linux-kernel - Re: [PATCH] vhost: correct misleading printing information

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Message-ID: <e004b5d6-e74c-44a8-afaa-b6f4b993817d@linux.alibaba.com>
Date: Fri, 15 Mar 2024 15:53:18 +0800
From: Xianting Tian <xianting.tian@...ux.alibaba.com>
To: mst@...hat.com, jasowang@...hat.com
Cc: kvm@...r.kernel.org, virtualization@...ts.linux.dev,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vhost: correct misleading printing information

it is a very minor fix, I think it can be applied

在 2024/3/11 下午4:21, Xianting Tian 写道:
> Guest moved avail idx not used idx when we need to print log if
> '(vq->avail_idx - last_avail_idx) > vq->num', so fix it.
>
> Signed-off-by: Xianting Tian <xianting.tian@...ux.alibaba.com>
> ---
>   drivers/vhost/vhost.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 045f666b4f12..1f3604c79394 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -2515,7 +2515,7 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
>   		vq->avail_idx = vhost16_to_cpu(vq, avail_idx);
>   
>   		if (unlikely((u16)(vq->avail_idx - last_avail_idx) > vq->num)) {
> -			vq_err(vq, "Guest moved used index from %u to %u",
> +			vq_err(vq, "Guest moved avail index from %u to %u",
>   				last_avail_idx, vq->avail_idx);
>   			return -EFAULT;
>   		}