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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-30 19:00:53 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-12-01 13:28:54 -0500 |
| commit | 84f9307c5da84a7c8513e7607dc8427d2cbd63e3 (patch) | |
| tree | f34fb0525284d97e2b10870afd8e021cc45ef44c /init | |
| parent | dccp: Evaluate ip_hdr() only once in dccp_v4_route_skb(). (diff) | |
| download | linux-dev-84f9307c5da84a7c8513e7607dc8427d2cbd63e3.tar.xz linux-dev-84f9307c5da84a7c8513e7607dc8427d2cbd63e3.zip | |
ipv4: use a 64bit load/store in output path
gcc compiler is smart enough to use a single load/store if we
memcpy(dptr, sptr, 8) on x86_64, regardless of
CONFIG_CC_OPTIMIZE_FOR_SIZE
In IP header, daddr immediately follows saddr, this wont change in the
future. We only need to make sure our flowi4 (saddr,daddr) fields wont
break the rule.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions