• Martin Varghese's avatar
    net: Fixed updating of ethertype in skb_mpls_push() · d04ac224
    Martin Varghese authored
    The skb_mpls_push was not updating ethertype of an ethernet packet if
    the packet was originally received from a non ARPHRD_ETHER device.
    
    In the below OVS data path flow, since the device corresponding to
    port 7 is an l3 device (ARPHRD_NONE) the skb_mpls_push function does
    not update the ethertype of the packet even though the previous
    push_eth action had added an ethernet header to the packet.
    
    recirc_id(0),in_port(7),eth_type(0x0800),ipv4(tos=0/0xfc,ttl=64,frag=no),
    actions:push_eth(src=00:00:00:00:00:00,dst=00:00:00:00:00:00),
    push_mpls(label=13,tc=0,ttl=64,bos=1,eth_type=0x8847),4
    
    Fixes: 8822e270 ("net: core: move push MPLS functionality from OvS to core helper")
    Signed-off-by: default avatarMartin Varghese <martin.varghese@nokia.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d04ac224
skbuff.c 151 KB