Messages in this thread | | | Date | Sat, 8 Jan 2022 22:28:13 +0800 | From | kernel test robot <> | Subject | [mingo-tip:sched/headers 631/2375] arch/powerpc/include/asm/page_32.h:48:9: error: implicit declaration of function 'WARN_ON' |
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tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers head: 351ceeab2ef96ab2fc306934ddb201b44636181b commit: a657aeec64a85023d6fe6be475a83661c6abb5b8 [631/2375] headers/deps: Add header dependencies to .h files: <linux/atomic_api.h> config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220108/202201082245.1MS3SHJh-lkp@intel.com/config) compiler: powerpc-linux-gcc (GCC) 11.2.0 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/mingo/tip.git/commit/?id=a657aeec64a85023d6fe6be475a83661c6abb5b8 git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip sched/headers git checkout a657aeec64a85023d6fe6be475a83661c6abb5b8 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc prepare
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
Note: the mingo-tip/sched/headers HEAD 351ceeab2ef96ab2fc306934ddb201b44636181b builds fine. It only hurts bisectability.
All error/warnings (new ones prefixed by >>):
In file included from arch/powerpc/include/asm/page.h:249, from arch/powerpc/include/asm/thread_info.h:13, from include/linux/thread_info.h:61, from arch/powerpc/include/asm/ptrace.h:323, from arch/powerpc/include/asm/hw_irq.h:12, from arch/powerpc/include/asm/irqflags.h:12, from include/linux/irqflags.h:16, from include/asm-generic/cmpxchg-local.h:6, from arch/powerpc/include/asm/cmpxchg.h:526, from arch/powerpc/include/asm/atomic.h:11, from include/linux/atomic.h:7, from include/linux/atomic_api.h:1, from include/linux/jump_label.h:76, from include/linux/dynamic_debug.h:6, from include/linux/printk.h:559, from include/asm-generic/bug.h:22, from arch/powerpc/include/asm/bug.h:149, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: arch/powerpc/include/asm/page_32.h: In function 'clear_page': >> arch/powerpc/include/asm/page_32.h:48:9: error: implicit declaration of function 'WARN_ON' [-Werror=implicit-function-declaration] 48 | WARN_ON((unsigned long)addr & (L1_CACHE_BYTES - 1)); | ^~~~~~~ In file included from arch/powerpc/include/asm/hw_breakpoint.h:12, from arch/powerpc/include/asm/processor.h:43, from arch/powerpc/include/asm/thread_info.h:40, from include/linux/thread_info.h:61, from arch/powerpc/include/asm/ptrace.h:323, from arch/powerpc/include/asm/hw_irq.h:12, from arch/powerpc/include/asm/irqflags.h:12, from include/linux/irqflags.h:16, from include/asm-generic/cmpxchg-local.h:6, from arch/powerpc/include/asm/cmpxchg.h:526, from arch/powerpc/include/asm/atomic.h:11, from include/linux/atomic.h:7, from include/linux/atomic_api.h:1, from include/linux/jump_label.h:76, from include/linux/dynamic_debug.h:6, from include/linux/printk.h:559, from include/asm-generic/bug.h:22, from arch/powerpc/include/asm/bug.h:149, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: arch/powerpc/include/asm/cpu_has_feature.h: At top level: >> arch/powerpc/include/asm/cpu_has_feature.h:21:31: error: array type has incomplete element type 'struct static_key_true' 21 | extern struct static_key_true cpu_feature_keys[NUM_CPU_FTR_KEYS]; | ^~~~~~~~~~~~~~~~ arch/powerpc/include/asm/cpu_has_feature.h: In function 'cpu_has_feature': >> arch/powerpc/include/asm/cpu_has_feature.h:32:14: error: 'static_key_initialized' undeclared (first use in this function) 32 | if (!static_key_initialized) { | ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/cpu_has_feature.h:32:14: note: each undeclared identifier is reported only once for each function it appears in >> arch/powerpc/include/asm/cpu_has_feature.h:46:16: error: implicit declaration of function 'static_branch_likely' [-Werror=implicit-function-declaration] 46 | return static_branch_likely(&cpu_feature_keys[i]); | ^~~~~~~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/cpu_has_feature.h:25:13: warning: variable 'i' set but not used [-Wunused-but-set-variable] 25 | int i; | ^ In file included from arch/powerpc/include/asm/ptrace.h:323, from arch/powerpc/include/asm/hw_irq.h:12, from arch/powerpc/include/asm/irqflags.h:12, from include/linux/irqflags.h:16, from include/asm-generic/cmpxchg-local.h:6, from arch/powerpc/include/asm/cmpxchg.h:526, from arch/powerpc/include/asm/atomic.h:11, from include/linux/atomic.h:7, from include/linux/atomic_api.h:1, from include/linux/jump_label.h:76, from include/linux/dynamic_debug.h:6, from include/linux/printk.h:559, from include/asm-generic/bug.h:22, from arch/powerpc/include/asm/bug.h:149, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: