* RE: [PATCH 2/3] iommu: mtk: constify iommu_ops
[not found] ` <d7decc0805d04c148bb2cbda8b70b767-1/hHtGjKHHyGRgb7Xm6L22/AB3i2Q03W@public.gmane.org>
@ 2018-09-10 2:35 ` Yong Wu
0 siblings, 0 replies; 2+ messages in thread
From: Yong Wu @ 2018-09-10 2:35 UTC (permalink / raw)
To: Arvind Yadav
Cc: matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA
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-bounces@lists.infradead.org] On Behalf Of Arvind Yadav
> Sent: Monday, August 28, 2017 8:12 PM
> To: m.szyprowski@samsung.com; joro@8bytes.org; kgene@kernel.org; krzk@kernel.org; matthias.bgg@gmail.com; gerald.schaefer@de.ibm.com
> Cc: iommu@lists.linux-foundation.org; linux-mediatek@lists.infradead.org; linux-kernel@vger.kernel.org; linux-arm-kernel@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.cs@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
>
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply [flat|nested] 2+ messages in thread