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ipv6: mcast: reduce ipv6_chk_mcast_addr() indentation

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Add a label and two gotos to shorten lines by two tabulations,
to ease code review of following patches.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20241210183352.86530-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2024-12-10 18:33:50 +00:00 committed by Jakub Kicinski
parent 91a91aacc5
commit d51cfd5f4f
1 changed files with 22 additions and 20 deletions
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42
net/ipv6/mcast.c
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@ -1021,29 +1021,31 @@ bool ipv6_chk_mcast_addr(struct net_device *dev, const struct in6_addr *group,
rcu_read_lock(); rcu_read_lock();
idev = __in6_dev_get(dev); idev = __in6_dev_get(dev);
if (idev) { if (!idev)
for_each_mc_rcu(idev, mc) { goto unlock;
if (ipv6_addr_equal(&mc->mca_addr, group)) for_each_mc_rcu(idev, mc) {
if (ipv6_addr_equal(&mc->mca_addr, group))
break;
}
if (!mc)
goto unlock;
if (src_addr && !ipv6_addr_any(src_addr)) {
struct ip6_sf_list *psf;
for_each_psf_rcu(mc, psf) {
if (ipv6_addr_equal(&psf->sf_addr, src_addr))
break; break;
} }
if (mc) { if (psf)
if (src_addr && !ipv6_addr_any(src_addr)) { rv = psf->sf_count[MCAST_INCLUDE] ||
struct ip6_sf_list *psf; psf->sf_count[MCAST_EXCLUDE] !=
mc->mca_sfcount[MCAST_EXCLUDE];
for_each_psf_rcu(mc, psf) { else
if (ipv6_addr_equal(&psf->sf_addr, src_addr)) rv = mc->mca_sfcount[MCAST_EXCLUDE] != 0;
break; } else {
} rv = true; /* don't filter unspecified source */
if (psf)
rv = psf->sf_count[MCAST_INCLUDE] ||
psf->sf_count[MCAST_EXCLUDE] !=
mc->mca_sfcount[MCAST_EXCLUDE];
else
rv = mc->mca_sfcount[MCAST_EXCLUDE] != 0;
} else
rv = true; /* don't filter unspecified source */
}
} }
unlock:
rcu_read_unlock(); rcu_read_unlock();
return rv; return rv;
} }