Date: Mon, 30 Nov 2020 09:07:22 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r368170 - stable/12/sys/netinet Message-ID: <202011300907.0AU97M3O083788@repo.freebsd.org>
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Author: tuexen Date: Mon Nov 30 09:07:21 2020 New Revision: 368170 URL: https://svnweb.freebsd.org/changeset/base/368170 Log: MFC r366425: Cleanup, no functional change intended. Modified: stable/12/sys/netinet/sctp_indata.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/netinet/sctp_indata.c ============================================================================== --- stable/12/sys/netinet/sctp_indata.c Mon Nov 30 08:31:41 2020 (r368169) +++ stable/12/sys/netinet/sctp_indata.c Mon Nov 30 09:07:21 2020 (r368170) @@ -289,17 +289,15 @@ sctp_build_ctl_nchunk(struct sctp_inpcb *inp, struct s static void sctp_mark_non_revokable(struct sctp_association *asoc, uint32_t tsn) { - uint32_t gap, i, cumackp1; - int fnd = 0; - int in_r = 0, in_nr = 0; + uint32_t gap, i; + int in_r, in_nr; if (SCTP_BASE_SYSCTL(sctp_do_drain) == 0) { return; } - cumackp1 = asoc->cumulative_tsn + 1; - if (SCTP_TSN_GT(cumackp1, tsn)) { + if (SCTP_TSN_GE(asoc->cumulative_tsn, tsn)) { /* - * this tsn is behind the cum ack and thus we don't need to + * This tsn is behind the cum ack and thus we don't need to * worry about it being moved from one to the other. */ return; @@ -307,33 +305,27 @@ sctp_mark_non_revokable(struct sctp_association *asoc, SCTP_CALC_TSN_TO_GAP(gap, tsn, asoc->mapping_array_base_tsn); in_r = SCTP_IS_TSN_PRESENT(asoc->mapping_array, gap); in_nr = SCTP_IS_TSN_PRESENT(asoc->nr_mapping_array, gap); - if ((in_r == 0) && (in_nr == 0)) { -#ifdef INVARIANTS - panic("Things are really messed up now"); -#else - SCTP_PRINTF("gap:%x tsn:%x\n", gap, tsn); - sctp_print_mapping_array(asoc); -#endif - } - if (in_nr == 0) + KASSERT(in_r || in_nr, ("%s: Things are really messed up now", __FUNCTION__)); + if (!in_nr) { SCTP_SET_TSN_PRESENT(asoc->nr_mapping_array, gap); - if (in_r) - SCTP_UNSET_TSN_PRESENT(asoc->mapping_array, gap); - if (SCTP_TSN_GT(tsn, asoc->highest_tsn_inside_nr_map)) { - asoc->highest_tsn_inside_nr_map = tsn; + if (SCTP_TSN_GT(tsn, asoc->highest_tsn_inside_nr_map)) { + asoc->highest_tsn_inside_nr_map = tsn; + } } - if (tsn == asoc->highest_tsn_inside_map) { - /* We must back down to see what the new highest is */ - for (i = tsn - 1; SCTP_TSN_GE(i, asoc->mapping_array_base_tsn); i--) { - SCTP_CALC_TSN_TO_GAP(gap, i, asoc->mapping_array_base_tsn); - if (SCTP_IS_TSN_PRESENT(asoc->mapping_array, gap)) { - asoc->highest_tsn_inside_map = i; - fnd = 1; - break; + if (in_r) { + SCTP_UNSET_TSN_PRESENT(asoc->mapping_array, gap); + if (tsn == asoc->highest_tsn_inside_map) { + /* We must back down to see what the new highest is. */ + for (i = tsn - 1; SCTP_TSN_GE(i, asoc->mapping_array_base_tsn); i--) { + SCTP_CALC_TSN_TO_GAP(gap, i, asoc->mapping_array_base_tsn); + if (SCTP_IS_TSN_PRESENT(asoc->mapping_array, gap)) { + asoc->highest_tsn_inside_map = i; + break; + } } - } - if (!fnd) { - asoc->highest_tsn_inside_map = asoc->mapping_array_base_tsn - 1; + if (!SCTP_TSN_GE(i, asoc->mapping_array_base_tsn)) { + asoc->highest_tsn_inside_map = asoc->mapping_array_base_tsn - 1; + } } } }
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