From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755944AbZG1XK7 (ORCPT ); Tue, 28 Jul 2009 19:10:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754779AbZG1XK6 (ORCPT ); Tue, 28 Jul 2009 19:10:58 -0400 Received: from kroah.org ([198.145.64.141]:42903 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752947AbZG1XDo (ORCPT ); Tue, 28 Jul 2009 19:03:44 -0400 X-Mailbox-Line: From gregkh@mini.kroah.org Tue Jul 28 15:59:41 2009 Message-Id: <20090728225941.294377254@mini.kroah.org> User-Agent: quilt/0.48-1 Date: Tue, 28 Jul 2009 15:58:30 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Tilman Schmidt , "David S. Miller" Subject: [patch 02/37] gigaset: accept connection establishment messages in any order References: <20090728225828.431071451@mini.kroah.org> Content-Disposition: inline; filename=gigaset-accept-connection-establishment-messages-in-any-order.patch In-Reply-To: <20090728230145.GA10486@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Tilman Schmidt commit bceb0f126f25184eaec3f3c8f00c92b0d899e5de upstream. ISDN connection setup failed if the "connection active" and "B channel up" messages from the device arrived in a different order than expected. Modify the state machine to accept them in any order. Impact: bugfix Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/isdn/gigaset/ev-layer.c | 44 ++++++++++++++++++---------------------- 1 file changed, 20 insertions(+), 24 deletions(-) --- a/drivers/isdn/gigaset/ev-layer.c +++ b/drivers/isdn/gigaset/ev-layer.c @@ -307,32 +307,33 @@ struct reply_t gigaset_tab_cid_m10x[] = {RSP_OK, 604,604, -1, 605, 5, {ACT_CMD+AT_MSN}}, {RSP_OK, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}}, {RSP_NULL, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}}, - {RSP_OK, 606,606, -1, 607, 5, {0}, "+VLS=17\r"}, /* set "Endgeraetemodus" */ + {RSP_OK, 606,606, -1, 607, 5, {0}, "+VLS=17\r"}, {RSP_OK, 607,607, -1, 608,-1}, - //{RSP_ZSAU, 608,608,ZSAU_PROCEEDING, 608, 0, {ACT_ERROR}},//DELETE {RSP_ZSAU, 608,608,ZSAU_PROCEEDING, 609, 5, {ACT_CMD+AT_DIAL}}, {RSP_OK, 609,609, -1, 650, 0, {ACT_DIALING}}, - {RSP_ZVLS, 608,608, 17, -1,-1, {ACT_DEBUG}}, - {RSP_ZCTP, 609,609, -1, -1,-1, {ACT_DEBUG}}, - {RSP_ZCPN, 609,609, -1, -1,-1, {ACT_DEBUG}}, {RSP_ERROR, 601,609, -1, 0, 0, {ACT_ABORTDIAL}}, {EV_TIMEOUT, 601,609, -1, 0, 0, {ACT_ABORTDIAL}}, - /* dialing */ - {RSP_ZCTP, 650,650, -1, -1,-1, {ACT_DEBUG}}, - {RSP_ZCPN, 650,650, -1, -1,-1, {ACT_DEBUG}}, - {RSP_ZSAU, 650,650,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}}, /* some devices don't send this */ - - /* connection established */ - {RSP_ZSAU, 650,650,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}}, //FIXME -> DLE1 - {RSP_ZSAU, 750,750,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}}, //FIXME -> DLE1 - - {EV_BC_OPEN, 800,800, -1, 800,-1, {ACT_NOTIFY_BC_UP}}, //FIXME new constate + timeout + /* optional dialing responses */ + {EV_BC_OPEN, 650,650, -1, 651,-1}, + {RSP_ZVLS, 608,651, 17, -1,-1, {ACT_DEBUG}}, + {RSP_ZCTP, 609,651, -1, -1,-1, {ACT_DEBUG}}, + {RSP_ZCPN, 609,651, -1, -1,-1, {ACT_DEBUG}}, + {RSP_ZSAU, 650,651,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}}, + + /* connect */ + {RSP_ZSAU, 650,650,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}}, + {RSP_ZSAU, 651,651,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT, + ACT_NOTIFY_BC_UP}}, + {RSP_ZSAU, 750,750,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}}, + {RSP_ZSAU, 751,751,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT, + ACT_NOTIFY_BC_UP}}, + {EV_BC_OPEN, 800,800, -1, 800,-1, {ACT_NOTIFY_BC_UP}}, /* remote hangup */ - {RSP_ZSAU, 650,650,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT}}, - {RSP_ZSAU, 750,750,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}}, + {RSP_ZSAU, 650,651,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT}}, + {RSP_ZSAU, 750,751,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}}, {RSP_ZSAU, 800,800,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}}, /* hangup */ @@ -371,7 +372,8 @@ struct reply_t gigaset_tab_cid_m10x[] = {RSP_ZSAU, 700,729,ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT}}, {RSP_ZSAU, 700,729,ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT}}, - {EV_TIMEOUT, 750,750, -1, 0, 0, {ACT_CONNTIMEOUT}}, + {EV_BC_OPEN, 750,750, -1, 751,-1}, + {EV_TIMEOUT, 750,751, -1, 0, 0, {ACT_CONNTIMEOUT}}, /* B channel closed (general case) */ {EV_BC_CLOSED, -1, -1, -1, -1,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME @@ -914,12 +916,6 @@ static void bchannel_down(struct bc_stat static void bchannel_up(struct bc_state *bcs) { - if (!(bcs->chstate & CHS_D_UP)) { - dev_notice(bcs->cs->dev, "%s: D channel not up\n", __func__); - bcs->chstate |= CHS_D_UP; - gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN); - } - if (bcs->chstate & CHS_B_UP) { dev_notice(bcs->cs->dev, "%s: B channel already up\n", __func__);