Commit 63f1ee20 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by John Paul Adrian Glaubitz
Browse files

locking/atomic: sh: Use generic_cmpxchg_local for arch_cmpxchg_local() 



Use __generic_cmpxchg_local() for arch_cmpxchg_local() implementation
on SH architecture because it does not implement arch_cmpxchg_local().

Reported-by: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202310241310.Ir5uukOG-lkp@intel.com/


Signed-off-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/169824660459.24340.14614817132696360531.stgit@devnote2


Signed-off-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
parent 78a96c86

arch/sh/include/asm/cmpxchg.h

+9 −0
Original line number Diff line number Diff line
@@ -71,4 +71,13 @@ static inline unsigned long __cmpxchg(volatile void * ptr, unsigned long old, 
				    (unsigned long)_n_, sizeof(*(ptr))); \

  })



#include <asm-generic/cmpxchg-local.h>



#define arch_cmpxchg_local(ptr, o, n) ({				\

	(__typeof__(*ptr))__generic_cmpxchg_local((ptr),		\

						  (unsigned long)(o),	\

						  (unsigned long)(n),	\

						  sizeof(*(ptr)));	\

})



#endif /* __ASM_SH_CMPXCHG_H */