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-rw-r--r--arch/s390/include/asm/io.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 6ad9013c67e7..30fd5c84680e 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -39,6 +39,15 @@ static inline void iounmap(volatile void __iomem *addr)
{
}
+static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+ return NULL;
+}
+
+static inline void ioport_unmap(void __iomem *p)
+{
+}
+
/*
* s390 needs a private implementation of pci_iomap since ioremap with its
* offset parameter isn't sufficient. That's because BAR spaces are not