[PATCH 1/2] drm/amdgpu: do not call insert_nop fn for zero count

[Sunil Khatri]

Do not make a function call for zero size NOP as it
does not add anything in the ring and is unnecessary
function call.

Signed-off-by: Sunil Khatri <sunil.khatri at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index ad49cecb20b8..0d72d2cbb64b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -145,7 +145,9 @@ void amdgpu_ring_commit(struct amdgpu_ring *ring)
 	count = ring->funcs->align_mask + 1 -
 		(ring->wptr & ring->funcs->align_mask);
 	count %= ring->funcs->align_mask + 1;
-	ring->funcs->insert_nop(ring, count);
+
+	if (count != 0)
+		ring->funcs->insert_nop(ring, count);
 
 	mb();
 	amdgpu_ring_set_wptr(ring);
-- 
2.34.1