linux-kernel - [BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes

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Date:   Sat, 14 Jan 2017 16:24:35 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, davem@...emloft.net,
        linux-next@...r.kernel.org
Subject: [BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes - replace
 scalar AES cipher)

Hi,

allyesconfig and multi_v7_defconfig fail to build on recent linux-next
on GCC 6.2.0.

Errors:
../arch/arm/crypto/aes-cipher-core.S: Assembler messages:
../arch/arm/crypto/aes-cipher-core.S:21: Error: selected processor does not support `tt .req ip' in ARM mode
../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movw tt,#:lower16:crypto_ft_tab'
../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movt tt,#:upper16:crypto_ft_tab'

Compiler: arm-linux-gnueabi-gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005

Git bisect pointed to:
first bad commit: [81edb42629758bacdf813dd5e4542ae26e3ad73a] crypto: arm/aes - replace scalar AES cipher

Best regards,
Krzysztof