Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...
[linux-2.6.git] / drivers / char / rio / rioctrl.c
index 75b2557..052e812 100644 (file)
@@ -80,7 +80,7 @@ static char *_rioctrl_c_sccs_ = "@(#)rioctrl.c        1.3";
 static struct LpbReq LpbReq;
 static struct RupReq RupReq;
 static struct PortReq PortReq;
-static struct HostReq HostReq;
+static struct HostReq HostReq; /* oh really?  global?  and no locking? */
 static struct HostDpRam HostDpRam;
 static struct DebugCtrl DebugCtrl;
 static struct Map MapEnt;
@@ -126,12 +126,19 @@ static int
 
 #define drv_makedev(maj, min) ((((uint) maj & 0xff) << 8) | ((uint) min & 0xff))
 
-int riocontrol(p, dev, cmd, arg, su)
-struct rio_info *p;
-dev_t dev;
-int cmd;
-caddr_t arg;
-int su;
+static int copy_from_io(void __user *to, void __iomem *from, size_t size)
+{
+       void *buf = kmalloc(size, GFP_KERNEL);
+       int res = -ENOMEM;
+       if (buf) {
+               rio_memcpy_fromio(buf, from, size);
+               res = copy_to_user(to, buf, size);
+               kfree(buf);
+       }
+       return res;
+}
+
+int riocontrol(struct rio_info *p, dev_t dev, int cmd, unsigned long arg, int su)
 {
        uint Host;              /* leave me unsigned! */
        uint port;              /* and me! */
@@ -139,9 +146,10 @@ int su;
        ushort loop;
        int Entry;
        struct Port *PortP;
-       struct PKT *PacketP;
+       struct PKT __iomem *PacketP;
        int retval = 0;
        unsigned long flags;
+       void __user *argp = (void __user *)arg;
 
        func_enter();
 
@@ -149,7 +157,7 @@ int su;
        Host = 0;
        PortP = NULL;
 
-       rio_dprintk(RIO_DEBUG_CTRL, "control ioctl cmd: 0x%x arg: %p\n", cmd, arg);
+       rio_dprintk(RIO_DEBUG_CTRL, "control ioctl cmd: 0x%x arg: %p\n", cmd, argp);
 
        switch (cmd) {
                /*
@@ -160,11 +168,11 @@ int su;
                 ** otherwise just the specified host card will be changed.
                 */
        case RIO_SET_TIMER:
-               rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_TIMER to %ldms\n", (unsigned long)arg);
+               rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_TIMER to %ldms\n", arg);
                {
                        int host, value;
-                       host = ((unsigned long) arg >> 16) & 0x0000FFFF;
-                       value = (unsigned long) arg & 0x0000ffff;
+                       host = (arg >> 16) & 0x0000FFFF;
+                       value = arg & 0x0000ffff;
                        if (host == -1) {
                                for (host = 0; host < p->RIONumHosts; host++) {
                                        if (p->RIOHosts[host].Flags == RC_RUNNING) {
@@ -183,26 +191,26 @@ int su;
 
        case RIO_FOAD_RTA:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_FOAD_RTA\n");
-               return RIOCommandRta(p, (unsigned long)arg, RIOFoadRta);
+               return RIOCommandRta(p, arg, RIOFoadRta);
 
        case RIO_ZOMBIE_RTA:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_ZOMBIE_RTA\n");
-               return RIOCommandRta(p, (unsigned long)arg, RIOZombieRta);
+               return RIOCommandRta(p, arg, RIOZombieRta);
 
        case RIO_IDENTIFY_RTA:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_IDENTIFY_RTA\n");
-               return RIOIdentifyRta(p, arg);
+               return RIOIdentifyRta(p, argp);
 
        case RIO_KILL_NEIGHBOUR:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_KILL_NEIGHBOUR\n");
-               return RIOKillNeighbour(p, arg);
+               return RIOKillNeighbour(p, argp);
 
        case SPECIAL_RUP_CMD:
                {
                        struct CmdBlk *CmdBlkP;
 
