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netfilter: nft_fib: Convert nft_fib4_eval to new dev helper

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Convert nft_fib4_eval to the new device checking helper and
remove the duplicate code.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-09-20 13:50:49 -07:00 committed by David S. Miller
parent 91a178258a
commit 9f18b6b68e
1 changed files with 6 additions and 21 deletions
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27
net/ipv4/netfilter/nft_fib_ipv4.c
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@ -76,10 +76,7 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
.flowi4_iif = LOOPBACK_IFINDEX,
};
const struct net_device *oif;
struct net_device *found;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
int i;
#endif
const struct net_device *found;
/*
* Do not set flowi4_oif, it restricts results (for example, asking
@ -146,25 +143,13 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
if (!oif) {
found = FIB_RES_DEV(res);
goto ok;
}
} else {
if (!fib_info_nh_uses_dev(res.fi, oif))
return;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
for (i = 0; i < res.fi->fib_nhs; i++) {
struct fib_nh *nh = &res.fi->fib_nh[i];
if (nh->nh_dev == oif) {
found = nh->nh_dev;
goto ok;
}
found = oif;
}
return;
#else
found = FIB_RES_DEV(res);
if (found != oif)
return;
#endif
ok:
switch (priv->result) {
case NFT_FIB_RESULT_OIF:
*dest = found->ifindex;