diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index e5d408a..4a9e10e 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -181,7 +181,7 @@
  * Compute the hash for the isofs name corresponding to the dentry.
  */
 static int
-isofs_hash_common(const struct dentry *dentry, struct qstr *qstr, int ms)
+isofs_hash_common(struct qstr *qstr, int ms)
 {
 	const char *name;
 	int len;
@@ -202,7 +202,7 @@
  * Compute the hash for the isofs name corresponding to the dentry.
  */
 static int
-isofs_hashi_common(const struct dentry *dentry, struct qstr *qstr, int ms)
+isofs_hashi_common(struct qstr *qstr, int ms)
 {
 	const char *name;
 	int len;
@@ -259,13 +259,13 @@
 static int
 isofs_hash(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hash_common(dentry, qstr, 0);
+	return isofs_hash_common(qstr, 0);
 }
 
 static int
 isofs_hashi(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hashi_common(dentry, qstr, 0);
+	return isofs_hashi_common(qstr, 0);
 }
 
 static int
@@ -286,13 +286,13 @@
 static int
 isofs_hash_ms(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hash_common(dentry, qstr, 1);
+	return isofs_hash_common(qstr, 1);
 }
 
 static int
 isofs_hashi_ms(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hashi_common(dentry, qstr, 1);
+	return isofs_hashi_common(qstr, 1);
 }
 
 static int