linux-kernel - [PATCH 0/4] ASoC/soundwire: log actual PING status on resume issues

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-next>] [day] [month] [year] [list]

Message-Id: <20220714011043.46059-1-yung-chuan.liao@linux.intel.com>
Date:   Thu, 14 Jul 2022 09:10:39 +0800
From:   Bard Liao <yung-chuan.liao@...ux.intel.com>
To:     alsa-devel@...a-project.org, vkoul@...nel.org
Cc:     vinod.koul@...aro.org, linux-kernel@...r.kernel.org, tiwai@...e.de,
        broonie@...nel.org, pierre-louis.bossart@...ux.intel.com,
        bard.liao@...el.com
Subject: [PATCH 0/4] ASoC/soundwire: log actual PING status on resume issues

we've been stuck with problems in the dual-amplifier configurations where
one of the two devices seems to become UNATTACHED and never regains sync,
see https://github.com/thesofproject/linux/issues/3638.

This is a rather infrequent issue that may happen once or twice per month,
but still it remains a concern.

One possibility is that the device does lose sync but somehow our hardware
detection fails to see it resync.

This series just adds a basic read directly from the PING frames to help
confirm if yes/no the device regain sync.

The change is mainly on soundwire. @Mark, Could you ack the ASoC patch
if it looks good to you?

Pierre-Louis Bossart (4):
  soundwire: add read_ping_status helper definition in manager ops
  soundwire: intel/cadence: expose PING status in manager ops
  soundwire: add sdw_show_ping_status() helper
  ASoC: codecs: show PING status on resume failures

 drivers/soundwire/bus.c            | 32 ++++++++++++++++++++++++++++++
 drivers/soundwire/cadence_master.c |  8 ++++++++
 drivers/soundwire/cadence_master.h |  2 ++
 drivers/soundwire/intel.c          |  1 +
 include/linux/soundwire/sdw.h      |  5 +++++
 sound/soc/codecs/max98373-sdw.c    |  2 ++
 sound/soc/codecs/rt1308-sdw.c      |  2 ++
 sound/soc/codecs/rt1316-sdw.c      |  2 ++
 sound/soc/codecs/rt5682-sdw.c      |  2 ++
 sound/soc/codecs/rt700-sdw.c       |  2 ++
 sound/soc/codecs/rt711-sdca-sdw.c  |  2 ++
 sound/soc/codecs/rt715-sdca-sdw.c  |  2 ++
 sound/soc/codecs/rt715-sdw.c       |  2 ++
 13 files changed, 64 insertions(+)

-- 
2.25.1