diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-30 19:00:53 +0000 |
|---|---|---|
| committer | Ziyann <jaraidaniel@gmail.com> | 2014-11-20 17:18:25 +0100 |
| commit | 426ae89532eaba233c2a46795f5d480081934e97 (patch) | |
| tree | 064458a1941aa134d5796e424b7f90a943cdc9b4 /include | |
| parent | 5532d918d7beae46cc86a9003f91645224c7dc91 (diff) | |
| download | kernel_samsung_tuna-426ae89532eaba233c2a46795f5d480081934e97.zip kernel_samsung_tuna-426ae89532eaba233c2a46795f5d480081934e97.tar.gz kernel_samsung_tuna-426ae89532eaba233c2a46795f5d480081934e97.tar.bz2 | |
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.
Change-Id: Iad9c8fd9121ec84c2599b013badaebba92db7c39
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/flow.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/net/flow.h b/include/net/flow.h index e37cfda..3a4e76e 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -59,8 +59,11 @@ struct flowi4 { #define flowi4_proto __fl_common.flowic_proto #define flowi4_flags __fl_common.flowic_flags #define flowi4_secid __fl_common.flowic_secid - __be32 daddr; + + /* (saddr,daddr) must be grouped, same order as in IP header */ __be32 saddr; + __be32 daddr; + union flowi_uli uli; #define fl4_sport uli.ports.sport #define fl4_dport uli.ports.dport |