s390/pci: Implement IRQ functions if !PCI

commit c46b54f7406780ec4cf9c9124d1cfb777674dc70 upstream.

All architectures must implement IRQ functions.  Since various
dependencies on !S390 were removed, there are various drivers that can
be selected but will fail to link.  Provide a dummy implementation of
these functions for the !PCI case.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 64 insertions, 33 deletions

diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 1630f439cd2a..2032846aff91 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -313,3 +313,67 @@ void measurement_alert_subclass_unregister(void)
 	spin_unlock(&ma_subclass_lock);
 }
 EXPORT_SYMBOL(measurement_alert_subclass_unregister);
+
+void synchronize_irq(unsigned int irq)
+{
+	/*
+	 * Not needed, the handler is protected by a lock and IRQs that occur
+	 * after the handler is deleted are just NOPs.
+	 */
+}
+EXPORT_SYMBOL_GPL(synchronize_irq);
+
+#ifndef CONFIG_PCI
+
+/* Only PCI devices have dynamically-defined IRQ handlers */
+
+int request_irq(unsigned int irq, irq_handler_t handler,
+		unsigned long irqflags, const char *devname, void *dev_id)
+{
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(request_irq);
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+	WARN_ON(1);
+}
+EXPORT_SYMBOL_GPL(free_irq);
+
+void enable_irq(unsigned int irq)
+{
+	WARN_ON(1);
+}
+EXPORT_SYMBOL_GPL(enable_irq);
+
+void disable_irq(unsigned int irq)
+{
+	WARN_ON(1);
+}
+EXPORT_SYMBOL_GPL(disable_irq);
+
+#endif /* !CONFIG_PCI */
+
+void disable_irq_nosync(unsigned int irq)
+{
+	disable_irq(irq);
+}
+EXPORT_SYMBOL_GPL(disable_irq_nosync);
+
+unsigned long probe_irq_on(void)
+{
+	return 0;
+}
+EXPORT_SYMBOL_GPL(probe_irq_on);
+
+int probe_irq_off(unsigned long val)
+{
+	return 0;
+}
+EXPORT_SYMBOL_GPL(probe_irq_off);
+
+unsigned int probe_irq_mask(unsigned long val)
+{
+	return val;
+}
+EXPORT_SYMBOL_GPL(probe_irq_mask);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 27b4c17855b9..4fd5b5a44973 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -306,15 +306,6 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len)
 	return rc;
 }
 
-void synchronize_irq(unsigned int irq)
-{
-	/*
-	 * Not needed, the handler is protected by a lock and IRQs that occur
-	 * after the handler is deleted are just NOPs.
-	 */
-}
-EXPORT_SYMBOL_GPL(synchronize_irq);
-
 void enable_irq(unsigned int irq)
 {
 	struct msi_desc *msi = irq_get_msi_desc(irq);
@@ -331,30 +322,6 @@ void disable_irq(unsigned int irq)
 }
 EXPORT_SYMBOL_GPL(disable_irq);
 
-void disable_irq_nosync(unsigned int irq)
-{
-	disable_irq(irq);
-}
-EXPORT_SYMBOL_GPL(disable_irq_nosync);
-
-unsigned long probe_irq_on(void)
-{
-	return 0;
-}
-EXPORT_SYMBOL_GPL(probe_irq_on);
-
-int probe_irq_off(unsigned long val)
-{
-	return 0;
-}
-EXPORT_SYMBOL_GPL(probe_irq_off);
-
-unsigned int probe_irq_mask(unsigned long val)
-{
-	return val;
-}
-EXPORT_SYMBOL_GPL(probe_irq_mask);
-
 void pcibios_fixup_bus(struct pci_bus *bus)
 {
 }