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

From: Joe Perches
Date: Fri Sep 14 2007 - 14:09:27 EST


On Fri, 2007-09-14 at 18:48 +0100, Denys Vlasenko wrote:

> Patch is attached.

The SND_HDA_PRESETS define doesn't seem useful.
It's only used once.

diff -urp linux-2.6.23-rc6/sound/pci/hda/hda_codec.c linux-2.6.23-rc6.bigdata/sound/pci/hda/hda_codec.c
--- linux-2.6.23-rc6/sound/pci/hda/hda_codec.c 2007-07-09 00:32:17.000000000 +0100
+++ linux-2.6.23-rc6.bigdata/sound/pci/hda/hda_codec.c 2007-09-14 18:32:24.000000000 +0100
@@ -57,6 +57,10 @@ static struct hda_vendor_id hda_vendor_i

/* codec presets */
#include "hda_patch.h"
+static const struct hda_codec_preset *const hda_preset_tables[] = {
+ SND_HDA_PRESETS,
+ NULL
+};
diff -urp linux-2.6.23-rc6/sound/pci/hda/hda_patch.h linux-2.6.23-rc6.bigdata/sound/pci/hda/hda_patch.h
--- linux-2.6.23-rc6/sound/pci/hda/hda_patch.h 2007-07-09 00:32:17.000000000 +0100
+++ linux-2.6.23-rc6.bigdata/sound/pci/hda/hda_patch.h 2007-09-14 18:30:17.000000000 +0100
@@ -1,32 +1,30 @@
/*
- * HDA Patches - included by hda_codec.c
+ * HDA Patches
*/

/* Realtek codecs */
-extern struct hda_codec_preset snd_hda_preset_realtek[];
+extern const struct hda_codec_preset snd_hda_preset_realtek[];
/* C-Media codecs */
-extern struct hda_codec_preset snd_hda_preset_cmedia[];
+extern const struct hda_codec_preset snd_hda_preset_cmedia[];
/* Analog Devices codecs */
-extern struct hda_codec_preset snd_hda_preset_analog[];
+extern const struct hda_codec_preset snd_hda_preset_analog[];
/* SigmaTel codecs */
-extern struct hda_codec_preset snd_hda_preset_sigmatel[];
+extern const struct hda_codec_preset snd_hda_preset_sigmatel[];
/* SiLabs 3054/3055 modem codecs */
-extern struct hda_codec_preset snd_hda_preset_si3054[];
+extern const struct hda_codec_preset snd_hda_preset_si3054[];
/* ATI HDMI codecs */
-extern struct hda_codec_preset snd_hda_preset_atihdmi[];
+extern const struct hda_codec_preset snd_hda_preset_atihdmi[];
/* Conexant audio codec */
-extern struct hda_codec_preset snd_hda_preset_conexant[];
+extern const struct hda_codec_preset snd_hda_preset_conexant[];
/* VIA codecs */
-extern struct hda_codec_preset snd_hda_preset_via[];
+extern const struct hda_codec_preset snd_hda_preset_via[];

-static const struct hda_codec_preset *hda_preset_tables[] = {
- snd_hda_preset_realtek,
- snd_hda_preset_cmedia,
- snd_hda_preset_analog,
- snd_hda_preset_sigmatel,
- snd_hda_preset_si3054,
- snd_hda_preset_atihdmi,
- snd_hda_preset_conexant,
- snd_hda_preset_via,
- NULL
-};
+#define SND_HDA_PRESETS \
+ snd_hda_preset_realtek, \
+ snd_hda_preset_cmedia, \
+ snd_hda_preset_analog, \
+ snd_hda_preset_sigmatel, \
+ snd_hda_preset_si3054, \
+ snd_hda_preset_atihdmi, \
+ snd_hda_preset_conexant, \
+ snd_hda_preset_via


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