Hi Willem, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on ipvs/master] [also build test WARNING on linus/master v5.11-rc6 next-20210125] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Willem-de-Bruijn/virtio-net-add-tx-hash-rx-tstamp-and-tx-tstamp/20201229-002604 base: https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master config: x86_64-randconfig-s021-20201228 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty # https://github.com/0day-ci/linux/commit/be9cab7692382c7886333b498d1d8adbba1881f7 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Willem-de-Bruijn/virtio-net-add-tx-hash-rx-tstamp-and-tx-tstamp/20201229-002604 git checkout be9cab7692382c7886333b498d1d8adbba1881f7 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> "sparse warnings: (new ones prefixed by >>)" drivers/net/virtio_net.c:1099:80: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long long [usertype] ns @@ got restricted __virtio64 [usertype] tstamp @@ drivers/net/virtio_net.c:1099:80: sparse: expected unsigned long long [usertype] ns drivers/net/virtio_net.c:1099:80: sparse: got restricted __virtio64 [usertype] tstamp >> drivers/net/virtio_net.c:1583:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] value @@ got restricted __virtio32 @@ drivers/net/virtio_net.c:1583:33: sparse: expected restricted __le32 [usertype] value drivers/net/virtio_net.c:1583:33: sparse: got restricted __virtio32 >> drivers/net/virtio_net.c:1584:34: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] report @@ got int @@ drivers/net/virtio_net.c:1584:34: sparse: expected restricted __le16 [usertype] report drivers/net/virtio_net.c:1584:34: sparse: got int vim +1583 drivers/net/virtio_net.c 1550 1551 static int xmit_skb(struct send_queue *sq, struct sk_buff *skb) 1552 { 1553 struct virtio_net_hdr_mrg_rxbuf *hdr; 1554 const unsigned char *dest = ((struct ethhdr *)skb->data)->h_dest; 1555 struct virtnet_info *vi = sq->vq->vdev->priv; 1556 struct virtio_net_hdr_v12 *h12; 1557 int num_sg; 1558 unsigned hdr_len = vi->hdr_len; 1559 bool can_push; 1560 1561 pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest); 1562 1563 can_push = vi->any_header_sg && 1564 !((unsigned long)skb->data & (__alignof__(*hdr) - 1)) && 1565 !skb_header_cloned(skb) && skb_headroom(skb) >= hdr_len; 1566 /* Even if we can, don't push here yet as this would skew 1567 * csum_start offset below. */ 1568 if (can_push) 1569 hdr = (struct virtio_net_hdr_mrg_rxbuf *)(skb->data - hdr_len); 1570 else 1571 hdr = skb_vnet_hdr(skb); 1572 1573 if (virtio_net_hdr_from_skb(skb, &hdr->hdr, 1574 virtio_is_little_endian(vi->vdev), false, 1575 0)) 1576 BUG(); 1577 1578 if (vi->mergeable_rx_bufs) 1579 hdr->num_buffers = 0; 1580 1581 h12 = (void *)hdr; 1582 if (vi->has_tx_hash) { > 1583 h12->hash.value = cpu_to_virtio32(vi->vdev, skb->hash); > 1584 h12->hash.report = skb->l4_hash ? VIRTIO_NET_HASH_REPORT_L4 : 1585 VIRTIO_NET_HASH_REPORT_OTHER; 1586 h12->hash.flow_state = VIRTIO_NET_HASH_STATE_DEFAULT; 1587 } 1588 if (vi->has_tx_tstamp) 1589 h12->tstamp = cpu_to_virtio64(vi->vdev, skb->tstamp); 1590 1591 sg_init_table(sq->sg, skb_shinfo(skb)->nr_frags + (can_push ? 1 : 2)); 1592 if (can_push) { 1593 __skb_push(skb, hdr_len); 1594 num_sg = skb_to_sgvec(skb, sq->sg, 0, skb->len); 1595 if (unlikely(num_sg < 0)) 1596 return num_sg; 1597 /* Pull header back to avoid skew in tx bytes calculations. */ 1598 __skb_pull(skb, hdr_len); 1599 } else { 1600 sg_set_buf(sq->sg, hdr, hdr_len); 1601 num_sg = skb_to_sgvec(skb, sq->sg + 1, 0, skb->len); 1602 if (unlikely(num_sg < 0)) 1603 return num_sg; 1604 num_sg++; 1605 } 1606 return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC); 1607 } 1608 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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