kernel.h is not needed, but compiler.h is. mutex.h is not needed only a forward declaration.
spinlock.h is not needed, spinlock_types.h is enough. Signed-off-by: Alexey Dobriyan <[email protected]> --- include/linux/refcount.h | 7 ++++--- lib/refcount.c | 2 ++ 2 files changed, 6 insertions(+), 3 deletions(-) --- a/include/linux/refcount.h +++ b/include/linux/refcount.h @@ -3,9 +3,10 @@ #define _LINUX_REFCOUNT_H #include <linux/atomic.h> -#include <linux/mutex.h> -#include <linux/spinlock.h> -#include <linux/kernel.h> +#include <linux/compiler.h> +#include <linux/spinlock_types.h> + +struct mutex; /** * struct refcount_t - variant of atomic_t specialized for reference counts --- a/lib/refcount.c +++ b/lib/refcount.c @@ -35,7 +35,9 @@ * */ +#include <linux/mutex.h> #include <linux/refcount.h> +#include <linux/spinlock.h> #include <linux/bug.h> #ifdef CONFIG_REFCOUNT_FULL
