From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Mon, 21 May 2018 22:12:50 -0700
Subject: devlink: don't take instance lock around eswitch mode set
Patch-mainline: v4.18-rc1
Git-commit: 7ac1cc9aef00942cbae01ff39bfc0a93199741e2
References: bsc#1109837
Changing switch mode may want to register and unregister devlink
ports. Therefore similarly to DEVLINK_CMD_PORT_SPLIT/UNSPLIT it
should not take the instance lock. Drivers don't depend on existing
locking since it's a very recent addition.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/core/devlink.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -2756,7 +2756,8 @@ static const struct genl_ops devlink_nl_
.doit = devlink_nl_cmd_eswitch_set_doit,
.policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_DPIPE_TABLE_GET,