csky: cmpxchg: Coding convention for BUILD_BUG()

Use BUILD_BUG() instead of the custom bad_xchg.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>

diff --git a/arch/csky/include/asm/cmpxchg.h b/arch/csky/include/asm/cmpxchg.h
index 5f693fadb56c9dc7651882288a0ad0aa687e284f..916043b845f14248467d276db216d8e29a41e01d 100644 (file)
--- 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;                                                  \
 })