[linux-next:master 4811/17742] arch/arm64/kvm/vgic/vgic-irs-v5.c:1016:15: warning: variable 'addr' set but not used

[linux-next:master 4811/17742] arch/arm64/kvm/vgic/vgic-irs-v5.c:1016:15: warning: variable 'addr' set but not used

[kernel test robot]

Hi Sascha,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   3d229ce89862b8e82d71a9e11d6f840ca272a6d6
commit: 71091136d1452b6125579b210d29efec3e79681a [4811/17742] KVM: arm64: gic-v5: Handle userspace accesses to IRS MMIO region
config: arm64-defconfig (https://download.01.org/0day-ci/archive/20261021/202610210232.uzFGXnjw-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 16.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261021/202610210232.uzFGXnjw-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610210232.uzFGXnjw-lkp@intel.com/

All warnings (new ones prefixed by >>):

   arch/arm64/kvm/vgic/vgic-irs-v5.c: In function 'vgic_v5_has_attr_regs':
>> arch/arm64/kvm/vgic/vgic-irs-v5.c:1016:15: warning: variable 'addr' set but not used [-Wunused-but-set-variable=]
    1016 |         gpa_t addr, offset;
         |               ^~~~


vim +/addr +1016 arch/arm64/kvm/vgic/vgic-irs-v5.c

  1010	
  1011	int vgic_v5_has_attr_regs(struct kvm_device *dev, struct kvm_device_attr *attr)
  1012	{
  1013		const struct vgic_register_region *region;
  1014		struct vgic_reg_attr reg_attr;
  1015		struct kvm_vcpu *vcpu;
> 1016		gpa_t addr, offset;
  1017		int ret, align;
  1018	
  1019		ret = vgic_v5_parse_attr(dev, attr, &reg_attr);
  1020		if (ret)
  1021			return ret;
  1022	
  1023		vcpu = reg_attr.vcpu;
  1024		addr = reg_attr.addr;
  1025	
  1026		if (attr->group == KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS)
  1027			return vgic_v5_has_cpu_sysregs_attr(vcpu, attr);
  1028	
  1029		offset = attr->attr;
  1030	
  1031		region = vgic_find_mmio_region(vgic_v5_irs_registers,
  1032					       ARRAY_SIZE(vgic_v5_irs_registers),
  1033					       offset);
  1034		if (!region)
  1035			return -ENXIO;
  1036	
  1037		align = region->access_flags & VGIC_ACCESS_64bit ? 0x7 : 0x3;
  1038		if (offset & align)
  1039			return -EINVAL;
  1040	
  1041		return 0;
  1042	}
  1043	

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