linux-kernel - Re: [PATCH] blink: Only blink when parameter is set

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Date:	Sun, 17 Jun 2007 21:26:01 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Bernhard Walle <bwalle@...e.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...e.de>
Subject: Re: [PATCH] blink: Only blink when parameter is set

On Sun, 17 Jun 2007 10:39:04 +0200 Bernhard Walle wrote:

> This patch in the blink driver changes the module to only blink when
> the parameter 'blink' is set to true. This is to allow the module to
> be compiled in the kernel and not as module.
> 
> As the blink module was initially written for kdump, and as the kernel
> is relocatable on lots of architectures, there's no need to compile a
> separate kdump kernel. The blinking can now enabled via the boot
> command line for the kdump kernel when necessary.
> 
> The patch also adds some author/license information and marks the init
> function as '__init'.
> 
> Signed-off-by: Bernhard Walle <bwalle@...e.de>
> 
> ---
>  drivers/misc/blink.c |   13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> --- a/drivers/misc/blink.c
> +++ b/drivers/misc/blink.c
> @@ -3,6 +3,10 @@
>  #include <linux/timer.h>
>  #include <linux/jiffies.h>
>  
> +static int blink = 0;

no need to init to 0.

> +module_param(blink, bool, S_IRUGO);
> +MODULE_PARM_DESC(blink, "Enable blinking (without that, the module does nothing)\n");

unneeded "\n"

---
~Randy
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