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Subject[PATCH] iommu/arm-smmu-v3: Constify arm_smmu_mmu_notifier_ops
Date
The only usage of arm_smmu_mmu_notifier_ops is to assign its address to
the ops field in the mmu_notifier struct, which is a pointer to const
struct mmu_notifier_ops. Make it const to allow the compiler to put it
in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
index ee66d1f4cb81..a737ba5f727e 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
@@ -220,7 +220,7 @@ static void arm_smmu_mmu_notifier_free(struct mmu_notifier *mn)
kfree(mn_to_smmu(mn));
}

-static struct mmu_notifier_ops arm_smmu_mmu_notifier_ops = {
+static const struct mmu_notifier_ops arm_smmu_mmu_notifier_ops = {
.invalidate_range = arm_smmu_mm_invalidate_range,
.release = arm_smmu_mm_release,
.free_notifier = arm_smmu_mmu_notifier_free,
--
2.34.1
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