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From:   Takashi Iwai <tiwai@suse.de>
To:     alsa-devel@alsa-project.org
Cc:     linux-kernel@vger.kernel.org, Takashi Iwai <tiwai@suse.de>
Subject: [PATCH 04/25] ALSA: dummy: Convert to generic PCM copy ops
Date:   Mon, 14 Aug 2023 13:55:02 +0200
Message-Id: <20230814115523.15279-5-tiwai@suse.de>
In-Reply-To: <20230814115523.15279-1-tiwai@suse.de>
References: <20230814115523.15279-1-tiwai@suse.de>
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This patch converts the dummy driver code to use the new unified PCM
copy callback.  As dummy driver doesn't do anything in the callback,
it's just a simple replacement.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/drivers/dummy.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 9c17b49a2ae1..4317677ba24a 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -626,14 +626,7 @@ static int alloc_fake_buffer(void)
 
 static int dummy_pcm_copy(struct snd_pcm_substream *substream,
 			  int channel, unsigned long pos,
-			  void __user *dst, unsigned long bytes)
-{
-	return 0; /* do nothing */
-}
-
-static int dummy_pcm_copy_kernel(struct snd_pcm_substream *substream,
-				 int channel, unsigned long pos,
-				 void *dst, unsigned long bytes)
+			  struct iov_iter *iter, unsigned long bytes)
 {
 	return 0; /* do nothing */
 }
@@ -667,8 +660,7 @@ static const struct snd_pcm_ops dummy_pcm_ops_no_buf = {
 	.prepare =	dummy_pcm_prepare,
 	.trigger =	dummy_pcm_trigger,
 	.pointer =	dummy_pcm_pointer,
-	.copy_user =	dummy_pcm_copy,
-	.copy_kernel =	dummy_pcm_copy_kernel,
+	.copy =		dummy_pcm_copy,
 	.fill_silence =	dummy_pcm_silence,
 	.page =		dummy_pcm_page,
 };
-- 
2.35.3