linux-kernel - [atishp04:kvm_isa_ext_v1 1/1] arch/riscv/include/asm/kvm_host.h:173:29: error: 'RISCV_ISA_EXT_MAX' undeclared here (not in a function); did you mean 'KVM_RISCV_ISA_EXT

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Date:   Thu, 16 Jun 2022 14:26:20 +0800
From:   kernel test robot <lkp@...el.com>
To:     Atish Patra <atishp@...osinc.com>
Cc:     kbuild-all@...ts.01.org, Atish Patra <Atish.Patra@....com>,
        linux-kernel@...r.kernel.org
Subject: [atishp04:kvm_isa_ext_v1 1/1]
 arch/riscv/include/asm/kvm_host.h:173:29: error: 'RISCV_ISA_EXT_MAX'
 undeclared here (not in a function); did you mean 'KVM_RISCV_ISA_EXT_MAX'?

tree:   https://github.com/atishp04/linux kvm_isa_ext_v1
head:   f581904c5e3c943b3ad5fbaf91606d5f5e12018a
commit: f581904c5e3c943b3ad5fbaf91606d5f5e12018a [1/1] RISC-V: KVM: Improve ISA extension by using a bitmap
config: riscv-allnoconfig (https://download.01.org/0day-ci/archive/20220616/202206161421.E8pdfIAD-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.3.0
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
        # https://github.com/atishp04/linux/commit/f581904c5e3c943b3ad5fbaf91606d5f5e12018a
        git remote add atishp04 https://github.com/atishp04/linux
        git fetch --no-tags atishp04 kvm_isa_ext_v1
        git checkout f581904c5e3c943b3ad5fbaf91606d5f5e12018a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=riscv prepare

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/vdso/const.h:5,
                    from include/linux/const.h:4,
                    from arch/riscv/include/asm/bug.h:10,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:6,
                    from arch/riscv/kernel/asm-offsets.c:10:
>> arch/riscv/include/asm/kvm_host.h:173:29: error: 'RISCV_ISA_EXT_MAX' undeclared here (not in a function); did you mean 'KVM_RISCV_ISA_EXT_MAX'?
     173 |         DECLARE_BITMAP(isa, RISCV_ISA_EXT_MAX);
         |                             ^~~~~~~~~~~~~~~~~
   include/uapi/linux/const.h:34:40: note: in definition of macro '__KERNEL_DIV_ROUND_UP'
      34 | #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
         |                                        ^
   include/linux/types.h:11:28: note: in expansion of macro 'BITS_TO_LONGS'
      11 |         unsigned long name[BITS_TO_LONGS(bits)]
         |                            ^~~~~~~~~~~~~
   arch/riscv/include/asm/kvm_host.h:173:9: note: in expansion of macro 'DECLARE_BITMAP'
     173 |         DECLARE_BITMAP(isa, RISCV_ISA_EXT_MAX);
         |         ^~~~~~~~~~~~~~
   make[2]: *** [scripts/Makefile.build:117: arch/riscv/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1200: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +173 arch/riscv/include/asm/kvm_host.h

   164	
   165	struct kvm_vcpu_arch {
   166		/* VCPU ran at least once */
   167		bool ran_atleast_once;
   168	
   169		/* Last Host CPU on which Guest VCPU exited */
   170		int last_exit_cpu;
   171	
   172		/* ISA feature bits (similar to MISA) */
 > 173		DECLARE_BITMAP(isa, RISCV_ISA_EXT_MAX);
   174	
   175		/* SSCRATCH, STVEC, and SCOUNTEREN of Host */
   176		unsigned long host_sscratch;
   177		unsigned long host_stvec;
   178		unsigned long host_scounteren;
   179	
   180		/* CPU context of Host */
   181		struct kvm_cpu_context host_context;
   182	
   183		/* CPU context of Guest VCPU */
   184		struct kvm_cpu_context guest_context;
   185	
   186		/* CPU CSR context of Guest VCPU */
   187		struct kvm_vcpu_csr guest_csr;
   188	
   189		/* CPU context upon Guest VCPU reset */
   190		struct kvm_cpu_context guest_reset_context;
   191	
   192		/* CPU CSR context upon Guest VCPU reset */
   193		struct kvm_vcpu_csr guest_reset_csr;
   194	
   195		/*
   196		 * VCPU interrupts
   197		 *
   198		 * We have a lockless approach for tracking pending VCPU interrupts
   199		 * implemented using atomic bitops. The irqs_pending bitmap represent
   200		 * pending interrupts whereas irqs_pending_mask represent bits changed
   201		 * in irqs_pending. Our approach is modeled around multiple producer
   202		 * and single consumer problem where the consumer is the VCPU itself.
   203		 */
   204		unsigned long irqs_pending;
   205		unsigned long irqs_pending_mask;
   206	
   207		/* VCPU Timer */
   208		struct kvm_vcpu_timer timer;
   209	
   210		/* HFENCE request queue */
   211		spinlock_t hfence_lock;
   212		unsigned long hfence_head;
   213		unsigned long hfence_tail;
   214		struct kvm_riscv_hfence hfence_queue[KVM_RISCV_VCPU_MAX_HFENCE];
   215	
   216		/* MMIO instruction details */
   217		struct kvm_mmio_decode mmio_decode;
   218	
   219		/* SBI context */
   220		struct kvm_sbi_context sbi_context;
   221	
   222		/* Cache pages needed to program page tables with spinlock held */
   223		struct kvm_mmu_memory_cache mmu_page_cache;
   224	
   225		/* VCPU power-off state */
   226		bool power_off;
   227	
   228		/* Don't run the VCPU (blocked) */
   229		bool pause;
   230	};
   231	

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