diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 87299bab516c7a3f70e59d24c9ba8a27904153c7..814345b6a245d0f8beb8be2f3db68d2264116520 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -371,7 +371,7 @@ int
 xfs_ioc_attr_list(
 	struct xfs_inode		*dp,
 	void __user			*ubuf,
-	int				bufsize,
+	size_t				bufsize,
 	int				flags,
 	struct xfs_attrlist_cursor __user *ucursor)
 {
diff --git a/fs/xfs/xfs_ioctl.h b/fs/xfs/xfs_ioctl.h
index bab6a5a924077fff1a4631bb905602a7be4a8c33..416e20de66e7dfb247935a851480d42239a4a3cd 100644
--- a/fs/xfs/xfs_ioctl.h
+++ b/fs/xfs/xfs_ioctl.h
@@ -38,8 +38,9 @@ xfs_readlink_by_handle(
 int xfs_ioc_attrmulti_one(struct file *parfilp, struct inode *inode,
 		uint32_t opcode, void __user *uname, void __user *value,
 		uint32_t *len, uint32_t flags);
-int xfs_ioc_attr_list(struct xfs_inode *dp, void __user *ubuf, int bufsize,
-	int flags, struct xfs_attrlist_cursor __user *ucursor);
+int xfs_ioc_attr_list(struct xfs_inode *dp, void __user *ubuf,
+		      size_t bufsize, int flags,
+		      struct xfs_attrlist_cursor __user *ucursor);
 
 extern struct dentry *
 xfs_handle_to_dentry(