linux/kernel.h: define SYMBOL_PREFIX

James Hogan · rustyrussell · commit cbdbf2abb784 · 2012-12-03T13:05:54.000+10:30
Define SYMBOL_PREFIX to be the same as CONFIG_SYMBOL_PREFIX if set by
the architecture, or "" otherwise. This avoids the need for ugly #ifdefs
whenever symbols are referenced in asm blocks.

Signed-off-by: James Hogan &lt;james.hogan@imgtec.com&gt;
Cc: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Cc: Joe Perches &lt;joe@perches.com&gt;
Cc: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
Cc: Jean Delvare &lt;khali@linux-fr.org&gt;
Cc: Ralf Baechle &lt;ralf@linux-mips.org&gt;
Cc: Mike Frysinger &lt;vapier@gentoo.org&gt;
Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
@@ -701,6 +701,13 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
 #define COMPACTION_BUILD 0
 #endif
 
+/* This helps us to avoid #ifdef CONFIG_SYMBOL_PREFIX */
+#ifdef CONFIG_SYMBOL_PREFIX
+#define SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX
+#else
+#define SYMBOL_PREFIX ""
+#endif
+
 /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
 # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD
