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Message-ID: <202107130929.6BsYOhXr-lkp@intel.com>
Date: Tue, 13 Jul 2021 09:47:33 +0800
From: kernel test robot <lkp@...el.com>
To: Mark Rutland <mark.rutland@....com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mark-rutland:atomics/arch-atomic-bitops 3/5]
include/linux/atomic/atomic-arch-fallback.h:60:32: error: implicit
declaration of function 'arch_cmpxchg64'; did you mean 'arch_cmpxchg'?
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git atomics/arch-atomic-bitops
head: 7f1fb4dc1cb944e762214419fc8ff3baf29e24f5
commit: 9e9d9f37c6b05b8ca142be00f6ef86831b4a505d [3/5] locking/atomic: centralize generated headers
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=9e9d9f37c6b05b8ca142be00f6ef86831b4a505d
git remote add mark-rutland https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
git fetch --no-tags mark-rutland atomics/arch-atomic-bitops
git checkout 9e9d9f37c6b05b8ca142be00f6ef86831b4a505d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from include/linux/atomic.h:80,
from drivers/iommu/io-pgtable-arm.c:12:
drivers/iommu/io-pgtable-arm.c: In function 'arm_lpae_install_table':
>> include/linux/atomic/atomic-arch-fallback.h:60:32: error: implicit declaration of function 'arch_cmpxchg64'; did you mean 'arch_cmpxchg'? [-Werror=implicit-function-declaration]
60 | #define arch_cmpxchg64_relaxed arch_cmpxchg64
| ^~~~~~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:1261:2: note: in expansion of macro 'arch_cmpxchg64_relaxed'
1261 | arch_cmpxchg64_relaxed(__ai_ptr, __VA_ARGS__); \
| ^~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/io-pgtable-arm.c:320:8: note: in expansion of macro 'cmpxchg64_relaxed'
320 | old = cmpxchg64_relaxed(ptep, curr, new);
| ^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +60 include/linux/atomic/atomic-arch-fallback.h
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 56
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 57 #ifndef arch_cmpxchg64_relaxed
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 58 #define arch_cmpxchg64_acquire arch_cmpxchg64
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 59 #define arch_cmpxchg64_release arch_cmpxchg64
29f006fdefe6f8 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-08-29 @60 #define arch_cmpxchg64_relaxed arch_cmpxchg64
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 61 #else /* arch_cmpxchg64_relaxed */
37f8173dd84936 include/linux/atomic-arch-fallback.h Peter Zijlstra 2020-01-24 62
:::::: The code at line 60 was first introduced by commit
:::::: 29f006fdefe6f88abde973a0b0f20d2704e93fd4 asm-generic/atomic: Add try_cmpxchg() fallbacks
:::::: TO: Peter Zijlstra <peterz@...radead.org>
:::::: CC: Ingo Molnar <mingo@...nel.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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