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Message-ID: <6b5b4f25-0f42-4f83-b6b5-82c1adbefe83@arm.com>
Date: Mon, 4 Nov 2024 10:32:10 +0000
From: Robin Murphy <robin.murphy@....com>
To: Uwe Kleine-König <u.kleine-koenig@...libre.com>,
Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>
Cc: Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>,
Alyssa Rosenzweig <alyssa@...enzweig.io>, Rob Clark <robdclark@...il.com>,
Yong Wu <yong.wu@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Tomasz Jeznach <tjeznach@...osinc.com>,
Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
<palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
Orson Zhai <orsonzhai@...il.com>, Baolin Wang
<baolin.wang@...ux.alibaba.com>, Chunyan Zhang <zhang.lyra@...il.com>,
Jason Gunthorpe <jgg@...pe.ca>, Nicolin Chen <nicolinc@...dia.com>,
Michael Shavit <mshavit@...gle.com>, Mostafa Saleh <smostafa@...gle.com>,
Lu Baolu <baolu.lu@...ux.intel.com>,
Georgi Djakov <quic_c_gdjako@...cinc.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, asahi@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-mediatek@...ts.infradead.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH] iommu: Switch back to struct platform_driver::remove()
On 2024-11-04 6:46 am, Uwe Kleine-König wrote:
> After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
> return void") .remove() is (again) the right callback to implement for
> platform drivers.
>
> Convert all platform drivers below drivers/iommu to use .remove(), with
> the eventual goal to drop struct platform_driver::remove_new(). As
> .remove() and .remove_new() have the same prototypes, conversion is done
> by just changing the structure member name in the driver initializer.
I dont see any major concern with doing it this way. FWIW,
Acked-by: Robin Murphy <robin.murphy@....com>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...libre.com>
> ---
> Hello,
>
> I did a single patch for all of drivers/iommu. While I usually prefer to
> do one logical change per patch, this seems to be overengineering here
> as the individual changes are really trivial and shouldn't be much in
> the way for stable backports. But I'll happily split the patch if you
> prefer it split.
>
> This is based on today's next, if conflicts arise when you apply it at
> some later time and don't want to resolve them, feel free to just drop
> the changes to the conflicting files. I'll notice and followup at a
> later time then. Or ask me for a fixed resend. (Having said that, I
> recommend b4 am -3 + git am -3 which should resolve most conflicts just
> fine.)
>
> Best regards
> Uwe
>
> drivers/iommu/apple-dart.c | 2 +-
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +-
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 2 +-
> drivers/iommu/arm/arm-smmu/qcom_iommu.c | 4 ++--
> drivers/iommu/ipmmu-vmsa.c | 2 +-
> drivers/iommu/msm_iommu.c | 2 +-
> drivers/iommu/mtk_iommu.c | 2 +-
> drivers/iommu/mtk_iommu_v1.c | 2 +-
> drivers/iommu/omap-iommu.c | 2 +-
> drivers/iommu/riscv/iommu-platform.c | 2 +-
> drivers/iommu/sprd-iommu.c | 2 +-
> 11 files changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
> index eb1e62cd499a..c5bde50d1c42 100644
> --- a/drivers/iommu/apple-dart.c
> +++ b/drivers/iommu/apple-dart.c
> @@ -1352,7 +1352,7 @@ static struct platform_driver apple_dart_driver = {
> .pm = pm_sleep_ptr(&apple_dart_pm_ops),
> },
> .probe = apple_dart_probe,
> - .remove_new = apple_dart_remove,
> + .remove = apple_dart_remove,
> };
>
> module_platform_driver(apple_dart_driver);
> diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
> index 826db8894fb7..efbc78bffd33 100644
> --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
> +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
> @@ -4679,7 +4679,7 @@ static struct platform_driver arm_smmu_driver = {
> .suppress_bind_attrs = true,
> },
> .probe = arm_smmu_device_probe,
> - .remove_new = arm_smmu_device_remove,
> + .remove = arm_smmu_device_remove,
> .shutdown = arm_smmu_device_shutdown,
> };
> module_driver(arm_smmu_driver, platform_driver_register,
> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
> index 8321962b3714..4e9bb9f4c4bd 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
> @@ -2372,7 +2372,7 @@ static struct platform_driver arm_smmu_driver = {
> .suppress_bind_attrs = true,
> },
> .probe = arm_smmu_device_probe,
