10209abe87
This patch adds support for transferring requests, which are non-contiguous in physical memory, i.e. the data buffer is described by a scatter-list. This allows transferring large requests without relying on error-prone contiguous buffer allocations. This way of allocating requests is already implemented in functionfs and TCM USB functions and automatically used if UDC driver advertises scatter-gather suppport. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> [mszyprow: fixed null pointer issue, rewrote commit message] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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.