KVM: s390: Mark __kvm_s390_init() and its descendants as __init

Tag __kvm_s390_init() and its unique helpers as __init.  These functions
are only ever called during module_init(), but could not be tagged
accordingly while they were invoked from the common kvm_arch_init(),
which is not __init because of x86.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20221130230934.1014142-29-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/s390/kvm/interrupt.c

@@ -3411,7 +3411,7 @@ void kvm_s390_gib_destroy(void)
 	gib = NULL;
 }
 
-int kvm_s390_gib_init(u8 nisc)
+int __init kvm_s390_gib_init(u8 nisc)
 {
 	int rc = 0;
 

arch/s390/kvm/kvm-s390.c

@@ -366,7 +366,7 @@ static __always_inline void __insn32_query(unsigned int opcode, u8 *query)
 #define INSN_SORTL 0xb938
 #define INSN_DFLTCC 0xb939
 
-static void kvm_s390_cpu_feat_init(void)
+static void __init kvm_s390_cpu_feat_init(void)
 {
 	int i;
 
@@ -469,7 +469,7 @@ static void kvm_s390_cpu_feat_init(void)
 	 */
 }
 
-static int __kvm_s390_init(void)
+static int __init __kvm_s390_init(void)
 {
 	int rc = -ENOMEM;
 

arch/s390/kvm/kvm-s390.h

@@ -470,7 +470,7 @@ void kvm_s390_gisa_clear(struct kvm *kvm);
 void kvm_s390_gisa_destroy(struct kvm *kvm);
 void kvm_s390_gisa_disable(struct kvm *kvm);
 void kvm_s390_gisa_enable(struct kvm *kvm);
-int kvm_s390_gib_init(u8 nisc);
+int __init kvm_s390_gib_init(u8 nisc);
 void kvm_s390_gib_destroy(void);
 
 /* implemented in guestdbg.c */

arch/s390/kvm/pci.c

@@ -672,7 +672,7 @@ int kvm_s390_pci_zpci_op(struct kvm *kvm, struct kvm_s390_zpci_op *args)
 	return r;
 }
 
-int kvm_s390_pci_init(void)
+int __init kvm_s390_pci_init(void)
 {
 	zpci_kvm_hook.kvm_register = kvm_s390_pci_register_kvm;
 	zpci_kvm_hook.kvm_unregister = kvm_s390_pci_unregister_kvm;

arch/s390/kvm/pci.h

@@ -60,7 +60,7 @@ void kvm_s390_pci_clear_list(struct kvm *kvm);
 
 int kvm_s390_pci_zpci_op(struct kvm *kvm, struct kvm_s390_zpci_op *args);
 
-int kvm_s390_pci_init(void);
+int __init kvm_s390_pci_init(void);
 void kvm_s390_pci_exit(void);
 
 static inline bool kvm_s390_pci_interp_allowed(void)