[PATCH] crypto: ux500: Remove set but not used variable 'cookie'

* [PATCH] crypto: ux500: Remove set but not used variable 'cookie'
@ 2019-10-11 10:08 zhengbin
  2019-10-18  8:04 ` Herbert Xu
  0 siblings, 1 reply; 2+ messages in thread
From: zhengbin @ 2019-10-11 10:08 UTC (permalink / raw)
  To: herbert, davem, ndesaulniers, linux-crypto; +Cc: zhengbin13

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

drivers/crypto/ux500/hash/hash_core.c: In function hash_set_dma_transfer:
drivers/crypto/ux500/hash/hash_core.c:143:15: warning: variable cookie set but not used [-Wunused-but-set-variable]

It is not used since commit 8a63b1994c50 ("crypto:
ux500 - Add driver for HASH hardware")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
---
 drivers/crypto/ux500/hash/hash_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
index c172a69..c24f2db 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -140,7 +140,6 @@ static int hash_set_dma_transfer(struct hash_ctx *ctx, struct scatterlist *sg,
 {
 	struct dma_async_tx_descriptor *desc = NULL;
 	struct dma_chan *channel = NULL;
-	dma_cookie_t cookie;

 	if (direction != DMA_TO_DEVICE) {
 		dev_err(ctx->device->dev, "%s: Invalid DMA direction\n",
@@ -176,7 +175,7 @@ static int hash_set_dma_transfer(struct hash_ctx *ctx, struct scatterlist *sg,
 	desc->callback = hash_dma_callback;
 	desc->callback_param = ctx;

-	cookie = dmaengine_submit(desc);
+	dmaengine_submit(desc);
 	dma_async_issue_pending(channel);

 	return 0;
--
2.7.4


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