kvm_riscv_nacl_sync_hfence_available
DECLARE_STATIC_KEY_FALSE(kvm_riscv_nacl_sync_hfence_available);
static_branch_unlikely(&kvm_riscv_nacl_sync_hfence_available)
if (kvm_riscv_nacl_sync_hfence_available()) {
DEFINE_STATIC_KEY_FALSE(kvm_riscv_nacl_sync_hfence_available);
static_branch_enable(&kvm_riscv_nacl_sync_hfence_available);