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dmaengine: fsl-edma: remove redundant assignment to pointer last_sg

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The pointer last_sg is being assigned a value at the start of a loop
however it is never read and is being re-assigned later on in both
brances of an if-statement. The assignment is redundant and can be
removed.

Cleans up clang scan-build warning:
drivers/dma/fsl-edma-common.c:563:3: warning: Value stored to 'last_sg'
is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220614184759.164379-1-colin.i.king@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Colin Ian King 2022-06-14 19:47:59 +01:00 committed by Vinod Koul
parent 8d8bbefa6a
commit 9bef4929fa
1 changed files with 0 additions and 3 deletions
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3
drivers/dma/fsl-edma-common.c
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@ -559,9 +559,6 @@ struct dma_async_tx_descriptor *fsl_edma_prep_slave_sg(
} }
for_each_sg(sgl, sg, sg_len, i) { for_each_sg(sgl, sg, sg_len, i) {
/* get next sg's physical address */
last_sg = fsl_desc->tcd[(i + 1) % sg_len].ptcd;
if (direction == DMA_MEM_TO_DEV) { if (direction == DMA_MEM_TO_DEV) {
src_addr = sg_dma_address(sg); src_addr = sg_dma_address(sg);
dst_addr = fsl_chan->dma_dev_addr; dst_addr = fsl_chan->dma_dev_addr;