[alsa-devel] Applied "ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds" to the asoc tree

[Mark Brown]

The patch

   ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 7db08b2cb36cbfbcb06c44dc8e48ccb6a119466f Mon Sep 17 00:00:00 2001
From: Guenter Roeck <groeck at chromium.org>
Date: Wed, 8 Nov 2017 16:34:54 -0500
Subject: [PATCH] ASoC: amd: use do_div rather than 64 bit division to fix 32
 bit builds

ERROR: "__aeabi_uldivmod" [sound/soc/amd/snd-soc-acp-pcm.ko] undefined!

64-bit divides require special operations to avoid build errors on 32-bit
systems.

[Reword the commit message to make it clearer - Alex]

fixes: 61add8147942 (ASoC: amd: Report accurate hw_ptr during dma)
Signed-off-by: Guenter Roeck <groeck at chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/678919
Reviewed-by: Jason Clinton <jclinton at chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/681618
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/amd/acp-pcm-dma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index 13d040a4d26f..ef7e98ad960c 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -856,12 +856,11 @@ static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		if (bytescount > rtd->renderbytescount)
 			bytescount = bytescount - rtd->renderbytescount;
-		pos =  bytescount % buffersize;
 	} else {
 		if (bytescount > rtd->capturebytescount)
 			bytescount = bytescount - rtd->capturebytescount;
-		pos = bytescount % buffersize;
 	}
+	pos = do_div(bytescount, buffersize);
 	return bytes_to_frames(runtime, pos);
 }
 
-- 
2.15.0