| Michal Marek | 2a11c8e | 2011-07-20 17:38:57 +0200 | [diff] [blame] | 1 | #ifndef __LINUX_KCONFIG_H |
| 2 | #define __LINUX_KCONFIG_H |
| 3 | |
| 4 | #include <generated/autoconf.h> |
| 5 | |
| 6 | /* |
| 7 | * Helper macros to use CONFIG_ options in C expressions. Note that |
| 8 | * these only work with boolean and tristate options. |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm', |
| 13 | * 0 otherwise. |
| 14 | * |
| 15 | */ |
| 16 | #define IS_ENABLED(option) \ |
| 17 | (__enabled_ ## option || __enabled_ ## option ## _MODULE) |
| 18 | |
| 19 | /* |
| 20 | * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0 |
| 21 | * otherwise. For boolean options, this is equivalent to |
| 22 | * IS_ENABLED(CONFIG_FOO). |
| 23 | */ |
| 24 | #define IS_BUILTIN(option) __enabled_ ## option |
| 25 | |
| 26 | /* |
| 27 | * IS_MODULE(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'm', 0 |
| 28 | * otherwise. |
| 29 | */ |
| 30 | #define IS_MODULE(option) __enabled_ ## option ## _MODULE |
| 31 | |
| 32 | #endif /* __LINUX_KCONFIG_H */ |