Herbert Xu ~{PmVHI~} f291196979 [TCP]: Avoid skb_pull if possible when trimming head ... Trimming the head of an skb by calling skb_pull can cause the packet to become unaligned if the length pulled is odd. Since the length is entirely arbitrary for a FIN packet carrying data, this is actually quite common. Unaligned data is not the end of the world, but we should avoid it if it's easily done. In this case it is trivial. Since we're discarding all of the head data it doesn't matter whether we move skb->data forward or back. However, it is still possible to have unaligned skb->data in general. So network drivers should be prepared to handle it instead of crashing. This patch also adds an unlikely marking on len < headlen since partial ACKs on head data are extremely rare in the wild. As the return value of __pskb_trim_head is no longer ever NULL that has been removed. Signed-off-by: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>		2006-06-05 15:03:37 -07:00
..
ipvs	[PATCH] sem2mutex: misc static one-file mutexes	2006-03-26 08:56:55 -08:00
netfilter	[NETFILTER]: PPTP helper: fix sstate/cstate typo	2006-05-28 22:51:05 -07:00
Kconfig	[INET]: Introduce tunnel4/tunnel6	2006-03-28 17:02:46 -08:00
Makefile	[INET]: Introduce tunnel4/tunnel6	2006-03-28 17:02:46 -08:00
af_inet.c	[IPV4]: inet_init() -> fs_initcall	2006-04-29 18:33:14 -07:00
ah4.c	[IPSEC]: Kill unused decap state argument	2006-04-01 00:52:46 -08:00
arp.c	[IPV4]: Possible cleanups.	2006-04-14 15:00:20 -07:00
datagram.c	…
devinet.c	[IPV4]: Possible cleanups.	2006-04-14 15:00:20 -07:00
esp4.c	[IPSEC]: Kill unused decap state argument	2006-04-01 00:52:46 -08:00
fib_frontend.c	[IPV4]: Possible cleanups.	2006-04-14 15:00:20 -07:00
fib_hash.c	…
fib_lookup.h	…
fib_rules.c	[IPV4]: Add fib rule netlink notifications	2006-03-23 01:16:06 -08:00
fib_semantics.c	…
fib_trie.c	[FIB_TRIE]: Fix leaf freeing.	2006-04-09 22:25:23 -07:00
icmp.c	[PATCH] for_each_possible_cpu: network codes	2006-04-11 06:18:31 -07:00
igmp.c	…
inet_connection_sock.c	[INET]: Fix typo in Arnaldo's connection sock compat fixups.	2006-03-20 22:52:32 -08:00
inet_diag.c	…
inet_hashtables.c	[IPV4]: Possible cleanups.	2006-04-14 15:00:20 -07:00
inet_timewait_sock.c	…
inetpeer.c	…
ip_forward.c	…
ip_fragment.c	[IPV4] ip_fragment: Always compute hash with ipfrag_lock held.	2006-04-09 22:43:55 -07:00
ip_gre.c	[INET]: Use port unreachable instead of proto for tunnels	2006-04-09 22:25:29 -07:00
ip_input.c	[IPV4]: Remove likely in ip_rcv_finish()	2006-05-06 18:11:39 -07:00
ip_options.c	[IPV4]: ip_options_fragment() has no effect on fragmentation	2006-05-09 15:18:50 -07:00
ip_output.c	[PATCH] ip_output: account for fraggap when checking to add trailer_len	2006-04-14 16:04:18 -07:00
ip_sockglue.c	[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset	2006-03-20 22:48:35 -08:00
ipcomp.c	[NET]: Fix "ntohl(ntohs" bugs	2006-05-22 16:53:22 -07:00
ipconfig.c	…
ipip.c	[INET]: Move no-tunnel ICMP error to tunnel4/tunnel6	2006-04-09 22:25:25 -07:00
ipmr.c	…
multipath.c	…
multipath_drr.c	…
multipath_random.c	…
multipath_rr.c	…
multipath_wrandom.c	…
netfilter.c	[NETFILTER]: Add address family specific checksum helpers	2006-04-09 22:25:41 -07:00
proc.c	[PATCH] for_each_possible_cpu: network codes	2006-04-11 06:18:31 -07:00
protocol.c	…
raw.c	[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset	2006-03-20 22:48:35 -08:00
route.c	[IPV4]: ip_route_input panic fix	2006-04-17 17:27:11 -07:00
syncookies.c	…
sysctl_net_ipv4.c	[TCP]: sysctl to allow TCP window > 32767 sans wscale	2006-03-20 22:40:29 -08:00
tcp.c	[TCP]: Fix sock_orphan dead lock	2006-05-03 23:31:35 -07:00
tcp_bic.c	…
tcp_cong.c	[TCP]: Fix RFC2465 typo.	2006-03-28 17:02:47 -08:00
tcp_cubic.c	…
tcp_diag.c	…
tcp_highspeed.c	[TCP] tcp_highspeed: Fix problem observed by Xiaoliang (David) Wei	2006-06-02 17:51:08 -07:00
tcp_htcp.c	…
tcp_hybla.c	…
tcp_input.c	[TCP]: reno sacked_out count fix	2006-05-16 21:42:11 -07:00
tcp_ipv4.c	[IPV4]: Possible cleanups.	2006-04-14 15:00:20 -07:00
tcp_minisocks.c	…
tcp_output.c	[TCP]: Avoid skb_pull if possible when trimming head	2006-06-05 15:03:37 -07:00
tcp_scalable.c	…
tcp_timer.c	…
tcp_vegas.c	…
tcp_westwood.c	…
tunnel4.c	[INET]: Move no-tunnel ICMP error to tunnel4/tunnel6	2006-04-09 22:25:25 -07:00
udp.c	[NET]: Identation & other cleanups related to compat_[gs]etsockopt cset	2006-03-20 22:48:35 -08:00
xfrm4_input.c	[INET]: Move no-tunnel ICMP error to tunnel4/tunnel6	2006-04-09 22:25:25 -07:00
xfrm4_output.c	[IPSEC]: Fix IP ID selection	2006-04-29 18:33:16 -07:00
xfrm4_policy.c	[NET]: Fix "ntohl(ntohs" bugs	2006-05-22 16:53:22 -07:00
xfrm4_state.c	…
xfrm4_tunnel.c	[IPSEC]: Kill unused decap state argument	2006-04-01 00:52:46 -08:00