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net: bridge: Slightly optimize 'find_portno()' 

The 'inuse' bitmap is local to this function. So we can use the
non-atomic '__set_bit()' to save a few cycles.

While at it, also remove some useless {}.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christophe JAILLET 2021-11-14 20:02:35 +01:00 committed by David S. Miller
parent cb3ef7b000
commit cc0be1ad68
1 changed files with 4 additions and 4 deletions
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8
net/bridge/br_if.c
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@ -397,10 +397,10 @@ static int find_portno(struct net_bridge *br)
if (!inuse)
return -ENOMEM;
set_bit(0, inuse); /* zero is reserved */
list_for_each_entry(p, &br->port_list, list) {
set_bit(p->port_no, inuse);
}
__set_bit(0, inuse); /* zero is reserved */
list_for_each_entry(p, &br->port_list, list)
__set_bit(p->port_no, inuse);
index = find_first_zero_bit(inuse, BR_MAX_PORTS);
bitmap_free(inuse);