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netfilter: ebt_stp: Use generic functions for comparisons 

Instead of unnecessary const declarations, use the generic functions to
save a little object space.

$ size net/bridge/netfilter/ebt_stp.o*
   text	   data	    bss	    dec	    hex	filename
   1250	    144	      0	   1394	    572	net/bridge/netfilter/ebt_stp.o.new
   1344	    144	      0	   1488	    5d0	net/bridge/netfilter/ebt_stp.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Joe Perches 2018-03-21 04:03:22 -07:00 committed by Pablo Neira Ayuso
parent 19b351f16f
commit 9124a20d87
1 changed files with 2 additions and 4 deletions
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6
net/bridge/netfilter/ebt_stp.c
View File

@ -153,8 +153,6 @@ ebt_stp_mt(const struct sk_buff *skb, struct xt_action_param *par)
static int ebt_stp_mt_check(const struct xt_mtchk_param *par)
{
const struct ebt_stp_info *info = par->matchinfo;
const u8 bridge_ula[6] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x00};
const u8 msk[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
const struct ebt_entry *e = par->entryinfo;
if (info->bitmask & ~EBT_STP_MASK || info->invflags & ~EBT_STP_MASK ||
@ -162,8 +160,8 @@ static int ebt_stp_mt_check(const struct xt_mtchk_param *par)
return -EINVAL;
/* Make sure the match only receives stp frames */
if (!par->nft_compat &&
(!ether_addr_equal(e->destmac, bridge_ula) ||
!ether_addr_equal(e->destmsk, msk) ||
(!ether_addr_equal(e->destmac, eth_stp_addr) ||
!is_broadcast_ether_addr(e->destmsk) ||
!(e->bitmask & EBT_DESTMAC)))
return -EINVAL;