blob: d1faad9b381e20d09d6025c673b96ba190ef302f [file] [log] [blame]
#ifndef __BACKPORT_LINUX_KCONFIG_H
#define __BACKPORT_LINUX_KCONFIG_H
#include <linux/version.h>
#if LINUX_VERSION_IS_GEQ(3,1,0)
#include_next <linux/kconfig.h>
#endif
#ifndef __ARG_PLACEHOLDER_1
#define __ARG_PLACEHOLDER_1 0,
#define config_enabled(cfg) _config_enabled(cfg)
#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)
#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)
#define ___config_enabled(__ignored, val, ...) val
/*
* 3.1 - 3.3 had a broken version of this, so undef
* (they didn't have __ARG_PLACEHOLDER_1)
*/
#undef IS_ENABLED
#define IS_ENABLED(option) \
(config_enabled(option) || config_enabled(option##_MODULE))
#endif
/*
* Since 4.9 config_enabled has been removed in favor of __is_defined.
*/
#ifndef config_enabled
#define config_enabled(cfg) __is_defined(cfg)
#endif
#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