[Intel-gfx] [PATCH v3 2/7] drm/i915/guc: prefer __set/clear_bit() to bitmap_set/clear()

Dave Gordon david.s.gordon at intel.com
Mon Jun 13 16:57:29 UTC 2016


Bitmap operators are overkill when touching only one bit.

Signed-off-by: Dave Gordon <david.s.gordon at intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/i915_guc_submission.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 65e67f0..21daaa5 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -306,7 +306,7 @@ static uint16_t assign_doorbell(struct intel_guc *guc, uint32_t priority)
 	if (id == end)
 		id = GUC_INVALID_DOORBELL_ID;
 	else
-		bitmap_set(guc->doorbell_bitmap, id, 1);
+		__set_bit(id, guc->doorbell_bitmap);
 
 	DRM_DEBUG_DRIVER("assigned %s priority doorbell id 0x%x\n",
 			hi_pri ? "high" : "normal", id);
@@ -316,7 +316,7 @@ static uint16_t assign_doorbell(struct intel_guc *guc, uint32_t priority)
 
 static void release_doorbell(struct intel_guc *guc, uint16_t id)
 {
-	bitmap_clear(guc->doorbell_bitmap, id, 1);
+	__clear_bit(id, guc->doorbell_bitmap);
 }
 
 /*
-- 
1.9.1



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