tms380tr: Fix cascading if/else tab abuse
authorJoe Perches <joe@perches.com>
Sat, 4 Feb 2012 10:52:56 +0000 (10:52 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 4 Feb 2012 21:26:59 +0000 (16:26 -0500)
Cascading "if/else if"'s are ugly.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/tokenring/tms380tr.c

index 65e9cf3..102f896 100644 (file)
@@ -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;
                }
        }