[PATCH v2] sctp: keep fragmentation point aligned to word size
From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Date: 2016-03-19 15:17:50
Subsystem:
networking [general], sctp protocol, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Marcelo Ricardo Leitner, Xin Long, Linus Torvalds
If the user supply a different fragmentation point or if there is a network header that cause it to not be aligned, force it to be aligned. Fragmentation point at a value that is not aligned is not optimal. It causes extra padding to be used and has just no pros. v2: - Make use of the new WORD_TRUNC macro Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> --- include/net/sctp/sctp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index ad2136caa7d65fdc0f51e4c7ad3a526c2f39660d..65521cfdcadeee35d61f280165a387cc2164ab6d 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h@@ -431,7 +431,7 @@ static inline int sctp_frag_point(const struct sctp_association *asoc, int pmtu) if (asoc->user_frag) frag = min_t(int, frag, asoc->user_frag); - frag = min_t(int, frag, SCTP_MAX_CHUNK_LEN); + frag = WORD_TRUNC(min_t(int, frag, SCTP_MAX_CHUNK_LEN)); return frag; }
--
2.5.0