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Message-ID: <202503172023.fzyJ3TMB-lkp@intel.com>
Date: Mon, 17 Mar 2025 21:02:47 +0800
From: kernel test robot <lkp@...el.com>
To: Akihiko Odaki <akihiko.odaki@...nix.com>, Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Joey Gouly <joey.gouly@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Andrew Jones <andrew.jones@...ux.dev>
Cc: oe-kbuild-all@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev, linux-kernel@...r.kernel.org,
	devel@...nix.com, Akihiko Odaki <akihiko.odaki@...nix.com>
Subject: Re: [PATCH v5 3/5] KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs

Hi Akihiko,

kernel test robot noticed the following build errors:

[auto build test ERROR on 80e54e84911a923c40d7bee33a34c1b4be148d7a]

url:    https://github.com/intel-lab-lkp/linux/commits/Akihiko-Odaki/KVM-arm64-PMU-Set-raw-values-from-user-to-PM-C-I-NTEN-SET-CLR-PMOVS-SET-CLR/20250315-173731
base:   80e54e84911a923c40d7bee33a34c1b4be148d7a
patch link:    https://lore.kernel.org/r/20250315-pmc-v5-3-ecee87dab216%40daynix.com
patch subject: [PATCH v5 3/5] KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs
config: arm64-randconfig-r122-20250317 (https://download.01.org/0day-ci/archive/20250317/202503172023.fzyJ3TMB-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250317/202503172023.fzyJ3TMB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503172023.fzyJ3TMB-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/arm64/kvm/sys_regs.c: In function 'set_pmu_evcntr':
>> arch/arm64/kvm/sys_regs.c:975:9: error: implicit declaration of function 'kvm_pmu_set_counter_value_user'; did you mean 'kvm_pmu_set_counter_value'? [-Wimplicit-function-declaration]
     975 |         kvm_pmu_set_counter_value_user(vcpu, idx, val);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |         kvm_pmu_set_counter_value


vim +975 arch/arm64/kvm/sys_regs.c

   962	
   963	static int set_pmu_evcntr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r,
   964				  u64 val)
   965	{
   966		u64 idx;
   967	
   968		if (r->CRn == 9 && r->CRm == 13 && r->Op2 == 0)
   969			/* PMCCNTR_EL0 */
   970			idx = ARMV8_PMU_CYCLE_IDX;
   971		else
   972			/* PMEVCNTRn_EL0 */
   973			idx = ((r->CRm & 3) << 3) | (r->Op2 & 7);
   974	
 > 975		kvm_pmu_set_counter_value_user(vcpu, idx, val);
   976		return 0;
   977	}
   978	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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