v4.19.13 snapshot.
diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h
new file mode 100644
index 0000000..1b95da3
--- /dev/null
+++ b/arch/s390/include/asm/linkage.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#include <linux/stringify.h>
+
+#define __ALIGN .align 4, 0x07
+#define __ALIGN_STR __stringify(__ALIGN)
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Helper macro for exception table entries
+ */
+#define EX_TABLE(_fault, _target) \
+ ".section __ex_table,\"a\"\n" \
+ ".align 4\n" \
+ ".long (" #_fault ") - .\n" \
+ ".long (" #_target ") - .\n" \
+ ".previous\n"
+
+#else /* __ASSEMBLY__ */
+
+#define EX_TABLE(_fault, _target) \
+ .section __ex_table,"a" ; \
+ .align 4 ; \
+ .long (_fault) - . ; \
+ .long (_target) - . ; \
+ .previous
+
+#endif /* __ASSEMBLY__ */
+#endif