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2cbee7f886
When SPI driver is configured to work only with TX or RX DMA channel then dmaengine functions can dereferene NULL pointer. Running full-duplex mode when when only RX or TX DMA channel is available can cause overrun condition or incorrect writing to transmit buffer so disable this types of DMA configuration and go back to interrupt mode. Signed-off-by: Cezary Gapinski <cezary.gapinski@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.