sctp: make use of SCTP_TRUNC4 macro

And avoid the usage of '&~3'. This is the last place still not using
the macro.
Also break the line to make it easier to read.

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 76eae82..8afe2e9 100644 (file)
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -195,9 +195,10 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
        /* This is the biggest possible DATA chunk that can fit into
         * the packet
         */
-       max_data = (asoc->pathmtu -
-               sctp_sk(asoc->base.sk)->pf->af->net_header_len -
-               sizeof(struct sctphdr) - sizeof(struct sctp_data_chunk)) & ~3;
+       max_data = asoc->pathmtu -
+                  sctp_sk(asoc->base.sk)->pf->af->net_header_len -
+                  sizeof(struct sctphdr) - sizeof(struct sctp_data_chunk);
+       max_data = SCTP_TRUNC4(max_data);
 
        max = asoc->frag_point;
        /* If the the peer requested that we authenticate DATA chunks