#ifndef __LINUX_COMPILER_H
  #error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
  #endif

  #if __GNUC_MINOR__ < 2
  # error Sorry, your compiler is too old - please upgrade it.
  #endif

  #if __GNUC_MINOR__ >= 3

  # define __used			__attribute__((__used__))

  #else

  # define __used			__attribute__((__unused__))

  #endif

  #if __GNUC_MINOR__ >= 4
  #define __must_check		__attribute__((warn_unused_result))
  #endif

  #ifdef CONFIG_GCOV_KERNEL
  # if __GNUC_MINOR__ < 4
  #   error "GCOV profiling support for gcc versions below 3.4 not included"
  # endif /* __GNUC_MINOR__ */
  #endif /* CONFIG_GCOV_KERNEL */

  /*
   * A trick to suppress uninitialized variable warning without generating any
   * code
   */
  #define uninitialized_var(x) x = x

  #define __always_inline		inline __attribute__((always_inline))