From 76a82abc0598f9cd881154369c3afdff9c28568b Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sat, 4 Feb 2012 10:52:56 +0000 Subject: tms380tr: Fix cascading if/else tab abuse Cascading "if/else if"'s are ugly. Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- drivers/net/tokenring/tms380tr.c | 179 +++++++++++++++------------------------ 1 file changed, 67 insertions(+), 112 deletions(-) diff --git a/drivers/net/tokenring/tms380tr.c b/drivers/net/tokenring/tms380tr.c index 65e9cf3a71fe..102f896bbc58 100644 --- a/drivers/net/tokenring/tms380tr.c +++ b/drivers/net/tokenring/tms380tr.c @@ -1525,10 +1525,8 @@ static void tms380tr_chk_outstanding_cmds(struct net_device *dev) /* Check if adapter is opened, avoiding COMMAND_REJECT * interrupt by the adapter! */ - if(tp->AdapterOpenFlag == 0) - { - if(tp->CMDqueue & OC_OPEN) - { + if (tp->AdapterOpenFlag == 0) { + if (tp->CMDqueue & OC_OPEN) { /* Execute OPEN command */ tp->CMDqueue ^= OC_OPEN; @@ -1536,21 +1534,17 @@ static void tms380tr_chk_outstanding_cmds(struct net_device *dev) tp->scb.Parm[0] = LOWORD(Addr); tp->scb.Parm[1] = HIWORD(Addr); tp->scb.CMD = OPEN; - } - else + } else /* No OPEN command queued, but adapter closed. Note: * We'll try to re-open the adapter in DriverPoll() */ return; /* No adapter command issued */ - } - else - { + } else { /* Adapter is open; evaluate command queue: try to execute * outstanding commands (depending on priority!) CLOSE * command queued */ - if(tp->CMDqueue & OC_CLOSE) - { + if (tp->CMDqueue & OC_CLOSE) { tp->CMDqueue ^= OC_CLOSE; tp->AdapterOpenFlag = 0; tp->scb.Parm[0] = 0; /* Parm[0], Parm[1] are ignored */ @@ -1560,109 +1554,70 @@ static void tms380tr_chk_outstanding_cmds(struct net_device *dev) tp->CMDqueue |= OC_OPEN; /* re-open adapter */ else tp->CMDqueue = 0; /* no more commands */ - } - else - { - if(tp->CMDqueue & OC_RECEIVE) - { - tp->CMDqueue ^= OC_RECEIVE; - Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = RECEIVE; - } - else - { - if(tp->CMDqueue & OC_TRANSMIT_HALT) - { - /* NOTE: TRANSMIT.HALT must be checked - * before TRANSMIT. - */ - tp->CMDqueue ^= OC_TRANSMIT_HALT; - tp->scb.CMD = TRANSMIT_HALT; - - /* Parm[0] and Parm[1] are ignored - * but should be set to zero! - */ - tp->scb.Parm[0] = 0; - tp->scb.Parm[1] = 0; - } - else - { - if(tp->CMDqueue & OC_TRANSMIT) - { - /* NOTE: TRANSMIT must be - * checked after TRANSMIT.HALT - */ - if(tp->TransmitCommandActive) - { - if(!tp->TransmitHaltScheduled) - { - tp->TransmitHaltScheduled = 1; - tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT) ; - } - tp->TransmitCommandActive = 0; - return; - } - - tp->CMDqueue ^= OC_TRANSMIT; - tms380tr_cancel_tx_queue(tp); - Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = TRANSMIT; - tp->TransmitCommandActive = 1; - } - else - { - if(tp->CMDqueue & OC_MODIFY_OPEN_PARMS) - { - tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS; - tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/ - tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION; - tp->scb.Parm[1] = 0; /* is ignored but should be zero */ - tp->scb.CMD = MODIFY_OPEN_PARMS; - } - else - { - if(tp->CMDqueue & OC_SET_FUNCT_ADDR) - { - tp->CMDqueue ^= OC_SET_FUNCT_ADDR; - tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr); - tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr); - tp->scb.CMD = SET_FUNCT_ADDR; - } - else - { - if(tp->CMDqueue & OC_SET_GROUP_ADDR) - { - tp->CMDqueue ^= OC_SET_GROUP_ADDR; - tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr); - tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr); - tp->scb.CMD = SET_GROUP_ADDR; - } - else - { - if(tp->CMDqueue & OC_READ_ERROR_LOG) - { - tp->CMDqueue ^= OC_READ_ERROR_LOG; - Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = READ_ERROR_LOG; - } - else - { - printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n"); - tp->CMDqueue = 0; - return; - } - } - } - } - } + } else if (tp->CMDqueue & OC_RECEIVE) { + tp->CMDqueue ^= OC_RECEIVE; + Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer); + tp->scb.Parm[0] = LOWORD(Addr); + tp->scb.Parm[1] = HIWORD(Addr); + tp->scb.CMD = RECEIVE; + } else if (tp->CMDqueue & OC_TRANSMIT_HALT) { + /* NOTE: TRANSMIT.HALT must be checked + * before TRANSMIT. + */ + tp->CMDqueue ^= OC_TRANSMIT_HALT; + tp->scb.CMD = TRANSMIT_HALT; + + /* Parm[0] and Parm[1] are ignored + * but should be set to zero! + */ + tp->scb.Parm[0] = 0; + tp->scb.Parm[1] = 0; + } else if (tp->CMDqueue & OC_TRANSMIT) { + /* NOTE: TRANSMIT must be + * checked after TRANSMIT.HALT + */ + if (tp->TransmitCommandActive) { + if (!tp->TransmitHaltScheduled) { + tp->TransmitHaltScheduled = 1; + tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT); } + tp->TransmitCommandActive = 0; + return; } + + tp->CMDqueue ^= OC_TRANSMIT; + tms380tr_cancel_tx_queue(tp); + Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer); + tp->scb.Parm[0] = LOWORD(Addr); + tp->scb.Parm[1] = HIWORD(Addr); + tp->scb.CMD = TRANSMIT; + tp->TransmitCommandActive = 1; + } else if (tp->CMDqueue & OC_MODIFY_OPEN_PARMS) { + tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS; + tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/ + tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION; + tp->scb.Parm[1] = 0; /* is ignored but should be zero */ + tp->scb.CMD = MODIFY_OPEN_PARMS; + } else if (tp->CMDqueue & OC_SET_FUNCT_ADDR) { + tp->CMDqueue ^= OC_SET_FUNCT_ADDR; + tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr); + tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr); + tp->scb.CMD = SET_FUNCT_ADDR; + } else if (tp->CMDqueue & OC_SET_GROUP_ADDR) { + tp->CMDqueue ^= OC_SET_GROUP_ADDR; + tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr); + tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr); + tp->scb.CMD = SET_GROUP_ADDR; + } else if (tp->CMDqueue & OC_READ_ERROR_LOG) { + tp->CMDqueue ^= OC_READ_ERROR_LOG; + Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer); + tp->scb.Parm[0] = LOWORD(Addr); + tp->scb.Parm[1] = HIWORD(Addr); + tp->scb.CMD = READ_ERROR_LOG; + } else { + printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n"); + tp->CMDqueue = 0; + return; } } -- cgit v1.2.3