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As of commit10c77dba40("powerpc/boot: Fix build failure in 32-bit boot wrapper") the opal code is hidden behind CONFIG_PPC64_BOOT_WRAPPER, but the boot wrapper avoids include/linux, so it does not get the normal Kconfig flags. We can drop the guard entirely as in commitf8e8e69cea("powerpc/boot: Only build OPAL code when necessary") the makefile only includes opal.c in the build if CONFIG_PPC64_BOOT_WRAPPER is set. Fixes:10c77dba40("powerpc/boot: Fix build failure in 32-bit boot wrapper") Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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.
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.