                        rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD\n");
-                       if (copy_from_user(&SpecialRupCmd, arg, sizeof(SpecialRupCmd))) {
+                       if (copy_from_user(&SpecialRupCmd, argp, sizeof(SpecialRupCmd))) {
                                rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD copy failed\n");
                                p->RIOError.Error = COPYIN_FAILED;
                                return -EFAULT;
@@ -239,7 +247,7 @@ int su;
                if ((retval = RIOApel(p)) != 0)
                        return retval;
 
-               if (copy_to_user(arg, p->RIOConnectTable, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
+               if (copy_to_user(argp, p->RIOConnectTable, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE copy failed\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -284,7 +292,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&p->RIOConnectTable[0], arg, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
+               if (copy_from_user(&p->RIOConnectTable[0], argp, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE copy failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -330,7 +338,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_to_user(arg, p->RIOBindTab, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
+               if (copy_to_user(argp, p->RIOBindTab, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS copy failed\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -349,7 +357,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&p->RIOBindTab[0], arg, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
+               if (copy_from_user(&p->RIOBindTab[0], argp, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS copy failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -373,12 +381,12 @@ int su;
                        for (Entry = 0; Entry < MAX_RTA_BINDINGS; Entry++) {
                                if ((EmptySlot == -1) && (p->RIOBindTab[Entry] == 0L))
                                        EmptySlot = Entry;
-                               else if (p->RIOBindTab[Entry] == (long)arg) {
+                               else if (p->RIOBindTab[Entry] == arg) {
                                        /*
                                         ** Already exists - delete
                                         */
                                        p->RIOBindTab[Entry] = 0L;
-                                       rio_dprintk(RIO_DEBUG_CTRL, "Removing Rta %ld from p->RIOBindTab\n", (unsigned long)arg);
+                                       rio_dprintk(RIO_DEBUG_CTRL, "Removing Rta %ld from p->RIOBindTab\n", arg);
                                        return 0;
                                }
                        }
@@ -386,10 +394,10 @@ int su;
                         ** Dosen't exist - add
                         */
                        if (EmptySlot != -1) {
-                               p->RIOBindTab[EmptySlot] = (unsigned long)arg;
-                               rio_dprintk(RIO_DEBUG_CTRL, "Adding Rta %lx to p->RIOBindTab\n", (unsigned long) arg);
+                               p->RIOBindTab[EmptySlot] = arg;
+                               rio_dprintk(RIO_DEBUG_CTRL, "Adding Rta %lx to p->RIOBindTab\n", arg);
                        } else {
-                               rio_dprintk(RIO_DEBUG_CTRL, "p->RIOBindTab full! - Rta %lx not added\n", (unsigned long) arg);
+                               rio_dprintk(RIO_DEBUG_CTRL, "p->RIOBindTab full! - Rta %lx not added\n", arg);
                                return -ENOMEM;
                        }
                        return 0;
@@ -397,7 +405,7 @@ int su;
 
        case RIO_RESUME:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME\n");
-               port = (unsigned long) arg;
+               port = arg;
                if ((port < 0) || (port > 511)) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Bad port number %d\n", port);
                        p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
@@ -433,7 +441,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&MapEnt, arg, sizeof(MapEnt))) {
+               if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "Copy from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -447,7 +455,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&MapEnt, arg, sizeof(MapEnt))) {
+               if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "Copy from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -461,7 +469,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&MapEnt, arg, sizeof(MapEnt))) {
+               if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "Copy from data space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -469,14 +477,14 @@ int su;
                return RIODeleteRta(p, &MapEnt);
 
        case RIO_QUICK_CHECK:
-               if (copy_to_user(arg, &p->RIORtaDisCons, sizeof(unsigned int))) {
+               if (copy_to_user(argp, &p->RIORtaDisCons, sizeof(unsigned int))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
                return 0;
 
        case RIO_LAST_ERROR:
-               if (copy_to_user(arg, &p->RIOError, sizeof(struct Error)))
+               if (copy_to_user(argp, &p->RIOError, sizeof(struct Error)))
                        return -EFAULT;
                return 0;
 
