Re: [PATCH v3] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call

Re: [PATCH v3] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call

[Greg KH]

On Tue, Jan 12, 2021 at 01:36:29PM +0800, 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.
> 
> Fixes: 776f395004d82 ("vhost_vdpa: Support config interrupt in vdpa")
> Acked-by: Jason Wang <jasowang@redhat.com>
> Signed-off-by: Cindy Lu <lulu@redhat.com>
> ---
>  drivers/vhost/vdpa.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>
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Re: [PATCH v3] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call

[Jason Wang]

On 2021/1/12 下午1:36, 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.
>
> Fixes: 776f395004d82 ("vhost_vdpa: Support config interrupt in vdpa")
> Acked-by: Jason Wang <jasowang@redhat.com>
> Signed-off-by: Cindy Lu <lulu@redhat.com>
> ---


Hi Cindy:

I think at least you forget to cc stable.

Thanks


>   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;
>   

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Re: [PATCH v3] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call

[Jason Wang]

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@vger.kernel.org
> Fixes: 776f395004d82 ("vhost_vdpa: Support config interrupt in vdpa")
> Signed-off-by: Cindy Lu <lulu@redhat.com>


Acked-by: Jason Wang <jasowang@redhat.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;
>   

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