linux-kernel - Re: [PATCH] ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <87y160xvgw.wl-tiwai@suse.de>
Date: Wed, 17 Jul 2024 10:40:15 +0200
From: Takashi Iwai <tiwai@...e.de>
To: Shengjiu Wang <shengjiu.wang@....com>
Cc: lars@...afoo.de,
	perex@...ex.cz,
	tiwai@...e.com,
	broonie@...nel.org,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org,
	shengjiu.wang@...il.com
Subject: Re: [PATCH] ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused

On Wed, 17 Jul 2024 08:44:53 +0200,
Shengjiu Wang wrote:
> 
> When suspended, the DMA channel may enter PAUSE state if dmaengine_pause()
> is supported by DMA.
> At this state, dmaengine_synchronize() should not be called, otherwise
> the DMA channel can't be resumed successfully.
> 
> Fixes: e8343410ddf0 ("ALSA: dmaengine: Synchronize dma channel after drop()")
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>

Thanks, applied now.


Takashi