backports: always activate the of.h backports

This removes the KERNEL_HAS_OF_SUPPORT option from backports.
We can not include linux/of.h on kernel < 2.6.34, because this depends
on some sparc and powerpc only headers. The backport code should still
be included in this header file for such kernel versions, because some
recent drivers are using these functions now on all platforms, but they
will use the empty implementations then.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/backport/backport-include/linux/of.h b/backport/backport-include/linux/of.h
index ad852c10f91e16badb1560aeaf37a8176406eda4..8b2431157be3acb718d5e5877ea2d2bd2898064f 100644 (file)
--- a/backport/backport-include/linux/of.h
+++ b/backport/backport-include/linux/of.h
@@ -3,18 +3,13 @@
 
 #include <linux/version.h>
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
-#define KERNEL_HAS_OF_SUPPORT 1
-#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
-
-#ifdef CONFIG_OF
-#define KERNEL_HAS_OF_SUPPORT 1
-#endif /* CONFIG_OF */
-
-#ifdef KERNEL_HAS_OF_SUPPORT
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34) || defined(CONFIG_OF)
 #include_next <linux/of.h>
+#else
+struct device_node;
+#endif
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0))
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
 #ifdef CONFIG_OF
 extern struct device_node *of_get_child_by_name(const struct device_node *node,
                                                const char *name);
@@ -26,9 +21,9 @@ static inline struct device_node *of_get_child_by_name(
        return NULL;
 }
 #endif /* CONFIG_OF */
-#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)) */
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) */
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0))
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)
 #ifndef CONFIG_OF
 static inline struct device_node *of_find_node_by_name(struct device_node *from,
        const char *name)
@@ -36,8 +31,6 @@ static inline struct device_node *of_find_node_by_name(struct device_node *from,
        return NULL;
 }
 #endif /* CONFIG_OF */
-#endif
-
-#endif /* KERNEL_HAS_OF_SUPPORT */
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0) */
 
 #endif /* _COMPAT_LINUX_OF_H */

diff --git a/backport/compat/compat-3.7.c b/backport/compat/compat-3.7.c
index 675cf293d17a579a364afe65f67dd7220ad09b68..b21b8acfa42776beb340716707e784fbd10946b9 100644 (file)
--- a/backport/compat/compat-3.7.c
+++ b/backport/compat/compat-3.7.c
@@ -254,7 +254,6 @@ int pcie_capability_clear_and_set_dword(struct pci_dev *dev, int pos,
 EXPORT_SYMBOL_GPL(pcie_capability_clear_and_set_dword);
 #endif
 
-#ifdef KERNEL_HAS_OF_SUPPORT
 #ifdef CONFIG_OF
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0))
 /**
@@ -281,4 +280,3 @@ struct device_node *of_get_child_by_name(const struct device_node *node,
 EXPORT_SYMBOL_GPL(of_get_child_by_name);
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0)) */
 #endif /* CONFIG_OF */
-#endif /* KERNEL_HAS_OF_SUPPORT */