a75c52896b
The copy functions for the independent features are horribly named and the supervisor and independent part is just overengineered. The point is that the supplied mask has either to be a subset of the independent features or a subset of the task->fpu.xstate managed features. Rewrite it so it checks for invalid overlaps of these areas in the caller supplied feature mask. Rename it so it follows the new naming convention for these operations. Mop up the function documentation. This allows to use that function for other purposes as well. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Kan Liang <kan.liang@linux.intel.com> Link: https://lkml.kernel.org/r/20210623121455.004880675@linutronix.de
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.