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  • * [PATCH 2/3] iommu: mtk: constify iommu_ops
    @ 2017-08-28 12:12 ` Arvind Yadav
      0 siblings, 0 replies; 7+ messages in thread
    From: Arvind Yadav @ 2017-08-28 12:12 UTC (permalink / raw)
      To: m.szyprowski, joro, kgene, krzk, matthias.bgg, gerald.schaefer
      Cc: linux-kernel, iommu, linux-arm-kernel, linux-mediatek
    
    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
    
    ^ permalink raw reply related	[flat|nested] 7+ messages in thread

    end of thread, other threads:[~2018-09-10  2:35 UTC | newest]
    
    Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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         [not found] ` <80e3d51296564c929a039ac83d83dd94-fSWMoTp6f3O9JaaB6nfwCW/AB3i2Q03W@public.gmane.org>
    2017-08-29  5:43   ` FW: [PATCH 2/3] iommu: mtk: constify iommu_ops Yong Wu
         [not found] ` <d7decc0805d04c148bb2cbda8b70b767@MTKMBS31N1.mediatek.inc>
         [not found]   ` <d7decc0805d04c148bb2cbda8b70b767-1/hHtGjKHHyGRgb7Xm6L22/AB3i2Q03W@public.gmane.org>
    2018-09-10  2:35     ` Yong Wu
    2017-08-28 12:12 Arvind Yadav
    2017-08-28 12:12 ` Arvind Yadav
    2017-08-30 13:18 ` Joerg Roedel
    2017-08-30 13:18   ` Joerg Roedel
    2017-08-30 13:18   ` Joerg Roedel
    

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