linux-kernel - page_alloc.c:(.init.text+0xa7c): undefined reference to `vmalloc

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Date:   Mon, 25 Apr 2022 13:40:23 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     linux-mm <linux-mm@...ck.org>,
        open list <linux-kernel@...r.kernel.org>
Cc:     Song Liu <song@...nel.org>, Muchun Song <songmuchun@...edance.com>,
        Christoph Hellwig <hch@....de>,
        Vlastimil Babka <vbabka@...e.cz>,
        David Hildenbrand <david@...hat.com>,
        Rik van Riel <riel@...riel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: page_alloc.c:(.init.text+0xa7c): undefined reference to `vmalloc_huge'

Linux mainline arm architecture tinyconfig and allnoconfig builds failed.
These builds have config mmu not set.

# CONFIG_MMU is not set


Regressions found on arm:

   - arm-clang-14-tinyconfig
   - arm-clang-nightly-tinyconfig
   - arm-gcc-11-tinyconfig
   - arm-clang-13-tinyconfig
   - arm-gcc-11-allnoconfig
   - arm-clang-14-allnoconfig
   - arm-clang-nightly-allnoconfig
   - arm-gcc-8-allnoconfig
   - arm-clang-11-allnoconfig
   - arm-clang-11-tinyconfig
   - arm-gcc-9-allnoconfig
   - arm-gcc-9-tinyconfig
   - arm-gcc-10-allnoconfig
   - arm-gcc-8-tinyconfig
   - arm-gcc-10-tinyconfig
   - arm-clang-12-allnoconfig
   - arm-clang-12-tinyconfig
   - arm-clang-13-allnoconfig


Build error:
------------
arm-linux-gnueabihf-ld: mm/page_alloc.o: in function `alloc_large_system_hash':
page_alloc.c:(.init.text+0xa7c): undefined reference to `vmalloc_huge'
make[1]: *** [Makefile:1158: vmlinux] Error 1


# To install tuxmake on your system globally:
# sudo pip3 install -U tuxmake

tuxmake --runtime podman --target-arch arm --toolchain gcc-11
--kconfig tinyconfig


Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>


--
Linaro LKFT
https://lkft.linaro.org

[1] https://builds.tuxbuild.com/28GNGapkjXsbIbRSnHoGILqmaFp/