diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2021-03-25 17:38:28 -0700 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-05-26 09:11:41 -0700 |
| commit | c7cbfb028b95360403d579c47aaaeef1ff140964 (patch) | |
| tree | 031e6fe0d24cf4546281008a3817e66e50f3c074 | |
| parent | 88c228b22e001cce1d36112b883bd320c0893ef8 (diff) | |
igb: handle vlan types with checker enabled
The sparse build (C=2) finds some issues with how the driver
dealt with the (very difficult) hardware that in some generations
uses little-endian, and in others uses big endian, for the VLAN
field. The code as written picks __le16 as a type and for some
hardware revisions we override it to __be16 as done in this
patch. This impacted the VF driver as well so fix it there too.
Also change the vlan_tci assignment to override the sparse
warning without changing functionality.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igbvf/netdev.c | 4 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index cf91e3624a89..3a96b61a7229 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -2643,7 +2643,8 @@ static int igb_parse_cls_flower(struct igb_adapter *adapter, } input->filter.match_flags |= IGB_FILTER_FLAG_VLAN_TCI; - input->filter.vlan_tci = match.key->vlan_priority; + input->filter.vlan_tci = + (__force __be16)match.key->vlan_priority; } } @@ -8597,7 +8598,7 @@ static void igb_process_skb_fields(struct igb_ring *rx_ring, if (igb_test_staterr(rx_desc, E1000_RXDEXT_STATERR_LB) && test_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &rx_ring->flags)) - vid = be16_to_cpu(rx_desc->wb.upper.vlan); + vid = be16_to_cpu((__force __be16)rx_desc->wb.upper.vlan); else vid = le16_to_cpu(rx_desc->wb.upper.vlan); diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index fb3fbcb13331..630c1155f196 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -83,14 +83,14 @@ static int igbvf_desc_unused(struct igbvf_ring *ring) static void igbvf_receive_skb(struct igbvf_adapter *adapter, struct net_device *netdev, struct sk_buff *skb, - u32 status, u16 vlan) + u32 status, __le16 vlan) { u16 vid; if (status & E1000_RXD_STAT_VP) { if ((adapter->flags & IGBVF_FLAG_RX_LB_VLAN_BSWAP) && (status & E1000_RXDEXT_STATERR_LB)) - vid = be16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK; + vid = be16_to_cpu((__force __be16)vlan) & E1000_RXD_SPC_VLAN_MASK; else vid = le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK; if (test_bit(vid, adapter->active_vlans)) |