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From: Ard Biesheuvel <ardb@kernel.org> [ Commit b9e909f78e7e4b826f318cfe7bedf3ce229920e6 upstream ] The x86 decompressor is built and linked as a separate executable, but it shares components with the kernel proper, which are either #include'd as C files, or linked into the decompresor as a static library (e.g, the EFI stub) Both the kernel itself and the decompressor define a global symbol 'boot_params' to refer to the boot_params struct, but in the former case, it refers to the struct directly, whereas in the decompressor, it refers to a global pointer variable referring to the struct boot_params passed by the bootloader or constructed from scratch. This ambiguity is unfortunate, and makes it impossible to assign this decompressor variable from the x86 EFI stub, given that declaring it as extern results in a clash. So rename the decompressor version (whose scope is limited) to boot_params_ptr. [ mingo: Renamed 'boot_params_p' to 'boot_params_ptr' for clarity ] Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.