From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Peter Oberparleiter <oberpar@linux.vnet.ibm.com>,
Michal Marek <mmarek@suse.com>
Subject: [PATCH 3.18 01/52] gcov: disable for COMPILE_TEST
Date: Mon, 29 Jan 2018 13:56:19 +0100 [thread overview]
Message-ID: <20180129123628.244419707@linuxfoundation.org> (raw)
In-Reply-To: <20180129123628.168904217@linuxfoundation.org>
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arnd Bergmann <arnd@arndb.de>
commit cc622420798c4bcf093785d872525087a7798db9 upstream.
Enabling gcov is counterproductive to compile testing: it significantly
increases the kernel image size, compile time, and it produces lots
of false positive "may be used uninitialized" warnings as the result
of missed optimizations.
This is in line with how UBSAN_SANITIZE_ALL and PROFILE_ALL_BRANCHES
work, both of which have similar problems.
With an ARM allmodconfig kernel, I see the build time drop from
283 minutes CPU time to 225 minutes, and the vmlinux size drops
from 43MB to 26MB.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/gcov/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -34,6 +34,7 @@ config GCOV_KERNEL
config GCOV_PROFILE_ALL
bool "Profile entire Kernel"
+ depends on !COMPILE_TEST
depends on GCOV_KERNEL
depends on SUPERH || S390 || X86 || PPC || MICROBLAZE || ARM || ARM64
default n
next prev parent reply other threads:[~2018-01-29 12:56 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-29 12:56 [PATCH 3.18 00/52] 3.18.93-stable review Greg Kroah-Hartman
2018-01-29 12:56 ` Greg Kroah-Hartman [this message]
2018-01-29 12:56 ` [PATCH 3.18 02/52] scsi: sg: disable SET_FORCE_LOW_DMA Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 03/52] futex: Prevent overflow by strengthen input validation Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 04/52] ALSA: pcm: Remove yet superfluous WARN_ON() Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 05/52] ALSA: hda - Apply the existing quirk to iMac 14,1 Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 06/52] af_key: fix buffer overread in verify_address_len() Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 07/52] af_key: fix buffer overread in parse_exthdrs() Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 08/52] pipe: avoid round_pipe_size() nr_pages overflow on 32-bit Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 09/52] Input: 88pm860x-ts - fix child-node lookup Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 10/52] Input: twl6040-vibra - fix DT node memory management Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 11/52] Input: twl6040-vibra - fix child-node lookup Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 12/52] Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 13/52] Input: twl4030-vibra - fix sibling-node lookup Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 14/52] phy: work around phys references to usb-nop-xceiv devices Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 15/52] ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7 Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 16/52] dm btree: fix serious bug in btree_split_beneath() Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 17/52] dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6 Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 18/52] arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 19/52] MIPS: AR7: ensure the port types FCR value is used Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 20/52] x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels Greg Kroah-Hartman
2018-01-29 12:56 ` Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 21/52] usbip: Fix implicit fallthrough warning Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 22/52] can: af_can: can_rcv(): replace WARN_ONCE by pr_warn_once Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 23/52] can: af_can: canfd_rcv(): " Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 24/52] mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 25/52] hwpoison, memcg: forcibly uncharge LRU pages Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 26/52] ipc: msg, make msgrcv work with LONG_MIN Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 27/52] netfilter: nf_ct_expect: remove the redundant slash when policy name is empty Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 28/52] netfilter: restart search if moved to other chain Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 29/52] netfilter: nf_conntrack_sip: extend request line validation Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 30/52] netfilter: nfnetlink_cthelper: Add missing permission checks Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 31/52] netfilter: xt_osf: " Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 32/52] reiserfs: fix race in prealloc discard Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 33/52] reiserfs: dont preallocate blocks for extended attributes Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 34/52] fs/fcntl: f_setown, avoid undefined behaviour Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 35/52] scsi: libiscsi: fix shifting of DID_REQUEUE host byte Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 36/52] um: link vmlinux with -no-pie Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 37/52] eventpoll.h: add missing epoll event masks Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 38/52] um: Stop abusing __KERNEL__ Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 39/52] um: Remove copy&paste code from init.h Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 40/52] x86/microcode/intel: Extend BDW late-loading further with LLC size check Greg Kroah-Hartman
2018-01-29 12:56 ` [PATCH 3.18 41/52] net: tcp: close sock if net namespace is exiting Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 42/52] dccp: dont restart ccid2_hc_tx_rto_expire() if sk in closed state Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 43/52] net: igmp: fix source address check for IGMPv3 reports Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 44/52] tcp: __tcp_hdrlen() helper Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 45/52] net: qdisc_pkt_len_init() should be more robust Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 46/52] pppoe: take ->needed_headroom of lower device into account on xmit Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 47/52] sctp: do not allow the v4 socket to bind a v4mapped v6 address Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 48/52] sctp: return error if the asoc has been peeled off in sctp_wait_for_sndbuf Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 49/52] vmxnet3: repair memory leak Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 50/52] net: Allow neigh contructor functions ability to modify the primary_key Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 51/52] ipv6: fix udpv6 sendmsg crash caused by too small MTU Greg Kroah-Hartman
2018-01-29 12:57 ` [PATCH 3.18 52/52] ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY Greg Kroah-Hartman
2018-01-29 23:58 ` [PATCH 3.18 00/52] 3.18.93-stable review Shuah Khan
2018-01-30 7:37 ` Greg Kroah-Hartman
2018-01-30 5:09 ` Harsh Shandilya
2018-01-30 7:38 ` Greg Kroah-Hartman
2018-01-30 14:19 ` Guenter Roeck
2018-01-30 14:51 ` Greg Kroah-Hartman
2018-01-30 18:51 ` Greg Kroah-Hartman
2018-01-30 19:48 ` Guenter Roeck
2018-01-31 8:52 ` Greg Kroah-Hartman
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