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diff --git a/include/vsprintf.h b/include/vsprintf.h
index 2ac41d1923..33d05aa0c6 100644
--- a/include/vsprintf.h
+++ b/include/vsprintf.h
@@ -2,12 +2,15 @@
  * (C) Copyright 2000-2009
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __VSPRINTF_H
 #define __VSPRINTF_H
 
+#include <stdarg.h>
+#include <linux/types.h>
+
 ulong simple_strtoul(const char *cp, char **endp, unsigned int base);
 
 /**
@@ -39,9 +42,58 @@ int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
 unsigned long long simple_strtoull(const char *cp, char **endp,
 					unsigned int base);
 long simple_strtol(const char *cp, char **endp, unsigned int base);
+
+/**
+ * trailing_strtol() - extract a trailing integer from a string
+ *
+ * Given a string this finds a trailing number on the string and returns it.
+ * For example, "abc123" would return 123.
+ *
+ * @str:	String to exxamine
+ * @return training number if found, else -1
+ */
+long trailing_strtol(const char *str);
+
+/**
+ * trailing_strtoln() - extract a trailing integer from a fixed-length string
+ *
+ * Given a fixed-length string this finds a trailing number on the string
+ * and returns it. For example, "abc123" would return 123. Only the
+ * characters between @str and @end - 1 are examined. If @end is NULL, it is
+ * set to str + strlen(str).
+ *
+ * @str:	String to exxamine
+ * @end:	Pointer to end of string to examine, or NULL to use the
+ *		whole string
+ * @return training number if found, else -1
+ */
+long trailing_strtoln(const char *str, const char *end);
+
+/**
+ * panic() - Print a message and reset/hang
+ *
+ * Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is
+ * defined, then it will hang instead of resetting.
+ *
+ * @param fmt:	printf() format string for message, which should not include
+ *		\n, followed by arguments
+ */
 void panic(const char *fmt, ...)
 		__attribute__ ((format (__printf__, 1, 2), noreturn));
 
+/**
+ * panic_str() - Print a message and reset/hang
+ *
+ * Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is
+ * defined, then it will hang instead of resetting.
+ *
+ * This function can be used instead of panic() when your board does not
+ * already use printf(), * to keep code size small.
+ *
+ * @param fmt:	string to display, which should not include \n
+ */
+void panic_str(const char *str) __attribute__ ((noreturn));
+
 /**
  * Format a string and place it in a buffer
  *
@@ -61,12 +113,10 @@ int sprintf(char *buf, const char *fmt, ...)
  * Format a string and place it in a buffer (va_list version)
  *
  * @param buf	The buffer to place the result into
- * @param size	The size of the buffer, including the trailing null space
  * @param fmt	The format string to use
  * @param args	Arguments for the format string
  * @return the number of characters which have been written into
- * the @buf not including the trailing '\0'. If @size is == 0 the function
- * returns 0.
+ * the @buf not including the trailing '\0'.
  *
  * If you're not already dealing with a va_list consider using scnprintf().
  *
@@ -75,7 +125,6 @@ int sprintf(char *buf, const char *fmt, ...)
 int vsprintf(char *buf, const char *fmt, va_list args);
 char *simple_itoa(ulong i);
 
-#ifdef CONFIG_SYS_VSNPRINTF
 /**
  * Format a string and place it in a buffer
  *
@@ -150,17 +199,6 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
  * See the vsprintf() documentation for format string extensions over C99.
  */
 int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
-#else
-/*
- * Use macros to silently drop the size parameter. Note that the 'cn'
- * versions are the same as the 'n' versions since the functions assume
- * there is always enough buffer space when !CONFIG_SYS_VSNPRINTF
- */
-#define snprintf(buf, size, fmt, args...) sprintf(buf, fmt, ##args)
-#define scnprintf(buf, size, fmt, args...) sprintf(buf, fmt, ##args)
-#define vsnprintf(buf, size, fmt, args...) vsprintf(buf, fmt, ##args)
-#define vscnprintf(buf, size, fmt, args...) vsprintf(buf, fmt, ##args)
-#endif /* CONFIG_SYS_VSNPRINTF */
 
 /**
  * print_grouped_ull() - print a value with digits grouped by ','
@@ -173,4 +211,6 @@ int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
  */
 void print_grouped_ull(unsigned long long int_val, int digits);
 
+bool str2off(const char *p, loff_t *num);
+bool str2long(const char *p, ulong *num);
 #endif