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iommu/sun50i: Fix set-but-not-used variable warning 

Fix the following warning the the SUN50I driver:

   drivers/iommu/sun50i-iommu.c: In function 'sun50i_iommu_irq':
   drivers/iommu/sun50i-iommu.c:890:14: warning: variable 'iova' set but not used [-Wunused-but-set-variable]
     890 |  phys_addr_t iova;
         |              ^~~~

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200904113906.3906-1-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2020-09-04 13:39:06 +02:00
parent f75aef392f
commit 03c7b78b0b
1 changed files with 7 additions and 8 deletions
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15
drivers/iommu/sun50i-iommu.c
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@ -881,7 +881,6 @@ static phys_addr_t sun50i_iommu_handle_perm_irq(struct sun50i_iommu *iommu)
static irqreturn_t sun50i_iommu_irq(int irq, void *dev_id)
{
struct sun50i_iommu *iommu = dev_id;
phys_addr_t iova;
u32 status;
spin_lock(&iommu->iommu_lock);
@ -893,15 +892,15 @@ static irqreturn_t sun50i_iommu_irq(int irq, void *dev_id)
}
if (status & IOMMU_INT_INVALID_L2PG)
iova = sun50i_iommu_handle_pt_irq(iommu,
IOMMU_INT_ERR_ADDR_L2_REG,
IOMMU_L2PG_INT_REG);
sun50i_iommu_handle_pt_irq(iommu,
IOMMU_INT_ERR_ADDR_L2_REG,
IOMMU_L2PG_INT_REG);
else if (status & IOMMU_INT_INVALID_L1PG)
iova = sun50i_iommu_handle_pt_irq(iommu,
IOMMU_INT_ERR_ADDR_L1_REG,
IOMMU_L1PG_INT_REG);
sun50i_iommu_handle_pt_irq(iommu,
IOMMU_INT_ERR_ADDR_L1_REG,
IOMMU_L1PG_INT_REG);
else
iova = sun50i_iommu_handle_perm_irq(iommu);
sun50i_iommu_handle_perm_irq(iommu);
iommu_write(iommu, IOMMU_INT_CLR_REG, status);