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Groups > linux.kernel > #1508536 > unrolled thread

[PATCH 0/3] drivers: iommu: declare iommu_gather_ops structures as const

Started byBhumika Goyal <bhumirks@gmail.com>
First post2016-10-25 20:10 +0200
Last post2016-10-25 22:30 +0200
Articles 3 — 2 participants

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  [PATCH 0/3] drivers: iommu: declare iommu_gather_ops structures as const Bhumika Goyal <bhumirks@gmail.com> - 2016-10-25 20:10 +0200
    [PATCH 1/3] drivers: iommu: arm-smmu: constify iommu_gather_ops structures Bhumika Goyal <bhumirks@gmail.com> - 2016-10-25 20:10 +0200
      Re: [PATCH 1/3] drivers: iommu: arm-smmu: constify iommu_gather_ops  structures Julia Lawall <julia.lawall@lip6.fr> - 2016-10-25 22:30 +0200

#1508536 — [PATCH 0/3] drivers: iommu: declare iommu_gather_ops structures as const

FromBhumika Goyal <bhumirks@gmail.com>
Date2016-10-25 20:10 +0200
Subject[PATCH 0/3] drivers: iommu: declare iommu_gather_ops structures as const
Message-ID<swekF-GE-13@gated-at.bofh.it>
Constify iommu_gather_ops structures and replace __initdata with
__initconst where needed.

Bhumika Goyal (3):
  drivers: iommu: arm-smmu: constify iommu_gather_ops structures
  drivers: iommu: arm-smmu-v3: constify iommu_gather_ops structures
  drivers: iommu: io-pgtable-arm: use const and __initconst for
    iommu_gather_ops structures

 drivers/iommu/arm-smmu-v3.c    | 2 +-
 drivers/iommu/arm-smmu.c       | 2 +-
 drivers/iommu/io-pgtable-arm.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

-- 
1.9.1

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#1508537 — [PATCH 1/3] drivers: iommu: arm-smmu: constify iommu_gather_ops structures

FromBhumika Goyal <bhumirks@gmail.com>
Date2016-10-25 20:10 +0200
Subject[PATCH 1/3] drivers: iommu: arm-smmu: constify iommu_gather_ops structures
Message-ID<swekG-GE-47@gated-at.bofh.it>
In reply to#1508536
Check for iommu_gather_ops structures that are only stored in the tlb
field of an io_pgtable_cfg structure. The tlb field is of type
const struct iommu_gather_ops *, so iommu_gather_ops structures
having this property can be declared as const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
 drivers/iommu/arm-smmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index c841eb7..a5bc8fb 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -640,7 +640,7 @@ static void arm_smmu_tlb_inv_range_nosync(unsigned long iova, size_t size,
 	}
 }
 
-static struct iommu_gather_ops arm_smmu_gather_ops = {
+static const struct iommu_gather_ops arm_smmu_gather_ops = {
 	.tlb_flush_all	= arm_smmu_tlb_inv_context,
 	.tlb_add_flush	= arm_smmu_tlb_inv_range_nosync,
 	.tlb_sync	= arm_smmu_tlb_sync,
-- 
1.9.1

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#1508607 — Re: [PATCH 1/3] drivers: iommu: arm-smmu: constify iommu_gather_ops structures

FromJulia Lawall <julia.lawall@lip6.fr>
Date2016-10-25 22:30 +0200
SubjectRe: [PATCH 1/3] drivers: iommu: arm-smmu: constify iommu_gather_ops structures
Message-ID<swgw9-22A-11@gated-at.bofh.it>
In reply to#1508537

On Tue, 25 Oct 2016, Bhumika Goyal wrote:

> Check for iommu_gather_ops structures that are only stored in the tlb
> field of an io_pgtable_cfg structure. The tlb field is of type
> const struct iommu_gather_ops *, so iommu_gather_ops structures
> having this property can be declared as const.
>
> Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>

Acked-by: Julia Lawall <julia.lawall@lip6.fr>

> ---
>  drivers/iommu/arm-smmu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
> index c841eb7..a5bc8fb 100644
> --- a/drivers/iommu/arm-smmu.c
> +++ b/drivers/iommu/arm-smmu.c
> @@ -640,7 +640,7 @@ static void arm_smmu_tlb_inv_range_nosync(unsigned long iova, size_t size,
>  	}
>  }
>
> -static struct iommu_gather_ops arm_smmu_gather_ops = {
> +static const struct iommu_gather_ops arm_smmu_gather_ops = {
>  	.tlb_flush_all	= arm_smmu_tlb_inv_context,
>  	.tlb_add_flush	= arm_smmu_tlb_inv_range_nosync,
>  	.tlb_sync	= arm_smmu_tlb_sync,
> --
> 1.9.1
>
>

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