pipe: allow passing around of ops private pointer

[safe/jmp/linux-2.6] / include / linux / io.h

diff --git a/include/linux/io.h b/include/linux/io.h
index c244a0c..8423dd3 100644 (file)
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -27,15 +27,36 @@ struct device;
 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
 void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
 
+#ifdef CONFIG_MMU
 int ioremap_page_range(unsigned long addr, unsigned long end,
                       unsigned long phys_addr, pgprot_t prot);
+#else
+static inline int ioremap_page_range(unsigned long addr, unsigned long end,
+                                    unsigned long phys_addr, pgprot_t prot)
+{
+       return 0;
+}
+#endif
 
 /*
  * Managed iomap interface
  */
+#ifdef CONFIG_HAS_IOPORT
 void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
                               unsigned int nr);
 void devm_ioport_unmap(struct device *dev, void __iomem *addr);
+#else
+static inline void __iomem *devm_ioport_map(struct device *dev,
+                                            unsigned long port,
+                                            unsigned int nr)
+{
+       return NULL;
+}
+
+static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
+{
+}
+#endif
 
 void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
                            unsigned long size);