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These headers follow the pattern: | #if CONFIG_IS_ENABLED(FANCY_FEATURE) | void foo(void); | #else | static inline void foo(void) { return -ENOSYS; } | #endif In the #else path ENOSYS is used, however linux/errno.h is not included. If errno.h has not been included already the compiler errors out even if the inline function is not referenced. Make those headers self contained. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com> Reviewed-by: Tom Rini <trini@konsulko.com>
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