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rio_request_dma() and rio_dma_prep_slave_sg() were added in 2012 by commite42d98ebe7("rapidio: add DMA engine support for RIO data transfers") but never used. rio_find_mport() last use was removed in 2013 by commit9edbc30b43("rapidio: update enumerator registration mechanism") rio_unregister_scan() was added in 2013 by commita11650e110("rapidio: make enumeration/discovery configurable") but never used. Remove them. Link: https://lkml.kernel.org/r/20250419203012.429787-3-linux@treblig.org Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Cc: Alexandre Bounine <alex.bou9@gmail.com> Cc: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.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.