net-next/master boot bisection: v5.3-13186-g02dc96ef6c25 on bcm2836-rpi-2-b

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net-next/master boot bisection: v5.3-13186-g02dc96ef6c25 on bcm2836-rpi-2-b

Summary:
  Start:      02dc96ef6c25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
  Details:    https://kernelci.org/boot/id/5d905d6d59b514ae41d857e9
  Plain log:  https://storage.kernelci.org//net-next/master/v5.3-13186-g02dc96ef6c25/arm/bcm2835_defconfig/gcc-8/lab-collabora/boot-bcm2836-rpi-2-b.txt
  HTML log:   https://storage.kernelci.org//net-next/master/v5.3-13186-g02dc96ef6c25/arm/bcm2835_defconfig/gcc-8/lab-collabora/boot-bcm2836-rpi-2-b.html
  Result:     ac7c3e4ff401 compiler: enable CONFIG_OPTIMIZE_INLINING forcibly

Checks:
  revert:     PASS
  verify:     PASS

Parameters:
  Tree:       net-next
  URL:        git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
  Branch:     master
  Target:     bcm2836-rpi-2-b
  CPU arch:   arm
  Lab:        lab-collabora
  Compiler:   gcc-8
  Config:     bcm2835_defconfig
  Test suite: boot

Breaking commit found:

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commit ac7c3e4ff401b304489a031938dbeaab585bfe0a
Author: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Date:   Wed Sep 25 16:47:42 2019 -0700

    compiler: enable CONFIG_OPTIMIZE_INLINING forcibly
    
    Commit 9012d011660e ("compiler: allow all arches to enable
    CONFIG_OPTIMIZE_INLINING") allowed all architectures to enable this
    option.  A couple of build errors were reported by randconfig, but all of
    them have been ironed out.
    
    Towards the goal of removing CONFIG_OPTIMIZE_INLINING entirely (and it
    will simplify the 'inline' macro in compiler_types.h), this commit changes
    it to always-on option.  Going forward, the compiler will always be
    allowed to not inline functions marked 'inline'.
    
    This is not a problem for x86 since it has been long used by
    arch/x86/configs/{x86_64,i386}_defconfig.
    
    I am keeping the config option just in case any problem crops up for other
    architectures.
    
    The code clean-up will be done after confirming this is solid.
    
    Link: http://lkml.kernel.org/r/20190830034304.24259-1-yamada.masahiro@xxxxxxxxxxxxx
    Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
    Acked-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
    Cc: Ingo Molnar <mingo@xxxxxxxxxx>
    Cc: Borislav Petkov <bp@xxxxxxxxx>
    Cc: Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>
    Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6b1b1703a646..93d97f9b0157 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -311,7 +311,7 @@ config HEADERS_CHECK
 	  relevant for userspace, say 'Y'.
 
 config OPTIMIZE_INLINING
-	bool "Allow compiler to uninline functions marked 'inline'"
+	def_bool y
 	help
 	  This option determines if the kernel forces gcc to inline the functions
 	  developers have marked 'inline'. Doing so takes away freedom from gcc to
@@ -322,8 +322,6 @@ config OPTIMIZE_INLINING
 	  decision will become the default in the future. Until then this option
 	  is there to test gcc for this.
 
-	  If unsure, say N.
-
 config DEBUG_SECTION_MISMATCH
 	bool "Enable full Section mismatch analysis"
 	help
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Git bisection log:

-------------------------------------------------------------------------------
git bisect start
# good: [b41dae061bbd722b9d7fa828f35d22035b218e18] Merge tag 'xfs-5.4-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
git bisect good b41dae061bbd722b9d7fa828f35d22035b218e18
# bad: [02dc96ef6c25f990452c114c59d75c368a1f4c8f] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
git bisect bad 02dc96ef6c25f990452c114c59d75c368a1f4c8f
# good: [8c2b418c3f95a488f5226870eee68574d323f0f8] Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
git bisect good 8c2b418c3f95a488f5226870eee68574d323f0f8
# good: [9dbd83f665298c9dcf647f20d6d6488e9019114b] Merge tag 'rtc-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
git bisect good 9dbd83f665298c9dcf647f20d6d6488e9019114b
# bad: [cbafe18c71028d5e0ee1626b4776fea5d5824a78] Merge branch 'akpm' (patches from Andrew)
git bisect bad cbafe18c71028d5e0ee1626b4776fea5d5824a78
# good: [5184d449600f501a8688069f35c138c6b3bf8b94] Merge tag 'microblaze-v5.4-rc1' of git://git.monstr.eu/linux-2.6-microblaze
git bisect good 5184d449600f501a8688069f35c138c6b3bf8b94
# good: [351c8a09b00b5c51c8f58b016fffe51f87e2d820] Merge branch 'i2c/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
git bisect good 351c8a09b00b5c51c8f58b016fffe51f87e2d820
# good: [f41def397161053eb0d3ed6861ef65985efbf293] Merge tag 'ceph-for-5.4-rc1' of git://github.com/ceph/ceph-client
git bisect good f41def397161053eb0d3ed6861ef65985efbf293
# bad: [7d92bda271ddcbb2d1be2f82733dcb9bf8378010] kgdb: don't use a notifier to enter kgdb at panic; call directly
git bisect bad 7d92bda271ddcbb2d1be2f82733dcb9bf8378010
# good: [94fb98450456da82a16a378816390d99b85edb55] checkpatch: allow consecutive close braces
git bisect good 94fb98450456da82a16a378816390d99b85edb55
# good: [da5184c2ab10b57bf9b58f818405aa0054a2f829] fs/reiserfs/do_balan.c: remove set but not used variables
git bisect good da5184c2ab10b57bf9b58f818405aa0054a2f829
# good: [2a4a4082cd4438333b5ecffdd15d1a484e5a83c7] cpumask: nicer for_each_cpumask_and() signature
git bisect good 2a4a4082cd4438333b5ecffdd15d1a484e5a83c7
# good: [d5372c39132958679c480d0295dd328c741c7a41] kexec: restore arch_kexec_kernel_image_probe declaration
git bisect good d5372c39132958679c480d0295dd328c741c7a41
# bad: [ac7c3e4ff401b304489a031938dbeaab585bfe0a] compiler: enable CONFIG_OPTIMIZE_INLINING forcibly
git bisect bad ac7c3e4ff401b304489a031938dbeaab585bfe0a
# good: [9dd819a15162f8f82a6001b090caa38c18297b39] uaccess: add missing __must_check attributes
git bisect good 9dd819a15162f8f82a6001b090caa38c18297b39
# first bad commit: [ac7c3e4ff401b304489a031938dbeaab585bfe0a] compiler: enable CONFIG_OPTIMIZE_INLINING forcibly
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