linux-kernel - [PATCH v1 0/2] spi: Make dummy SG handling robust

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Message-ID: <20240531094658.1598969-1-andy.shevchenko@gmail.com>
Date: Fri, 31 May 2024 12:44:31 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Mark Brown <broonie@...nel.org>,
	linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Nícolas F . R . A . Prado <nfraprado@...labora.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v1 0/2] spi: Make dummy SG handling robust

There's an unreliable code to handle DMA mappings on unidirection transfers.
This series does two things:
- it reverts the seemingly unnecessary change
- it reworks dummy SG list handling

There is no need to backport that AFAIU, but no harm to apply for v6.10 aka
the current release cycle. Guys, please test these. 

Andy Shevchenko (2):
  spi: Revert "Check if transfer is mapped before calling DMA sync APIs"
  spi: Do not rely on the SG table and respective API implementations

 drivers/spi/spi.c | 46 +++++++++++++++++-----------------------------
 1 file changed, 17 insertions(+), 29 deletions(-)

-- 
2.45.1