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| author |   David S. Miller <davem@davemloft.net> | 2011-03-31 04:52:14 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-31 04:52:14 -0700 |
| commit | 83229aa5e2c242163599266a686483e3b91ec07e (patch) | |
| tree | e4dad24604077a6ca1cd1542e3d3de8b6365cedc /include | |
| parent | fib: add __rcu annotations (diff) | |
| download | linux-dev-83229aa5e2c242163599266a686483e3b91ec07e.tar.xz linux-dev-83229aa5e2c242163599266a686483e3b91ec07e.zip | |
net: Add helper flowi4_init_output().
On-stack initialization via assignment of flow structures are
expensive because GCC emits a memset() to clear the entire
structure out no matter what.
Add a helper for ipv4 output flow key setup which we can use to avoid
the memset.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/flow.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/flow.h b/include/net/flow.h index 7fe5a0f9483a..37e77d66f78c 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -70,6 +70,27 @@ struct flowi4 { #define fl4_gre_key uli.gre_key }; +static inline void flowi4_init_output(struct flowi4 *fl4, int oif, + __u32 mark, __u8 tos, __u8 scope, + __u8 proto, __u8 flags, + __be32 daddr, __be32 saddr, + __be16 dport, __be32 sport) +{ + fl4->flowi4_oif = oif; + fl4->flowi4_iif = 0; + fl4->flowi4_mark = mark; + fl4->flowi4_tos = tos; + fl4->flowi4_scope = scope; + fl4->flowi4_proto = proto; + fl4->flowi4_flags = flags; + fl4->flowi4_secid = 0; + fl4->daddr = daddr; + fl4->saddr = saddr; + fl4->fl4_sport = sport; + fl4->fl4_dport = dport; +} + + struct flowi6 { struct flowi_common __fl_common; #define flowi6_oif __fl_common.flowic_oif |