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[NET]: Add NETIF_F_GEN_CSUM and NETIF_F_ALL_CSUM

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The current stack treats NETIF_F_HW_CSUM and NETIF_F_NO_CSUM
identically so we test for them in quite a few places.  For the sake
of brevity, I'm adding the macro NETIF_F_GEN_CSUM for these two.  We
also test the disjunct of NETIF_F_IP_CSUM and the other two in various
places, for that purpose I've added NETIF_F_ALL_CSUM.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2006-06-17 22:06:05 -07:00
committed by David S. Miller
parent 00b7050426
commit 8648b3053b
7 changed files with 13 additions and 24 deletions
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2
net/ipv4/ip_output.c
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@ -840,7 +840,7 @@ int ip_append_data(struct sock *sk,
*/
if (transhdrlen &&
length + fragheaderlen <= mtu &&
rt->u.dst.dev->features&(NETIF_F_IP_CSUM|NETIF_F_NO_CSUM|NETIF_F_HW_CSUM) &&
rt->u.dst.dev->features & NETIF_F_ALL_CSUM &&
!exthdrlen)
csummode = CHECKSUM_HW;