[PATCH 47/47] netfilter: ipset: Use is_zero_ether_addr instead of static and memcmp
flat view
STALE3121d
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: 2018-03-30 11:46:37
Also in:
netfilter-devel
Subsystem:
netfilter, networking [general], the rest · Maintainers:
Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Joe Perches <joe@perches.com> To make the test a bit clearer and to reduce object size a little. Miscellanea: o remove now unnecessary static const array $ size ip_set_hash_mac.o* text data bss dec hex filename 22822 4619 64 27505 6b71 ip_set_hash_mac.o.allyesconfig.new 22932 4683 64 27679 6c1f ip_set_hash_mac.o.allyesconfig.old 10443 1040 0 11483 2cdb ip_set_hash_mac.o.defconfig.new 10507 1040 0 11547 2d1b ip_set_hash_mac.o.defconfig.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- net/netfilter/ipset/ip_set_hash_mac.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/netfilter/ipset/ip_set_hash_mac.c b/net/netfilter/ipset/ip_set_hash_mac.c
index 8f004edad396..f9d5a2a1e3d0 100644
--- a/net/netfilter/ipset/ip_set_hash_mac.c
+++ b/net/netfilter/ipset/ip_set_hash_mac.c@@ -72,9 +72,6 @@ hash_mac4_data_next(struct hash_mac4_elem *next, #define IP_SET_PROTO_UNDEF #include "ip_set_hash_gen.h" -/* Zero valued element is not supported */ -static const unsigned char invalid_ether[ETH_ALEN] = { 0 }; - static int hash_mac4_kadt(struct ip_set *set, const struct sk_buff *skb, const struct xt_action_param *par,
@@ -93,7 +90,7 @@ hash_mac4_kadt(struct ip_set *set, const struct sk_buff *skb, return -EINVAL; ether_addr_copy(e.ether, eth_hdr(skb)->h_source); - if (memcmp(e.ether, invalid_ether, ETH_ALEN) == 0) + if (is_zero_ether_addr(e.ether)) return -EINVAL; return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); }
@@ -118,7 +115,7 @@ hash_mac4_uadt(struct ip_set *set, struct nlattr *tb[], if (ret) return ret; ether_addr_copy(e.ether, nla_data(tb[IPSET_ATTR_ETHER])); - if (memcmp(e.ether, invalid_ether, ETH_ALEN) == 0) + if (is_zero_ether_addr(e.ether)) return -IPSET_ERR_HASH_ELEM; return adtfn(set, &e, &ext, &ext, flags);
--
2.11.0