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3aac9f4885
Merge series from Andy Shevchenko <andriy.shevchenko@linux.intel.com>: A couple of fixes to avoid calling DMA sync API when it's not needed. This doesn't stop from discussing if IOMMU code is doing the right thing, i.e. dereferences SG list when orig_nents == 0, but this is a separate story.
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.