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Message-Id: <1545555435-24576-13-git-send-email-Julia.Lawall@lip6.fr>
Date: Sun, 23 Dec 2018 09:57:07 +0100
From: Julia Lawall <Julia.Lawall@...6.fr>
To: Viresh Kumar <vireshk@...nel.org>
Cc: kernel-janitors@...r.kernel.org,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Vinod Koul <vkoul@...nel.org>,
Dan Williams <dan.j.williams@...el.com>,
dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 12/20] dmaengine: dw: drop useless LIST_HEAD
Drop LIST_HEAD where the variable it declares is never used.
Commit ab703f818ac3 ("dmaengine: dw: lazy allocation of dma
descriptors") removed the uses, but not the declaration.
The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier x;
@@
- LIST_HEAD(x);
... when != x
// </smpl>
Fixes: ab703f818ac3 ("dmaengine: dw: lazy allocation of dma descriptors")
Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
---
Successfully 0-day tested on 151 configurations.
drivers/dma/dw/core.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index dc053e62f894..290d21be4d4c 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -1150,7 +1150,6 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
struct dw_dma *dw = to_dw_dma(chan->device);
unsigned long flags;
- LIST_HEAD(list);
dev_dbg(chan2dev(chan), "%s: descs allocated=%u\n", __func__,
dwc->descs_allocated);
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