linux-kernel - [PATCH] nvmem: core: make nvmem_layout_bus

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Message-Id: <20240214-bus_cleanup-nvmem2-v1-1-97960007da18@marliere.net>
Date: Wed, 14 Feb 2024 16:04:57 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: linux-kernel@...r.kernel.org, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH] nvmem: core: make nvmem_layout_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 nvmem_layout_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/nvmem/layouts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvmem/layouts.c b/drivers/nvmem/layouts.c
index 6a6aa58369ff..8b5e2de138eb 100644
--- a/drivers/nvmem/layouts.c
+++ b/drivers/nvmem/layouts.c
@@ -45,7 +45,7 @@ static void nvmem_layout_bus_remove(struct device *dev)
 	return drv->remove(layout);
 }

-static struct bus_type nvmem_layout_bus_type = {
+static const struct bus_type nvmem_layout_bus_type = {
 	.name		= "nvmem-layout",
 	.match		= nvmem_layout_bus_match,
 	.probe		= nvmem_layout_bus_probe,

---
base-commit: 2c8df24cc166478910c4e9e870adf44d157330fa
change-id: 20240214-bus_cleanup-nvmem2-b77804172a0b

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