linux-kernel - [PATCH 2/7 v2] ASoC: siu: don't use DMA device for channel filtering

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu,  5 Jul 2012 12:29:38 +0200
From:	Guennadi Liakhovetski <g.liakhovetski@....de>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	Magnus Damm <magnus.damm@...il.com>, linux-sh@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 2/7 v2] ASoC: siu: don't use DMA device for channel filtering

DMA channels are filtered based on slave IDs, no need to additionally filter
on DMA device.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@....de>
Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>
---
 sound/soc/sh/siu_pcm.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/sound/soc/sh/siu_pcm.c b/sound/soc/sh/siu_pcm.c
index 3fdc801..488f9be 100644
--- a/sound/soc/sh/siu_pcm.c
+++ b/sound/soc/sh/siu_pcm.c
@@ -332,9 +332,6 @@ static bool filter(struct dma_chan *chan, void *slave)
 
 	pr_debug("%s: slave ID %d\n", __func__, param->shdma_slave.slave_id);
 
-	if (unlikely(param->dma_dev != chan->device->dev))
-		return false;
-
 	chan->private = &param->shdma_slave;
 	return true;
 }
@@ -369,7 +366,6 @@ static int siu_pcm_open(struct snd_pcm_substream *ss)
 			pdata->dma_slave_rx_a;
 	}
 
-	param->dma_dev = pdata->dma_dev;
 	/* Get DMA channel */
 	siu_stream->chan = dma_request_channel(mask, filter, param);
 	if (!siu_stream->chan) {
-- 
1.7.2.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/