• Eric W. Biederman's avatar
    neigh: Factor out ___neigh_lookup_noref · 60395a20
    Eric W. Biederman authored
    While looking at the mpls code I found myself writing yet another
    version of neigh_lookup_noref.  We currently have __ipv4_lookup_noref
    and __ipv6_lookup_noref.
    
    So to make my work a little easier and to make it a smidge easier to
    verify/maintain the mpls code in the future I stopped and wrote
    ___neigh_lookup_noref.  Then I rewote __ipv4_lookup_noref and
    __ipv6_lookup_noref in terms of this new function.  I tested my new
    version by verifying that the same code is generated in
    ip_finish_output2 and ip6_finish_output2 where these functions are
    inlined.
    
    To get to ___neigh_lookup_noref I added a new neighbour cache table
    function key_eq.  So that the static size of the key would be
    available.
    
    I also added __neigh_lookup_noref for people who want to to lookup
    a neighbour table entry quickly but don't know which neibhgour table
    they are going to look up.
    Signed-off-by: 's avatar"Eric W. Biederman" <ebiederm@xmission.com>
    Signed-off-by: 's avatarDavid S. Miller <davem@davemloft.net>
    60395a20
arp.h 1.45 KB