err.no Git - linux-2.6/commit

author	Al Viro <viro@zeniv.linux.org.uk>
	Fri, 3 Nov 2006 08:28:23 +0000 (00:28 -0800)
committer	David S. Miller <davem@sunset.davemloft.net>
	Sun, 5 Nov 2006 22:11:25 +0000 (14:11 -0800)
commit	02e60370d4dac83f22d5ae75d5512bcb9a3f24b7
tree	3952d784c9d7c061a5ff7c0e23277783f10e55d2	tree \| snapshot
parent	4833ed094097323f5f219820f6ebdc8dd66f501f	commit \| diff

[IPX]: Annotate and fix IPX checksum

Calculation of IPX checksum got buggered about 2.4.0. The old variant
mangled the packet; that got fixed, but calculation itself got buggered.
Restored the correct logics, fixed a subtle breakage we used to have even
back then: if the sum is 0 mod 0xffff, we want to return 0, not 0xffff.
The latter has special meaning for IPX (cheksum disabled). Observation
(and obvious fix) nicked from history of FreeBSD ipx_cksum.c...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/ipx.h		diff \| blob \| history
net/ipx/af_ipx.c		diff \| blob \| history
net/ipx/ipx_route.c		diff \| blob \| history