* [PATCH v2] sctp: keep fragmentation point aligned to word size
@ 2016-03-19 15:17 Marcelo Ricardo Leitner
0 siblings, 0 replies; only message in thread
From: Marcelo Ricardo Leitner @ 2016-03-19 15:17 UTC (permalink / raw)
To: netdev; +Cc: Eric Dumazet, Neil Horman, Vlad Yasevich, linux-sctp
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
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