> From: Zhu Lingshan <lingshan.zhu@xxxxxxxxx>
> Sent: Friday, July 1, 2022 9:28 AM
>
> Users may want to query the config space of a vDPA device, to choose a
> appropriate one for a certain guest. This means the users need to read the
> config space before FEATURES_OK, and the existence of config space
> contents does not depend on FEATURES_OK.
>
> The spec says:
> The device MUST allow reading of any device-specific configuration field
> before FEATURES_OK is set by the driver. This includes fields which are
> conditional on feature bits, as long as those feature bits are offered by the
> device.
>
> Fixes: 30ef7a8ac8a07 (vdpa: Read device configuration only if FEATURES_OK)
Fix is fine, but fixes tag needs correction described below.
Above commit id is 13 letters should be 12.
And
It should be in format
Fixes: 30ef7a8ac8a0 ("vdpa: Read device configuration only if FEATURES_OK")
Please use checkpatch.pl script before posting the patches to catch these errors.
There is a bot that looks at the fixes tag and identifies the right kernel version to apply this fix.
> Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxxxx>
> ---
> drivers/vdpa/vdpa.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index
> 9b0e39b2f022..d76b22b2f7ae 100644
> --- a/drivers/vdpa/vdpa.c
> +++ b/drivers/vdpa/vdpa.c
> @@ -851,17 +851,9 @@ vdpa_dev_config_fill(struct vdpa_device *vdev,
> struct sk_buff *msg, u32 portid, {
> u32 device_id;
> void *hdr;
> - u8 status;
> int err;
>
> down_read(&vdev->cf_lock);
> - status = vdev->config->get_status(vdev);
> - if (!(status & VIRTIO_CONFIG_S_FEATURES_OK)) {
> - NL_SET_ERR_MSG_MOD(extack, "Features negotiation not
> completed");
> - err = -EAGAIN;
> - goto out;
> - }
> -
> hdr = genlmsg_put(msg, portid, seq, &vdpa_nl_family, flags,
> VDPA_CMD_DEV_CONFIG_GET);
> if (!hdr) {
> --
> 2.31.1
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