@@ -485,7 +493,7 @@ int su;
                return -EINVAL;
 
        case RIO_GET_MODTYPE:
-               if (copy_from_user(&port, arg, sizeof(unsigned int))) {
+               if (copy_from_user(&port, argp, sizeof(unsigned int))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -505,7 +513,7 @@ int su;
                 ** Return module type of port
                 */
                port = PortP->HostP->UnixRups[PortP->RupNum].ModTypes;
-               if (copy_to_user(arg, &port, sizeof(unsigned int))) {
+               if (copy_to_user(argp, &port, sizeof(unsigned int))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
@@ -521,7 +529,7 @@ int su;
 
        case RIO_SETUP_PORTS:
                rio_dprintk(RIO_DEBUG_CTRL, "Setup ports\n");
-               if (copy_from_user(&PortSetup, arg, sizeof(PortSetup))) {
+               if (copy_from_user(&PortSetup, argp, sizeof(PortSetup))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        rio_dprintk(RIO_DEBUG_CTRL, "EFAULT");
                        return -EFAULT;
@@ -551,7 +559,7 @@ int su;
 
        case RIO_GET_PORT_SETUP:
                rio_dprintk(RIO_DEBUG_CTRL, "Get port setup\n");
-               if (copy_from_user(&PortSetup, arg, sizeof(PortSetup))) {
+               if (copy_from_user(&PortSetup, argp, sizeof(PortSetup))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -572,7 +580,7 @@ int su;
                PortSetup.XpOn[MAX_XP_CTRL_LEN - 1] = '\0';
                PortSetup.XpOff[MAX_XP_CTRL_LEN - 1] = '\0';
 
-               if (copy_to_user(arg, &PortSetup, sizeof(PortSetup))) {
+               if (copy_to_user(argp, &PortSetup, sizeof(PortSetup))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
@@ -580,7 +588,7 @@ int su;
 
        case RIO_GET_PORT_PARAMS:
                rio_dprintk(RIO_DEBUG_CTRL, "Get port params\n");
-               if (copy_from_user(&PortParams, arg, sizeof(struct PortParams))) {
+               if (copy_from_user(&PortParams, argp, sizeof(struct PortParams))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -593,7 +601,7 @@ int su;
                PortParams.State = PortP->State;
                rio_dprintk(RIO_DEBUG_CTRL, "Port %d\n", PortParams.Port);
 
-               if (copy_to_user(arg, &PortParams, sizeof(struct PortParams))) {
+               if (copy_to_user(argp, &PortParams, sizeof(struct PortParams))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
@@ -601,7 +609,7 @@ int su;
 
        case RIO_GET_PORT_TTY:
                rio_dprintk(RIO_DEBUG_CTRL, "Get port tty\n");
-               if (copy_from_user(&PortTty, arg, sizeof(struct PortTty))) {
+               if (copy_from_user(&PortTty, argp, sizeof(struct PortTty))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -612,14 +620,14 @@ int su;
 
                rio_dprintk(RIO_DEBUG_CTRL, "Port %d\n", PortTty.port);
                PortP = (p->RIOPortp[PortTty.port]);
-               if (copy_to_user(arg, &PortTty, sizeof(struct PortTty))) {
+               if (copy_to_user(argp, &PortTty, sizeof(struct PortTty))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
                return retval;
 
        case RIO_SET_PORT_TTY:
-               if (copy_from_user(&PortTty, arg, sizeof(struct PortTty))) {
+               if (copy_from_user(&PortTty, argp, sizeof(struct PortTty))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -634,7 +642,7 @@ int su;
 
        case RIO_SET_PORT_PARAMS:
                rio_dprintk(RIO_DEBUG_CTRL, "Set port params\n");
-               if (copy_from_user(&PortParams, arg, sizeof(PortParams))) {
+               if (copy_from_user(&PortParams, argp, sizeof(PortParams))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -650,7 +658,7 @@ int su;
 
