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Commit 5740671e authored by Chris Wilson's avatar Chris Wilson
Browse files

dma-fence/reservation: Markup rcu protected access for DEBUG_MUTEXES 



Mark the access to reservation_object.fence as being protected to
silence sparse.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190612132830.31221-1-chris@chris-wilson.co.uk
parent c412187d

include/linux/reservation.h

+6 −2
Original line number Diff line number Diff line
@@ -216,8 +216,12 @@ reservation_object_unlock(struct reservation_object *obj) 
{

#ifdef CONFIG_DEBUG_MUTEXES

	/* Test shared fence slot reservation */

	if (obj->fence)

		obj->fence->shared_max = obj->fence->shared_count;

	if (rcu_access_pointer(obj->fence)) {

		struct reservation_object_list *fence =

			reservation_object_get_list(obj);



		fence->shared_max = fence->shared_count;

	}

#endif

	ww_mutex_unlock(&obj->lock);

}