[arm64:for-next/kernel-mode-neon 5/8] arch/arm64/crypto/sha1-ce-glue.c:41:2: error: implicit declaration of function 'kernel_neon_begin_partial'

[Ard Biesheuvel]

On 10 August 2017 at 09:01, Dave Martin <Dave.Martin at arm.com> wrote:
> On Thu, Aug 10, 2017 at 12:38:09PM +0800, kbuild test robot wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/kernel-mode-neon
>> head:   66c3ec5a712005625437474cf5a04148d7890350
>> commit: cb84d11e1625aa3a081d898ca2640bf3a9ca0e96 [5/8] arm64: neon: Remove support for nested or hardirq kernel-mode NEON
>> config: arm64-defconfig (attached as .config)
>> compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
>> reproduce:
>>         wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>         chmod +x ~/bin/make.cross
>>         git checkout cb84d11e1625aa3a081d898ca2640bf3a9ca0e96
>>         # save the attached .config to linux build tree
>>         make.cross ARCH=arm64
>>
>> Note: the arm64/for-next/kernel-mode-neon HEAD 66c3ec5a712005625437474cf5a04148d7890350 builds fine.
>>       It only hurts bisectibility.
>
> [...]
>
>> All errors (new ones prefixed by >>):
>>
>>    arch/arm64/crypto/sha1-ce-glue.c: In function 'sha1_ce_update':
>> >> arch/arm64/crypto/sha1-ce-glue.c:41:2: error: implicit declaration of function 'kernel_neon_begin_partial' [-Werror=implicit-function-declaration]
>>      kernel_neon_begin_partial(16);
>>      ^~~~~~~~~~~~~~~~~~~~~~~~~
>>    cc1: some warnings being treated as errors
>
> [...]
>
> AFAIK, this is expected, and will be fixed by merging the
> corresponding crypto patches first.  So I don't propose to do
> anything about it.
>
> Have I missed something?
>

No, that seems accurate