diff options
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 6b19413b47a6..f88889740949 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -13,6 +13,19 @@ #define likely(x) __builtin_expect((x),1) #define unlikely(x) __builtin_expect((x),0) +/* + * Allow us to mark functions as 'deprecated' and have gcc emit a nice + * warning for each use, in hopes of speeding the functions removal. + * Usage is: + * int deprecated foo(void) + * and then gcc will emit a warning for each usage of the function. + */ +#if __GNUC__ >= 3 +#define __deprecated __attribute__((deprecated)) +#else +#define __deprecated +#endif + /* This macro obfuscates arithmetic on a variable address so that gcc shouldn't recognize the original var, and make assumptions about it */ #define RELOC_HIDE(ptr, off) \ |