5742d04912
The debug save/restore functions can be improved by using the has_vhe() static key instead of the instruction alternative. Using the static key uses the same paradigm as we're going to use elsewhere, it makes the code more readable, and it generates slightly better code (no stack setups and function calls unless necessary). We also use a static key on the restore path, because it will be marginally faster than loading a value from memory. Finally, we don't have to conditionally clear the debug dirty flag if it's set, we can just clear it. Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.