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spi: fsi: Reduce max transfer size to 8 bytes
commit 34d34a5 upstream. Security changes have forced the SPI controllers to be limited to 8 byte reads. Refactor the sequencing to just handle 8 bytes at a time. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20210716133915.14697-2-eajames@linux.ibm.com Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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