Re: [PATCH -next] dmaengine: idxd: remove set but not used variable 'group'

From: Dave Jiang
Date: Tue Feb 11 2020 - 11:14:13 EST




On 2/11/20 6:53 AM, YueHaibing wrote:
drivers/dma/idxd/sysfs.c: In function engine_group_id_store:
drivers/dma/idxd/sysfs.c:419:29: warning: variable group set but not used [-Wunused-but-set-variable]

It is not used, so remove it.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>

Acked-by: Dave Jiang <dave.jiang@xxxxxxxxx>

---
drivers/dma/idxd/sysfs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index 6d907fe..e4f35bd 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -416,7 +416,7 @@ static ssize_t engine_group_id_store(struct device *dev,
struct idxd_device *idxd = engine->idxd;
long id;
int rc;
- struct idxd_group *prevg, *group;
+ struct idxd_group *prevg;
rc = kstrtol(buf, 10, &id);
if (rc < 0)
@@ -436,7 +436,6 @@ static ssize_t engine_group_id_store(struct device *dev,
return count;
}
- group = &idxd->groups[id];
prevg = engine->group;
if (prevg)