Thread (3 messages) 3 messages, 3 authors, 2021-05-10

Re: [PATCH] dmaengine: idxd: Remove redundant variable cdev_ctx

From: Dave Jiang <dave.jiang@intel.com>
Date: 2021-05-06 15:07:51
Also in: lkml

On 5/6/2021 4:00 AM, Jiapeng Chong wrote:
Variable cdev_ctx is set to '&ictx[wq->idxd->data->type]' but this
value is not used, hence it is a redundant assignment and can be
removed.

Clean up the following clang-analyzer warning:

drivers/dma/idxd/cdev.c:300:2: warning: Value stored to 'cdev_ctx' is
never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <redacted>
Signed-off-by: Jiapeng Chong <redacted>
Acked-by: Dave Jiang <dave.jiang@intel.com>

Thanks.

quoted hunk ↗ jump to hunk
---
  drivers/dma/idxd/cdev.c | 2 --
  1 file changed, 2 deletions(-)
diff --git a/drivers/dma/idxd/cdev.c b/drivers/dma/idxd/cdev.c
index 302cba5..6c72089 100644
--- a/drivers/dma/idxd/cdev.c
+++ b/drivers/dma/idxd/cdev.c
@@ -295,9 +295,7 @@ int idxd_wq_add_cdev(struct idxd_wq *wq)
  void idxd_wq_del_cdev(struct idxd_wq *wq)
  {
  	struct idxd_cdev *idxd_cdev;
-	struct idxd_cdev_context *cdev_ctx;
  
-	cdev_ctx = &ictx[wq->idxd->data->type];
  	idxd_cdev = wq->idxd_cdev;
  	wq->idxd_cdev = NULL;
  	cdev_device_del(&idxd_cdev->cdev, &idxd_cdev->dev);
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