__must_check 15 include/linux/compiler-gcc3.h #define __must_check __attribute__((warn_unused_result)) __must_check 9 include/linux/compiler-gcc4.h #define __must_check __attribute__((warn_unused_result)) __must_check 97 include/linux/compiler.h #define __must_check __must_check 101 include/linux/compiler.h #undef __must_check __must_check 102 include/linux/compiler.h #define __must_check