arch/powerpc/include/asm/thread_info.h: In function 'clear_thread_local_flags': >> include/linux/thread_info.h:26:32: error: implicit declaration of function 'task_thread_info'; did you mean 'current_thread_info'? [-Werror=implicit-function-declaration] 26 | # define current_thread_info() task_thread_info(current) | ^~~~~~~~~~~~~~~~ arch/powerpc/include/asm/thread_info.h:159:34: note: in expansion of macro 'current_thread_info' 159 | struct thread_info *ti = current_thread_info(); | ^~~~~~~~~~~~~~~~~~~ >> include/linux/thread_info.h:26:32: warning: initialization of 'struct thread_info *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 26 | # define current_thread_info() task_thread_info(current) | ^~~~~~~~~~~~~~~~ arch/powerpc/include/asm/thread_info.h:159:34: note: in expansion of macro 'current_thread_info' 159 | struct thread_info *ti = current_thread_info(); | ^~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/thread_info.h: In function 'test_thread_local_flags': >> include/linux/thread_info.h:26:32: warning: initialization of 'struct thread_info *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 26 | # define current_thread_info() task_thread_info(current) | ^~~~~~~~~~~~~~~~ arch/powerpc/include/asm/thread_info.h:165:34: note: in expansion of macro 'current_thread_info' 165 | struct thread_info *ti = current_thread_info(); | ^~~~~~~~~~~~~~~~~~~ In file included from arch/powerpc/include/asm/ptrace.h:323, from arch/powerpc/include/asm/hw_irq.h:12, from arch/powerpc/include/asm/irqflags.h:12, from include/linux/irqflags.h:16, from include/asm-generic/cmpxchg-local.h:6, from arch/powerpc/include/asm/cmpxchg.h:526, from arch/powerpc/include/asm/atomic.h:11, from include/linux/atomic.h:7, from include/linux/atomic_api.h:1, from include/linux/jump_label.h:76, from include/linux/dynamic_debug.h:6, from include/linux/printk.h:559, from include/asm-generic/bug.h:22, from arch/powerpc/include/asm/bug.h:149, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: include/linux/thread_info.h: In function 'copy_overflow': include/linux/thread_info.h:105:9: error: implicit declaration of function 'WARN' [-Werror=implicit-function-declaration] 105 | WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count); | ^~~~ include/linux/thread_info.h: In function 'check_copy_size': include/linux/thread_info.h:121:13: error: implicit declaration of function 'WARN_ON_ONCE' [-Werror=implicit-function-declaration] 121 | if (WARN_ON_ONCE(bytes > INT_MAX)) | ^~~~~~~~~~~~ cc1: some warnings being treated as errors make[2]: *** [scripts/Makefile.build:121: kernel/bounds.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1197: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:219: __sub-make] Error 2 make: Target 'prepare' not remade because of errors.
vim +/WARN_ON +48 arch/powerpc/include/asm/page_32.h
7ab0b7cb8951d4 arch/powerpc/include/asm/page_32.h Christophe Leroy 2019-08-16 38 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 39 /* 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 40 * Clear page using the dcbz instruction, which doesn't cause any 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 41 * memory traffic (except to write out any cache lines which get 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 42 * displaced). This only works on cacheable memory. 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 43 */ 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 44 static inline void clear_page(void *addr) 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 45 { 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 46 unsigned int i; 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 47 7ab0b7cb8951d4 arch/powerpc/include/asm/page_32.h Christophe Leroy 2019-08-16 @48 WARN_ON((unsigned long)addr & (L1_CACHE_BYTES - 1)); 7ab0b7cb8951d4 arch/powerpc/include/asm/page_32.h Christophe Leroy 2019-08-16 49 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 50 for (i = 0; i < PAGE_SIZE / L1_CACHE_BYTES; i++, addr += L1_CACHE_BYTES) 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 51 dcbz(addr); 5736f96d12dd42 arch/powerpc/include/asm/page_32.h Christophe Leroy 2016-02-09 52 } 5cd16ee934eafc include/asm-powerpc/page_32.h Michael Ellerman 2005-11-11 53 extern void copy_page(void *to, void *from); 5cd16ee934eafc include/asm-powerpc/page_32.h Michael Ellerman 2005-11-11 54
:::::: The code at line 48 was first introduced by commit :::::: 7ab0b7cb8951d4095d73e203759b74d41916e455 powerpc/32: Add warning on misaligned copy_page() or clear_page()
:::::: TO: Christophe Leroy <christophe.leroy@c-s.fr> :::::: CC: Michael Ellerman <mpe@ellerman.id.au>
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