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| author |   Shan Wei <shanwei@cn.fujitsu.com> | 2011-04-19 21:27:07 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-04-20 01:51:02 -0700 |
| commit | 48669698c23339e0fa31753f04e77648fc210339 (patch) | |
| tree | d8480e12cc6aa6a1d0671f025b151eb14d32cb30 /include/net/sctp | |
| parent | sctp: check invalid value of length parameter in error cause (diff) | |
| download | linux-dev-48669698c23339e0fa31753f04e77648fc210339.tar.xz linux-dev-48669698c23339e0fa31753f04e77648fc210339.zip | |
sctp: remove redundant check when walking through a list of TLV parameters
When pos.v <= (void *)chunk + end - ntohs(pos.p->length) and
ntohs(pos.p->length) >= sizeof(sctp_paramhdr_t) these two expressions are all true,
pos.v <= (void *)chunk + end - sizeof(sctp_paramhdr_t) *must* be true.
This patch removes this kind of redundant check.
It's same to _sctp_walk_errors macro.
Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
| -rw-r--r-- | include/net/sctp/sctp.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 505845ddb0be..7e8e34c29270 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -531,7 +531,6 @@ _sctp_walk_params((pos), (chunk), ntohs((chunk)->chunk_hdr.length), member) #define _sctp_walk_params(pos, chunk, end, member)\ for (pos.v = chunk->member;\ - pos.v <= (void *)chunk + end - sizeof(sctp_paramhdr_t) &&\ pos.v <= (void *)chunk + end - ntohs(pos.p->length) &&\ ntohs(pos.p->length) >= sizeof(sctp_paramhdr_t);\ pos.v += WORD_ROUND(ntohs(pos.p->length))) @@ -542,7 +541,6 @@ _sctp_walk_errors((err), (chunk_hdr), ntohs((chunk_hdr)->length)) #define _sctp_walk_errors(err, chunk_hdr, end)\ for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \ sizeof(sctp_chunkhdr_t));\ - (void *)err <= (void *)chunk_hdr + end - sizeof(sctp_errhdr_t) &&\ (void *)err <= (void *)chunk_hdr + end - ntohs(err->length) &&\ ntohs(err->length) >= sizeof(sctp_errhdr_t); \ err = (sctp_errhdr_t *)((void *)err + WORD_ROUND(ntohs(err->length)))) |