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SubjectRe: [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'
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@intel.com> 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@intel.com/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@intel.com>
>>
>> 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

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