Re: [linux-next:master 9572/9613] arch/arm64/kernel/mte.c:138:17: error: 'struct thread_struct' has no member named 'sctlr_tcf0'

[Catalin Marinas <catalin.marinas@arm.com>]

On Mon, Nov 30, 2020 at 08:37:50PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   c6b11acc5f85b6e11d128fad8e0b7b223aa7e33f
> commit: 3394cb084a8d6f5125c69406e5f2909921ecdd07 [9572/9613] arm64: mte: add in-kernel MTE helpers
> config: arm64-allyesconfig (attached as .config)
> compiler: aarch64-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3394cb084a8d6f5125c69406e5f2909921ecdd07
>         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout 3394cb084a8d6f5125c69406e5f2909921ecdd07
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    arch/arm64/kernel/mte.c: In function 'set_sctlr_el1_tcf0':
> >> arch/arm64/kernel/mte.c:138:17: error: 'struct thread_struct' has no member named 'sctlr_tcf0'
>      138 |  current->thread.sctlr_tcf0 = tcf0;
>          |                 ^
>    At top level:
>    arch/arm64/kernel/mte.c:130:13: warning: 'set_sctlr_el1_tcf0' defined but not used [-Wunused-function]
>      130 | static void set_sctlr_el1_tcf0(u64 tcf0)

I think that's caused by the conflicts between the arm64 and the mm
trees Stephen reported earlier. They are non-trivial and likely
something got wrong in the conflict resolution (my fault for not
checking before pushing the branch, not blaming Stephen ;)).

I dropped the conflicting patches from the arm64 tree.

Thanks.

-- 
Catalin