vdpa: make vdpa_bus const

Message ID 20240204-bus_cleanup-vdpa-v1-1-1745eccb0a5c@marliere.net
State New
Headers
Series vdpa: make vdpa_bus const |

Commit Message

Ricardo B. Marliere Feb. 4, 2024, 8:50 p.m. UTC
  Now that the driver core can properly handle constant struct bus_type,
move the vdpa_bus 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>
---
 drivers/vdpa/vdpa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


---
base-commit: 41b9fb381a486360b2daaec0c7480f8e3ff72bc7
change-id: 20240204-bus_cleanup-vdpa-8e19b86329f6

Best regards,
  

Comments

Greg KH Feb. 5, 2024, 12:46 p.m. UTC | #1
On Sun, Feb 04, 2024 at 05:50:45PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the vdpa_bus 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>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  

Patch

diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
index d0695680b282..c73c06102e7e 100644
--- a/drivers/vdpa/vdpa.c
+++ b/drivers/vdpa/vdpa.c
@@ -115,7 +115,7 @@  static const struct attribute_group vdpa_dev_group = {
 };
 __ATTRIBUTE_GROUPS(vdpa_dev);
 
-static struct bus_type vdpa_bus = {
+static const struct bus_type vdpa_bus = {
 	.name  = "vdpa",
 	.dev_groups = vdpa_dev_groups,
 	.match = vdpa_dev_match,