linux-kernel - [PATCH] mfd: mcp-core: make mcp_bus

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Message-Id: <20240204-bus_cleanup-mfd-v1-1-07335ebc034f@marliere.net>
Date: Sun, 04 Feb 2024 17:10:32 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Lee Jones <lee@...nel.org>
Cc: linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] mfd: mcp-core: make mcp_bus_type const

Now that the driver core can properly handle constant struct bus_type,
move the mcp_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>
---
 drivers/mfd/mcp-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/mcp-core.c b/drivers/mfd/mcp-core.c
index 2fa592c37c6f..16ca23311cab 100644
--- a/drivers/mfd/mcp-core.c
+++ b/drivers/mfd/mcp-core.c
@@ -41,7 +41,7 @@ static void mcp_bus_remove(struct device *dev)
 	drv->remove(mcp);
 }

-static struct bus_type mcp_bus_type = {
+static const struct bus_type mcp_bus_type = {
 	.name		= "mcp",
 	.match		= mcp_bus_match,
 	.probe		= mcp_bus_probe,

---
base-commit: 1e0ea9e75ff3f395ad6f85f0be2258ef114a53dc
change-id: 20240204-bus_cleanup-mfd-6ffb8bdbe13c

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