Hi Arvind,
This patch looks lost. Could you help resend it after changing the
title to "iommu/mediatek:xxx"?
Thanks.
On Fri, 2018-09-07 at 14:21 +0800, Yong Wu (吴勇) wrote:
> From: Linux-mediatek [mailto:linux-mediatek-boun...@lists.infradead.org] On
> Behalf Of Arvind Yadav
> Sent: Monday, August 28, 2017 8:12 PM
> To: m.szyprow...@samsung.com; j...@8bytes.org; kg...@kernel.org;
> k...@kernel.org; matthias....@gmail.com; gerald.schae...@de.ibm.com
> Cc: iommu@lists.linux-foundation.org; linux-media...@lists.infradead.org;
> linux-ker...@vger.kernel.org; linux-arm-ker...@lists.infradead.org
> Subject: [PATCH 2/3] iommu: mtk: 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...@gmail.com>
> ---
> 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
>
>
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