linux-kernel - Re: next-20240826: arm: tinyconfig: mm/vma.h:184:26: error: 'USER_PGTABLES_CEILING' undeclared (first use in this function)

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Message-ID: <5697d788-1206-421b-9c9a-3887c90e1c6d@lucifer.local>
Date: Mon, 26 Aug 2024 14:13:05 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: linux-mm <linux-mm@...ck.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>, lkft-triage@...ts.linaro.org,
        Linux Regressions <regressions@...ts.linux.dev>
Subject: Re: next-20240826: arm: tinyconfig: mm/vma.h:184:26: error:
 'USER_PGTABLES_CEILING' undeclared (first use in this function)

On Mon, Aug 26, 2024 at 06:06:59PM GMT, Naresh Kamboju wrote:
> The arm tinyconfig and allnoconfig builds failed on today's Linux next-20240826
> due to following build warnings / errors.

This was resolved in the fixpatch sent in [0] which should hopefully go to
mm-unstable and thus -next soon.

[0]: https://lore.kernel.org/all/7d0ea994-f750-49c5-b392-ae7117369cf3@lucifer.local/

P.S. this message doesn't seem (at least yet) to have hit the linux-mm
mailing list, don't know why.

>
> first seen on next-20240826.
>   Good: next-20240823
>   BAD:  next-20240826
>
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
>
> build log:
> --------
>
> In file included from mm/internal.h:22,
>                  from mm/filemap.c:52:
> mm/vma.h: In function 'init_vma_munmap':
> mm/vma.h:184:26: error: 'USER_PGTABLES_CEILING' undeclared (first use
> in this function)
>   184 |         vms->unmap_end = USER_PGTABLES_CEILING;
>       |                          ^~~~~~~~~~~~~~~~~~~~~
> mm/vma.h:184:26: note: each undeclared identifier is reported only
> once for each function it appears in
> make[4]: *** [scripts/Makefile.build:244: mm/filemap.o] Error 1
> In file included from mm/internal.h:22,
>                  from mm/oom_kill.c:50:
> mm/vma.h: In function 'init_vma_munmap':
> mm/vma.h:184:26: error: 'USER_PGTABLES_CEILING' undeclared (first use
> in this function)
>   184 |         vms->unmap_end = USER_PGTABLES_CEILING;
>       |                          ^~~~~~~~~~~~~~~~~~~~~
>
> Build Log links,
> --------
>  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240826/testrun/24951924/suite/build/test/gcc-13-tinyconfig/log
>
> Build failed comparison:
>  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240826/testrun/24951940/suite/build/test/clang-18-tinyconfig/history/
>
> metadata:
> ----
>   git describe: next-20240826
>   git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
>   git sha: 1ca4237ad9ce29b0c66fe87862f1da54ac56a1e8
>   kernel config:
> https://storage.tuxsuite.com/public/linaro/lkft/builds/2lC5HukjOlVYM52f7n4rm8EXOLG/config
>   build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2lC5HukjOlVYM52f7n4rm8EXOLG/
>   toolchain: clang-18 and gcc-13
>   config: tinyconfig and allnoconfig
>
> Steps to reproduce:
> ---------
>  - tuxmake --runtime podman --target-arch arm --toolchain gcc-13
> --kconfig tinyconfig
>
> --
> Linaro LKFT
> https://lkft.linaro.org