Messages in this thread | | | Date | Sat, 31 Jul 2021 09:33:49 +0800 | From | kernel test robot <> | Subject | [tip:locking/core 19/21] include/linux/atomic/atomic-arch-fallback.h:60:32: error: implicit declaration of function 'arch_cmpxchg64'; did you mean 'arch_cmpxchg'? |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core head: cf3ee3c8c29dc349b2cf52e5e72e8cb805ff5e57 commit: e3d18cee258b898017b298b5b93f8134dd62aee3 [19/21] locking/atomic: centralize generated headers config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 10.3.0 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/tip/tip.git/commit/?id=e3d18cee258b898017b298b5b93f8134dd62aee3 git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch --no-tags tip locking/core git checkout e3d18cee258b898017b298b5b93f8134dd62aee3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.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@infradead.org> :::::: CC: Ingo Molnar <mingo@kernel.org>
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