netdev - Re: [PATCH 6/6] vDPA: fix 'cast to restricted le16' warnings in vdpa_dev_net_config

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Message-ID: <CACGkMEtS6W8wXdrXbQuniZ-ox1WsCAc1UQHJGD=J4PViviQYpA@mail.gmail.com>
Date:   Thu, 2 Jun 2022 15:40:35 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Zhu Lingshan <lingshan.zhu@...el.com>
Cc:     mst <mst@...hat.com>,
        virtualization <virtualization@...ts.linux-foundation.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH 6/6] vDPA: fix 'cast to restricted le16' warnings in vdpa_dev_net_config_fill()

On Thu, Jun 2, 2022 at 10:48 AM Zhu Lingshan <lingshan.zhu@...el.com> wrote:
>
> This commit fixes spars warnings: cast to restricted __le16
> in function vdpa_dev_net_config_fill()
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu@...el.com>
> ---
>  drivers/vdpa/vdpa.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
> index 50a11ece603e..2719ce9962fc 100644
> --- a/drivers/vdpa/vdpa.c
> +++ b/drivers/vdpa/vdpa.c
> @@ -837,11 +837,11 @@ static int vdpa_dev_net_config_fill(struct vdpa_device *vdev, struct sk_buff *ms
>                     config.mac))
>                 return -EMSGSIZE;
>
> -       val_u16 = le16_to_cpu(config.status);
> +       val_u16 = le16_to_cpu((__force __le16)config.status);

Can we use virtio accessors like virtio16_to_cpu()?

Thanks

>         if (nla_put_u16(msg, VDPA_ATTR_DEV_NET_STATUS, val_u16))
>                 return -EMSGSIZE;
>
> -       val_u16 = le16_to_cpu(config.mtu);
> +       val_u16 = le16_to_cpu((__force __le16)config.mtu);
>         if (nla_put_u16(msg, VDPA_ATTR_DEV_NET_CFG_MTU, val_u16))
>                 return -EMSGSIZE;
>
> --
> 2.31.1
>