Thread (24 messages) 24 messages, 3 authors, 2022-06-07

Re: [PATCH 6/6] vDPA: fix 'cast to restricted le16' warnings in vdpa_dev_net_config_fill()

From: Jason Wang <jasowang@redhat.com>
Date: 2022-06-07 06:16:09
Also in: virtualization

On Mon, Jun 6, 2022 at 4:22 PM Zhu, Lingshan [off-list ref] wrote:


On 6/2/2022 3:40 PM, Jason Wang wrote:
quoted
On Thu, Jun 2, 2022 at 10:48 AM Zhu Lingshan [off-list ref] wrote:
quoted
This commit fixes spars warnings: cast to restricted __le16
in function vdpa_dev_net_config_fill()

Signed-off-by: Zhu Lingshan <redacted>
---
  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()?
I will work out a vdpa16_to_cpu()
I meant __virtio16_to_cpu(true, xxx) actually here.

Thanks
Thanks,
Zhu Lingshan
quoted
Thanks
quoted
         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
  
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