compiler_attributes.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_COMPILER_ATTRIBUTES_H
#define __LINUX_COMPILER_ATTRIBUTES_H

/*
 *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-warn_005funused_005fresult-function-attribute
 * clang: https://clang.llvm.org/docs/AttributeReference.html#nodiscard-warn-unused-result
 */
#define __must_check                    __attribute__((__warn_unused_result__))

/*
 *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-unused-function-attribute
 *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html#index-unused-type-attribute
 *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html#index-unused-variable-attribute
 *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Label-Attributes.html#index-unused-label-attribute
 * clang: https://clang.llvm.org/docs/AttributeReference.html#maybe-unused-unused
 */
#define __always_unused                 __attribute__((__unused__))
#define __maybe_unused                  __attribute__((__unused__))

#endif /* __LINUX_COMPILER_ATTRIBUTES_H */