linux-kernel - Re: [PATCH 0/1] spi: spi-bcm2835: Fix deadlock

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Message-Id: <162680680557.11423.14003826010912823109.b4-ty@kernel.org>
Date:   Tue, 20 Jul 2021 19:48:16 +0100
From:   Mark Brown <broonie@...nel.org>
To:     alexandru.tachici@...log.com, linux-kernel@...r.kernel.org,
        linux-spi@...r.kernel.org
Cc:     Mark Brown <broonie@...nel.org>, nsaenz@...nel.org,
        f.fainelli@...il.com, rjui@...adcom.com, swarren@...dotorg.org,
        bcm-kernel-feedback-list@...adcom.com, bootc@...tc.net,
        nuno.sa@...log.com
Subject: Re: [PATCH 0/1] spi: spi-bcm2835: Fix deadlock

On Sat, 17 Jul 2021 00:02:44 +0300, alexandru.tachici@...log.com wrote:
> The bcm2835_spi_transfer_one function can create a deadlock
> if it is called while another thread already has the
> CCF lock.
> 
> This behavior was observed at boot and when trying to
> print the clk_summary debugfs. I had registered
> at the time multiple clocks of AD9545 through the CCF.
> Tested this using an RPi 4 connected to AD9545 through SPI.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[1/1] spi: spi-bcm2835: Fix deadlock
      commit: c45c1e82bba130db4f19d9dbc1deefcf4ea994ed

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark