| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* Never include this file directly. Include <linux/compiler.h> instead. */ |
| 2 | |
| 3 | /* These definitions are for GCC v3.x. */ |
| 4 | #include <linux/compiler-gcc.h> |
| 5 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | #if __GNUC_MINOR__ >= 3 |
| David Rientjes | 0d7ebbb | 2007-05-09 02:35:27 -0700 | [diff] [blame] | 7 | # define __used __attribute__((__used__)) |
| 8 | # define __attribute_used__ __used /* deprecated */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #else |
| David Rientjes | 0d7ebbb | 2007-05-09 02:35:27 -0700 | [diff] [blame] | 10 | # define __used __attribute__((__unused__)) |
| 11 | # define __attribute_used__ __used /* deprecated */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #endif |
| 13 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #if __GNUC_MINOR__ >= 4 |
| 15 | #define __must_check __attribute__((warn_unused_result)) |
| 16 | #endif |
| 17 | |
| Borislav Petkov | 9490991 | 2007-05-06 14:49:17 -0700 | [diff] [blame] | 18 | /* |
| 19 | * A trick to suppress uninitialized variable warning without generating any |
| 20 | * code |
| 21 | */ |
| 22 | #define uninitialized_var(x) x = x |
| 23 | |
| Ingo Molnar | 40fc55c | 2006-01-14 13:21:28 -0800 | [diff] [blame] | 24 | #define __always_inline inline __attribute__((always_inline)) |