rx_urbs(s
 
 	for (i = 0; i < MAX_RX_URB_NUM; i++) {
 
+		rx_buf = kzalloc(sizeof(*rx_buf), GFP_KERNEL);
+		if (!rx_buf) {
+			ret = -ENOMEM;
+			goto err_rxb;
+		}
+
 		/* Allocate URB */
 		urb = usb_alloc_urb(0, GFP_KERNEL);
 		if (urb == NULL) {
@@ -855,11 +864,14 @@ static int ath9k_hif_usb_alloc_rx_urbs(s
 			goto err_skb;
 		}
 
+		rx_buf->hif_dev = hif_dev;
+		rx_buf->skb = skb;
+
 		usb_fill_bulk_urb(urb, hif_dev->udev,
 				  usb_rcvbulkpipe(hif_dev->udev,
 						  USB_WLAN_RX_PIPE),
 				  skb->data, MAX_RX_BUF_SIZE,
-				  ath9k_hif_usb_rx_cb, skb);
+				  ath9k_hif_usb_rx_cb, rx_buf);
 
 		/* Anchor URB */
 		usb_anchor_urb(urb, &hif_dev->rx_submitted);
@@ -885,6 +897,8 @@ err_submit:
 err_skb:
 	usb_free_urb(urb);
 err_urb:
+	kfree(rx_buf);
+err_rxb:
 	ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
 	return ret;
 }
@@ -896,14 +910,21 @@ static void ath9k_hif_usb_dealloc_reg_in
 
 static int ath9k_hif_usb_alloc_reg_in_urbs(struct hif_device_usb *hif_dev)
 {
-	struct urb *urb = NULL;
+	struct rx_buf *rx_buf = NULL;
 	struct sk_buff *skb = NULL;
+	struct urb *urb = NULL;
 	int i, ret;
 
 	init_usb_anchor(&hif_dev->reg_in_submitted);
 
 	for (i = 0; i < MAX_REG_IN_URB_NUM; i++) {
 
+		rx_buf = kzalloc(sizeof(*rx_buf), GFP_KERNEL);
+		if (!rx_buf) {
+			ret = -ENOMEM;
+			goto err_rxb;
+		}
+
 		/* Allocate URB */
 		urb = usb_alloc_urb(0, GFP_KERNEL);
 		if (urb == NULL) {
@@ -918,11 +939,14 @@ static int ath9k_hif_usb_alloc_reg_in_ur
 			goto err_skb;
 		}
 
+		rx_buf->hif_dev = hif_dev;
+		rx_buf->skb = skb;
+
 		usb_fill_int_urb(urb, hif_dev->udev,
 				  usb_rcvintpipe(hif_dev->udev,
 						  USB_REG_IN_PIPE),
 				  skb->data, MAX_REG_IN_BUF_SIZE,
-				  ath9k_hif_usb_reg_in_cb, skb, 1);
+				  ath9k_hif_usb_reg_in_cb, rx_buf, 1);
 
 		/* Anchor URB */
 		usb_anchor_urb(urb, &hif_dev->reg_in_submitted);
@@ -948,6 +972,8 @@ err_submit:
 err_skb:
 	usb_free_urb(urb);
 err_urb:
+	kfree(rx_buf);
+err_rxb:
 	ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev);
 	return ret;
 }
--- a/drivers/net/wireless/ath/ath9k/hif_usb.h
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.h
@@ -86,6 +86,11 @@ struct tx_buf {
 	struct list_head list;
 };
 
+struct rx_buf {
+	struct sk_buff *skb;
+	struct hif_device_usb *hif_dev;
+};
+
 #define HIF_USB_TX_STOP  BIT(0)
 #define HIF_USB_TX_FLUSH BIT(1)
 

[PATCH 5.7 179/179] ath9k: Fix regression with Atheros 9271

[Greg Kroah-Hartman]

From: Mark O'Donovan <shiftee@posteo.net>

commit 92f53e2fda8bb9a559ad61d57bfb397ce67ed0ab upstream.

This fix allows ath9k_htc modules to connect to WLAN once again.

