linux-kernel - [PATCH 1/1] dmaengine: idxd: remove unused variable 'cdev

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Message-ID: <20210508063012.2624-1-thunder.leizhen@huawei.com>
Date:   Sat, 8 May 2021 14:30:12 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     Dave Jiang <dave.jiang@...el.com>, Vinod Koul <vkoul@...nel.org>,
        "Dan Williams" <dan.j.williams@...el.com>,
        dmaengine <dmaengine@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
CC:     Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH 1/1] dmaengine: idxd: remove unused variable 'cdev_ctx'

GCC reports the following warning with W=1:

drivers/dma/idxd/cdev.c:298:28: warning:
 variable 'cdev_ctx' set but not used [-Wunused-but-set-variable]
  298 |  struct idxd_cdev_context *cdev_ctx;
      |                            ^~~~~~~~

The variable 'cdev_ctx' is not used, remove it to fix the warning.

Fixes: 04922b7445a1 ("dmaengine: idxd: fix cdev setup and free device lifetime issues")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
---
 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 302cba5ff779..6c72089ca31a 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);
-- 
2.25.1