This was introduced in commit 9b174527e and is used by the media drivers. Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx> --- backport/backport-include/linux/kconfig.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/backport/backport-include/linux/kconfig.h b/backport/backport-include/linux/kconfig.h index ee938e3..4fe2a10 100644 --- a/backport/backport-include/linux/kconfig.h +++ b/backport/backport-include/linux/kconfig.h @@ -24,4 +24,15 @@ #undef IS_BUILTIN #define IS_BUILTIN(option) config_enabled(option) +#ifndef IS_REACHABLE +/* + * IS_REACHABLE(CONFIG_FOO) evaluates to 1 if the currently compiled + * code can call a function defined in code compiled based on CONFIG_FOO. + * This is similar to IS_ENABLED(), but returns false when invoked from + * built-in code when CONFIG_FOO is set to 'm'. + */ +#define IS_REACHABLE(option) (config_enabled(option) || \ + (config_enabled(option##_MODULE) && config_enabled(MODULE))) +#endif + #endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe backports" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
