[mark:arm64/kvm/fixes-redo 1/8] arch/arm64/kvm/hyp/include/hyp/switch.h:184:21: warning: unused variable 'kvm'

[mark:arm64/kvm/fixes-redo 1/8] arch/arm64/kvm/hyp/include/hyp/switch.h:184:21: warning: unused variable 'kvm'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/kvm/fixes-redo
head:   fc4f18e4b2156554c5481f7dc576c4dce0a7ed78
commit: a72566ddb55d7da9af1c68e0fa38b99f10329877 [1/8] WIP: KVM: arm64: unconditionally configure fine-grain traps
config: arm64-randconfig-001-20250121 (https://download.01.org/0day-ci/archive/20250121/202501210801.BKyLSKdq-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250121/202501210801.BKyLSKdq-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/202501210801.BKyLSKdq-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/arm64/kvm/hyp/vhe/switch.c:7:
   arch/arm64/kvm/hyp/include/hyp/switch.h: In function '__deactivate_traps_hfgxtr':
>> arch/arm64/kvm/hyp/include/hyp/switch.h:184:21: warning: unused variable 'kvm' [-Wunused-variable]
     184 |         struct kvm *kvm = kern_hyp_va(vcpu->kvm);
         |                     ^~~


vim +/kvm +184 arch/arm64/kvm/hyp/include/hyp/switch.h

ce4a36225753a1 Oliver Upton 2023-06-09  174  
f5a5a406b4b8bb Marc Zyngier 2024-02-14  175  #define __deactivate_fgt(htcxt, vcpu, kvm, reg)				\
f5a5a406b4b8bb Marc Zyngier 2024-02-14  176  	do {								\
f5a5a406b4b8bb Marc Zyngier 2024-02-14  177  		write_sysreg_s(ctxt_sys_reg(hctxt, reg),		\
f5a5a406b4b8bb Marc Zyngier 2024-02-14  178  			       SYS_ ## reg);				\
f5a5a406b4b8bb Marc Zyngier 2024-02-14  179  	} while(0)
f5a5a406b4b8bb Marc Zyngier 2024-02-14  180  
e930694e6145eb Marc Zyngier 2023-08-15  181  static inline void __deactivate_traps_hfgxtr(struct kvm_vcpu *vcpu)
ce4a36225753a1 Oliver Upton 2023-06-09  182  {
87f842c6c6543c Marc Zyngier 2024-03-01  183  	struct kvm_cpu_context *hctxt = host_data_ptr(host_ctxt);
f5a5a406b4b8bb Marc Zyngier 2024-02-14 @184  	struct kvm *kvm = kern_hyp_va(vcpu->kvm);
ce4a36225753a1 Oliver Upton 2023-06-09  185  
e930694e6145eb Marc Zyngier 2023-08-15  186  	if (!cpus_have_final_cap(ARM64_HAS_FGT))
e930694e6145eb Marc Zyngier 2023-08-15  187  		return;
ce4a36225753a1 Oliver Upton 2023-06-09  188  
d196c20c6e5868 Marc Zyngier 2024-02-14  189  	__deactivate_fgt(hctxt, vcpu, kvm, HFGRTR_EL2);
d196c20c6e5868 Marc Zyngier 2024-02-14  190  	if (cpus_have_final_cap(ARM64_WORKAROUND_AMPERE_AC03_CPU_38))
e930694e6145eb Marc Zyngier 2023-08-15  191  		write_sysreg_s(ctxt_sys_reg(hctxt, HFGWTR_EL2), SYS_HFGWTR_EL2);
d196c20c6e5868 Marc Zyngier 2024-02-14  192  	else
d196c20c6e5868 Marc Zyngier 2024-02-14  193  		__deactivate_fgt(hctxt, vcpu, kvm, HFGWTR_EL2);
f5a5a406b4b8bb Marc Zyngier 2024-02-14  194  	__deactivate_fgt(hctxt, vcpu, kvm, HFGITR_EL2);
f5a5a406b4b8bb Marc Zyngier 2024-02-14  195  	__deactivate_fgt(hctxt, vcpu, kvm, HDFGRTR_EL2);
f5a5a406b4b8bb Marc Zyngier 2024-02-14  196  	__deactivate_fgt(hctxt, vcpu, kvm, HDFGWTR_EL2);
676f482354886c Fuad Tabba   2023-12-14  197  
0ccd901da1886c Fuad Tabba   2023-12-14  198  	if (cpu_has_amu())
f5a5a406b4b8bb Marc Zyngier 2024-02-14  199  		__deactivate_fgt(hctxt, vcpu, kvm, HAFGRTR_EL2);
ce4a36225753a1 Oliver Upton 2023-06-09  200  }
ce4a36225753a1 Oliver Upton 2023-06-09  201  

:::::: The code at line 184 was first introduced by commit
:::::: f5a5a406b4b8bb6c1fc7a1e92a872bd86061a53f KVM: arm64: Propagate and handle Fine-Grained UNDEF bits

:::::: TO: Marc Zyngier <maz@kernel.org>
:::::: CC: Oliver Upton <oliver.upton@linux.dev>

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https://github.com/intel/lkp-tests/wiki