From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
To: Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
Eric Auger <eric.auger@redhat.com>,
linux-arm-kernel@lists.infradead.org,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
Rikard Falkeborn <rikard.falkeborn@gmail.com>
Subject: [PATCH] iommu/arm-smmu-v3: Constify arm_smmu_mmu_notifier_ops
Date: Sat, 4 Dec 2021 23:33:01 +0100 [thread overview]
Message-ID: <20211204223301.100649-1-rikard.falkeborn@gmail.com> (raw)
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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next reply other threads:[~2021-12-04 22:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-04 22:33 Rikard Falkeborn [this message]
2021-12-10 9:54 ` [PATCH] iommu/arm-smmu-v3: Constify arm_smmu_mmu_notifier_ops Jean-Philippe Brucker
2021-12-14 15:18 ` Will Deacon
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