Re: [ammarfaizi2-block:google/android/kernel/common/android12-5.10-2022-03 199/9999] arch/arm64/kvm/perf.c:58:36: error: implicit declaration of function 'perf_num_counters'

[Ammar Faizi]

Hi Marc,

On 4/2/22 4:38 PM, Marc Zyngier wrote:
> Hi Robot,
>
> On Sat, 02 Apr 2022 04:47:04 +0100,
> kernel test robot <lkp@xxxxxxxxx> wrote:
> > Hi Marc,
> >
> > FYI, the error/warning still remains.
> >
> > tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-5.10-2022-03
>
> Oh look, a random Android tree based on ... 5.10.
>
> > head:   64099431c232d4a95f621411747a3972cc1c8061
> > commit: 13dbdc0759fd4b89417f64d399ffa6a86fdc7caf [199/9999] FROMGIT: KVM: arm64: Turn kvm_arm_support_pmu_v3() into a static key
> > config: arm64-randconfig-r024-20220331 (https://download.01.org/0day-ci/archive/20220402/202204021112.ErKMELRr-lkp@xxxxxxxxx/config)
> > compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project cc2e2b80a1f36a28fa7c96c38c2674b10868f09f)
> > 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
> >          # install arm64 cross compiling tool for clang build
> >          # apt-get install binutils-aarch64-linux-gnu
> >          # https://github.com/ammarfaizi2/linux-block/commit/13dbdc0759fd4b89417f64d399ffa6a86fdc7caf
> >          git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
> >          git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-5.10-2022-03
> >          git checkout 13dbdc0759fd4b89417f64d399ffa6a86fdc7caf
> >          # save the config file to linux build tree
> >          mkdir build_dir
> >          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> >
> > All errors (new ones prefixed by >>):
> >
> > > > arch/arm64/kvm/perf.c:58:36: error: implicit declaration of function 'perf_num_counters' [-Werror,-Wimplicit-function-declaration]
> >             if (IS_ENABLED(CONFIG_ARM_PMU) && perf_num_counters() > 0)
> >                                               ^
> >     1 error generated.
>
> $ ls -l arch/arm64/kvm/perf.c
> ls: cannot access 'arch/arm64/kvm/perf.c': No such file or directory
>
> What is the point of testing trees that have no resemblance with
> upstream?

It's my tree. Didn't realize it yields many irrelevant errors like this.
I will stop pushing Android stuff to this tree.

Sorry for bothering you.

--
Ammar Faizi