[PATCH 2/3] iommu: mtk: constify iommu_ops
From: Arvind Yadav <hidden>
Date: 2017-08-28 12:12:53
Also in:
linux-iommu, linux-mediatek, lkml
Subsystem:
iommu subsystem, mediatek iommu driver, the rest · Maintainers:
Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds
iommu_ops are not supposed to change at runtime. Functions 'iommu_device_set_ops' and 'bus_set_iommu' working with const iommu_ops provided by <linux/iommu.h>. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <redacted> --- drivers/iommu/mtk_iommu.c | 4 ++-- drivers/iommu/mtk_iommu_v1.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 91c6d36..eac99a3 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c@@ -102,7 +102,7 @@ struct mtk_iommu_domain { struct iommu_domain domain; }; -static struct iommu_ops mtk_iommu_ops; +static const struct iommu_ops mtk_iommu_ops; static struct mtk_iommu_domain *to_mtk_domain(struct iommu_domain *dom) {
@@ -437,7 +437,7 @@ static int mtk_iommu_of_xlate(struct device *dev, struct of_phandle_args *args) return iommu_fwspec_add_ids(dev, args->args, 1); } -static struct iommu_ops mtk_iommu_ops = { +static const struct iommu_ops mtk_iommu_ops = { .domain_alloc = mtk_iommu_domain_alloc, .domain_free = mtk_iommu_domain_free, .attach_dev = mtk_iommu_attach_device,
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index bc1efbf..40b231f 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c@@ -363,7 +363,7 @@ static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain, return pa; } -static struct iommu_ops mtk_iommu_ops; +static const struct iommu_ops mtk_iommu_ops; /* * MTK generation one iommu HW only support one iommu domain, and all the client
@@ -536,7 +536,7 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data) return 0; } -static struct iommu_ops mtk_iommu_ops = { +static const struct iommu_ops mtk_iommu_ops = { .domain_alloc = mtk_iommu_domain_alloc, .domain_free = mtk_iommu_domain_free, .attach_dev = mtk_iommu_attach_device,
--
1.9.1