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Paolo Abeni 72a338bcc6 net: core: rework basic flow dissection helper 
When the core networking needs to detect the transport offset in a given
packet and parse it explicitly, a full-blown flow_keys struct is used for
storage.
This patch introduces a smaller keys store, rework the basic flow dissect
helper to use it, and apply this new helper where possible - namely in
skb_probe_transport_header(). The used flow dissector data structures
are renamed to match more closely the new role.

The above gives ~50% performance improvement in micro benchmarking around
skb_probe_transport_header() and ~30% around eth_get_headlen(), mostly due
to the smaller memset. Small, but measurable improvement is measured also
in macro benchmarking.

v1 -> v2: use the new helper in eth_get_headlen() and skb_get_poff(),
  as per DaveM suggestion

Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2018-05-08 00:02:36 -04:00
..
6lowpan
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9p net/9p: correct the variable name in v9fs_get_trans_by_name() comment 2018-05-07 23:38:15 -04:00
802 treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
8021q vlan: correct the file path in vlan_dev_change_flags() comment 2018-05-07 23:37:30 -04:00
appletalk net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
atm net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
ax25 net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2018-04-08 17:19:15 -04:00
bpf bpf: making bpf_prog_test run aware of possible data_end ptr change 2018-04-18 23:34:16 +02:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2018-05-06 21:51:37 -04:00
caif net: caif: fix spelling mistake "UKNOWN" -> "UNKNOWN" 2018-04-19 13:37:10 -04:00
can net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ceph libceph: validate con->state at the top of try_write() 2018-04-26 17:39:08 +02:00
core net: core: rework basic flow dissection helper 2018-05-08 00:02:36 -04:00
dcb
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dccp dccp: fix tasklet usage 2018-05-03 15:14:57 -04:00
decnet net: fib_rules: add extack support 2018-04-23 10:21:24 -04:00
dns_resolver KEYS: DNS: limit the length of option strings 2018-04-17 15:17:41 -04:00
dsa switchdev: Add fdb.added_by_user to switchdev notifications 2018-05-03 13:46:47 -04:00
ethernet net: core: rework basic flow dissection helper 2018-05-08 00:02:36 -04:00
hsr
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ieee802154 inet: frags: fix ip6frag_low_thresh boundary 2018-04-04 12:04:59 -04:00
ife net: sched: ife: check on metadata length 2018-04-22 21:12:00 -04:00
ipv4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2018-05-07 23:56:32 -04:00
ipv6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2018-05-07 23:56:32 -04:00
iucv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
kcm net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
key net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
l2tp l2tp: consistent reference counting in procfs and debufs 2018-04-27 11:06:35 -04:00
l3mdev
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lapb treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
llc llc: fix NULL pointer deref for SOCK_ZAPPED 2018-04-22 14:56:22 -04:00
mac80211 We have a fair number of patches, but many of them are from the 2018-03-29 16:23:26 -04:00
mac802154 net/mac802154: disambiguate mac80215 vs mac802154 trace events 2018-03-28 22:55:18 +02:00
mpls net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ncsi net/ncsi: Refactor MAC, VLAN filters 2018-04-17 13:50:58 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2018-05-06 21:51:37 -04:00
netlabel netlabel: If PF_INET6, check sk_buff ip header version 2018-02-14 14:01:41 -05:00
netlink netlink: fix uninit-value in netlink_sendmsg 2018-04-07 22:32:31 -04:00
netrom net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-19 18:46:11 -05:00
nsh
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openvswitch netfilter: add NAT support for shifted portmap ranges 2018-04-24 10:29:12 +02:00
packet dev: packet: make packet_direct_xmit a common function 2018-05-03 15:55:24 -07:00
phonet net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
psample
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qrtr net: qrtr: Expose tunneling endpoint to user space 2018-04-27 15:06:10 -04:00
rds rds: do not leak kernel memory to user land 2018-05-03 11:26:14 -04:00
rfkill vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
rose net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
rxrpc rxrpc: Fix undefined packet handling 2018-04-04 11:04:08 -04:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-04 09:58:56 -04:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-04 09:58:56 -04:00
smc smc: add support for splice() 2018-05-04 11:45:06 -04:00
strparser strparser: Do not call mod_delayed_work with a timeout of LONG_MAX 2018-04-22 21:09:16 -04:00
sunrpc rpc_pipefs: fix double-dput() 2018-04-15 23:49:27 -04:00
switchdev
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tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-04 09:58:56 -04:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-04 09:58:56 -04:00
unix af_unix: remove redundant lockdep class 2018-04-04 11:13:40 -04:00
vmw_vsock VSOCK: make af_vsock.ko removable again 2018-04-17 09:44:30 -04:00
wimax
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wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2018-03-31 23:33:04 -04:00
x25 net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
xdp xsk: statistics support 2018-05-03 15:55:25 -07:00
xfrm xfrm: use a dedicated slab cache for struct xfrm_state 2018-05-04 10:14:00 +02:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2018-05-07 23:35:08 -04:00
Makefile xsk: add user memory registration support sockopt 2018-05-03 15:55:23 -07:00
compat.c net: support compat 64-bit time in {s,g}etsockopt 2018-04-27 19:46:06 -04:00
socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
sysctl_net.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00