Fixes: 2bbcaaee1fcb ("ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208251
Signed-off-by: Mark O'Donovan <shiftee@posteo.net>
Reported-by: Roman Mamedov <rm@romanrm.net>
Tested-by: Viktor Jägersküpper <viktor_jaegerskuepper@freenet.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200711043324.8079-1-shiftee@posteo.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/ath/ath9k/hif_usb.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -733,11 +733,13 @@ static void ath9k_hif_usb_reg_in_cb(stru
 			return;
 		}
 
+		rx_buf->skb = nskb;
+
 		usb_fill_int_urb(urb, hif_dev->udev,
 				 usb_rcvintpipe(hif_dev->udev,
 						 USB_REG_IN_PIPE),
 				 nskb->data, MAX_REG_IN_BUF_SIZE,
-				 ath9k_hif_usb_reg_in_cb, nskb, 1);
+				 ath9k_hif_usb_reg_in_cb, rx_buf, 1);
 	}
 
 resubmit:

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Thierry Reding]

On Mon, 27 Jul 2020 16:02:55 +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.7.11 release.
> There are 179 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.11-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

All tests passing for Tegra ...

Test results for stable-v5.7:
    11 builds:	11 pass, 0 fail
    26 boots:	26 pass, 0 fail
    56 tests:	56 pass, 0 fail

Linux version:	5.7.11-rc1-g5e6331d4c49c
Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
                tegra194-p2972-0000, tegra20-ventana,
                tegra210-p2371-2180, tegra210-p3450-0000,
                tegra30-cardhu-a04

Thierry

Re: [PATCH 5.7 024/179] dm mpath: pass IO start time to path selector

[Gabriel Krisman Bertazi]

Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:

> From: Gabriel Krisman Bertazi <krisman@collabora.com>
>
> [ Upstream commit 087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b ]
>
> The HST path selector needs this information to perform path
> prediction. For request-based mpath, struct request's io_start_time_ns
> is used, while for bio-based, use the start_time stored in dm_io.

Hi Greg,

This patch is not -stable material.  It is only needed for a new feature
merged in 5.8.

Thanks,

-- 
Gabriel Krisman Bertazi

Re: [PATCH 5.7 024/179] dm mpath: pass IO start time to path selector

[Sasha Levin]

On Mon, Jul 27, 2020 at 12:35:13PM -0400, Gabriel Krisman Bertazi wrote:
>Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:
>
>> From: Gabriel Krisman Bertazi <krisman@collabora.com>
>>
>> [ Upstream commit 087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b ]
>>
>> The HST path selector needs this information to perform path
>> prediction. For request-based mpath, struct request's io_start_time_ns
>> is used, while for bio-based, use the start_time stored in dm_io.
>
>Hi Greg,
>
>This patch is not -stable material.  It is only needed for a new feature
>merged in 5.8.

I've dropped it, thank you!

-- 
Thanks,
Sasha

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Shuah Khan]

On 7/27/20 8:02 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.7.11 release.
> There are 179 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.11-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Compiled and booted on my test system. No dmesg regressions.

Tested-by: Shuah Khan <skhan@linuxfoundation.org>

thanks,
-- Shuah

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Naresh Kamboju]

On Mon, 27 Jul 2020 at 19:49, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.7.11 release.
> There are 179 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.11-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

Summary
------------------------------------------------------------------------

kernel: 5.7.11-rc1
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git branch: linux-5.7.y
git commit: 17edbab45dbfdee306397509538f3f12251f23b3
git describe: v5.7.10-180-g17edbab45dbf
Test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-5.7-oe/build/v5.7.10-180-g17edbab45dbf


No regressions (compared to build v5.7.10)

No fixes (compared to build v5.7.10)


Ran 37112 total tests in the following environments and test suites.

