linux-kernel - Re: [PATCH] ALSA: hda - HDMI Audio init all connectors

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Date:	Thu, 07 Jun 2012 10:00:24 +0100
From:	Steven Newbury <steve@...wbury.org.uk>
To:	Takashi Iwai <tiwai@...e.de>
CC:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH] ALSA: hda - HDMI Audio init all connectors

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On 07/06/12 09:47, Takashi Iwai wrote:
> At the next time you submit a patch, please add Cc to maintainer
> and subsystem ML.  Otherwise it'd be easily overlooked.
> 
I meant to, somehow I managed to send it off before adding the CC,
probably too early in the morning!

> At Thu, 07 Jun 2012 06:52:59 +0100, Steven Newbury wrote:
>> 
>> When VGA_SWITCHEROO support is enabled hda_intel initialises the
>> HDMI audio device on the current VGA device.  When it's not
>> enabled it only initialises the HDMI device on the default VGA
>> adaptor, this means secondary cards get no audio support which is
>> very unhelpful for multi-seat!
>> 
>> With this patch, when SUPPORT_VGA_SWITCHEROO is disabled
>> hda_intel initialises all HDMI audio devices, not just the
>> default VGA.
>> 
>> Signed-off-by: Steven Newbury <steve@...wbury.org.uk>
> 
> OK, it must be fixed indeed.  The bug was introduced due to the
> change in VGA-switcheroo side -- originally check_hdmi_disabled()
> really checked the VGA-switcheroo state, so it returned the correct
> value in the earlier version.
> 
> In anyway, your patch looks almost OK, but it'd be better to move 
> ifdef and simplify like below.  Could you check whether it works
> for you?
> 
Looks better, saves the pointless function call. I'll give it spin on
my next boot.

> Also, please give a patch that is applicable directly via git-am. 
> Apparently you created it via git show.  Instead, use
> git-format-patch or use --pretty=email for git-show.  Or, send the
> patch directly via git-send-email.
> 
I think it's the first time I've attempted to send a complete patch to
LKML (in the git era at least), rather than just a one-liner.  Thanks
for the tips, hopefully I'll get it right next time! :)
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