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Message-ID: <20250502235219.1000429-3-linux@treblig.org>
Date: Sat, 3 May 2025 00:52:16 +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 2/5] ALSA: pcm: Remove unused snd_dmaengine_pcm_open_request_chan
From: "Dr. David Alan Gilbert" <linux@...blig.org>
snd_dmaengine_pcm_open_request_chan() last use was removed in 2022's
commit b401d1fd8053 ("ASoC: pxa: remove unused board support")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
include/sound/dmaengine_pcm.h | 2 --
sound/core/pcm_dmaengine.c | 21 ---------------------
2 files changed, 23 deletions(-)
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index f6baa9a01868..1ef13bcdc43f 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -38,8 +38,6 @@ int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream,
int snd_dmaengine_pcm_close(struct snd_pcm_substream *substream);
int snd_dmaengine_pcm_sync_stop(struct snd_pcm_substream *substream);
-int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream,
- dma_filter_fn filter_fn, void *filter_data);
int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream);
struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn,
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c
index b134a51b3fd5..72040964b6fd 100644
--- a/sound/core/pcm_dmaengine.c
+++ b/sound/core/pcm_dmaengine.c
@@ -328,27 +328,6 @@ int snd_dmaengine_pcm_open(struct snd_pcm_substream *substream,
}
EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open);
-/**
- * snd_dmaengine_pcm_open_request_chan - Open a dmaengine based PCM substream and request channel
- * @substream: PCM substream
- * @filter_fn: Filter function used to request the DMA channel
- * @filter_data: Data passed to the DMA filter function
- *
- * This function will request a DMA channel using the passed filter function and
- * data. The function should usually be called from the pcm open callback. Note
- * that this function will use private_data field of the substream's runtime. So
- * it is not available to your pcm driver implementation.
- *
- * Return: 0 on success, a negative error code otherwise
- */
-int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream,
- dma_filter_fn filter_fn, void *filter_data)
-{
- return snd_dmaengine_pcm_open(substream,
- snd_dmaengine_pcm_request_channel(filter_fn, filter_data));
-}
-EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_open_request_chan);
-
int snd_dmaengine_pcm_sync_stop(struct snd_pcm_substream *substream)
{
struct dmaengine_pcm_runtime_data *prtd = substream_to_prtd(substream);
--
2.49.0
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