4.17-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ido Schimmel <idosch@xxxxxxxxxxxx>
[ Upstream commit 6290182b2b3bda119ecb243fb3d6bcc98a74344f ]
Since commit 9776d32537d2 ("net: Move call_fib_rule_notifiers up in
fib_nl_newrule") it is possible to forbid the installation of
unsupported FIB rules.
Have mlxsw return an error for non-default FIB rules in addition to the
existing extack message.
Example:
# ip rule add from 198.51.100.1 table 10
Error: mlxsw_spectrum: FIB rules not supported.
Note that offload is only aborted when non-default FIB rules are already
installed and merely replayed during module initialization.
Signed-off-by: Ido Schimmel <idosch@xxxxxxxxxxxx>
Acked-by: David Ahern <dsahern@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -5882,24 +5882,24 @@ static int mlxsw_sp_router_fib_rule_even
switch (info->family) {
case AF_INET:
if (!fib4_rule_default(rule) && !rule->l3mdev)
- err = -1;
+ err = -EOPNOTSUPP;
break;
case AF_INET6:
if (!fib6_rule_default(rule) && !rule->l3mdev)
- err = -1;
+ err = -EOPNOTSUPP;
break;
case RTNL_FAMILY_IPMR:
if (!ipmr_rule_default(rule) && !rule->l3mdev)
- err = -1;
+ err = -EOPNOTSUPP;
break;
case RTNL_FAMILY_IP6MR:
if (!ip6mr_rule_default(rule) && !rule->l3mdev)
- err = -1;
+ err = -EOPNOTSUPP;
break;
}
if (err < 0)
- NL_SET_ERR_MSG_MOD(extack, "FIB rules not supported. Aborting offload");
+ NL_SET_ERR_MSG_MOD(extack, "FIB rules not supported");
return err;
}
@@ -5926,8 +5926,8 @@ static int mlxsw_sp_router_fib_event(str
case FIB_EVENT_RULE_DEL:
err = mlxsw_sp_router_fib_rule_event(event, info,
router->mlxsw_sp);
- if (!err)
- return NOTIFY_DONE;
+ if (!err || info->extack)
+ return notifier_from_errno(err);
}
fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC);