> - .remove_new = arm_smmu_device_remove,
> + .remove = arm_smmu_device_remove,
> .shutdown = arm_smmu_device_shutdown,
> };
> module_platform_driver(arm_smmu_driver);
> diff --git a/drivers/iommu/arm/arm-smmu/qcom_iommu.c b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
> index b98a7a598b89..9ce2fe50b22c 100644
> --- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c
> +++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
> @@ -759,7 +759,7 @@ static struct platform_driver qcom_iommu_ctx_driver = {
> .of_match_table = ctx_of_match,
> },
> .probe = qcom_iommu_ctx_probe,
> - .remove_new = qcom_iommu_ctx_remove,
> + .remove = qcom_iommu_ctx_remove,
> };
>
> static bool qcom_iommu_has_secure_context(struct qcom_iommu_dev *qcom_iommu)
> @@ -931,7 +931,7 @@ static struct platform_driver qcom_iommu_driver = {
> .pm = &qcom_iommu_pm_ops,
> },
> .probe = qcom_iommu_device_probe,
> - .remove_new = qcom_iommu_device_remove,
> + .remove = qcom_iommu_device_remove,
> };
>
> static int __init qcom_iommu_init(void)
> diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
> index ff55b8c30712..074daf1aac4e 100644
> --- a/drivers/iommu/ipmmu-vmsa.c
> +++ b/drivers/iommu/ipmmu-vmsa.c
> @@ -1159,6 +1159,6 @@ static struct platform_driver ipmmu_driver = {
> .pm = pm_sleep_ptr(&ipmmu_pm),
> },
> .probe = ipmmu_probe,
> - .remove_new = ipmmu_remove,
> + .remove = ipmmu_remove,
> };
> builtin_platform_driver(ipmmu_driver);
> diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
> index 989e0869d805..ce40f0a419ea 100644
> --- a/drivers/iommu/msm_iommu.c
> +++ b/drivers/iommu/msm_iommu.c
> @@ -838,6 +838,6 @@ static struct platform_driver msm_iommu_driver = {
> .of_match_table = msm_iommu_dt_match,
> },
> .probe = msm_iommu_probe,
> - .remove_new = msm_iommu_remove,
> + .remove = msm_iommu_remove,
> };
> builtin_platform_driver(msm_iommu_driver);
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index c45313c43b9e..72b68d037b95 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -1794,7 +1794,7 @@ MODULE_DEVICE_TABLE(of, mtk_iommu_of_ids);
>
> static struct platform_driver mtk_iommu_driver = {
> .probe = mtk_iommu_probe,
> - .remove_new = mtk_iommu_remove,
> + .remove = mtk_iommu_remove,
> .driver = {
> .name = "mtk-iommu",
> .of_match_table = mtk_iommu_of_ids,
> diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
> index ee4e55b6b190..480e57ea6635 100644
> --- a/drivers/iommu/mtk_iommu_v1.c
> +++ b/drivers/iommu/mtk_iommu_v1.c
> @@ -745,7 +745,7 @@ static const struct dev_pm_ops mtk_iommu_v1_pm_ops = {
>
> static struct platform_driver mtk_iommu_v1_driver = {
> .probe = mtk_iommu_v1_probe,
> - .remove_new = mtk_iommu_v1_remove,
> + .remove = mtk_iommu_v1_remove,
> .driver = {
> .name = "mtk-iommu-v1",
> .of_match_table = mtk_iommu_v1_of_ids,
> diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
> index 3f72aef8bd5b..b8ced5d0581c 100644
> --- a/drivers/iommu/omap-iommu.c
> +++ b/drivers/iommu/omap-iommu.c
> @@ -1285,7 +1285,7 @@ static const struct of_device_id omap_iommu_of_match[] = {
>
> static struct platform_driver omap_iommu_driver = {
> .probe = omap_iommu_probe,
> - .remove_new = omap_iommu_remove,
> + .remove = omap_iommu_remove,
> .driver = {
> .name = "omap-iommu",
> .pm = &omap_iommu_pm_ops,
> diff --git a/drivers/iommu/riscv/iommu-platform.c b/drivers/iommu/riscv/iommu-platform.c
> index da336863f152..382ba2841849 100644
> --- a/drivers/iommu/riscv/iommu-platform.c
> +++ b/drivers/iommu/riscv/iommu-platform.c
> @@ -81,7 +81,7 @@ static const struct of_device_id riscv_iommu_of_match[] = {
>
> static struct platform_driver riscv_iommu_platform_driver = {
> .probe = riscv_iommu_platform_probe,
> - .remove_new = riscv_iommu_platform_remove,
> + .remove = riscv_iommu_platform_remove,
> .driver = {
> .name = "riscv,iommu",
> .of_match_table = riscv_iommu_of_match,
> diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c
> index a2f4ffe6d949..e84806eee281 100644
> --- a/drivers/iommu/sprd-iommu.c
> +++ b/drivers/iommu/sprd-iommu.c
> @@ -531,7 +531,7 @@ static struct platform_driver sprd_iommu_driver = {
> .suppress_bind_attrs = true,
> },
> .probe = sprd_iommu_probe,
> - .remove_new = sprd_iommu_remove,
> + .remove = sprd_iommu_remove,
> };
> module_platform_driver(sprd_iommu_driver);
>
> base-commit: c88416ba074a8913cf6d61b789dd834bbca6681c
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