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From: Mark Brown <broonie@kernel.org>
To: Alain Volmat <alain.volmat@st.com>
Cc: amelie.delaunay@st.com, mcoquelin.stm32@gmail.com,
	alexandre.torgue@st.com, linux-spi@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, fabrice.gasnier@st.com
Subject: Re: [PATCH 09/18] spi: stm32h7: fix race condition at end of transfer
Date: Wed, 5 Aug 2020 11:53:57 +0100	[thread overview]
Message-ID: <20200805105357.GD5556@sirena.org.uk> (raw)
In-Reply-To: <1596610933-32599-10-git-send-email-alain.volmat@st.com>

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On Wed, Aug 05, 2020 at 09:02:04AM +0200, Alain Volmat wrote:
> From: Antonio Borneo <antonio.borneo@st.com>
> 
> The caller of stm32_spi_transfer_one(), spi_transfer_one_message(),
> is waiting for us to call spi_finalize_current_transfer() and will
> eventually schedule a new transfer, if available.
> We should guarantee that the spi controller is really available
> before calling spi_finalize_current_transfer().
> 
> Move the call to spi_finalize_current_transfer() _after_ the call
> to stm32_spi_disable().

This seems like a bug fix and should therefore be at the start of the
series so it can be sent to mainline without the new development work.

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  reply	other threads:[~2020-08-05 19:21 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-05  7:01 [PATCH 00/18] spi: stm32: various driver enhancements Alain Volmat
2020-08-05  7:01 ` [PATCH 01/18] spi: stm32-spi: driver uses reset controller only at init Alain Volmat
2020-08-05  7:01 ` [PATCH 02/18] spi: stm32-spi: defer probe for reset Alain Volmat
2020-08-05 10:49   ` Mark Brown
2020-08-07 13:42     ` Alain Volmat
2020-08-07 14:01       ` Mark Brown
2020-08-05  7:01 ` [PATCH 03/18] spi: stm32h7: remove unused mode fault MODF event handling Alain Volmat
2020-08-05 10:51   ` Mark Brown
2020-08-05  7:01 ` [PATCH 04/18] spi: stm32: use bitfield macros Alain Volmat
2020-08-05  7:02 ` [PATCH 05/18] spi: stm32h7: replace private SPI_1HZ_NS with NSEC_PER_SEC Alain Volmat
2020-08-05  7:02 ` [PATCH 06/18] spi: stm32h7: fix irq handler Alain Volmat
2020-08-05  7:02 ` [PATCH 07/18] spi: stm32h7: rework rx fifo read function Alain Volmat
2020-08-05  7:02 ` [PATCH 08/18] spi: stm32h7: fix dbg/warn/err conditions in irq handler Alain Volmat
2020-08-05  7:02 ` [PATCH 09/18] spi: stm32h7: fix race condition at end of transfer Alain Volmat
2020-08-05 10:53   ` Mark Brown [this message]
2020-08-05  7:02 ` [PATCH 10/18] spi: stm32: wait for completion in transfer_one() Alain Volmat
2020-08-05 10:58   ` Mark Brown
2020-08-05  7:02 ` [PATCH 11/18] spi: stm32: fix fifo threshold level in case of short transfer Alain Volmat
2020-08-05 10:59   ` Mark Brown
2020-08-05  7:02 ` [PATCH 12/18] spi: stm32: move spi disable out of irq handler Alain Volmat
2020-08-05 11:01   ` Mark Brown
2020-08-05  7:02 ` [PATCH 13/18] spi: stm32h7: fix handling of dma transfer completed Alain Volmat
2020-08-05 11:02   ` Mark Brown
2020-08-05  7:02 ` [PATCH 14/18] spi: stm32: improve suspend/resume management Alain Volmat
2020-08-05  7:02 ` [PATCH 15/18] spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate Alain Volmat
2020-08-05 11:02   ` Mark Brown
2020-08-05  7:02 ` [PATCH 16/18] spi: stm32: always perform registers configuration prior to transfer Alain Volmat
2020-08-05 11:03   ` Mark Brown
2020-08-05  7:02 ` [PATCH 17/18] spi: stm32: properly handle 0 byte transfer Alain Volmat
2020-08-05  7:02 ` [PATCH 18/18] spi: stm32h7: ensure message are smaller than max size Alain Volmat

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