include/linux/compiler-gcc3.h

   1 #ifndef __LINUX_COMPILER_H
   2 #error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
   3 #endif
   4
   5 /* These definitions are for GCC v3.x.  */
   6 #include <linux/compiler-gcc.h>
   7
   8 #if __GNUC_MINOR__ >= 3
   9 # define __used                 __attribute__((__used__))
  10 #else
  11 # define __used                 __attribute__((__unused__))
  12 #endif
  13
  14 #if __GNUC_MINOR__ >= 4
  15 #define __must_check            __attribute__((warn_unused_result))
  16 #endif
  17
  18 /*
  19  * A trick to suppress uninitialized variable warning without generating any
  20  * code
  21  */
  22 #define uninitialized_var(x) x = x
  23
  24 #define __always_inline         inline __attribute__((always_inline))