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iommu/mediatek: Constify iommu_ops 

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 <arvind.yadav.cs@gmail.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
(Change the title to iommu/mediatek: xx)
Signed-off-by: Joerg Roedel <jroedel@suse.de>
hifive-unleashed-5.1
Arvind Yadav 2018-10-18 19:13:38 +08:00 committed by Joerg Roedel
parent 651022382c
commit b65f501627
2 changed files with 4 additions and 4 deletions
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4
drivers/iommu/mtk_iommu.c
View File

@ -113,7 +113,7 @@ struct mtk_iommu_domain {
struct iommu_domain domain;
};
static struct iommu_ops mtk_iommu_ops;
static const struct iommu_ops mtk_iommu_ops;
static LIST_HEAD(m4ulist); /* List all the M4U HWs */
@ -488,7 +488,7 @@ 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,

4
drivers/iommu/mtk_iommu_v1.c
View File

@ -362,7 +362,7 @@ 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
@ -524,7 +524,7 @@ 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,