1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index cc3bd583dce1..5457b02fc050 100644
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include "ctype.h"
+#include "string.h"
 
 int memcmp(const void *s1, const void *s2, size_t len)
 {
@@ -155,3 +156,16 @@ char *strstr(const char *s1, const char *s2)
 	}
 	return NULL;
 }
+
+/**
+ * strchr - Find the first occurrence of the character c in the string s.
+ * @s: the string to be searched
+ * @c: the character to search for
+ */
+char *strchr(const char *s, int c)
+{
+	while (*s != (char)c)
+		if (*s++ == '\0')
+			return NULL;
+	return (char *)s;
+}