linux-kernel - Re: [PATCH 2/3] scsi: iscsi: make iscsi_flashnode

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Message-ID: <CAPj3X_UbiLY4MQaUjHkijpSi1LvjG-1BSfO5td7rk__2weshZQ@mail.gmail.com>
Date: Sat, 3 Feb 2024 13:12:42 -0800
From: Lee Duncan <lduncan@...e.com>
To: "Ricardo B. Marliere" <ricardo@...liere.net>
Cc: Hannes Reinecke <hare@...e.de>, "James E.J. Bottomley" <jejb@...ux.ibm.com>, 
	"Martin K. Petersen" <martin.petersen@...cle.com>, Chris Leech <cleech@...hat.com>, 
	Mike Christie <michael.christie@...cle.com>, linux-scsi@...r.kernel.org, 
	linux-kernel@...r.kernel.org, open-iscsi@...glegroups.com, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/3] scsi: iscsi: make iscsi_flashnode_bus const

On Sat, Feb 3, 2024 at 10:38 AM Ricardo B. Marliere
<ricardo@...liere.net> wrote:
>
> Now that the driver core can properly handle constant struct bus_type,
> move the iscsi_flashnode_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@...uxfoundation.org>
> Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
> ---
>  drivers/scsi/scsi_transport_iscsi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
> index 3075b2ddf7a6..af3ac6346796 100644
> --- a/drivers/scsi/scsi_transport_iscsi.c
> +++ b/drivers/scsi/scsi_transport_iscsi.c
> @@ -1201,7 +1201,7 @@ static const struct device_type iscsi_flashnode_conn_dev_type = {
>         .release = iscsi_flashnode_conn_release,
>  };
>
> -static struct bus_type iscsi_flashnode_bus;
> +static const struct bus_type iscsi_flashnode_bus;
>
>  int iscsi_flashnode_bus_match(struct device *dev,
>                                      struct device_driver *drv)
> @@ -1212,7 +1212,7 @@ int iscsi_flashnode_bus_match(struct device *dev,
>  }
>  EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match);
>
> -static struct bus_type iscsi_flashnode_bus = {
> +static const struct bus_type iscsi_flashnode_bus = {
>         .name = "iscsi_flashnode",
>         .match = &iscsi_flashnode_bus_match,
>  };
>
> --
> 2.43.0
>

Reviewed-by: Lee Duncan <lduncan@...e.com>