linux-kernel - [PATCH] iommu: make kobj

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Message-Id: <20230214-kobj_type-iommu-v1-1-e7392834b9d0@weissschuh.net>
Date:   Tue, 14 Feb 2023 03:25:53 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>
Cc:     iommu@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] iommu: make kobj_type structure constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 drivers/iommu/iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 5f6a85aea501..1dd4ec31301d 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -714,7 +714,7 @@ static void iommu_group_release(struct kobject *kobj)
 	kfree(group);
 }
 
-static struct kobj_type iommu_group_ktype = {
+static const struct kobj_type iommu_group_ktype = {
 	.sysfs_ops = &iommu_group_sysfs_ops,
 	.release = iommu_group_release,
 };

---
base-commit: f6feea56f66d34259c4222fa02e8171c4f2673d1
change-id: 20230214-kobj_type-iommu-9eede43d1075

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>