diff options
| author | Zhen Lei <thunder.leizhen@huawei.com> | 2015-06-26 11:32:58 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-07-08 19:24:38 +0300 |
| commit | 69146e7bfc38139a134c79a4ee6607c881891786 (patch) | |
| tree | 23c2479941f187e1ab2e7d8915c09ad517bcbc04 /drivers/iommu | |
| parent | d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff) | |
| download | linux-69146e7bfc38139a134c79a4ee6607c881891786.tar.xz | |
iommu/arm-smmu: Fix the index calculation of strtab
The element size of cfg->strtab is just one DWORD, so we should use a
multiply operation instead of a shift when calculating the level 1
index.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 8e9ec81ce4bb..606852f18808 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1064,7 +1064,7 @@ static int arm_smmu_init_l2_strtab(struct arm_smmu_device *smmu, u32 sid) return 0; size = 1 << (STRTAB_SPLIT + ilog2(STRTAB_STE_DWORDS) + 3); - strtab = &cfg->strtab[sid >> STRTAB_SPLIT << STRTAB_L1_DESC_DWORDS]; + strtab = &cfg->strtab[(sid >> STRTAB_SPLIT) * STRTAB_L1_DESC_DWORDS]; desc->span = STRTAB_SPLIT + 1; desc->l2ptr = dma_zalloc_coherent(smmu->dev, size, &desc->l2ptr_dma, |