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Subject: Re: [PATCH] arm64/sve: fix genksyms generation
To:     Arnd Bergmann <arnd@arndb.de>, Will Deacon <will.deacon@arm.com>
Cc:     Mark Rutland <mark.rutland@arm.com>,
        Peter Maydell <peter.maydell@linaro.org>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Julien Grall <julien.grall@arm.com>,
        Alan Hayward <alan.hayward@arm.com>,
        Andrew Murray <andrew.murray@arm.com>,
        =?UTF-8?Q?Alex_Benn=c3=a9e?= <alex.bennee@linaro.org>,
        Dave Martin <Dave.Martin@arm.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>
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From:   Laura Abbott <labbott@redhat.com>
Message-ID: <95d721d1-2ccc-321c-f688-15e5bb53c30b@redhat.com>
Date:   Tue, 9 Jul 2019 15:06:49 -0400
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On 6/18/19 10:15 AM, Arnd Bergmann wrote:
> On Tue, Jun 18, 2019 at 2:03 PM Will Deacon <will.deacon@arm.com> wrote:
>>
>>  From 6e004b8824d4eb6a4e61cd794fbc3a761b50135b Mon Sep 17 00:00:00 2001
>> From: Will Deacon <will.deacon@arm.com>
>> Date: Tue, 18 Jun 2019 12:56:49 +0100
>> Subject: [PATCH] genksyms: Teach parse about __uint128_t built-in type
>>
>> __uint128_t crops up in a few files that export symbols to modules, so
>> teach genksyms about it so that we don't end up skipping the CRC
>> generation for some symbols due to the parser failing to spot them:
>>
>>    | WARNING: EXPORT symbol "kernel_neon_begin" [vmlinux] version
>>    |          generation failed, symbol will not be versioned.
>>    | ld: arch/arm64/kernel/fpsimd.o: relocation R_AARCH64_ABS32 against
>>    |     `__crc_kernel_neon_begin' can not be used when making a shared
>>    |     object
>>    | ld: arch/arm64/kernel/fpsimd.o:(.data+0x0): dangerous relocation:
>>    |     unsupported relocation
>>
>> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
>> Reported-by: Arnd Bergmann <arnd@arndb.de>
>> Signed-off-by: Will Deacon <will.deacon@arm.com>
> 
> Looks good to me,
> 
> Acked-by: Arnd Bergmann <arnd@arndb.de>
> 
> I've added this to my randconfig build setup, replacing my earlier
> patch, and will let you know if any problems with it remain.
> 
>           Arnd
> 

I just hit this on 5ad18b2e60b75c7297a998dea702451d33a052ed on Linus'
branch. The fix works for me (feel free to add Tested-by). Is this
already queued up for Linus?

Thanks,
Laura