From: Andrew Lunn <andrew@lunn.ch>
To: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
davem@davemloft.net, kuba@kernel.org,
Kurt Kanzenbach <kurt@linutronix.de>,
netdev@vger.kernel.org, sasha.neftin@intel.com,
vitaly.lifshits@intel.com, vinicius.gomes@intel.com,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>,
"linux-leds@vger.kernel.org" <linux-leds@vger.kernel.org>
Subject: Re: [PATCH net-next 5/5] igc: Export LEDs
Date: Wed, 21 Jul 2021 16:35:27 +0200 [thread overview]
Message-ID: <YPgwr2MB5gQVgDff@lunn.ch> (raw)
In-Reply-To: <3b7ad100-643e-c173-0d43-52e65d41c8c3@gmail.com>
> Thanks for the hint, Andrew. If I make &netdev->dev the parent,
> then I get:
>
> ll /sys/class/leds/
> total 0
> lrwxrwxrwx 1 root root 0 Jul 20 21:37 led0 -> ../../devices/pci0000:00/0000:00:1d.0/0000:03:00.0/net/enp3s0/led0
> lrwxrwxrwx 1 root root 0 Jul 20 21:37 led1 -> ../../devices/pci0000:00/0000:00:1d.0/0000:03:00.0/net/enp3s0/led1
> lrwxrwxrwx 1 root root 0 Jul 20 21:37 led2 -> ../../devices/pci0000:00/0000:00:1d.0/0000:03:00.0/net/enp3s0/led2
>
> Now the (linked) LED devices are under /sys/class/net/<ifname>, but still
> the primary LED devices are under /sys/class/leds and their names have
> to be unique therefore. The LED subsystem takes care of unique names,
> but in case of a second network interface the LED device name suddenly
> would be led0_1 (IIRC). So the names wouldn't be predictable, and I think
> that's not what we want.
We need input from the LED maintainers, but do we actually need the
symbolic links in /sys/class/leds/? For this specific use case, not
generally. Allow an LED to opt out of the /sys/class/leds symlink.
If we could drop those, we can relax the naming requirements so that
the names is unique to a parent device, not globally unique.
Andrew
next prev parent reply other threads:[~2021-07-21 14:35 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210716212427.821834-1-anthony.l.nguyen@intel.com>
[not found] ` <20210716212427.821834-6-anthony.l.nguyen@intel.com>
[not found] ` <f705bcd6-c55c-0b07-612f-38348d85bbee@gmail.com>
[not found] ` <YPTKB0HGEtsydf9/@lunn.ch>
2021-07-20 15:00 ` [PATCH net-next 5/5] igc: Export LEDs Heiner Kallweit
2021-07-20 15:42 ` Andrew Lunn
2021-07-20 20:29 ` Heiner Kallweit
2021-07-21 14:35 ` Andrew Lunn [this message]
2021-07-21 16:02 ` Heiner Kallweit
2021-07-21 18:23 ` Pavel Machek
2021-07-21 18:25 ` Pavel Machek
2021-07-21 18:45 ` Marek Behún
2021-07-21 19:50 ` Andrew Lunn
2021-07-21 20:07 ` Marek Behún
2021-07-21 20:54 ` Andrew Lunn
2021-07-21 21:31 ` Marek Behún
2021-07-21 22:45 ` Pavel Machek
2021-07-22 1:45 ` Andrew Lunn
2021-07-22 2:19 ` Marek Behún
2021-07-21 22:34 ` Pavel Machek
2021-07-22 3:52 ` Florian Fainelli
2021-07-26 17:42 ` Jacek Anaszewski
2021-07-26 18:44 ` Marek Behún
2021-07-26 20:59 ` Heiner Kallweit
2021-07-27 0:06 ` Marek Behún
2021-07-27 1:57 ` Andrew Lunn
2021-07-27 8:15 ` Michael Walle
2021-07-27 14:56 ` Marek Behún
2021-07-27 15:03 ` Michael Walle
2021-07-27 15:24 ` Andrew Lunn
2021-07-27 15:28 ` Marek Behún
2021-07-27 15:53 ` Michael Walle
2021-07-27 16:23 ` Andrew Lunn
2021-07-27 16:32 ` Marek Behún
2021-07-27 16:42 ` Andrew Lunn
2021-07-27 19:42 ` Michael Walle
2021-07-28 20:43 ` Heiner Kallweit
2021-07-29 6:39 ` Kurt Kanzenbach
2021-07-29 8:59 ` Marek Behún
2021-07-29 21:54 ` Heiner Kallweit
2021-08-10 17:29 ` Pavel Machek
2021-08-10 17:55 ` Marek Behún
2021-08-10 19:53 ` Pavel Machek
2021-08-10 20:53 ` Marek Behún
2021-08-17 19:02 ` Pavel Machek
2021-08-25 15:26 ` Marek Behún
2021-08-26 12:45 ` Pavel Machek
2021-08-10 20:46 ` Heiner Kallweit
2021-08-10 21:21 ` Andrew Lunn
2021-07-27 13:55 ` Marek Behún
2021-08-10 17:22 ` Documentation for naming LEDs was " Pavel Machek
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