diff --git a/include/linux/ceph/ceph_debug.h b/include/linux/ceph/ceph_debug.h
index aa2e19182d990eedda70de69bf638db5856811d1..51c5bd64bd0022c8a3f197d846c23448e7bb6a6e 100644
--- a/include/linux/ceph/ceph_debug.h
+++ b/include/linux/ceph/ceph_debug.h
@@ -3,6 +3,8 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/string.h>
+
 #ifdef CONFIG_CEPH_LIB_PRETTYDEBUG
 
 /*
@@ -12,12 +14,10 @@
  */
 
 # if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
-extern const char *ceph_file_part(const char *s, int len);
 #  define dout(fmt, ...)						\
 	pr_debug("%.*s %12.12s:%-4d : " fmt,				\
 		 8 - (int)sizeof(KBUILD_MODNAME), "    ",		\
-		 ceph_file_part(__FILE__, sizeof(__FILE__)),		\
-		 __LINE__, ##__VA_ARGS__)
+		 kbasename(__FILE__), __LINE__, ##__VA_ARGS__)
 # else
 /* faux printk call just to see any compiler warnings. */
 #  define dout(fmt, ...)	do {				\
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 4fd02831beed20fb3d98475c7da2a0b4f2818513..47e94b560ba0d37daf2fb801fa11b9aa39720013 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -56,19 +56,6 @@ static const struct kernel_param_ops param_ops_supported_features = {
 module_param_cb(supported_features, &param_ops_supported_features, NULL,
 		S_IRUGO);
 
-/*
- * find filename portion of a path (/foo/bar/baz -> baz)
- */
-const char *ceph_file_part(const char *s, int len)
-{
-	const char *e = s + len;
-
-	while (e != s && *(e-1) != '/')
-		e--;
-	return e;
-}
-EXPORT_SYMBOL(ceph_file_part);
-
 const char *ceph_msg_type_name(int type)
 {
 	switch (type) {