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a030847e9f
linux/net
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Herbert Xu a030847e9f [NET]: Avoid copying TCP packets unnecessarily 
TCP packets all have writable heads, that is, even though it's cloned, it is
writable up to the end of the TCP header.  This patch makes skb_checksum_help
aware of this fact by using skb_clone_writable and avoiding a copy for TCP.

I've also modified the BUG_ON tests to be unsigned.  The only case where this
makes a difference is if csum_start points to a location before skb->data.
Since skb->data should always include the header where the checksum field
is (and all currently callers adhere to that), this change is safe and may
uncover bugs later.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15 12:26:34 -07:00
..
9p 9p: fix bad error path in conversion routines 2007-08-23 10:25:05 -05:00
802 [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
8021q [8021Q]: transfer dev_id from real device 2007-10-10 16:54:56 -07:00
appletalk [NET]: sparse warning fixes 2007-10-10 16:54:48 -07:00
atm Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ax25 [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
bluetooth [BLUETOOTH]: Make hidp_setup_input() return int 2007-10-10 16:52:39 -07:00
bridge [NETFILTER]: Replace sk_buff ** with sk_buff * 2007-10-15 12:26:29 -07:00
core [NET]: Avoid copying TCP packets unnecessarily 2007-10-15 12:26:34 -07:00
dccp [DCCP]: Twice the wrong reset code in receiving connection-Requests 2007-10-10 16:54:38 -07:00
decnet [NETFILTER]: Replace sk_buff ** with sk_buff * 2007-10-15 12:26:29 -07:00
econet [NET]: Wrap netdevice hardware header creation. 2007-10-10 16:52:50 -07:00
ethernet [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
ieee80211 [IEEE80211]: Fix softmac lockdep reports. 2007-10-10 16:52:22 -07:00
ipv4 [NETFILTER]: Replace sk_buff ** with sk_buff * 2007-10-15 12:26:29 -07:00
ipv6 [IPV6] __inet6_csk_dst_store(): fix check-after-use 2007-10-15 12:26:32 -07:00
ipx [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
irda [IRDA]: Make the IRDA use the seq_open_private() 2007-10-10 16:55:35 -07:00
iucv [AF_IUCV]: postpone receival of iucv-packets 2007-10-10 16:54:51 -07:00
key [IPSEC]: Lock state when copying non-atomic fields to user-space 2007-10-10 16:55:02 -07:00
lapb [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
llc [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF() 2007-10-10 16:51:42 -07:00
mac80211 [PATCH] mac80211: Defer setting of RX_FLAG_DECRYPTED. 2007-10-10 16:55:23 -07:00
netfilter [NETFILTER]: Replace sk_buff ** with sk_buff * 2007-10-15 12:26:29 -07:00
netlabel [NETLINK]: Introduce nested and byteorder flag to netlink attribute 2007-10-10 16:49:16 -07:00
netlink [NETLINK]: Don't leak 'listeners' in netlink_kernel_create() 2007-10-15 12:26:32 -07:00
netrom [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
packet [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
rfkill [RFKILL]: Add support for hardware-only rfkill buttons 2007-10-10 16:54:11 -07:00
rose [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
rxrpc [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
sched [NETFILTER]: Replace sk_buff ** with sk_buff * 2007-10-15 12:26:29 -07:00
sctp fix breakage in sctp getsockopt 2007-10-14 12:41:51 -07:00
sunrpc Merge git://git.linux-nfs.org/pub/linux/nfs-2.6 2007-10-15 10:47:35 -07:00
tipc [NET]: Wrap netdevice hardware header creation. 2007-10-10 16:52:50 -07:00
unix sched: affine sync wakeups 2007-10-15 17:00:19 +02:00
wanrouter [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
wireless Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
x25 [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
xfrm [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
compat.c O_CLOEXEC for SCM_RIGHTS 2007-07-16 09:05:45 -07:00
Kconfig [NET]: Add network namespace clone & unshare support. 2007-10-10 16:52:46 -07:00
Makefile 9p: Reorganization of 9p file system code 2007-07-14 15:13:40 -05:00
nonet.c
socket.c [NET]: sanitize kernel_accept() error path 2007-10-10 21:09:04 -07:00
sysctl_net.c
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