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Date: Fri, 11 Sep 2020 07:33:23 +0100 From: Suzuki K Poulose <suzuki.poulose@....com> To: tuanphan@...eremail.onmicrosoft.com Cc: will@...nel.org, mark.rutland@....com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v5] perf: arm_dsu: Support DSU ACPI devices On 09/10/2020 08:07 PM, Tuan Phan wrote: > Hi Will, > >> On Sep 10, 2020, at 6:40 AM, kernel test robot <lkp@...el.com> wrote: >> >> Hi Tuan, >> >> Thank you for the patch! Perhaps something to improve: >> >> [auto build test WARNING on linus/master] >> [also build test WARNING on v5.9-rc4 next-20200910] >> [If your patch is applied to the wrong git tree, kindly drop us a note. >> And when submitting patch, we suggest to use '--base' as documented in >> https://git-scm.com/docs/git-format-patch] >> >> url: https://github.com/0day-ci/linux/commits/Tuan-Phan/perf-arm_dsu-Support-DSU-ACPI-devices/20200910-105630 >> base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ab29a807a7ddaa7c84d2f4cb8d29e74e33759072 >> config: arm64-randconfig-r012-20200909 (attached as .config) >> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 0a5dc7effb191eff740e0e7ae7bd8e1f6bdb3ad9) >> 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 >> # save the attached .config to linux build tree >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <lkp@...el.com> >> >> All warnings (new ones prefixed by >>): >> >>>> drivers/perf/arm_dsu_pmu.c:799:36: warning: unused variable 'dsu_pmu_acpi_match' [-Wunused-const-variable] >> static const struct acpi_device_id dsu_pmu_acpi_match[] = { >> ^ >> 1 warning generated. >> > > Do you need me to fix this warning when CONFIG_ACPI not defined? Yes, please. The kernel should compile fine in any config. Any compiler warning is not good (unless the compiler is wrong). Cheers Suzuki
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