block: rbd: make rbd_bus_type const

[PATCH] block: rbd: make rbd_bus_type const

Posted by Ricardo B. Marliere 2 years ago

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

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 0202a4e5d6cf..21f2b9e9b9ff 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -575,7 +575,7 @@ static const struct attribute_group rbd_bus_group = {
 };
 __ATTRIBUTE_GROUPS(rbd_bus);
 
-static struct bus_type rbd_bus_type = {
+static const struct bus_type rbd_bus_type = {
 	.name		= "rbd",
 	.bus_groups	= rbd_bus_groups,
 };

---
base-commit: aa826a9b19b93bf8aabc462381ae436a60b2a320
change-id: 20240204-bus_cleanup-block-9986bfea7975

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

Re: [PATCH] block: rbd: make rbd_bus_type const

Posted by Jens Axboe 2 years ago

On Sun, 04 Feb 2024 12:31:42 -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the rbd_bus_type variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
> 
> 

Applied, thanks!

[1/1] block: rbd: make rbd_bus_type const
      commit: 052618c71c66d5de5e9b6cbcbad26932d951919c

Best regards,
-- 
Jens Axboe

Re: [PATCH] block: rbd: make rbd_bus_type const

Posted by Greg Kroah-Hartman 2 years ago

On Sun, Feb 04, 2024 at 12:31:42PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the rbd_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>

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

Re: [PATCH] block: rbd: make rbd_bus_type const

Posted by Alex Elder 2 years ago

On 2/4/24 9:31 AM, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the rbd_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>

Great!

Reviewed-by: Alex Elder <elder@linaro.org>

> ---
>   drivers/block/rbd.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
> index 0202a4e5d6cf..21f2b9e9b9ff 100644
> --- a/drivers/block/rbd.c
> +++ b/drivers/block/rbd.c
> @@ -575,7 +575,7 @@ static const struct attribute_group rbd_bus_group = {
>   };
>   __ATTRIBUTE_GROUPS(rbd_bus);
>   
> -static struct bus_type rbd_bus_type = {
> +static const struct bus_type rbd_bus_type = {
>   	.name		= "rbd",
>   	.bus_groups	= rbd_bus_groups,
>   };
> 
> ---
> base-commit: aa826a9b19b93bf8aabc462381ae436a60b2a320
> change-id: 20240204-bus_cleanup-block-9986bfea7975
> 
> Best regards,