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authorArnd Bergmann <arnd@arndb.de>2017-09-11 23:07:50 +0300
committerRob Herring <robh@kernel.org>2017-09-19 20:20:44 +0300
commitaa767cfb75341a6b93742f4d7d1589ac2532c29e (patch)
treeaf6c6d16060b006fc49759ec639cabb33d75d3c0
parent2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff)
downloadlinux-aa767cfb75341a6b93742f4d7d1589ac2532c29e.tar.xz
of: provide inline helper for of_find_device_by_node
The ipmmu-vmsa driver fails in compile-testing on non-OF platforms: drivers/iommu/ipmmu-vmsa.o: In function `ipmmu_of_xlate': ipmmu-vmsa.c:(.text+0x740): undefined reference to `of_find_device_by_node' It would be reasonable to assume that this interface works but returns failure on non-OF builds, like it does on machines that have been booted in another way, so this adds another inline function helper. Fixes: 7b2d59611fef ("iommu/ipmmu-vmsa: Replace local utlb code with fwspec ids") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <robh@kernel.org>
-rw-r--r--include/linux/of_platform.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index e0d1946270f3..fb908e598348 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -57,7 +57,14 @@ extern const struct of_device_id of_default_bus_match_table[];
extern struct platform_device *of_device_alloc(struct device_node *np,
const char *bus_id,
struct device *parent);
+#ifdef CONFIG_OF
extern struct platform_device *of_find_device_by_node(struct device_node *np);
+#else
+static inline struct platform_device *of_find_device_by_node(struct device_node *np)
+{
+ return NULL;
+}
+#endif
/* Platform devices and busses creation */
extern struct platform_device *of_platform_device_create(struct device_node *np,