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 # define __attribute_used__     __used                          /* deprecated */
  11 #else
  12 # define __used                 __attribute__((__unused__))
  13 # define __attribute_used__     __used                          /* deprecated */
  14 #endif
  15
  16 #if __GNUC_MINOR__ >= 4
  17 #define __must_check            __attribute__((warn_unused_result))
  18 #endif
  19
  20 /*
  21  * A trick to suppress uninitialized variable warning without generating any
  22  * code
  23  */
  24 #define uninitialized_var(x) x = x
  25
  26 #define __always_inline         inline __attribute__((always_inline))