        case RIO_GET_PORT_STATS:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_PORT_STATS\n");
-               if (copy_from_user(&portStats, arg, sizeof(struct portStats))) {
+               if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -665,14 +673,14 @@ int su;
                portStats.opens = PortP->opens;
                portStats.closes = PortP->closes;
                portStats.ioctls = PortP->ioctls;
-               if (copy_to_user(arg, &portStats, sizeof(struct portStats))) {
+               if (copy_to_user(argp, &portStats, sizeof(struct portStats))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
                return retval;
 
        case RIO_RESET_PORT_STATS:
-               port = (unsigned long) arg;
+               port = arg;
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESET_PORT_STATS\n");
                if (port >= RIO_PORTS) {
                        p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
@@ -690,7 +698,7 @@ int su;
 
        case RIO_GATHER_PORT_STATS:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_GATHER_PORT_STATS\n");
-               if (copy_from_user(&portStats, arg, sizeof(struct portStats))) {
+               if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -706,7 +714,7 @@ int su;
 
        case RIO_READ_CONFIG:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_CONFIG\n");
-               if (copy_to_user(arg, &p->RIOConf, sizeof(struct Conf))) {
+               if (copy_to_user(argp, &p->RIOConf, sizeof(struct Conf))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
@@ -718,7 +726,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&p->RIOConf, arg, sizeof(struct Conf))) {
+               if (copy_from_user(&p->RIOConf, argp, sizeof(struct Conf))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -746,7 +754,7 @@ int su;
        case RIO_SETDEBUG:
        case RIO_GETDEBUG:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG/RIO_GETDEBUG\n");
-               if (copy_from_user(&DebugCtrl, arg, sizeof(DebugCtrl))) {
+               if (copy_from_user(&DebugCtrl, argp, sizeof(DebugCtrl))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -763,7 +771,7 @@ int su;
                                rio_dprintk(RIO_DEBUG_CTRL, "Get global debug 0x%x wait 0x%x\n", p->rio_debug, p->RIODebugWait);
                                DebugCtrl.Debug = p->rio_debug;
                                DebugCtrl.Wait = p->RIODebugWait;
-                               if (copy_to_user(arg, &DebugCtrl, sizeof(DebugCtrl))) {
+                               if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
                                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
                                        p->RIOError.Error = COPYOUT_FAILED;
                                        return -EFAULT;
@@ -785,7 +793,7 @@ int su;
                } else {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
                        DebugCtrl.Debug = p->RIOPortp[DebugCtrl.SysPort]->Debug;
-                       if (copy_to_user(arg, &DebugCtrl, sizeof(DebugCtrl))) {
+                       if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
                                rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG: Bad copy to user space\n");
                                p->RIOError.Error = COPYOUT_FAILED;
                                return -EFAULT;
@@ -800,7 +808,7 @@ int su;
                 ** textual null terminated string.
                 */
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID\n");
-               if (copy_to_user(arg, RIOVersid(), sizeof(struct rioVersion))) {
+               if (copy_to_user(argp, RIOVersid(), sizeof(struct rioVersion))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID: Bad copy to user space (host=%d)\n", Host);
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -813,7 +821,7 @@ int su;
                 ** at init time.
                 */
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS\n");
-               if (copy_to_user(arg, &p->RIONumHosts, sizeof(p->RIONumHosts))) {
+               if (copy_to_user(argp, &p->RIONumHosts, sizeof(p->RIONumHosts))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS: Bad copy to user space\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -824,7 +832,7 @@ int su;
                /*
                 ** Kill host. This may not be in the final version...
                 */
-               rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD %ld\n", (unsigned long) arg);
+               rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD %ld\n", arg);
                if (!su) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD: Not super user\n");
                        p->RIOError.Error = NOT_SUPER_USER;
@@ -858,7 +866,7 @@ int su;
                        p->RIOError.Error = NOT_SUPER_USER;
                        return -EPERM;
                }
-               if (copy_from_user(&DownLoad, arg, sizeof(DownLoad))) {
+               if (copy_from_user(&DownLoad, argp, sizeof(DownLoad))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Copy in from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -888,7 +896,7 @@ int su;
                {
                        unsigned int host;
 
