linux-kernel - [PATCH] dmaengine: qcom: gpi: clean up the IRQ disable/enable in gpi_reset

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Message-ID: <8be473eb-65e0-42b4-b574-e61c3a7f62d8@moroto.mountain>
Date: Thu, 9 May 2024 14:02:11 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Vinod Koul <vkoul@...nel.org>
Cc: Yangtao Li <frank.li@...o.com>, linux-arm-msm@...r.kernel.org,
	dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH] dmaengine: qcom: gpi: clean up the IRQ disable/enable in
 gpi_reset_chan()

The calls write_lock/unlock_irq() disables and re-enables the IRQs.
Calling spin_lock_irqsave() and spin_lock_restore() when the IRQs are
already disabled doesn't do anything and just makes the code confusing.

Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/dma/qcom/gpi.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/qcom/gpi.c b/drivers/dma/qcom/gpi.c
index 1c93864e0e4d..ed7918c8bda1 100644
--- a/drivers/dma/qcom/gpi.c
+++ b/drivers/dma/qcom/gpi.c
@@ -1197,7 +1197,6 @@ static int gpi_reset_chan(struct gchan *gchan, enum gpi_cmd gpi_cmd)
 {
 	struct gpii *gpii = gchan->gpii;
 	struct gpi_ring *ch_ring = &gchan->ch_ring;
-	unsigned long flags;
 	LIST_HEAD(list);
 	int ret;
 
@@ -1220,9 +1219,9 @@ static int gpi_reset_chan(struct gchan *gchan, enum gpi_cmd gpi_cmd)
 	gpi_mark_stale_events(gchan);
 
 	/* remove all async descriptors */
-	spin_lock_irqsave(&gchan->vc.lock, flags);
+	spin_lock(&gchan->vc.lock);
 	vchan_get_all_descriptors(&gchan->vc, &list);
-	spin_unlock_irqrestore(&gchan->vc.lock, flags);
+	spin_unlock(&gchan->vc.lock);
 	write_unlock_irq(&gpii->pm_lock);
 	vchan_dma_desc_free_list(&gchan->vc, &list);
 
-- 
2.43.0