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neigh: use NEIGH_VAR_INIT in ndo_neigh_setup functions.

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When ndo_neigh_setup is called, the bitfield used by NEIGH_VAR_SET is
not initialized yet. This might cause confusion for the people who use
NEIGH_VAR_SET in ndo_neigh_setup. So rather introduce NEIGH_VAR_INIT for
usage in ndo_neigh_setup.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2014-01-09 14:13:47 +01:00 committed by David S. Miller
parent d6e2640473
commit 89740ca74f
2 changed files with 7 additions and 2 deletions
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5
include/net/neighbour.h
View File

@ -92,6 +92,11 @@ static inline void neigh_var_set(struct neigh_parms *p, int index, int val)
}
#define NEIGH_VAR(p, attr) ((p)->data[NEIGH_VAR_ ## attr])
/* In ndo_neigh_setup, NEIGH_VAR_INIT should be used.
* In other cases, NEIGH_VAR_SET should be used.
*/
#define NEIGH_VAR_INIT(p, attr, val) (NEIGH_VAR(p, attr) = val)
#define NEIGH_VAR_SET(p, attr, val) neigh_var_set(p, NEIGH_VAR_ ## attr, val)
static inline void neigh_parms_data_state_setall(struct neigh_parms *p)

4
net/802/hippi.c
View File

@ -172,14 +172,14 @@ EXPORT_SYMBOL(hippi_mac_addr);
int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p)
{
/* Never send broadcast/multicast ARP messages */
NEIGH_VAR_SET(p, MCAST_PROBES, 0);
NEIGH_VAR_INIT(p, MCAST_PROBES, 0);
/* In IPv6 unicast probes are valid even on NBMA,
* because they are encapsulated in normal IPv6 protocol.
* Should be a generic flag.
*/
if (p->tbl->family != AF_INET6)
NEIGH_VAR_SET(p, UCAST_PROBES, 0);
NEIGH_VAR_INIT(p, UCAST_PROBES, 0);
return 0;
}
EXPORT_SYMBOL(hippi_neigh_setup_dev);