[PATCH -next] iommu/arm-smmu-v3: remove set but not used variable 'smmu'

[PATCH -next] iommu/arm-smmu-v3: remove set but not used variable 'smmu'

[Chen Zhou]

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

drivers/iommu/arm-smmu-v3.c:2989:26:
warning: variable ‘smmu’ set but not used [-Wunused-but-set-variable]
  struct arm_smmu_device *smmu;

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
---
 drivers/iommu/arm-smmu-v3.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 42e1ee7e5197..89ee9c5d8b88 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2986,13 +2986,11 @@ static void arm_smmu_release_device(struct device *dev)
 {
 	struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
 	struct arm_smmu_master *master;
-	struct arm_smmu_device *smmu;
 
 	if (!fwspec || fwspec->ops != &arm_smmu_ops)
 		return;
 
 	master = dev_iommu_priv_get(dev);
-	smmu = master->smmu;
 	arm_smmu_detach_dev(master);
 	arm_smmu_disable_pasid(master);
 	kfree(master);
-- 
2.20.1

Re: [PATCH -next] iommu/arm-smmu-v3: remove set but not used variable 'smmu'

[Will Deacon]

On Fri, 8 May 2020 09:49:55 +0800, Chen Zhou wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
> 
> drivers/iommu/arm-smmu-v3.c:2989:26:
> warning: variable ‘smmu’ set but not used [-Wunused-but-set-variable]
>   struct arm_smmu_device *smmu;

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu-v3: remove set but not used variable 'smmu'
      https://git.kernel.org/will/c/06020196c82e

Cheers,
-- 
Will

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