Re: [PATCH 22/23] vring: use bvec_set_page to initialize a bvec

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On Mon, Jan 30, 2023 at 10:21:56AM +0100, Christoph Hellwig wrote:
> Use the bvec_set_page helper to initialize a bvec.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>

> ---
>  drivers/vhost/vringh.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
> index 33eb941fcf1546..a1e27da544814a 100644
> --- a/drivers/vhost/vringh.c
> +++ b/drivers/vhost/vringh.c
> @@ -1126,9 +1126,8 @@ static int iotlb_translate(const struct vringh *vrh,
>  		size = map->size - addr + map->start;
>  		pa = map->addr + addr - map->start;
>  		pfn = pa >> PAGE_SHIFT;
> -		iov[ret].bv_page = pfn_to_page(pfn);
> -		iov[ret].bv_len = min(len - s, size);
> -		iov[ret].bv_offset = pa & (PAGE_SIZE - 1);
> +		bvec_set_page(&iov[ret], pfn_to_page(pfn), min(len - s, size),
> +			      pa & (PAGE_SIZE - 1));
>  		s += size;
>  		addr += size;
>  		++ret;
> -- 
> 2.39.0

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