--- zzzz-none-000/linux-3.10.107/fs/nfs/callback.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/fs/nfs/callback.h	2021-02-04 17:41:59.000000000 +0000
@@ -32,6 +32,8 @@
 	OP_CB_WANTS_CANCELLED = 12,
 	OP_CB_NOTIFY_LOCK   = 13,
 	OP_CB_NOTIFY_DEVICEID = 14,
+/* Callback operations new to NFSv4.2 */
+	OP_CB_OFFLOAD = 15,
 	OP_CB_ILLEGAL = 10044,
 };
 
@@ -39,6 +41,7 @@
 	__be32			drc_status;
 	struct nfs_client	*clp;
 	u32			slotid;
+	u32			minorversion;
 	struct net		*net;
 };
 
@@ -58,7 +61,6 @@
 };
 
 struct cb_getattrargs {
-	struct sockaddr *addr;
 	struct nfs_fh fh;
 	uint32_t bitmap[2];
 };
@@ -73,7 +75,6 @@
 };
 
 struct cb_recallargs {
-	struct sockaddr *addr;
 	struct nfs_fh fh;
 	nfs4_stateid stateid;
 	uint32_t truncate;
@@ -116,9 +117,6 @@
 				       struct cb_sequenceres *res,
 				       struct cb_process_state *cps);
 
-extern int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation,
-					     const nfs4_stateid *stateid);
-
 #define RCA4_TYPE_MASK_RDATA_DLG	0
 #define RCA4_TYPE_MASK_WDATA_DLG	1
 #define RCA4_TYPE_MASK_DIR_DLG         2
@@ -131,7 +129,6 @@
 #define RCA4_TYPE_MASK_ALL 0xf31f
 
 struct cb_recallanyargs {
-	struct sockaddr	*craa_addr;
 	uint32_t	craa_objs_to_keep;
 	uint32_t	craa_type_mask;
 };
@@ -141,7 +138,6 @@
 					struct cb_process_state *cps);
 
 struct cb_recallslotargs {
-	struct sockaddr	*crsa_addr;
 	uint32_t	crsa_target_highest_slotid;
 };
 extern __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args,
@@ -149,7 +145,6 @@
 					 struct cb_process_state *cps);
 
 struct cb_layoutrecallargs {
-	struct sockaddr		*cbl_addr;
 	uint32_t		cbl_recall_type;
 	uint32_t		cbl_layout_type;
 	uint32_t		cbl_layoutchanged;
@@ -193,9 +188,6 @@
 #if IS_ENABLED(CONFIG_NFS_V4)
 extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
 extern void nfs_callback_down(int minorversion, struct net *net);
-extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation,
-					    const nfs4_stateid *stateid);
-extern int nfs4_set_callback_sessionid(struct nfs_client *clp);
 #endif /* CONFIG_NFS_V4 */
 /*
  * nfs41: Callbacks are expected to not cause substantial latency,
@@ -206,6 +198,5 @@
 #define NFS41_BC_MAX_CALLBACKS 1
 
 extern unsigned int nfs_callback_set_tcpport;
-extern unsigned short nfs_callback_tcpport;
 
 #endif /* __LINUX_FS_NFS_CALLBACK_H */