From f62457df5cc46ea0729fface07ffa885e85ef404 Mon Sep 17 00:00:00 2001 From: Matt Johnston Date: Fri, 25 Feb 2022 13:39:36 +0800 Subject: [PATCH] mctp: Avoid warning if unregister notifies twice Previously if an unregister notify handler ran twice (waiting for netdev to be released) it would print a warning in mctp_unregister() every subsequent time the unregister notify occured. Instead we only need to worry about the case where a mctp_ptr is set on an unknown device type. Signed-off-by: Matt Johnston Signed-off-by: Jakub Kicinski --- net/mctp/device.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/mctp/device.c b/net/mctp/device.c index da13444c632b..f49be882e98e 100644 --- a/net/mctp/device.c +++ b/net/mctp/device.c @@ -428,10 +428,10 @@ static void mctp_unregister(struct net_device *dev) struct mctp_dev *mdev; mdev = mctp_dev_get_rtnl(dev); - if (mctp_known(dev) != (bool)mdev) { + if (mdev && !mctp_known(dev)) { // Sanity check, should match what was set in mctp_register - netdev_warn(dev, "%s: mdev pointer %d but type (%d) match is %d", - __func__, (bool)mdev, mctp_known(dev), dev->type); + netdev_warn(dev, "%s: BUG mctp_ptr set for unknown type %d", + __func__, dev->type); return; } if (!mdev) @@ -455,7 +455,7 @@ static int mctp_register(struct net_device *dev) if (mdev) { if (!mctp_known(dev)) - netdev_warn(dev, "%s: mctp_dev set for unknown type %d", + netdev_warn(dev, "%s: BUG mctp_ptr set for unknown type %d", __func__, dev->type); return 0; } -- 2.39.5