v4.19.13 snapshot.
diff --git a/include/linux/ras.h b/include/linux/ras.h
new file mode 100644
index 0000000..7c3debb
--- /dev/null
+++ b/include/linux/ras.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __RAS_H__
+#define __RAS_H__
+
+#include <asm/errno.h>
+#include <linux/uuid.h>
+#include <linux/cper.h>
+
+#ifdef CONFIG_DEBUG_FS
+int ras_userspace_consumers(void);
+void ras_debugfs_init(void);
+int ras_add_daemon_trace(void);
+#else
+static inline int ras_userspace_consumers(void) { return 0; }
+static inline void ras_debugfs_init(void) { }
+static inline int ras_add_daemon_trace(void) { return 0; }
+#endif
+
+#ifdef CONFIG_RAS_CEC
+void __init cec_init(void);
+int __init parse_cec_param(char *str);
+int cec_add_elem(u64 pfn);
+#else
+static inline void __init cec_init(void) { }
+static inline int cec_add_elem(u64 pfn) { return -ENODEV; }
+#endif
+
+#ifdef CONFIG_RAS
+void log_non_standard_event(const guid_t *sec_type,
+ const guid_t *fru_id, const char *fru_text,
+ const u8 sev, const u8 *err, const u32 len);
+void log_arm_hw_error(struct cper_sec_proc_arm *err);
+#else
+static inline void
+log_non_standard_event(const guid_t *sec_type,
+ const guid_t *fru_id, const char *fru_text,
+ const u8 sev, const u8 *err, const u32 len)
+{ return; }
+static inline void
+log_arm_hw_error(struct cper_sec_proc_arm *err) { return; }
+#endif
+
+#endif /* __RAS_H__ */