tipc: remove user_port instance from tipc_port structure

After the native API has been completely removed, the 'user_port'
field in struct tipc_port becomes unused, and can be removed.
As a consequence, the "usrmem" argument in tipc_msg_build() is no
longer needed, and so we remove that one too.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 11 deletions

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 0a4c3a1bb9cc..d34429d03c16 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1081,7 +1081,7 @@ again:
          * (Must not hold any locks while building message.)
          */
         res = tipc_msg_build(hdr, msg_sect, num_sect, total_len,
-                             sender->max_pkt, !sender->user_port, &buf);
+                             sender->max_pkt, &buf);
 
         read_lock_bh(&tipc_net_lock);
         node = tipc_node_find(destaddr);
@@ -1216,18 +1216,14 @@ again:
                 else
                         sz = fragm_rest;
 
-                if (likely(!sender->user_port)) {
-                        if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
+                if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
 error:
-                                for (; buf_chain; buf_chain = buf) {
-                                        buf = buf_chain->next;
-                                        kfree_skb(buf_chain);
-                                }
-                                return -EFAULT;
+                        for (; buf_chain; buf_chain = buf) {
+                                buf = buf_chain->next;
+                                kfree_skb(buf_chain);
                         }
-                } else
-                        skb_copy_to_linear_data_offset(buf, fragm_crs,
-                                                       sect_crs, sz);
+                        return -EFAULT;
+                }
                 sect_crs += sz;
                 sect_rest -= sz;
                 fragm_crs += sz;