From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Thu, 10 May 2018 13:21:01 +0200 Subject: [PATCH v3 1/3] leds: triggers: provide led_trigger_register_format() In-Reply-To: <20180508100543.12559-2-u.kleine-koenig@pengutronix.de> References: <20180508100543.12559-1-u.kleine-koenig@pengutronix.de> <20180508100543.12559-2-u.kleine-koenig@pengutronix.de> Message-ID: <20180510112101.GD6977@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi! > This allows one to simplify drivers that provide a trigger with a > non-constant name (e.g. one trigger per device with the trigger name > depending on the device's name). > > Internally the memory the name member of struct led_trigger points to > now always allocated dynamically instead of just taken from the caller. > > The function led_trigger_rename_static() must be changed accordingly and > was renamed to led_trigger_rename() for consistency, with the only user > adapted. Well, I'm not sure if we want to have _that_ many trigger. Trigger interface is going to become.. "interesting". We have 4K limit on total number of triggers. We use rather strange interface to select trigger. > @@ -115,13 +115,13 @@ static int can_led_notifier(struct notifier_block *nb, unsigned long msg, > > if (msg == NETDEV_CHANGENAME) { > snprintf(name, sizeof(name), "%s-tx", netdev->name); > - led_trigger_rename_static(name, priv->tx_led_trig); > + led_trigger_rename(priv->tx_led_trig, name); > > snprintf(name, sizeof(name), "%s-rx", netdev->name); > - led_trigger_rename_static(name, priv->rx_led_trig); > + led_trigger_rename(priv->rx_led_trig, name); > > snprintf(name, sizeof(name), "%s-rxtx", netdev->name); > - led_trigger_rename_static(name, priv->rxtx_led_trig); > + led_trigger_rename(priv->rxtx_led_trig, name); > } > I know this is not your fault, but if you have a space or "[]" in netdev names, confusing things will happen. I believe we should have triggers "net-rx, net-tx" and it should have parameter "which device it acts on". Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: