Add support for GCC-4.5's __builtin_unreachable() to compiler.h (v2)

[sfrench/cifs-2.6.git] / include / linux / compiler.h

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 04fb5135b4e16eea28e3e847d2ed36c01c78a88a..59f208926d1369f7546df9cc3d5de2b0e11e3a80 100644 (file)
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -144,6 +144,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 # define barrier() __memory_barrier()
 #endif
 
+/* Unreachable code */
+#ifndef unreachable
+# define unreachable() do { } while (1)
+#endif
+
 #ifndef RELOC_HIDE
 # define RELOC_HIDE(ptr, off)                                  \
   ({ unsigned long __ptr;                                      \