skb->pkt_type is not a bitmask, but contains only value at a time from
the range defined in include/uapi/linux/if_packet.h.
Checking it like if it was a bitmask of values would also cause
PACKET_OTHERHOST, PACKET_LOOPBACK and PACKET_FASTROUTE to be matched by this
check since their lower 2 bits are also set, although that does not fix a real
bug due to how the checks are used, it is still potentially confusing.
This bogus check was introduced in commit 815cccbf ("ixgbe: add setlink,
getlink support to ixgbe and ixgbevf").
Signed-off-by: Florian Fainelli <[email protected]>
---
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a6af7b7..c6be010 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -516,8 +516,9 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector
*q_vector,
/* Workaround hardware that can't do proper VEPA multicast
* source pruning.
*/
- if ((skb->pkt_type & (PACKET_BROADCAST | PACKET_MULTICAST)) &&
- ether_addr_equal(rx_ring->netdev->dev_addr,
+ if ((skb->pkt_type == PACKET_BROADCAST ||
+ skb->pkt_type == PACKET_MULTICAST) &&
+ ether_addr_equal(adapter->netdev->dev_addr,
eth_hdr(skb)->h_source)) {
dev_kfree_skb_irq(skb);
goto next_desc;
--
1.8.3.2
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