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fib: use indirect call wrappers in the most common fib_rules_ops

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This avoids another inderect call per RX packet which save us around
20-40 ns.

Changelog:

v1 -> v2:
- Move declaraions to fib_rules.h to remove warnings

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Brian Vazquez <brianvv@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brian Vazquez
2020-07-26 15:48:16 -07:00
committed by David S. Miller
parent 608b4adab1
commit b9aaec8f0b
4 changed files with 47 additions and 11 deletions
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12
net/ipv4/fib_rules.c
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@@ -29,6 +29,7 @@
#include <net/ip_fib.h>
#include <net/nexthop.h>
#include <net/fib_rules.h>
#include <linux/indirect_call_wrapper.h>
struct fib4_rule {
struct fib_rule common;
@@ -103,8 +104,9 @@ int __fib_lookup(struct net *net, struct flowi4 *flp,
}
EXPORT_SYMBOL_GPL(__fib_lookup);
static int fib4_rule_action(struct fib_rule *rule, struct flowi *flp,
int flags, struct fib_lookup_arg *arg)
INDIRECT_CALLABLE_SCOPE int fib4_rule_action(struct fib_rule *rule,
struct flowi *flp, int flags,
struct fib_lookup_arg *arg)
{
int err = -EAGAIN;
struct fib_table *tbl;
@@ -138,7 +140,8 @@ static int fib4_rule_action(struct fib_rule *rule, struct flowi *flp,
return err;
}
static bool fib4_rule_suppress(struct fib_rule *rule, struct fib_lookup_arg *arg)
INDIRECT_CALLABLE_SCOPE bool fib4_rule_suppress(struct fib_rule *rule,
struct fib_lookup_arg *arg)
{
struct fib_result *result = (struct fib_result *) arg->result;
struct net_device *dev = NULL;
@@ -169,7 +172,8 @@ suppress_route:
return true;
}
static int fib4_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
INDIRECT_CALLABLE_SCOPE int fib4_rule_match(struct fib_rule *rule,
struct flowi *fl, int flags)
{
struct fib4_rule *r = (struct fib4_rule *) rule;
struct flowi4 *fl4 = &fl->u.ip4;