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From: Shane Chien <shane.chien@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Mark Brown <broonie@kernel.org>
Cc: <linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <wsd_upstream@mediatek.com>,
	<jiaxin.yu@mediatek.com>, <eason.yen@mediatek.com>,
	<shane.chien@mediatek.com>
Subject: [PATCH] ASoC: Use memset_io to access I/O memory
Date: Fri, 18 Sep 2020 18:00:19 +0800	[thread overview]
Message-ID: <1600423219-29058-2-git-send-email-shane.chien@mediatek.com> (raw)
In-Reply-To: <1600423219-29058-1-git-send-email-shane.chien@mediatek.com>

From: "Shane.Chien" <shane.chien@mediatek.com>

Use memset_io to access I/O memory, instead of
memset.

Signed-off-by: Shane.Chien <shane.chien@mediatek.com>
---
 sound/core/pcm_native.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 9e0b2d7..a4efa84 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -756,7 +756,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 
 	/* clear the buffer for avoiding possible kernel info leaks */
 	if (runtime->dma_area && !substream->ops->copy_user)
-		memset(runtime->dma_area, 0, runtime->dma_bytes);
+		memset_io(runtime->dma_area, 0, runtime->dma_bytes);
 
 	snd_pcm_timer_resolution_change(substream);
 	snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
-- 
1.7.9.5

WARNING: multiple messages have this Message-ID (diff)
From: Shane Chien <shane.chien@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Mark Brown <broonie@kernel.org>
Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com,
	linux-kernel@vger.kernel.org, jiaxin.yu@mediatek.com,
	shane.chien@mediatek.com, linux-mediatek@lists.infradead.org,
	eason.yen@mediatek.com
Subject: [PATCH] ASoC: Use memset_io to access I/O memory
Date: Fri, 18 Sep 2020 18:00:19 +0800	[thread overview]
Message-ID: <1600423219-29058-2-git-send-email-shane.chien@mediatek.com> (raw)
In-Reply-To: <1600423219-29058-1-git-send-email-shane.chien@mediatek.com>

From: "Shane.Chien" <shane.chien@mediatek.com>

Use memset_io to access I/O memory, instead of
memset.

Signed-off-by: Shane.Chien <shane.chien@mediatek.com>
---
 sound/core/pcm_native.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 9e0b2d7..a4efa84 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -756,7 +756,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 
 	/* clear the buffer for avoiding possible kernel info leaks */
 	if (runtime->dma_area && !substream->ops->copy_user)
-		memset(runtime->dma_area, 0, runtime->dma_bytes);
+		memset_io(runtime->dma_area, 0, runtime->dma_bytes);
 
 	snd_pcm_timer_resolution_change(substream);
 	snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
-- 
1.7.9.5
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  reply	other threads:[~2020-09-18 10:05 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-18 10:00 [PATCH 0/1] Use memset_io to access I/O memory Shane Chien
2020-09-18 10:00 ` Shane Chien
2020-09-18 10:00 ` Shane Chien [this message]
2020-09-18 10:00   ` [PATCH] ASoC: " Shane Chien
2020-09-18 11:01   ` Mark Brown
2020-09-18 11:01     ` Mark Brown
2020-09-18 10:05 ` [PATCH 0/1] " Mark Brown
2020-09-18 10:05   ` Mark Brown

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