linux-kernel - [PATCH] dma-buf: make kobj

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Message-Id: <20230217-kobj_type-dma-buf-v1-1-b84a3616522c@weissschuh.net>
Date:   Fri, 17 Feb 2023 03:13:22 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>
Cc:     linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] dma-buf: 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/dma-buf/dma-buf-sysfs-stats.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-buf-sysfs-stats.c b/drivers/dma-buf/dma-buf-sysfs-stats.c
index fbf725fae7c1..6cfbbf0720bd 100644
--- a/drivers/dma-buf/dma-buf-sysfs-stats.c
+++ b/drivers/dma-buf/dma-buf-sysfs-stats.c
@@ -112,7 +112,7 @@ static void dma_buf_sysfs_release(struct kobject *kobj)
 	kfree(sysfs_entry);
 }
 
-static struct kobj_type dma_buf_ktype = {
+static const struct kobj_type dma_buf_ktype = {
 	.sysfs_ops = &dma_buf_stats_sysfs_ops,
 	.release = dma_buf_sysfs_release,
 	.default_groups = dma_buf_stats_default_groups,

---
base-commit: 3ac88fa4605ec98e545fb3ad0154f575fda2de5f
change-id: 20230217-kobj_type-dma-buf-a2ea6a8a1de3

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