linux-kernel - Re: [RFC PATCH 2/2] leds: trigger: implement block trigger

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Date:   Sun, 2 May 2021 23:38:45 -0300
From:   Enzo Matsumiya <ematsumiya@...e.de>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-leds@...r.kernel.org, linux-block@...r.kernel.org,
        u.kleine-koenig@...gutronix.de, Jens Axboe <axboe@...nel.dk>,
        Pavel Machek <pavel@....cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 2/2] leds: trigger: implement block trigger

On 04/30, Randy Dunlap wrote:
>On 4/30/21 11:32 AM, Enzo Matsumiya wrote:
>> diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig
>> index b77a01bd27f4..bead31a19148 100644
>> --- a/drivers/leds/trigger/Kconfig
>> +++ b/drivers/leds/trigger/Kconfig
>> @@ -153,4 +153,14 @@ config LEDS_TRIGGER_TTY
>>
>>  	  When build as a module this driver will be called ledtrig-tty.
>>
>> +config LEDS_TRIGGER_BLOCK
>> +	tristate "LED Block Device Trigger"
>> +	depends on BLOCK
>> +	default m
>
>Drop the "default m". We don't enable drivers (even to build modules)
>unless they are necessary, e.g., for booting.
>
>> +	help
>> +	  This allows LEDs to be controlled by block device activity.
>> +	  This trigger doesn't require the lower level drivers to have any
>> +	  instrumentation. The activity is collected by polling the disk stats.
>> +	  If unsure, say Y.
>> +
>>  endif # LEDS_TRIGGERS
>
>thanks.
>-- 
>~Randy

Thanks, will do in v2.


Cheers,

Enzo