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[ Upstream commit375561bd61] Fix the following Sparse warnings that got noticed when the PPC-dev patchwork was checking another patch (see the link below): init/main.c:862:1: warning: symbol 'randomize_kstack_offset' was not declared. Should it be static? init/main.c:864:1: warning: symbol 'kstack_offset' was not declared. Should it be static? Which in fact are triggered on all architectures that have HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET support (for instances x86, arm64 etc). Link: https://lore.kernel.org/lkml/e7b0d68b-914d-7283-827c-101988923929@huawei.com/T/#m49b2d4490121445ce4bf7653500aba59eefcb67f Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: GONG, Ruiqi <gongruiqi1@huawei.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Fixes:39218ff4c6("stack: Optionally randomize kernel stack offset each syscall") Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220629060423.2515693-1-gongruiqi1@huawei.com Signed-off-by: Sasha Levin <sashal@kernel.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.