*** 19,29 ****
   * CDDL HEADER END
   */
  
  /*
   * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
-  * Copyright 2015 Joyent, Inc.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  /*        All Rights Reserved   */
  
--- 19,28 ----
*** 101,111 ****
  
  #include <sys/socket_proto.h>
  
  typedef struct sonodeops sonodeops_t;
  typedef struct sonode sonode_t;
- typedef boolean_t (*so_krecv_f)(sonode_t *, mblk_t *, size_t, int, void *);
  
  struct sodirect_s;
  
  /*
   * The sonode represents a socket. A sonode never exist in the file system
--- 100,109 ----
*** 244,257 ****
          uint_t                  so_filter_active;       /* # of active fil */
          uint_t                  so_filter_tx;           /* pending tx ops */
          struct sof_instance     *so_filter_top;         /* top of stack */
          struct sof_instance     *so_filter_bottom;      /* bottom of stack */
          clock_t                 so_filter_defertime;    /* time when deferred */
- 
-         /* Kernel direct receive callbacks */
-         so_krecv_f              so_krecv_cb;            /* recv callback */
-         void                    *so_krecv_arg;          /* recv cb arg */
  };
  
  #define SO_HAVE_DATA(so)                                                \
          /*                                                              \
           * For the (tid == 0) case we must check so_rcv_{q_,}head       \
--- 242,251 ----
*** 971,989 ****
                              int *);
  
  extern int      so_copyin(const void *, void *, size_t, int);
  extern int      so_copyout(const void *, void *, size_t, int);
  
- /*
-  * Functions to manipulate the use of direct receive callbacks. This should not
-  * be used outside of sockfs and ksocket. These are generally considered a use
-  * once interface for a socket and will cause all outstanding data on the socket
-  * to be flushed.
-  */
- extern int      so_krecv_set(sonode_t *, so_krecv_f, void *);
- extern void     so_krecv_unblock(sonode_t *);
- 
  #endif
  
  /*
   * Internal structure for obtaining sonode information from the socklist.
   * These types match those corresponding in the sonode structure.
--- 965,974 ----