linux-kernel - Re: [PATCH v3 0/4] Add request_firmware

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Date:	Fri, 15 Nov 2013 16:34:09 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Prarit Bhargava <prarit@...hat.com>,
	Ming Lei <ming.lei@...onical.com>,
	Borislav Petkov <bp@...e.de>, x86@...nel.org,
	amd64-microcode@...64.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] Add request_firmware_direct() for microcode loader

At Tue, 12 Nov 2013 13:02:12 +0100,
Takashi Iwai wrote:
> 
> Hi,
> 
> this is a revised patch series to introduce request_firmware_direct()
> helper for avoiding the lengthy udev issue on microcode loader.
> The original problem was stated in Prarit's post:
>    https://lkml.org/lkml/2013/10/28/221
> 
> In short, microcode loader probes non-existing firmware files (which
> are cases with every new chip), and each probe takes 60 seconds,
> resulting in too long time until completed.
> 
> This solution is simply avoiding the udev fallback in
> request_firmware() explicitly for drivers like microcode.
> 
> Of course, this doesn't mean to throw away further optimizations like
> Prarit's patch.  It can be implemented in parallel with this.
> 
> 
>  [PATCH v3 1/4] firmware: Introduce request_firmware_direct()
>  [PATCH v3 2/4] microcode: Use request_firmware_direct()
>  [PATCH v3 3/4] firmware: Use bit flags instead of boolean combos
>  [PATCH v3 4/4] firmware: Suppress fallback warnings when CONFIG_FW_LOADER_USER_HELPER=n
> 
> v1->v2: Rebased on linux-next, add a fix for a bogus warning message
> v2->v3: Convert to bit flags, fix warning message differently
> 
> 
> Greg, could you take these patches through your driver tree, as
> most of fixes are about the firmware loader itself.

Greg, any chance to take a look at these patches?


thanks,

Takashi
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