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dmaengine: xilinx_dma: remove set but not used variable 'tail_segment'

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Fixes gcc '-Wunused-but-set-variable' warning:

drivers/dma/xilinx/xilinx_dma.c: In function 'xilinx_vdma_start_transfer':
drivers/dma/xilinx/xilinx_dma.c:1104:33: warning:
 variable 'tail_segment' set but not used [-Wunused-but-set-variable]

It not used since commit b8349172b4 ("dmaengine: xilinx_dma: Drop SG support
for VDMA IP")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
YueHaibing 2019-01-09 12:10:37 +00:00 committed by Vinod Koul
parent b8349172b4
commit c2be36ac21
1 changed files with 0 additions and 4 deletions
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4
drivers/dma/xilinx/xilinx_dma.c
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@ -1101,7 +1101,6 @@ static void xilinx_vdma_start_transfer(struct xilinx_dma_chan *chan)
struct xilinx_vdma_config *config = &chan->config;
struct xilinx_dma_tx_descriptor *desc, *tail_desc;
u32 reg, j;
struct xilinx_vdma_tx_segment *tail_segment;
struct xilinx_vdma_tx_segment *segment, *last = NULL;
int i = 0;
@ -1120,9 +1119,6 @@ static void xilinx_vdma_start_transfer(struct xilinx_dma_chan *chan)
tail_desc = list_last_entry(&chan->pending_list,
struct xilinx_dma_tx_descriptor, node);
tail_segment = list_last_entry(&tail_desc->segments,
struct xilinx_vdma_tx_segment, node);
/* Configure the hardware using info in the config structure */
if (chan->has_vflip) {
reg = dma_read(chan, XILINX_VDMA_REG_ENABLE_VERTICAL_FLIP);