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Message-ID: <s5h1wbs1p7h.wl%tiwai@suse.de>
Date: Thu, 18 Oct 2007 16:18:10 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Ingo Molnar <mingo@...e.hu>
Cc: linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...ex.cz>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [patch] snd: fix build bug with CONFIG_SND_HDA_CODEC_SIGMATEL=y && !CONFIG_SND_HDA_GENERIC
At Thu, 18 Oct 2007 16:54:58 +0200,
Ingo Molnar wrote:
>
>
> * Takashi Iwai <tiwai@...e.de> wrote:
>
> > +++ b/sound/pci/hda/patch_sigmatel.c Thu Oct 18 16:23:22 2007 +0200
> > @@ -3062,9 +3062,16 @@ static int patch_stac9872(struct hda_cod
> > board_config = snd_hda_check_board_config(codec, STAC_9872_MODELS,
> > stac9872_models,
> > stac9872_cfg_tbl);
> > - if (board_config < 0)
> > + if (board_config < 0) {
> > + printk(KERN_WARNING "hda-codec: "
> > + "found unknown STAC9872 device\n");
> > +#ifdef CONFIG_SND_HDA_GENERIC
> > /* unknown config, let generic-parser do its job... */
> > return snd_hda_parse_generic_codec(codec);
> > +#else
> > + return -ENODEV;
> > +#endif
>
> pushing an #ifdef into a driver is quite unclean, if then you should
> define snd_hda_parse_generic_codec() in a header as a -ENODEV inline
> function if !CONFIG_SND_HDA_GENERIC.
Fair enough. The revised patch is below. This cleans up the ifdefs
in another place, too.
Takashi
diff -r fb9512ce24e0 pci/hda/hda_codec.c
--- a/pci/hda/hda_codec.c Thu Oct 18 10:48:43 2007 +0200
+++ b/pci/hda/hda_codec.c Thu Oct 18 17:06:44 2007 +0200
@@ -626,24 +626,19 @@ int __devinit snd_hda_codec_new(struct h
snd_hda_get_codec_name(codec, bus->card->mixername,
sizeof(bus->card->mixername));
-#ifdef CONFIG_SND_HDA_GENERIC
if (is_generic_config(codec)) {
err = snd_hda_parse_generic_codec(codec);
goto patched;
}
-#endif
if (codec->preset && codec->preset->patch) {
err = codec->preset->patch(codec);
goto patched;
}
/* call the default parser */
-#ifdef CONFIG_SND_HDA_GENERIC
err = snd_hda_parse_generic_codec(codec);
-#else
- printk(KERN_ERR "hda-codec: No codec parser is available\n");
- err = -ENODEV;
-#endif
+ if (err < 0)
+ printk(KERN_ERR "hda-codec: No codec parser is available\n");
patched:
if (err < 0) {
diff -r fb9512ce24e0 pci/hda/hda_local.h
--- a/pci/hda/hda_local.h Thu Oct 18 10:48:43 2007 +0200
+++ b/pci/hda/hda_local.h Thu Oct 18 17:06:44 2007 +0200
@@ -245,7 +245,14 @@ int snd_hda_multi_out_analog_cleanup(str
/*
* generic codec parser
*/
+#ifdef CONFIG_SND_HDA_GENERIC
int snd_hda_parse_generic_codec(struct hda_codec *codec);
+#else
+static int snd_hda_parse_generic_codec(struct hda_codec *codec)
+{
+ return -ENODEV;
+}
+#endif
/*
* generic proc interface
-
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