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Message-ID: <20230518121232.GG404509@google.com> Date: Thu, 18 May 2023 13:12:32 +0100 From: Lee Jones <lee@...nel.org> To: Hans de Goede <hdegoede@...hat.com> Cc: Pavel Machek <pavel@....cz>, Jacek Anaszewski <jacek.anaszewski@...il.com>, Sebastian Reichel <sre@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Michael Grzeschik <m.grzeschik@...gutronix.de>, Johannes Berg <johannes@...solutions.net>, Pablo Neira Ayuso <pablo@...filter.org>, Jozsef Kadlecsik <kadlec@...filter.org>, linux-leds@...r.kernel.org, linux-pm@...r.kernel.org, linux-usb@...r.kernel.org, netdev@...r.kernel.org, netfilter-devel@...r.kernel.org, coreteam@...filter.org, Yauhen Kharuzhy <jekhor@...il.com> Subject: Re: [PATCH RESEND 1/4] leds: Change led_trigger_blink[_oneshot]() delay parameters to pass-by-value On Wed, 10 May 2023, Hans de Goede wrote: > led_blink_set[_oneshot]()'s delay_on and delay_off function parameters > are pass by reference, so that hw-blink implementations can report > back the actual achieved delays when the values have been rounded > to something the hw supports. > > This is really only interesting for the sysfs API / the timer trigger. > Other triggers don't really care about this and none of the callers of > led_trigger_blink[_oneshot]() do anything with the returned delay values. > > Change the led_trigger_blink[_oneshot]() delay parameters to pass-by-value, > there are 2 reasons for this: > > 1. led_cdev->blink_set() may sleep, while led_trigger_blink() may not. > So on hw where led_cdev->blink_set() sleeps the call needs to be deferred > to a workqueue, in which case the actual achieved delays are unknown > (this is a preparation patch for the deferring). > > 2. Since the callers don't care about the actual achieved delays, allowing > callers to directly pass a value leads to simpler code for most callers. > > Reviewed-by: Jacek Anaszewski <jacek.anaszewski@...il.com> > Tested-by: Yauhen Kharuzhy <jekhor@...il.com> > Signed-off-by: Hans de Goede <hdegoede@...hat.com> > --- > drivers/leds/led-triggers.c | 16 ++++++++-------- > drivers/leds/trigger/ledtrig-disk.c | 9 +++------ > drivers/leds/trigger/ledtrig-mtd.c | 8 ++------ > drivers/net/arcnet/arcnet.c | 8 ++------ > drivers/power/supply/power_supply_leds.c | 5 +---- > drivers/usb/common/led.c | 4 +--- > include/linux/leds.h | 16 ++++++++-------- > net/mac80211/led.c | 2 +- > net/mac80211/led.h | 8 ++------ > net/netfilter/xt_LED.c | 3 +-- > 10 files changed, 29 insertions(+), 50 deletions(-) Applied, thanks -- Lee Jones [李琼斯]
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