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5c74f79958
`pt_regs_check` is a dummy function, its purpose is to break the build if struct pt_regs and struct user_pt_regs don't match. This function has no functionnal purpose, and will get eliminated at link time or after init depending on CONFIG_LD_DEAD_CODE_DATA_ELIMINATION This commit adds a prototype to fix warning at W=1: arch/powerpc/kernel/ptrace.c:3339:13: error: no previous prototype for ‘pt_regs_check’ [-Werror=missing-prototypes] Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20181208154624.6504-1-malat@debian.org
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.