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64fe73d103
There are no more peripheral drivers that set t->tx_dma or t->rx_dma. Therefore, is_dma_mapped is always false and can be removed. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://msgid.link/r/20240328-spi-more-tx-rx-buf-cleanup-v1-2-9ec1ceedf08c@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
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 reStructuredText 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.