Re: [PATCH V2 2/3] vdpa_sim_net: support feature provisioning

[Si-Wei Liu]

Hi Michael,

Noticed that you just merged this series that we now got two nominally 
duplicated attributes: VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES and 
VDPA_ATTR_DEV_FEATURES. I think Jason agreed to remove one of them but 
did not get chance to post a new series to catch up with the merge 
window. Do you mind if I post a format patch similar as below to rectify 
this quickly from linux-next, without unnecessarily getting the dup 
exposed to the uAPI?

Thanks,
-Siwei

--- a/drivers/vdpa/vdpa.c
+++ b/drivers/vdpa/vdpa.c
@@ -855,7 +855,7 @@ static int vdpa_dev_net_config_fill(struct 
vdpa_device *vdev, struct sk_buff *ms

        features_device = vdev->config->get_device_features(vdev);

-       if (nla_put_u64_64bit(msg, 
VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES, features_device,
+       if (nla_put_u64_64bit(msg, VDPA_ATTR_DEV_FEATURES, features_device,
                              VDPA_ATTR_PAD))
                return -EMSGSIZE;

diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h
index 9bd7923..6e620c3 100644
--- a/include/uapi/linux/vdpa.h
+++ b/include/uapi/linux/vdpa.h
@@ -53,10 +53,8 @@ enum vdpa_attr {
        VDPA_ATTR_DEV_VENDOR_ATTR_NAME,         /* string */
        VDPA_ATTR_DEV_VENDOR_ATTR_VALUE,        /* u64 */

-       VDPA_ATTR_DEV_FEATURES,                 /* u64 */
-
        /* virtio features that are supported by the vDPA device */
-       VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES,  /* u64 */
+       VDPA_ATTR_DEV_FEATURES,                 /* u64 */

        /* new attributes must be added above here */
        VDPA_ATTR_MAX,


On 9/28/2022 9:10 PM, Jason Wang wrote:
> I think VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES and
> VDPA_ATTR_DEV_FEATURES are equivalent, we can rebase on each other if
> it is needed.
>
> Thanks