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authorJon Paul Maloy <jon.maloy@ericsson.com>2014-02-14 02:29:05 +0400
committerDavid S. Miller <davem@davemloft.net>2014-02-14 02:57:05 +0400
commit03b92017933bd22a3dca6830048877dd3162f872 (patch)
treeb4632236d0c8dd6a325bc0787486fba3ab6bcb52 /net/tipc/bcast.c
parentb3f0f5c357e60b7a366d2c8d739b47452451868b (diff)
downloadlinux-03b92017933bd22a3dca6830048877dd3162f872.tar.xz
tipc: stricter behavior of message reassembly function
The function tipc_link_recv_fragment(struct sk_buff **buf) currently leaves the value of the input buffer pointer undefined when it returns, except when the return code indicates that the reassembly is complete. This despite the fact that it always consumes the input buffer. Here, we enforce a stricter behavior by this function, ensuring that the returned buffer pointer is non-NULL if and only if the reassembly is complete. This makes it possible to test for the buffer pointer as criteria for successful reassembly. We also rename the function to tipc_link_frag_rcv(), which is both shorter and more in line with common naming practice in the network subsystem. Apart from the new name, these changes have no impact on current users of the function, but makes it more practical for use in some planned future commits. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Reviewed-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/bcast.c')
-rw-r--r--net/tipc/bcast.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index bf860d9e75af..af35f76c6b29 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -481,9 +481,9 @@ receive:
tipc_link_recv_bundle(buf);
} else if (msg_user(msg) == MSG_FRAGMENTER) {
int ret;
- ret = tipc_link_recv_fragment(&node->bclink.reasm_head,
- &node->bclink.reasm_tail,
- &buf);
+ ret = tipc_link_frag_rcv(&node->bclink.reasm_head,
+ &node->bclink.reasm_tail,
+ &buf);
if (ret == LINK_REASM_ERROR)
goto unlock;
spin_lock_bh(&bc_lock);