linux-kernel - [PATCH v2] siox: make siox_bus

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Message-Id: <20240204-bus_cleanup-siox-v2-1-3813a6a55dcc@marliere.net>
Date: Sun, 04 Feb 2024 19:26:42 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Thorsten Scherer <t.scherer@...elmann.de>, 
 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>
Cc: linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH v2] siox: make siox_bus_type const

Since commit d492cc2573a0 ("driver core: device.h: make struct bus_type
a const *"), the driver core can properly handle constant struct
bus_type. Move the siox_bus_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>
Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
---
Changes in v2:
- Fixed changelog: mentioned commit d492cc2573a0 instead of the word
  "Now".
- Link to v1: https://lore.kernel.org/r/20240204-bus_cleanup-siox-v1-1-2d12583d3a6c@marliere.net
---
 drivers/siox/siox-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/siox/siox-core.c b/drivers/siox/siox-core.c
index 561408583b2b..a1eda7bd76ed 100644
--- a/drivers/siox/siox-core.c
+++ b/drivers/siox/siox-core.c
@@ -543,7 +543,7 @@ static void siox_shutdown(struct device *dev)
 		sdriver->shutdown(sdevice);
 }

-static struct bus_type siox_bus_type = {
+static const struct bus_type siox_bus_type = {
 	.name = "siox",
 	.match = siox_match,
 	.probe = siox_probe,

---
base-commit: 41b9fb381a486360b2daaec0c7480f8e3ff72bc7
change-id: 20240204-bus_cleanup-siox-ccf8775bf069

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