1 files changed, 16 insertions, 0 deletions

diff --git a/include/asm-powerpc/code-patching.h b/include/asm-powerpc/code-patching.h
index fdb187cbc40d..a45a7ff78725 100644
--- a/include/asm-powerpc/code-patching.h
+++ b/include/asm-powerpc/code-patching.h
@@ -10,6 +10,8 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <asm/types.h>
+
 /* Flags for create_branch:
  * "b"   == create_branch(addr, target, 0);
  * "ba"  == create_branch(addr, target, BRANCH_ABSOLUTE);
@@ -24,4 +26,18 @@ unsigned int create_branch(const unsigned int *addr,
 void patch_branch(unsigned int *addr, unsigned long target, int flags);
 void patch_instruction(unsigned int *addr, unsigned int instr);
 
+static inline unsigned long ppc_function_entry(void *func)
+{
+#ifdef CONFIG_PPC64
+        /*
+         * On PPC64 the function pointer actually points to the function's
+         * descriptor. The first entry in the descriptor is the address
+         * of the function text.
+         */
+        return ((func_descr_t *)func)->entry;
+#else
+        return (unsigned long)func;
+#endif
+}
+
 #endif /* _ASM_POWERPC_CODE_PATCHING_H */