From: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
To: <vkoul@kernel.org>
Cc: <broonie@kernel.org>, <alsa-devel@alsa-project.org>,
<yung-chuan.liao@linux.intel.com>,
<pierre-louis.bossart@linux.dev>, <Basavaraj.Hiregoudar@amd.com>,
<Sunil-kumar.Dommati@amd.com>, <venkataprasad.potturu@amd.com>,
<Syed.SabaKareem@amd.com>, <Mario.Limonciello@amd.com>,
<Richard.Gong@amd.com>, <linux-sound@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
"Vijendar Mukunda" <Vijendar.Mukunda@amd.com>
Subject: [PATCH v4 04/13] soundwire: amd: assert msg_lock is held in amd_sdw_read_ping_status()
Date: Mon, 26 Oct 2026 10:13:35 +0530 [thread overview]
Message-ID: <20261026044507.2310694-5-Vijendar.Mukunda@amd.com> (raw)
In-Reply-To: <20261026044507.2310694-1-Vijendar.Mukunda@amd.com>
amd_sdw_read_ping_status() is always called from sdw_show_ping_status()
which holds bus->msg_lock. Add lockdep_assert_held() to document this
locking requirement and catch any future callers that omit the lock.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
drivers/soundwire/amd_manager.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index b75d0104e28c..5e9d228d09d0 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -464,6 +464,7 @@ static u32 amd_sdw_read_ping_status(struct sdw_bus *bus)
u64 response;
u32 slave_stat;
+ lockdep_assert_held(&bus->msg_lock);
if (amd_sdw_send_cmd_get_resp(amd_manager, 0, 0, &response)) {
dev_err_ratelimited(amd_manager->dev, "SDW%x ping status timeout\n",
amd_manager->instance);
--
2.53.0
next prev parent reply other threads:[~2026-10-26 4:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 4:43 [PATCH v4 00/13] soundwire: amd: SoundWire manager driver bug fixes Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 01/13] soundwire: amd: fix SDW command timeout return value handling Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 02/13] soundwire: amd: return response on IMM status cleanup timeout Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 03/13] soundwire: amd: cache ping slave status to avoid spurious disconnect on timeout Vijendar Mukunda
2026-10-26 4:43 ` Vijendar Mukunda [this message]
2026-10-26 4:43 ` [PATCH v4 05/13] soundwire: amd: fix work drain ordering in remove path Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 06/13] soundwire: amd: pm_runtime guard " Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 07/13] soundwire: amd: fix ctx leak when sdw_amd_startup() fails Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 08/13] soundwire: amd: propagate amd_init_sdw_manager() error on resume Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 09/13] soundwire: amd: drop amd_deinit_sdw_manager() in POWER_OFF suspend Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 10/13] soundwire: amd: replace >= ACP70 with explicit switch/case in PM paths Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 11/13] soundwire: amd: fix interrupt gate and work drain ordering in PM ops Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 12/13] soundwire: amd: fix IRQ thread dropping STATUS_0TO7 on simultaneous wake Vijendar Mukunda
2026-10-26 4:43 ` [PATCH v4 13/13] soundwire: amd: fix STATUS_8TO11 double-clear race in wake handler Vijendar Mukunda
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