[PATCH 2/8] iommu/arm-smmu: fix the index calculation of strtab
From: Zhen Lei <hidden>
Date: 2015-06-26 08:32:58
Also in:
linux-iommu
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
The element size of cfg->strtab is just one DWORD, should use multiply operation. Signed-off-by: Zhen Lei <redacted> --- drivers/iommu/arm-smmu-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index ba7fe2d..2a5f810 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, --
1.8.0