2 files changed, 18 insertions, 1 deletions

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 80d1f399ee51..64c6ee22eefd 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -409,6 +409,13 @@ do {									\
 /* Keep this the last entry.  */
 #define R_PPC64_NUM             107
 
+/* There's actually a third entry here, but it's unused */
+struct ppc64_opd_entry
+{
+        unsigned long funcaddr;
+        unsigned long r2;
+};
+
 #ifdef  __KERNEL__
 
 #ifdef CONFIG_SPU_BASE
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 7710e9e6660f..07956f3e7844 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -2,6 +2,8 @@
 #define _ASM_POWERPC_SECTIONS_H
 #ifdef __KERNEL__
 
+#include <linux/elf.h>
+#include <linux/uaccess.h>
 #include <asm-generic/sections.h>
 
 #ifdef __powerpc64__
@@ -17,7 +19,15 @@ static inline int in_kernel_text(unsigned long addr)
 }
 
 #undef dereference_function_descriptor
-void *dereference_function_descriptor(void *);
+static inline void *dereference_function_descriptor(void *ptr)
+{
+        struct ppc64_opd_entry *desc = ptr;
+        void *p;
+
+        if (!probe_kernel_address(&desc->funcaddr, p))
+                ptr = p;
+        return ptr;
+}
 
 #endif