aboutsummaryrefslogtreecommitdiffstats
path: root/include/net/flow.h
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2011-03-31 04:52:14 -0700
committerDavid S. Miller <davem@davemloft.net>2011-03-31 04:52:14 -0700
commit83229aa5e2c242163599266a686483e3b91ec07e (patch)
treee4dad24604077a6ca1cd1542e3d3de8b6365cedc /include/net/flow.h
parentfib: add __rcu annotations (diff)
downloadlinux-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/net/flow.h')
-rw-r--r--include/net/flow.h21
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