From: Yong Wu <yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>,
Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: youlin.pei-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Nicolas Boichat
<drinkcat-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
arnd-r2nGTMty4D4@public.gmane.org,
srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Tomasz Figa <tfiga-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Arvind Yadav
<arvind.yadav.cs-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
yingjoe.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH v3 14/15] iommu/mediatek: Constify iommu_ops
Date: Sat, 17 Nov 2018 10:35:41 +0800 [thread overview]
Message-ID: <1542422142-30688-15-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1542422142-30688-1-git-send-email-yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
From: Arvind Yadav <arvind.yadav.cs-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Signed-off-by: Yong Wu <yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
[Yong: Change the title to iommu/mediatek: xx]
---
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 63406c5..5775e8f 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -119,7 +119,7 @@ struct mtk_iommu_domain {
struct iommu_domain domain;
};
-static struct iommu_ops mtk_iommu_ops;
+static const struct iommu_ops mtk_iommu_ops;
static LIST_HEAD(m4ulist); /* List all the M4U HWs */
@@ -503,7 +503,7 @@ 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 0e78084..27867b8 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -362,7 +362,7 @@ 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
@@ -524,7 +524,7 @@ 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
next prev parent reply other threads:[~2018-11-17 2:35 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-17 2:35 [PATCH v3 00/15] MT8183 IOMMU SUPPORT Yong Wu
2018-11-17 2:35 ` [PATCH v3 01/15] dt-bindings: mediatek: Add binding for mt8183 IOMMU and SMI Yong Wu
2018-11-17 2:35 ` [PATCH v3 03/15] memory: mtk-smi: Use a general config_port interface Yong Wu
2018-11-17 2:35 ` [PATCH v3 07/15] iommu/mediatek: Add mmu1 support Yong Wu
2018-11-17 2:35 ` [PATCH v3 11/15] iommu/mediatek: Add VLD_PA_RANGE register backup when suspend Yong Wu
[not found] ` <1542422142-30688-1-git-send-email-yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-11-17 2:35 ` [PATCH v3 02/15] iommu/mediatek: Use a struct as the platform data Yong Wu
2018-11-17 2:35 ` [PATCH v3 04/15] iommu/io-pgtable-arm-v7s: Add paddr_to_iopte and iopte_to_paddr helpers Yong Wu
2018-11-17 2:35 ` [PATCH v3 05/15] iommu/io-pgtable-arm-v7s: Extend MediaTek 4GB Mode Yong Wu
2018-11-17 2:35 ` [PATCH v3 06/15] iommu/mediatek: Add mt8183 IOMMU support Yong Wu
[not found] ` <1542422142-30688-7-git-send-email-yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-12-02 23:56 ` Matthias Brugger
2018-12-03 8:40 ` Yong Wu
2018-11-17 2:35 ` [PATCH v3 08/15] memory: mtk-smi: Invoke pm runtime_callback to enable clocks Yong Wu
2018-11-17 2:35 ` [PATCH v3 09/15] memory: mtk-smi: Use a struct for the platform data for smi-common Yong Wu
2018-11-17 2:35 ` [PATCH v3 10/15] memory: mtk-smi: Add bus_sel for mt8183 Yong Wu
[not found] ` <1542422142-30688-11-git-send-email-yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-11-23 2:59 ` Yong Wu
2018-11-17 2:35 ` [PATCH v3 12/15] iommu/mediatek: Add shutdown callback Yong Wu
2018-11-17 2:35 ` [PATCH v3 13/15] memory: mtk-smi: Get rid of need_larbid Yong Wu
2018-12-02 23:04 ` Matthias Brugger
2018-12-03 8:40 ` Yong Wu
2018-11-17 2:35 ` Yong Wu [this message]
2018-11-17 2:35 ` [PATCH v3 15/15] iommu/mediatek: Switch to SPDX license identifier Yong Wu
2018-11-22 12:59 ` [PATCH v3 00/15] MT8183 IOMMU SUPPORT Joerg Roedel
[not found] ` <20181122125931.GC1586-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2018-11-22 13:35 ` Will Deacon
2018-11-22 13:42 ` Joerg Roedel
2018-11-23 2:55 ` Yong Wu
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