Environments
--------------
- dragonboard-410c
- hi6220-hikey
- i386
- juno-r2
- juno-r2-compat
- juno-r2-kasan
- nxp-ls2088
- qemu_arm
- qemu_arm64
- qemu_i386
- qemu_x86_64
- x15
- x86
- x86-kasan

Test Suites
-----------
* build
* install-android-platform-tools-r2600
* install-android-platform-tools-r2800
* kselftest
* kselftest/drivers
* kselftest/filesystems
* kselftest/net
* linux-log-parser
* ltp-commands-tests
* ltp-containers-tests
* ltp-controllers-tests
* ltp-cve-tests
* ltp-dio-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl-tests
* ltp-pty-tests
* ltp-securebits-tests
* ltp-syscalls-tests
* perf
* v4l2-compliance
* kvm-unit-tests
* libhugetlbfs
* ltp-cap_bounds-tests
* ltp-cpuhotplug-tests
* ltp-crypto-tests
* ltp-sched-tests
* ltp-open-posix-tests
* network-basic-tests
* igt-gpu-tools
* ssuite
* kselftest-vsyscall-mode-native
* kselftest-vsyscall-mode-native/drivers
* kselftest-vsyscall-mode-native/filesystems
* kselftest-vsyscall-mode-native/net
* kselftest-vsyscall-mode-none
* kselftest-vsyscall-mode-none/drivers
* kselftest-vsyscall-mode-none/filesystems
* kselftest-vsyscall-mode-none/net

-- 
Linaro LKFT
https://lkft.linaro.org

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Guenter Roeck]

On Mon, Jul 27, 2020 at 04:02:55PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.7.11 release.
> There are 179 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> Anything received after that time might be too late.
> 

Build results:
	total: 155 pass: 155 fail: 0
Qemu test results:
	total: 431 pass: 431 fail: 0

Guenter

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Greg Kroah-Hartman]

On Mon, Jul 27, 2020 at 07:31:20PM -0600, Shuah Khan wrote:
> On 7/27/20 8:02 AM, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.7.11 release.
> > There are 179 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> > 
> > Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> > Anything received after that time might be too late.
> > 
> > The whole patch series can be found in one patch at:
> > 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.11-rc1.gz
> > or in the git tree and branch at:
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y
> > and the diffstat can be found below.
> > 
> > thanks,
> > 
> > greg k-h
> > 
> 
> Compiled and booted on my test system. No dmesg regressions.
> 
> Tested-by: Shuah Khan <skhan@linuxfoundation.org>

Thanks for testing all of these and letting me know.

And I've added your tested-by: to the release commit as well, thanks for
that.

greg k-h

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Greg Kroah-Hartman]

On Tue, Jul 28, 2020 at 11:24:07AM -0700, Guenter Roeck wrote:
> On Mon, Jul 27, 2020 at 04:02:55PM +0200, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.7.11 release.
> > There are 179 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> > 
> > Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> > Anything received after that time might be too late.
> > 
> 
> Build results:
> 	total: 155 pass: 155 fail: 0
> Qemu test results:
> 	total: 431 pass: 431 fail: 0

Thanks for testing all of these and letting me know.

greg k-h

Re: [PATCH 5.7 000/179] 5.7.11-rc1 review

[Greg Kroah-Hartman]

On Mon, Jul 27, 2020 at 02:47:09PM +0000, Thierry Reding wrote:
> On Mon, 27 Jul 2020 16:02:55 +0200, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 5.7.11 release.
> > There are 179 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> > 
> > Responses should be made by Wed, 29 Jul 2020 13:48:51 +0000.
> > Anything received after that time might be too late.
> > 
> > The whole patch series can be found in one patch at:
> > 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.11-rc1.gz
> > or in the git tree and branch at:
> > 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y
> > and the diffstat can be found below.
> > 
> > thanks,
> > 
> > greg k-h
> 
> All tests passing for Tegra ...
> 
> Test results for stable-v5.7:
>     11 builds:	11 pass, 0 fail
>     26 boots:	26 pass, 0 fail
>     56 tests:	56 pass, 0 fail
> 
> Linux version:	5.7.11-rc1-g5e6331d4c49c
> Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
>                 tegra194-p2972-0000, tegra20-ventana,
>                 tegra210-p2371-2180, tegra210-p3450-0000,
>                 tegra30-cardhu-a04

Thanks for testing all of these and letting me know.

greg k-h