Re: [IPX]: Fix checksum computation.

[Stephen Hemminger <shemminger@xxxxxxxx>]

On Fri, 31 Oct 2003 13:53:28 -0800
"David S. Miller" <davem@xxxxxxxxxx> wrote:

> On Fri, 31 Oct 2003 13:50:04 -0800
> Joe Perches <joe@xxxxxxxxxxx> wrote:
> 
> > Was an old NG Sniffer being used to verify this?
> > Sniffer had a long term problem with IPX checksums.
> 
> No, Arnaldo would verify the checksum by running the
> old code and the new code, they produced different
> checksums on every sendmsg() call.
> 
> He then tested it further by making sure he could use
> netatalk successfully between a 2.4.x Linux appletalk
> box and a 2.6.x system with the checksum patch applied.
> Without the patch the 2.4.x system would reject all packets
> sent by the 2.6.x box.
>

Actually, the before the "optimization" went in I did testing between
old 2.4.x and 2.6.x as well as standalone comparisons.  The problem is
a compiler screwup, that probably isn't worth investigating further.