* [PATCH] drm/msm/dpu: remove unused variables new_cnt and old_cnt in dpu_encoder_phys_vid_vblank_irq()
@ 2020-09-16 8:51 Luo Jiaxing
0 siblings, 0 replies; only message in thread
From: Luo Jiaxing @ 2020-09-16 8:51 UTC (permalink / raw)
To: dri-devel, freedreno
Cc: robdclark, airlied, linux-arm-msm, yaohongbo, linux-kernel,
bernard, kalyan_t, ddavenport
We found two unused variables new_cnt and old_cnt when build kernel with
W=1.
So delete it.
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index b5a4905..377ce8d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -298,7 +298,6 @@ static void dpu_encoder_phys_vid_vblank_irq(void *arg, int irq_idx)
struct dpu_hw_ctl *hw_ctl;
unsigned long lock_flags;
u32 flush_register = 0;
- int new_cnt = -1, old_cnt = -1;
hw_ctl = phys_enc->hw_ctl;
@@ -308,7 +307,7 @@ static void dpu_encoder_phys_vid_vblank_irq(void *arg, int irq_idx)
phys_enc->parent_ops->handle_vblank_virt(phys_enc->parent,
phys_enc);
- old_cnt = atomic_read(&phys_enc->pending_kickoff_cnt);
+ atomic_read(&phys_enc->pending_kickoff_cnt);
/*
* only decrement the pending flush count if we've actually flushed
@@ -320,8 +319,7 @@ static void dpu_encoder_phys_vid_vblank_irq(void *arg, int irq_idx)
flush_register = hw_ctl->ops.get_flush_register(hw_ctl);
if (!(flush_register & hw_ctl->ops.get_pending_flush(hw_ctl)))
- new_cnt = atomic_add_unless(&phys_enc->pending_kickoff_cnt,
- -1, 0);
+ atomic_add_unless(&phys_enc->pending_kickoff_cnt, -1, 0);
spin_unlock_irqrestore(phys_enc->enc_spinlock, lock_flags);
/* Signal any waiting atomic commit thread */
--
2.7.4
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2020-09-16 8:51 [PATCH] drm/msm/dpu: remove unused variables new_cnt and old_cnt in dpu_encoder_phys_vid_vblank_irq() Luo Jiaxing
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