netdev - Re: [PATCH] Add a network activity LED trigger

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Date:	Wed, 18 Jul 2007 15:33:57 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Florian Fainelli <florian.fainelli@...ecomint.eu>
CC:	netdev@...r.kernel.org, rpurdie@...ys.net
Subject: Re: [PATCH] Add a network activity LED trigger

Florian Fainelli wrote:
> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> index 87d2046..fdc5a8a 100644
> --- a/drivers/leds/Kconfig
> +++ b/drivers/leds/Kconfig
> @@ -128,5 +128,12 @@ config LEDS_TRIGGER_HEARTBEAT
>  	  load average.
>  	  If unsure, say Y.
>  
> +config LEDS_TRIGGER_NETWORK_ACT
> +	tristate "LED Network Activity Trigger"


Module isn't possible, you call the led trigger from net/core/dev.c.


> diff --git a/net/core/dev.c b/net/core/dev.c
> index ee051bb..a3a4115 100644
> --- a/net/core/dev.c
> +++ b/net/core/dev.c
> @@ -117,6 +117,7 @@
>  #include <linux/err.h>
>  #include <linux/ctype.h>
>  #include <linux/if_arp.h>
> +#include <linux/leds.h>
>  
>  /*
>   *	The list of packet types we will receive (as opposed to discard)
> @@ -1523,6 +1524,7 @@ gso:
>  	 * stops preemption for RCU.
>  	 */
>  	rcu_read_lock_bh();
> +	ledtrig_network_activity();


Besides missing a declaration and not linking without the network
LED config option, its pretty ridiculous to call this for every
packet just to make a led blink.

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