diff --git a/lib/string.c b/lib/string.c
index e5ba3f214d23..c9fd2c59c30b 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -267,7 +267,30 @@ ssize_t strscpy_pad(char *dest, const char *src, size_t count)
 
 	return written;
 }
-EXPORT_SYMBOL(strscpy_pad);
+
+/**
+ * stpcpy - copy a string from src to dest returning a pointer to the new end
+ *          of dest, including src's %NUL-terminator. May overrun dest.
+ * @dest: pointer to end of string being copied into. Must be large enough
+ *        to receive copy.
+ * @src: pointer to the beginning of string being copied from. Must not overlap
+ *       dest.
+ *
+ * stpcpy differs from strcpy in a key way: the return value is the new
+ * %NUL-terminated character. (for strcpy, the return value is a pointer to
+ * src. This interface is considered unsafe as it doesn't perform bounds
+ * checking of the inputs. As such it's not recommended for usage. Instead,
+ * its definition is provided in case the compiler lowers other libcalls to
+ * stpcpy.
+ */
+char *stpcpy(char *__restrict__ dest, const char *__restrict__ src);
+char *stpcpy(char *__restrict__ dest, const char *__restrict__ src)
+{
+	while ((*dest++ = *src++) != '\0')
+		/* nothing */;
+	return --dest;
+}
+EXPORT_SYMBOL(stpcpy);
 
 #ifndef __HAVE_ARCH_STRCAT
 /**