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Message-ID: <d1916f5e-8d89-6f94-c562-8ed6d52f706f@linux.ibm.com>
Date: Mon, 5 Feb 2024 09:00:45 -0500
From: "Jason J. Herne" <jjherne@...ux.ibm.com>
To: "Ricardo B. Marliere" <ricardo@...liere.net>,
Vineeth Vijayan <vneethv@...ux.ibm.com>,
Peter Oberparleiter <oberpar@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>,
Alexander Gordeev <agordeev@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ux.ibm.com>,
Sven Schnelle <svens@...ux.ibm.com>,
Harald Freudenberger <freude@...ux.ibm.com>,
Tony Krowiak <akrowiak@...ux.ibm.com>,
Halil Pasic <pasic@...ux.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] s390: vfio-ap: make matrix_bus const
On 2/3/24 9:58 AM, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the matrix_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/s390/crypto/vfio_ap_drv.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/s390/crypto/vfio_ap_drv.c b/drivers/s390/crypto/vfio_ap_drv.c
> index a5ab03e42ff1..4aeb3e1213c7 100644
> --- a/drivers/s390/crypto/vfio_ap_drv.c
> +++ b/drivers/s390/crypto/vfio_ap_drv.c
> @@ -60,7 +60,7 @@ static void vfio_ap_matrix_dev_release(struct device *dev)
> kfree(matrix_dev);
> }
>
> -static struct bus_type matrix_bus = {
> +static const struct bus_type matrix_bus = {
> .name = "matrix",
> };
>
>
Reviewed-by: Jason J. Herne <jjherne@...ux.ibm.com>
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