ASoC: intel: sof_sdw: Only pass codec_conf pointer around

Rather than passing around a pointer to the codec_conf array, an index
into it and a size, simply pass around a pointer to the current codec_conf.
This reduces the amount of state moving around.
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240326160429.13560-5-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/sof_sdw.c

@@ -1457,10 +1457,8 @@ static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"
 static int create_sdw_dailink(struct snd_soc_card *card, int *link_index,
 			      struct snd_soc_dai_link *dai_links, int sdw_be_num,
 			      const struct snd_soc_acpi_link_adr *adr_link,
-			      struct snd_soc_codec_conf *codec_conf,
-			      int codec_count, int *be_id,
-			      int *codec_conf_index,
-			      bool *ignore_pch_dmic,
+			      struct snd_soc_codec_conf **codec_conf,
+			      int *be_id, bool *ignore_pch_dmic,
 			      bool append_dai_type,
 			      int adr_index,
 			      int dai_index)
@@ -1509,7 +1507,7 @@ static int create_sdw_dailink(struct snd_soc_card *card, int *link_index,
 				continue;
 
 			/* sanity check */
-			if (*codec_conf_index >= codec_count) {
+			if (*codec_conf >= card->codec_conf + card->num_configs) {
 				dev_err(dev, "codec_conf array overflowed\n");
 				return -EINVAL;
 			}
@@ -1520,12 +1518,11 @@ static int create_sdw_dailink(struct snd_soc_card *card, int *link_index,
 			if (ret)
 				return ret;
 
-			codec_conf[*codec_conf_index].dlc = codecs[codec_dlc_index];
-			codec_conf[*codec_conf_index].name_prefix =
-					adr_link_next->adr_d[j].name_prefix;
+			(*codec_conf)->dlc = codecs[codec_dlc_index];
+			(*codec_conf)->name_prefix = adr_link_next->adr_d[j].name_prefix;
 
 			codec_dlc_index++;
-			(*codec_conf_index)++;
+			(*codec_conf)++;
 		}
 		j = 0;
 
@@ -1646,7 +1643,6 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 	bool append_dai_type = false;
 	bool ignore_pch_dmic = false;
 	int codec_conf_num = 0;
-	int codec_conf_index = 0;
 	bool group_generated[SDW_MAX_GROUPS] = { };
 	struct snd_soc_dai_link *dai_links;
 	int num_links, link_index = 0;
@@ -1706,6 +1702,9 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 	if (!codec_conf)
 		return -ENOMEM;
 
+	card->codec_conf = codec_conf;
+	card->num_configs = codec_conf_num;
+
 	/* SDW */
 	if (!sdw_be_num)
 		goto SSP;
@@ -1764,9 +1763,9 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 
 				ret = create_sdw_dailink(card, &link_index, dai_links,
 							 sdw_be_num, adr_link,
-							 codec_conf, codec_conf_num,
-							 &current_be_id, &codec_conf_index,
-							 &ignore_pch_dmic, append_dai_type, i, j);
+							 &codec_conf, &current_be_id,
+							 &ignore_pch_dmic,
+							 append_dai_type, i, j);
 				if (ret < 0) {
 					dev_err(dev, "failed to create dai link %d\n", link_index);
 					return ret;
@@ -1886,9 +1885,6 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 	card->dai_link = dai_links;
 	card->num_links = num_links;
 
-	card->codec_conf = codec_conf;
-	card->num_configs = codec_conf_num;
-
 	return 0;
 }