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fbf6ad5efe
Currently, a build with CONFIG_EFI=n and CONFIG_KASAN=y will not complete successfully because of missing symbols. This is due to the fact that the __pi_ prefixed aliases for __memcpy/__memmove were put inside a #ifdef CONFIG_EFI block inadvertently, and are therefore missing from the build in question. These definitions should only be provided when needed, as they will otherwise clutter up the symbol table, kallsyms etc for no reason. Fortunately, instead of using CPP conditionals, we can achieve the same result by using the linker's PROVIDE() directive, which only defines a symbol if it is required to complete the link. So let's use that for all symbols alias definitions. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20220629083246.3729177-1-ardb@kernel.org Signed-off-by: Will Deacon <will@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.