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Commitae870a68b5("arm64/mm: Convert to using lock_mm_and_find_vma()") made do_page_fault() to use 'vma' even if CONFIG_PER_VMA_LOCK is not defined, but the declaration is still in the ifdef. As a result, building kernel without the config fails with undeclared variable error as below: arch/arm64/mm/fault.c: In function 'do_page_fault': arch/arm64/mm/fault.c:624:2: error: 'vma' undeclared (first use in this function); did you mean 'vmap'? 624 | vma = lock_mm_and_find_vma(mm, addr, regs); | ^~~ | vmap Fix it by moving the declaration out of the ifdef. Fixes:ae870a68b5("arm64/mm: Convert to using lock_mm_and_find_vma()") Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.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.