From: Michael Tretter <m.tretter@pengutronix.de>
To: vkoul@kernel.org, dmaengine@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
appana.durga.rao@xilinx.com, michal.simek@xilinx.com,
m.tretter@pengutronix.de, kernel@pengutronix.de
Subject: [PATCH 0/7] dmaengine: zynqmp_dma: fix lockdep warning and cleanup
Date: Thu, 26 Aug 2021 11:47:35 +0200 [thread overview]
Message-ID: <20210826094742.1302009-1-m.tretter@pengutronix.de> (raw)
Hi,
I reported a lockdep warning in the ZynqMP DMA driver a few weeks ago [0].
This series fixes the reported warning and performs some cleanup that I found
while looking at the driver more closely.
Patches 1-4 are the cleanups. They affect the log output of the driver, allow
to compile the driver on other platforms when COMPILE_TEST is enabled, and
remove unused included header files from the driver.
Patches 5-7 aim to fix the lockdep warning. Patch 5 and 6 restructure the
locking in the driver to make it more fine-grained instead of holding the lock
for the entire tasklet. Patch 7 finally fixes the warning.
Michael
[0] https://lore.kernel.org/linux-arm-kernel/20210601130108.GA12967@pengutronix.de/
Michael Tretter (7):
dmaengine: zynqmp_dma: simplify with dev_err_probe
dmaengine: zynqmp_dma: drop message on probe success
dmaengine: zynqmp_dma: enable COMPILE_TEST
dmaengine: zynqmp_dma: cleanup includes
dmaengine: zynqmp_dma: cleanup after completing all descriptors
dmaengine: zynqmp_dma: refine dma descriptor locking
dmaengine: zynqmp_dma: fix lockdep warning in tasklet
drivers/dma/Kconfig | 2 +-
drivers/dma/xilinx/zynqmp_dma.c | 67 +++++++++++++++++----------------
2 files changed, 35 insertions(+), 34 deletions(-)
--
2.30.2
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next reply other threads:[~2021-08-26 9:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-26 9:47 Michael Tretter [this message]
2021-08-26 9:47 ` [PATCH 1/7] dmaengine: zynqmp_dma: simplify with dev_err_probe Michael Tretter
2021-08-26 9:47 ` [PATCH 2/7] dmaengine: zynqmp_dma: drop message on probe success Michael Tretter
2021-08-26 9:47 ` [PATCH 3/7] dmaengine: zynqmp_dma: enable COMPILE_TEST Michael Tretter
2021-08-26 9:47 ` [PATCH 4/7] dmaengine: zynqmp_dma: cleanup includes Michael Tretter
2021-08-26 9:47 ` [PATCH 5/7] dmaengine: zynqmp_dma: cleanup after completing all descriptors Michael Tretter
2021-08-26 9:47 ` [PATCH 6/7] dmaengine: zynqmp_dma: refine dma descriptor locking Michael Tretter
2021-08-26 9:47 ` [PATCH 7/7] dmaengine: zynqmp_dma: fix lockdep warning in tasklet Michael Tretter
2021-10-01 8:56 ` [PATCH 0/7] dmaengine: zynqmp_dma: fix lockdep warning and cleanup Michael Tretter
2021-10-01 11:56 ` Vinod Koul
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