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[ Upstream commitb6b79dd530] Using DECLARE_STATIC_KEY_FALSE needs linux/jump_table.h. Otherwise the build fails with eg: arch/powerpc/include/asm/book3s/64/kup-radix.h:66:1: warning: data definition has no type or storage class 66 | DECLARE_STATIC_KEY_FALSE(uaccess_flush_key); Fixes:9a32a7e78b("powerpc/64s: flush L1D after user accesses") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> [mpe: Massage change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201123184016.693fe464@canb.auug.org.au 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.