• David S. Miller's avatar
    ipv4: Prepare for change of rt->rt_iif encoding. · 92101b3b
    David S. Miller authored
    Use inet_iif() consistently, and for TCP record the input interface of
    cached RX dst in inet sock.
    rt->rt_iif is going to be encoded differently, so that we can
    legitimately cache input routes in the FIB info more aggressively.
    When the input interface is "use SKB device index" the rt->rt_iif will
    be set to zero.
    This forces us to move the TCP RX dst cache installation into the ipv4
    specific code, and as well it should since doing the route caching for
    ipv6 is pointless at the moment since it is not inspected in the ipv6
    input paths yet.
    Also, remove the unlikely on dst->obsolete, all ipv4 dsts have
    obsolete set to a non-zero value to force invocation of the check
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
inet_sock.h 6.15 KB