Messages in this thread | | | Date | Thu, 16 Mar 2017 13:47:04 +0900 | From | Sergey Senozhatsky <> | Subject | [mmotm] "x86/atomic: move __arch_atomic_add_unless out of line" build error |
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Hello,
commit 4f86a82ff7df ("x86/atomic: move __arch_atomic_add_unless out of line") moved __arch_atomic_add_unless() out atomic.h and new KASAN atomic instrumentation [1] can't see it anymore
In file included from ./arch/x86/include/asm/atomic.h:257:0, from ./include/linux/atomic.h:4, from ./include/asm-generic/qspinlock_types.h:28, from ./arch/x86/include/asm/spinlock_types.h:26, from ./include/linux/spinlock_types.h:13, from kernel/bounds.c:13: ./include/asm-generic/atomic-instrumented.h: In function ‘__atomic_add_unless’: ./include/asm-generic/atomic-instrumented.h:70:9: error: implicit declaration of function ‘__arch_atomic_add_unless’ [-Werror=implicit-function-declaration] return __arch_atomic_add_unless(v, a, u); ^~~~~~~~~~~~~~~~~~~~~~~~
so we need a declaration of __arch_atomic_add_unless() in arch/x86/include/asm/atomic.h
[1] lkml.kernel.org/r/7e450175a324bf93c602909c711bc34715d8e8f2.1489519233.git.dvyukov@google.com
-ss
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