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Add dst_feature to query route entry features

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Adding an accessor to existing  dst_entry feautres field and
refactor the only supported feature (allfrag) to use it.

Signed-off-by: Gilad Ben-Yossef <gilad@codefidence.com>
Sigend-off-by: Ori Finkelman <ori@comsleep.com>
Sigend-off-by: Yony Amit <yony@comsleep.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gilad Ben-Yossef 2009-10-28 04:15:23 +00:00 committed by David S. Miller
parent 022c3f7d82
commit 0c3adfb8ec
1 changed files with 7 additions and 1 deletions
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8
include/net/dst.h
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@ -111,6 +111,12 @@ dst_metric(const struct dst_entry *dst, int metric)
return dst->metrics[metric-1];
}
static inline u32
dst_feature(const struct dst_entry *dst, u32 feature)
{
return dst_metric(dst, RTAX_FEATURES) & feature;
}
static inline u32 dst_mtu(const struct dst_entry *dst)
{
u32 mtu = dst_metric(dst, RTAX_MTU);
@ -136,7 +142,7 @@ static inline void set_dst_metric_rtt(struct dst_entry *dst, int metric,
static inline u32
dst_allfrag(const struct dst_entry *dst)
{
int ret = dst_metric(dst, RTAX_FEATURES) & RTAX_FEATURE_ALLFRAG;
int ret = dst_feature(dst, RTAX_FEATURE_ALLFRAG);
/* Yes, _exactly_. This is paranoia. */
barrier();
return ret;