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 */
33