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net: Add extack argument to ndo_fdb_add()

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Drivers may not be able to support certain FDB entries, and an error
code is insufficient to give clear hints as to the reasons of rejection.

In order to make it possible to communicate the rejection reason, extend
ndo_fdb_add() with an extack argument. Adapt the existing
implementations of ndo_fdb_add() to take the parameter (and ignore it).
Pass the extack parameter when invoking ndo_fdb_add() from rtnl_fdb_add().

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata
2019-01-16 23:06:50 +00:00
committed by David S. Miller
parent 1cdc98c271
commit 87b0984ebf
14 changed files with 31 additions and 16 deletions
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3
drivers/net/ethernet/intel/igb/igb_main.c
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@ -2486,7 +2486,8 @@ static int igb_set_features(struct net_device *netdev,
static int igb_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *dev,
const unsigned char *addr, u16 vid,
u16 flags)
u16 flags,
struct netlink_ext_ack *extack)
{
/* guarantee we can provide a unique filter for the unicast address */
if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) {