linux-kernel - Re: [PATCH AUTOSEL 5.4 034/134] leds: trigger: netdev: fix handling on interface rename

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Message-ID: <20191214084331.GD16834@duo.ucw.cz>
Date:   Sat, 14 Dec 2019 09:43:31 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Martin Schiller <ms@....tdt.de>, linux-leds@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.4 034/134] leds: trigger: netdev: fix handling
 on interface rename

On Wed 2019-12-11 10:10:10, Sasha Levin wrote:
> From: Martin Schiller <ms@....tdt.de>
> 
> [ Upstream commit 5f820ed52371b4f5d8c43c93f03408d0dbc01e5b ]
> 
> The NETDEV_CHANGENAME code is not "unneeded" like it is stated in commit
> 4cb6560514fa ("leds: trigger: netdev: fix refcnt leak on interface
> rename").
> 
> The event was accidentally misinterpreted equivalent to
> NETDEV_UNREGISTER, but should be equivalent to NETDEV_REGISTER.
> 
> This was the case in the original code from the openwrt project.
> 
> Otherwise, you are unable to set netdev led triggers for (non-existent)
> netdevices, which has to be renamed. This is the case, for example, for
> ppp interfaces in openwrt.

Please drop.
								Pavel
								
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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