linux-kernel - Re: [PATCH] add consts where appropriate in sound/pci/hda/*

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Message-ID: <s5habrlfw4q.wl%tiwai@suse.de>
Date:	Mon, 17 Sep 2007 12:01:57 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] add consts where appropriate in sound/pci/hda/*

At Fri, 14 Sep 2007 18:48:05 +0100,
Denys Vlasenko wrote:
> 
> Hi Takashi,
> 
> There is a lot of data structures in that code,
> and most of them seems to be read-only.
> 
> I added const modifiers to most of such places:
> 
>    text    data     bss     dec     hex filename
>  106315  179564      36  285915   45cdb snd-hda-intel.o
>  283051    2624      36  285711   45c0f snd-hda-intel_patched.o
> 
> Patch is attached.
> 
> It moves "static struct hda_codec_preset *hda_preset_tables[]"
> from hda_patch.h to hda_codec.c, and then adds
> #include "hda_patch.h"
> in a few .c files so that definitions of e.g.
> const struct hda_codec_preset snd_hda_preset_analog[]
> are checked to match declarations in hda_patch.h
> 
> The rest of the patch (bulk of it) adds "const"
> in many places.
> 
> Patch is compile tested. Please apply.
> 
> Signed-off-by: Denys Vlasenko <vda.linux@...glemail.com>

Sorry for the late reply.

First, thanks for your patch.  Although I have also a similar patch
pending on my tree, but it wasn't applied, because I'd like to mark
these functions/data rather as __devinit*.  And, sadly, init and const
don't like with each other.  So, my plan is to apply __devinit but
without const.

But, please don't hurry up to mark everything init yet now.  I've been
working on the dynamic codec parser on user-space and this would
involve with some functions that are now apparently init functions.

Since this isn't a critical issue, let's postpone it as a post-2.6.24
stuff.


thanks,

Takashi
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