linux-kernel - [PATCH] bus: ti-sysc: constify the struct device

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Message-Id: <20240219-device_cleanup-ti-sysc-v1-1-13b53177d0a5@marliere.net>
Date: Mon, 19 Feb 2024 09:10:00 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Tony Lindgren <tony@...mide.com>
Cc: linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] bus: ti-sysc: 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
sysc_device_type 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/bus/ti-sysc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 245e5e827d0d..41d33f39efe5 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -2400,7 +2400,7 @@ static int sysc_child_add_clocks(struct sysc *ddata,
 	return 0;
 }

-static struct device_type sysc_device_type = {
+static const struct device_type sysc_device_type = {
 };

 static struct sysc *sysc_child_to_parent(struct device *dev)

---
base-commit: 0012c1958460386adc5770baf2f53206aed77ff3
change-id: 20240219-device_cleanup-ti-sysc-aadfa0ba7b30

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