linux-kernel - Re: [PATCH v3] vhost_vdpa: fix the problem in vhost_vdpa_set_config

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Message-ID: <757a05d2-c82e-e957-1b7c-55eb64495f1b@redhat.com>
Date:   Tue, 26 Jan 2021 16:28:34 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Cindy Lu <lulu@...hat.com>, mst@...hat.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Cc:     stable@...r.kernel.org
Subject: Re: [PATCH v3] vhost_vdpa: fix the problem in
 vhost_vdpa_set_config_call


On 2021/1/26 下午3:16, Cindy Lu wrote:
> In vhost_vdpa_set_config_call, the cb.private should be vhost_vdpa.
> this cb.private will finally use in vhost_vdpa_config_cb as
> vhost_vdpa. Fix this issue.
>
> Cc: stable@...r.kernel.org
> Fixes: 776f395004d82 ("vhost_vdpa: Support config interrupt in vdpa")
> Signed-off-by: Cindy Lu <lulu@...hat.com>


Acked-by: Jason Wang <jasowang@...hat.com>


> ---
>   drivers/vhost/vdpa.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> index ef688c8c0e0e..3fbb9c1f49da 100644
> --- a/drivers/vhost/vdpa.c
> +++ b/drivers/vhost/vdpa.c
> @@ -319,7 +319,7 @@ static long vhost_vdpa_set_config_call(struct vhost_vdpa *v, u32 __user *argp)
>   	struct eventfd_ctx *ctx;
>   
>   	cb.callback = vhost_vdpa_config_cb;
> -	cb.private = v->vdpa;
> +	cb.private = v;
>   	if (copy_from_user(&fd, argp, sizeof(fd)))
>   		return  -EFAULT;
>