linux-kernel - [PATCH] accel: constify the struct device

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Message-Id: <20240219-device_cleanup-accel-v1-1-5031e5046cff@marliere.net>
Date: Mon, 19 Feb 2024 16:48:28 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Oded Gabbay <ogabbay@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] accel: constify the struct device_type usage

Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
accel_sysfs_device_minor variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
---
 drivers/accel/drm_accel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/accel/drm_accel.c b/drivers/accel/drm_accel.c
index 24cac4c0274b..16c3edb8c46e 100644
--- a/drivers/accel/drm_accel.c
+++ b/drivers/accel/drm_accel.c
@@ -23,7 +23,7 @@ static struct idr accel_minors_idr;

 static struct dentry *accel_debugfs_root;

-static struct device_type accel_sysfs_device_minor = {
+static const struct device_type accel_sysfs_device_minor = {
 	.name = "accel_minor"
 };

---
base-commit: b401b621758e46812da61fa58a67c3fd8d91de0d
change-id: 20240219-device_cleanup-accel-a990dc3bfbc1

Best regards,
-- 
Ricardo B. Marliere <ricardo@...liere.net>