Re: [PATCH 1/2] ntb: ntb_transport: make ntb_transport_bus const

From: Dave Jiang
Date: Mon Feb 05 2024 - 12:24:06 EST




On 2/4/24 9:22 AM, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the ntb_transport_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@xxxxxxxxxxxxxxxxxxx>
> Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>

Reviewed-by: Dave Jiang <dave.jiang@xxxxxxxxx>
> ---
> drivers/ntb/ntb_transport.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
> index f9e7847a378e..0291d80611dc 100644
> --- a/drivers/ntb/ntb_transport.c
> +++ b/drivers/ntb/ntb_transport.c
> @@ -314,7 +314,7 @@ static void ntb_transport_bus_remove(struct device *dev)
> put_device(dev);
> }
>
> -static struct bus_type ntb_transport_bus = {
> +static const struct bus_type ntb_transport_bus = {
> .name = "ntb_transport",
> .match = ntb_transport_bus_match,
> .probe = ntb_transport_bus_probe,
>