Hi Xin, [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Xin-Long/sctp-implement-rfc6525-sctp-stream-reconf/20170101-192844 config: x86_64-randconfig-x015-201701 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): net/sctp/stream.c: In function 'sctp_process_strreset_outreq': >> net/sctp/stream.c:140:9: warning: 'str_p' may be used uninitialized in this function [-Wmaybe-uninitialized] *evp = sctp_ulpevent_make_stream_reset_event(asoc, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ flags | SCTP_STREAM_RESET_OUTGOING_SSN, nums, str_p, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GFP_ATOMIC); ~~~~~~~~~~~ vim +/str_p +140 net/sctp/stream.c 124 if (str_p[i] >= asoc->streamincnt) { 125 result = SCTP_STRRESET_ERR_WRONG_SSN; 126 goto out; 127 } 128 } 129 130 str_p = outreq->list_of_streams; 131 for (i = 0; i < nums; i++, str_p++) 132 asoc->streamin[*str_p].ssn = 0; 133 } else { 134 for (i = 0; i < asoc->streamincnt; i++) 135 asoc->streamin[i].ssn = 0; 136 } 137 138 result = SCTP_STRRESET_PERFORMED; 139 > 140 *evp = sctp_ulpevent_make_stream_reset_event(asoc, 141 flags | SCTP_STREAM_RESET_OUTGOING_SSN, nums, str_p, 142 GFP_ATOMIC); 143 144 out: 145 return sctp_make_strreset_resp(asoc, result, request_seq); 146 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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