Messages in this thread Patch in this message | | | From | Tiezhu Yang <> | Subject | [PATCH 2/2] compiler.h: Include asm/rwonce.h under ARM64 and ALPHA to fix build errors | Date | Wed, 13 Jan 2021 18:57:33 +0800 |
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When make M=samples/bpf on the Loongson 3A3000 platform which belongs to MIPS arch, there exists many similar build errors about 'asm/rwonce.h' file not found, so include it only under CONFIG_ARM64 and CONFIG_ALPHA due to it exists only in arm64 and alpha arch.
CLANG-bpf samples/bpf/xdpsock_kern.o In file included from samples/bpf/xdpsock_kern.c:2: In file included from ./include/linux/bpf.h:9: In file included from ./include/linux/workqueue.h:9: In file included from ./include/linux/timer.h:5: In file included from ./include/linux/list.h:9: In file included from ./include/linux/kernel.h:10: ./include/linux/compiler.h:246:10: fatal error: 'asm/rwonce.h' file not found ^~~~~~~~~~~~~~ 1 error generated.
$ find . -name rwonce.h ./include/asm-generic/rwonce.h ./arch/arm64/include/asm/rwonce.h ./arch/alpha/include/asm/rwonce.h
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> --- include/linux/compiler.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index b8fe0c2..bdbe759 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -243,6 +243,12 @@ static inline void *offset_to_ptr(const int *off) */ #define prevent_tail_call_optimization() mb() +#ifdef CONFIG_ARM64 #include <asm/rwonce.h> +#endif + +#ifdef CONFIG_ALPHA +#include <asm/rwonce.h> +#endif #endif /* __LINUX_COMPILER_H */ -- 2.1.0
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