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Message-ID: <202010082237.zpvcVDj7-lkp@intel.com>
Date: Thu, 8 Oct 2020 22:33:06 +0800
From: kernel test robot <lkp@...el.com>
To: Xin Long <lucien.xin@...il.com>,
network dev <netdev@...r.kernel.org>,
linux-sctp@...r.kernel.org
Cc: kbuild-all@...ts.01.org,
Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
Neil Horman <nhorman@...driver.com>,
Michael Tuexen <tuexen@...muenster.de>, davem@...emloft.net
Subject: Re: [PATCHv2 net-next 15/17] sctp: add the error cause for new
encapsulation port restart
Hi Xin,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Xin-Long/sctp-Implement-RFC6951-UDP-Encapsulation-of-SCTP/20201008-175211
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 9faebeb2d80065926dfbc09cb73b1bb7779a89cd
config: i386-randconfig-s002-20201008 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-218-gc0e96d6d-dirty
# https://github.com/0day-ci/linux/commit/9119d2be86deb6950b26b152a51ddad0a95182a5
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Xin-Long/sctp-Implement-RFC6951-UDP-Encapsulation-of-SCTP/20201008-175211
git checkout 9119d2be86deb6950b26b152a51ddad0a95182a5
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
echo
echo "sparse warnings: (new ones prefixed by >>)"
echo
net/sctp/sm_make_chunk.c: note: in included file (through include/net/sctp/sctp.h):
include/net/sctp/structs.h:334:41: sparse: sparse: array of flexible structures
>> net/sctp/sm_make_chunk.c:1157:24: sparse: sparse: cast from restricted __be16
>> net/sctp/sm_make_chunk.c:1157:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned short [usertype] val @@ got restricted __be16 [usertype] encap_port @@
>> net/sctp/sm_make_chunk.c:1157:24: sparse: expected unsigned short [usertype] val
>> net/sctp/sm_make_chunk.c:1157:24: sparse: got restricted __be16 [usertype] encap_port
>> net/sctp/sm_make_chunk.c:1157:24: sparse: sparse: cast from restricted __be16
>> net/sctp/sm_make_chunk.c:1157:24: sparse: sparse: cast from restricted __be16
net/sctp/sm_make_chunk.c:1158:24: sparse: sparse: cast from restricted __be16
net/sctp/sm_make_chunk.c:1158:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned short [usertype] val @@ got restricted __be16 [usertype] encap_port @@
net/sctp/sm_make_chunk.c:1158:24: sparse: expected unsigned short [usertype] val
net/sctp/sm_make_chunk.c:1158:24: sparse: got restricted __be16 [usertype] encap_port
net/sctp/sm_make_chunk.c:1158:24: sparse: sparse: cast from restricted __be16
net/sctp/sm_make_chunk.c:1158:24: sparse: sparse: cast from restricted __be16
net/sctp/sm_make_chunk.c:3081:48: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int optname @@ got restricted __be16 @@
net/sctp/sm_make_chunk.c:3081:48: sparse: expected int optname
net/sctp/sm_make_chunk.c:3081:48: sparse: got restricted __be16
net/sctp/sm_make_chunk.c:3153:48: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected int optname @@ got restricted __be16 @@
net/sctp/sm_make_chunk.c:3153:48: sparse: expected int optname
net/sctp/sm_make_chunk.c:3153:48: sparse: got restricted __be16
vim +1157 net/sctp/sm_make_chunk.c
1144
1145 struct sctp_chunk *sctp_make_new_encap_port(const struct sctp_association *asoc,
1146 const struct sctp_chunk *chunk)
1147 {
1148 struct sctp_new_encap_port_hdr nep;
1149 struct sctp_chunk *retval;
1150
1151 retval = sctp_make_abort(asoc, chunk,
1152 sizeof(struct sctp_errhdr) + sizeof(nep));
1153 if (!retval)
1154 goto nodata;
1155
1156 sctp_init_cause(retval, SCTP_ERROR_NEW_ENCAP_PORT, sizeof(nep));
> 1157 nep.cur_port = htons(SCTP_INPUT_CB(chunk->skb)->encap_port);
1158 nep.new_port = htons(chunk->transport->encap_port);
1159 sctp_addto_chunk(retval, sizeof(nep), &nep);
1160
1161 nodata:
1162 return retval;
1163 }
1164
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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