linux-kernel - [PATCH 1/5] ALSA: pcm: Remove unused snd_pcm_rate_range_to

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Message-ID: <20250502235219.1000429-2-linux@treblig.org>
Date: Sat,  3 May 2025 00:52:15 +0100
From: linux@...blig.org
To: perex@...ex.cz,
	tiwai@...e.com,
	linux-sound@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH 1/5] ALSA: pcm: Remove unused snd_pcm_rate_range_to_bits

From: "Dr. David Alan Gilbert" <linux@...blig.org>

The last use of snd_pcm_rate_range_to_bits() was removed in 2016 by
commit b6b6e4d670c9 ("ASoC: topology: Fix setting of stream rates, rate_min
and rate_max")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 include/sound/pcm.h   |  2 --
 sound/core/pcm_misc.c | 30 ------------------------------
 2 files changed, 32 deletions(-)

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 8becb4504887..a268de860259 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1251,8 +1251,6 @@ unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate);
 unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit);
 unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
 					 unsigned int rates_b);
-unsigned int snd_pcm_rate_range_to_bits(unsigned int rate_min,
-					unsigned int rate_max);
 
 /**
  * snd_pcm_set_runtime_buffer - Set the PCM runtime buffer
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index d3a08e292072..71eec32a7a0a 100644
--- a/sound/core/pcm_misc.c
+++ b/sound/core/pcm_misc.c
@@ -586,33 +586,3 @@ unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
 	return rates_a & rates_b;
 }
 EXPORT_SYMBOL_GPL(snd_pcm_rate_mask_intersect);
-
-/**
- * snd_pcm_rate_range_to_bits - converts rate range to SNDRV_PCM_RATE_xxx bit
- * @rate_min: the minimum sample rate
- * @rate_max: the maximum sample rate
- *
- * This function has an implicit assumption: the rates in the given range have
- * only the pre-defined rates like 44100 or 16000.
- *
- * Return: The SNDRV_PCM_RATE_xxx flag that corresponds to the given rate range,
- * or SNDRV_PCM_RATE_KNOT for an unknown range.
- */
-unsigned int snd_pcm_rate_range_to_bits(unsigned int rate_min,
-	unsigned int rate_max)
-{
-	unsigned int rates = 0;
-	int i;
-
-	for (i = 0; i < snd_pcm_known_rates.count; i++) {
-		if (snd_pcm_known_rates.list[i] >= rate_min
-			&& snd_pcm_known_rates.list[i] <= rate_max)
-			rates |= 1 << i;
-	}
-
-	if (!rates)
-		rates = SNDRV_PCM_RATE_KNOT;
-
-	return rates;
-}
-EXPORT_SYMBOL_GPL(snd_pcm_rate_range_to_bits);
-- 
2.49.0