[1/2] ARM: sa1111: make sa1111_bus_type const

Message ID 20240211-bus_cleanup-rmk-v1-1-65668e578d55@marliere.net
State New
Headers
Series ARM: struct bus_type cleanup |

Commit Message

Ricardo B. Marliere Feb. 11, 2024, 3:45 p.m. UTC
  Now that the driver core can properly handle constant struct bus_type,
move the sa1111_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@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
 arch/arm/common/sa1111.c               | 2 +-
 arch/arm/include/asm/hardware/sa1111.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
  

Patch

diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 1fbd7363cf11..de5eba0a11f6 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -1367,7 +1367,7 @@  static void sa1111_bus_remove(struct device *dev)
 		drv->remove(sadev);
 }
 
-struct bus_type sa1111_bus_type = {
+const struct bus_type sa1111_bus_type = {
 	.name		= "sa1111-rab",
 	.match		= sa1111_match,
 	.probe		= sa1111_bus_probe,
diff --git a/arch/arm/include/asm/hardware/sa1111.h b/arch/arm/include/asm/hardware/sa1111.h
index d8c6f8a99dfa..02f3f9ca8582 100644
--- a/arch/arm/include/asm/hardware/sa1111.h
+++ b/arch/arm/include/asm/hardware/sa1111.h
@@ -368,7 +368,7 @@ 
 
 
 
-extern struct bus_type sa1111_bus_type;
+extern const struct bus_type sa1111_bus_type;
 
 #define SA1111_DEVID_SBI	(1 << 0)
 #define SA1111_DEVID_SK		(1 << 1)