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Currently the common definition of function_nocfi() is provided by <linux/mm.h>, and architectures are expected to provide a definition in <asm/memory.h>. Due to header dependencies, this can make it hard to use function_nocfi() in low-level headers. As function_nocfi() has no dependency on any mm code, nor on any memory definitions, it doesn't need to live in <linux/mm.h> or <asm/memory.h>. Generally, it would make more sense for it to live in <linux/compiler.h>, where an architecture can override it in <asm/compiler.h>. Move the definitions accordingly. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Kees Cook <keescook@chromium.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Sami Tolvanen <samitolvanen@google.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210602153701.35957-1-mark.rutland@arm.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.