kvm_riscv_csr
(offsetof(struct kvm_riscv_csr, name) / sizeof(unsigned long))
unsigned long regs_max = sizeof(struct kvm_riscv_csr) / sizeof(unsigned long);
unsigned long regs_max = sizeof(struct kvm_riscv_csr) / sizeof(unsigned long);
unsigned long n = sizeof(struct kvm_riscv_csr) / sizeof(unsigned long);
int n1 = sizeof(struct kvm_riscv_csr) / sizeof(unsigned long);