• Herbert Xu's avatar
    [NET]: Eliminate duplicate copies of dst_discard · 352e512c
    Herbert Xu authored
    We have a number of copies of dst_discard scattered around the place
    which all do the same thing, namely free a packet on the input or
    output paths.
    
    This patch deletes all of them except dst_discard and points all the
    users to it.
    
    The only non-trivial bit is decnet where it returns an error.
    However, conceptually this is identical to the blackhole functions
    used in IPv4 and IPv6 which do not return errors.  So they should
    either all return errors or all return zero.  For now I've stuck with
    the majority and picked zero as the return value.
    
    It doesn't really matter in practice since few if any driver would
    react differently depending on a zero return value or NET_RX_DROP.
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    352e512c
dn_route.c 43.5 KB