linux-kernel - [PATCH] firmware: coreboot: make coreboot_bus

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Message-Id: <20240204-bus_cleanup-firmware-v1-1-d1bff946606d@marliere.net>
Date: Sun, 04 Feb 2024 13:10:18 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Tzung-Bi Shih <tzungbi@...nel.org>, 
 Brian Norris <briannorris@...omium.org>, 
 Julius Werner <jwerner@...omium.org>
Cc: chrome-platform@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] firmware: coreboot: make coreboot_bus_type const

Now that the driver core can properly handle constant struct bus_type,
move the coreboot_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/firmware/google/coreboot_table.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/google/coreboot_table.c b/drivers/firmware/google/coreboot_table.c
index 2a4469bf1b81..fcdc387ae7aa 100644
--- a/drivers/firmware/google/coreboot_table.c
+++ b/drivers/firmware/google/coreboot_table.c
@@ -53,7 +53,7 @@ static void coreboot_bus_remove(struct device *dev)
 		driver->remove(device);
 }

-static struct bus_type coreboot_bus_type = {
+static const struct bus_type coreboot_bus_type = {
 	.name		= "coreboot",
 	.match		= coreboot_bus_match,
 	.probe		= coreboot_bus_probe,

---
base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
change-id: 20240204-bus_cleanup-firmware-99d006104626

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