x86: fix UML and -regparm=3
introduce the "asmregparm" calling convention: for functions
implemented in assembly with a fixed regparm input parameters
calling convention.
mark the semaphore and rwsem slowpath functions with that.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index ff203dd..ceeeb5e 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -13,6 +13,10 @@
#define asmlinkage CPP_ASMLINKAGE
#endif
+#ifndef asmregparm
+# define asmregparm
+#endif
+
#ifndef prevent_tail_call
# define prevent_tail_call(ret) do { } while (0)
#endif