linux-kernel - Re: gfp.h:20:32: error: redefinition of typedef 'gfp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAKwvOdm+z0PeK3HDyTqvs4ZTq8hf9UKvfMOrTawy3zKG=RzDYg@mail.gmail.com>
Date:   Mon, 22 Feb 2021 09:38:05 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     clang-built-linux <clang-built-linux@...glegroups.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org,
        Nathan Chancellor <nathan@...nel.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Matthew Wilcox <willy@...radead.org>
Subject: Re: gfp.h:20:32: error: redefinition of typedef 'gfp_t' is a C11 feature

On Mon, Feb 22, 2021 at 9:36 AM Naresh Kamboju
<naresh.kamboju@...aro.org> wrote:
>
> arm davinci_all_defconfig config with clang 10, 11 and 12 failing
> on Linux next tag 20210222 due to below listed errors / warnings.
>
>  - arm (davinci_all_defconfig) with clang-10
>  - arm (davinci_all_defconfig) with clang-11
>  - arm (davinci_all_defconfig) with clang-12
>
> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm
> CROSS_COMPILE=arm-linux-gnueabihf- 'HOSTCC=sccache clang' 'CC=sccache
> clang' davinci_all_defconfig
>
> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm
> CROSS_COMPILE=arm-linux-gnueabihf- 'HOSTCC=sccache clang' 'CC=sccache
> clang'
>
>
> include/linux/gfp.h:20:32: error: redefinition of typedef 'gfp_t' is a
> C11 feature [-Werror,-Wtypedef-redefinition]
> typedef unsigned int __bitwise gfp_t;   // repeated here for kernel-doc
>                                ^

Thanks for the report, sounds like this has already been fixed:
https://lore.kernel.org/linux-mm/CAKwvOdmbx+rLv+z-POUq+DPedhrWFEFVHhWW9j5vWpzH0J53Kg@mail.gmail.com/T/#m7d7d6f2905b1be082f31628011d51056a7e94abc

> include/linux/types.h:148:32: note: previous definition is here
> typedef unsigned int __bitwise gfp_t;
>                                ^
> 1 warning generated.
> 1 warning generated.
> 1 warning generated.
> 1 warning generated.
> 1 error generated.
> make[5]: *** [scripts/Makefile.build:287:
> drivers/gpu/drm/tilcdc/tilcdc_plane.o] Error 1
>
> Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>
>
> Step to reproduce:
> ---------------------------
> # TuxMake is a command line tool and Python library that provides
> # portable and repeatable Linux kernel builds across a variety of
> # architectures, toolchains, kernel configurations, and make targets.
> #
> # TuxMake supports the concept of runtimes.
> # See https://docs.tuxmake.org/runtimes/, for that to work it requires
> # that you install podman or docker on your system.
> #
> # To install tuxmake on your system globally:
> # sudo pip3 install -U tuxmake
> #
> # See https://docs.tuxmake.org/ for complete documentation.
>
> tuxmake --runtime podman --target-arch arm --toolchain clang-10
> --kconfig davinci_all_defconfig
>
> build log,
> https://builds.tuxbuild.com/1opbM56yvX4uyeXV8JBwFNz9WEQ/
>
> --
> Linaro LKFT
> https://lkft.linaro.org



-- 
Thanks,
~Nick Desaulniers