• David Miller's avatar
    xfrm: Move dst->path into struct xfrm_dst · 0f6c480f
    David Miller authored
    The first member of an IPSEC route bundle chain sets it's dst->path to
    the underlying ipv4/ipv6 route that carries the bundle.
    
    Stated another way, if one were to follow the xfrm_dst->child chain of
    the bundle, the final non-NULL pointer would be the path and point to
    either an ipv4 or an ipv6 route.
    
    This is largely used to make sure that PMTU events propagate down to
    the correct ipv4 or ipv6 route.
    
    When we don't have the top of an IPSEC bundle 'dst->path == dst'.
    
    Move it down into xfrm_dst and key off of dst->xfrm.
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    Reviewed-by: default avatarEric Dumazet <edumazet@google.com>
    0f6c480f
dst.h 12.5 KB