From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Use BUILD_BUG() instead of the custom bad_xchg. Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Signed-off-by: Guo Ren <guoren@xxxxxxxxxx> --- arch/csky/include/asm/cmpxchg.h | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/arch/csky/include/asm/cmpxchg.h b/arch/csky/include/asm/cmpxchg.h index 5f693fadb56c..916043b845f1 100644 --- a/arch/csky/include/asm/cmpxchg.h +++ b/arch/csky/include/asm/cmpxchg.h @@ -4,10 +4,9 @@ #define __ASM_CSKY_CMPXCHG_H #ifdef CONFIG_SMP +#include <linux/bug.h> #include <asm/barrier.h> -extern void __bad_xchg(void); - #define __xchg_relaxed(new, ptr, size) \ ({ \ __typeof__(ptr) __ptr = (ptr); \ @@ -46,7 +45,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) @@ -76,7 +75,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) @@ -107,7 +106,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) @@ -139,7 +138,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) -- 2.36.1