linux-kernel - Re: [PATCH v2 0/6] ARM: clang support

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Date:   Mon, 07 May 2018 22:24:51 +0200
From:   Stefan Agner <stefan@...er.ch>
To:     linux@...linux.org.uk, ard.biesheuvel@...aro.org, arnd@...db.de
Cc:     robin.murphy@....com, nicolas.pitre@...aro.org,
        marc.zyngier@....com, behanw@...verseincode.com,
        keescook@...omium.org, Bernhard.Rosenkranzer@...aro.org,
        mka@...omium.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/6] ARM: clang support

On 25.03.2018 20:09, Stefan Agner wrote:
> This patchset fixes some remaining issues when building the ARM
> architecture using LLVM/clang.  The patchset requires the following
> kbuild change:
> https://lkml.org/lkml/2018/3/19/1756
> 
> With that patch and this patchset applied and I can successfully
> build (and boot) the multi_v7_defconfig with 4.16-rc5 using clang
> 5.0.1 and 6.0.0.

Russel, Arnd, any comment on this patch series? How can we get it
merged?

I was thinking patch 1 through armsoc since that is the way previous
patches have been merged.

Note sure about patch 2, Russel can you comment on Thierry's email?

And patch 3 through 6 through Russel's tree?

--
Stefan

> 
> This version also adds a patch to mitigate a often printed warning
> about duplicate 'const' declaration specifier when using get_user().
> 
> Stefan Agner (6):
>   bus: arm-cci: use asm unreachable
>   efi/libstub/arm: add support for building with clang
>   ARM: trusted_foundations: do not use naked function
>   ARM: drop no-thumb-interwork in EABI mode
>   ARM: add support for building ARM kernel with clang
>   ARM: uaccess: remove const to avoid duplicate specifier
> 
>  arch/arm/Makefile                       |  2 +-
>  arch/arm/boot/compressed/Makefile       |  2 +-
>  arch/arm/firmware/trusted_foundations.c | 14 +++++++++-----
>  arch/arm/include/asm/uaccess.h          |  2 +-
>  drivers/bus/arm-cci.c                   |  2 --
>  drivers/firmware/efi/libstub/Makefile   |  3 ++-
>  6 files changed, 14 insertions(+), 11 deletions(-)