Needed for cpu_relax(). Signed-off-by: Will Deacon <will@xxxxxxxxxx> --- include/linux/bit_spinlock.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h index bbc4730a6505..505daa942527 100644 --- a/include/linux/bit_spinlock.h +++ b/include/linux/bit_spinlock.h @@ -6,6 +6,7 @@ #include <linux/preempt.h> #include <linux/atomic.h> #include <linux/bug.h> +#include <linux/processor.h> /* * bit-based spin_lock() -- 2.20.1
