static int vdpa_mgmtdev_fill()

in vdpa.c [480:523]

• 39 lines of code
• 8 McCabe index (conditional complexity)

static int vdpa_mgmtdev_fill(const struct vdpa_mgmt_dev *mdev, struct sk_buff *msg,
			     u32 portid, u32 seq, int flags)
{
	u64 supported_classes = 0;
	void *hdr;
	int i = 0;
	int err;

	hdr = genlmsg_put(msg, portid, seq, &vdpa_nl_family, flags, VDPA_CMD_MGMTDEV_NEW);
	if (!hdr)
		return -EMSGSIZE;
	err = vdpa_nl_mgmtdev_handle_fill(msg, mdev);
	if (err)
		goto msg_err;

	while (mdev->id_table[i].device) {
		if (mdev->id_table[i].device <= 63)
			supported_classes |= BIT_ULL(mdev->id_table[i].device);
		i++;
	}

	if (nla_put_u64_64bit(msg, VDPA_ATTR_MGMTDEV_SUPPORTED_CLASSES,
			      supported_classes, VDPA_ATTR_UNSPEC)) {
		err = -EMSGSIZE;
		goto msg_err;
	}
	if (nla_put_u32(msg, VDPA_ATTR_DEV_MGMTDEV_MAX_VQS,
			mdev->max_supported_vqs)) {
		err = -EMSGSIZE;
		goto msg_err;
	}
	if (nla_put_u64_64bit(msg, VDPA_ATTR_DEV_SUPPORTED_FEATURES,
			      mdev->supported_features, VDPA_ATTR_PAD)) {
		err = -EMSGSIZE;
		goto msg_err;
	}

	genlmsg_end(msg, hdr);
	return 0;

msg_err:
	genlmsg_cancel(msg, hdr);
	return err;
}