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net: use indirect call helpers for dst_mtu

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This patch avoids the indirect call for the common case:
ip6_mtu and ipv4_mtu

Signed-off-by: Brian Vazquez <brianvv@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Brian Vazquez
2021-02-01 17:41:31 +00:00
committed by Jakub Kicinski
parent 6585d7dc49
commit f67fbeaebd
3 changed files with 11 additions and 5 deletions
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4
include/net/dst.h
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@ -194,9 +194,11 @@ dst_feature(const struct dst_entry *dst, u32 feature)
return dst_metric(dst, RTAX_FEATURES) & feature;
}
INDIRECT_CALLABLE_DECLARE(unsigned int ip6_mtu(const struct dst_entry *));
INDIRECT_CALLABLE_DECLARE(unsigned int ipv4_mtu(const struct dst_entry *));
static inline u32 dst_mtu(const struct dst_entry *dst)
{
return dst->ops->mtu(dst);
return INDIRECT_CALL_INET(dst->ops->mtu, ip6_mtu, ipv4_mtu, dst);
}
/* RTT metrics are stored in milliseconds for user ABI, but used as jiffies */