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Subjectclk/clk-next boot bisection: v5.4-rc1 on bcm2837-rpi-3-b-32
From
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* This automated bisection report was sent to you on the basis *
* that you may be involved with the breaking commit it has *
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* and the root cause of the problem may be somewhere else. *
* *
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* Reported-by: "kernelci.org bot" <bot@kernelci.org> *
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clk/clk-next boot bisection: v5.4-rc1 on bcm2837-rpi-3-b-32

Summary:
Start: 54ecb8f7028c Linux 5.4-rc1
Details: https://kernelci.org/boot/id/5d92746459b514e473d857e7
Plain log: https://storage.kernelci.org//clk/clk-next/v5.4-rc1/arm/bcm2835_defconfig/gcc-8/lab-baylibre/boot-bcm2837-rpi-3-b.txt
HTML log: https://storage.kernelci.org//clk/clk-next/v5.4-rc1/arm/bcm2835_defconfig/gcc-8/lab-baylibre/boot-bcm2837-rpi-3-b.html
Result: ac7c3e4ff401 compiler: enable CONFIG_OPTIMIZE_INLINING forcibly

Checks:
revert: PASS
verify: PASS

Parameters:
Tree: clk
URL: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git
Branch: clk-next
Target: bcm2837-rpi-3-b-32
CPU arch: arm
Lab: lab-baylibre
Compiler: gcc-8
Config: bcm2835_defconfig
Test suite: boot

Breaking commit found:

-------------------------------------------------------------------------------
commit ac7c3e4ff401b304489a031938dbeaab585bfe0a
Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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

Git bisection log:

-------------------------------------------------------------------------------
git bisect start
# good: [ebd47c8434064687ab6641e837144e0a3ea3872d] Merge branches 'clk-bulk-fix', 'clk-at91' and 'clk-sprd' into clk-next
git bisect good ebd47c8434064687ab6641e837144e0a3ea3872d
# bad: [54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c] Linux 5.4-rc1
git bisect bad 54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c
# good: [8b53c76533aa4356602aea98f98a2f3b4051464c] Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
git bisect good 8b53c76533aa4356602aea98f98a2f3b4051464c
# good: [574cc4539762561d96b456dbc0544d8898bd4c6e] Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm
git bisect good 574cc4539762561d96b456dbc0544d8898bd4c6e
# good: [7e2f2a0cd17cfc42acb4b6a293d5cb6c7eda9862] mm, page_owner: record page owner for each subpage
git bisect good 7e2f2a0cd17cfc42acb4b6a293d5cb6c7eda9862
# bad: [972a2bf7dfe39ebf49dd47f68d27c416392e53b1] Merge tag 'nfs-for-5.4-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
git bisect bad 972a2bf7dfe39ebf49dd47f68d27c416392e53b1
# good: [9c9fa97a8edbc3668dfc7a25de516e80c146e86f] Merge branch 'akpm' (patches from Andrew)
git bisect good 9c9fa97a8edbc3668dfc7a25de516e80c146e86f
# bad: [a22fea94992a2bc5328005e62f368413ede49c14] arch/sparc/include/asm/pgtable_64.h: fix build
git bisect bad a22fea94992a2bc5328005e62f368413ede49c14
# good: [351c8a09b00b5c51c8f58b016fffe51f87e2d820] Merge branch 'i2c/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
git bisect good 351c8a09b00b5c51c8f58b016fffe51f87e2d820
# bad: [ac7c3e4ff401b304489a031938dbeaab585bfe0a] compiler: enable CONFIG_OPTIMIZE_INLINING forcibly
git bisect bad ac7c3e4ff401b304489a031938dbeaab585bfe0a
# good: [94fb98450456da82a16a378816390d99b85edb55] checkpatch: allow consecutive close braces
git bisect good 94fb98450456da82a16a378816390d99b85edb55
# good: [4fadcd1c14d810ec6a695039cfc71e03ae742deb] fs/reiserfs/fix_node.c: remove set but not used variables
git bisect good 4fadcd1c14d810ec6a695039cfc71e03ae742deb
# good: [8495f7e6732ed248b648d36439795b42ec650b9e] fork: improve error message for corrupted page tables
git bisect good 8495f7e6732ed248b648d36439795b42ec650b9e
# good: [7c3a6aedcd6aae0a32a527e68669f7dd667492d1] kexec: bail out upon SIGKILL when allocating memory.
git bisect good 7c3a6aedcd6aae0a32a527e68669f7dd667492d1
# 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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