If CONFIG_MMU is not set (e.g. m68k/m5272c3_defconfig): mm/nommu.c:1671:6: error: conflicting types for ‘filemap_map_pages’ 1671 | void filemap_map_pages(struct vm_fault *vmf, | ^~~~~~~~~~~~~~~~~ In file included from mm/nommu.c:20: ./include/linux/mm.h:2578:19: note: previous declaration of ‘filemap_map_pages’ was here 2578 | extern vm_fault_t filemap_map_pages(struct vm_fault *vmf, | ^~~~~~~~~~~~~~~~~ The signature of filemap_map_pages() was changed, but the nommu implementation wasn't updated. Reported-by: noreply@ellerman.id.au Fixes: f9ce0be71d1f ("mm: Cleanup faultaround and finish_fault() codepaths") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20210128100626.2257638-1-geert@linux-m68k.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.
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