smp_request_block() in drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c calls
bitmap_weight() to check if any bit of a given bitmap is set. It's
better to use bitmap_empty() in that case because bitmap_empty() stops
traversing the bitmap as soon as it finds first set bit, while
bitmap_weight() counts all bits unconditionally.
Signed-off-by: Yury Norov <yury.no...@gmail.com>
---
drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c
b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c
index d7fa2c49e741..56a3063545ec 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c
@@ -68,7 +68,7 @@ static int smp_request_block(struct mdp5_smp *smp,
uint8_t reserved;
/* we shouldn't be requesting blocks for an in-use client: */
- WARN_ON(bitmap_weight(cs, cnt) > 0);
+ WARN_ON(!bitmap_empty(cs, cnt));
reserved = smp->reserved[cid];
--
2.30.2
