linux-kernel - Re: Device Driver Etiquette

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Message-ID: <6278d2220706011616k4c0950b0s7155f569935b6e60@mail.gmail.com>
Date:	Sat, 2 Jun 2007 00:16:47 +0100
From:	"Daniel J Blueman" <daniel.blueman@...il.com>
To:	"Matthew Fredrickson" <creslin@...ium.com>
Cc:	"Lee Revell" <rlrevell@...-job.com>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: Re: Device Driver Etiquette

On 1 Jun, 19:40, "Lee Revell" <rlrevell@...-job.com> wrote:
> On 6/1/07, Matthew Fredrickson <creslin@...ium.com> wrote:
>
> > is it acceptable (although
> > not nice) to simply fix it this way, by disabling irqs while it loads
> > the firmware?
>
> I would say to just disable IRQs while loading firmware.  Almost every
> server I maintain has some vendor driver which generates a "many lost
> ticks!" message on load.  As long as it's only done at module load
> time it should be fine.

For anything ~10s or more, you'll probably also need to call the timer
update function to prevent soft lockup warning being generated.

> Of course the best solution is to just get the driver into mainline.
>
> Lee
-- 
Daniel J Blueman
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