-                       if (copy_from_user(&host, arg, sizeof(host))) {
+                       if (copy_from_user(&host, argp, sizeof(host))) {
                                rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
                                p->RIOError.Error = COPYIN_FAILED;
                                return -EFAULT;
@@ -897,7 +905,7 @@ int su;
                         ** Fetch the parmmap
                         */
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS\n");
-                       if (copy_to_user(arg, p->RIOHosts[host].ParmMapP, sizeof(PARM_MAP))) {
+                       if (copy_from_io(argp, p->RIOHosts[host].ParmMapP, sizeof(PARM_MAP))) {
                                p->RIOError.Error = COPYOUT_FAILED;
                                rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS: Copy out to user space failed\n");
                                return -EFAULT;
@@ -907,7 +915,7 @@ int su;
 
        case RIO_HOST_REQ:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ\n");
-               if (copy_from_user(&HostReq, arg, sizeof(HostReq))) {
+               if (copy_from_user(&HostReq, argp, sizeof(HostReq))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -928,7 +936,7 @@ int su;
 
        case RIO_HOST_DPRAM:
                rio_dprintk(RIO_DEBUG_CTRL, "Request for DPRAM\n");
-               if (copy_from_user(&HostDpRam, arg, sizeof(HostDpRam))) {
+               if (copy_from_user(&HostDpRam, argp, sizeof(HostDpRam))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Copy in from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -945,13 +953,13 @@ int su;
                        /* It's hardware like this that really gets on my tits. */
                        static unsigned char copy[sizeof(struct DpRam)];
                        for (off = 0; off < sizeof(struct DpRam); off++)
-                               copy[off] = readb(&p->RIOHosts[HostDpRam.HostNum].Caddr[off]);
+                               copy[off] = readb(p->RIOHosts[HostDpRam.HostNum].Caddr + off);
                        if (copy_to_user(HostDpRam.DpRamP, copy, sizeof(struct DpRam))) {
                                p->RIOError.Error = COPYOUT_FAILED;
                                rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
                                return -EFAULT;
                        }
-               } else if (copy_to_user(HostDpRam.DpRamP, p->RIOHosts[HostDpRam.HostNum].Caddr, sizeof(struct DpRam))) {
+               } else if (copy_from_io(HostDpRam.DpRamP, p->RIOHosts[HostDpRam.HostNum].Caddr, sizeof(struct DpRam))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
                        return -EFAULT;
@@ -960,13 +968,13 @@ int su;
 
        case RIO_SET_BUSY:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY\n");
-               if ((unsigned long) arg > 511) {
-                       rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY: Bad port number %ld\n", (unsigned long) arg);
+               if (arg > 511) {
+                       rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY: Bad port number %ld\n", arg);
                        p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
                        return -EINVAL;
                }
                rio_spin_lock_irqsave(&PortP->portSem, flags);
-               p->RIOPortp[(unsigned long) arg]->State |= RIO_BUSY;
+               p->RIOPortp[arg]->State |= RIO_BUSY;
                rio_spin_unlock_irqrestore(&PortP->portSem, flags);
                return retval;
 
@@ -976,7 +984,7 @@ int su;
                 ** (probably for debug reasons)
                 */
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT\n");
-               if (copy_from_user(&PortReq, arg, sizeof(PortReq))) {
+               if (copy_from_user(&PortReq, argp, sizeof(PortReq))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Copy in from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -1001,7 +1009,7 @@ int su;
                 ** (probably for debug reasons)
                 */
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP\n");
-               if (copy_from_user(&RupReq, arg, sizeof(RupReq))) {
+               if (copy_from_user(&RupReq, argp, sizeof(RupReq))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Copy in from user space failed\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -1025,7 +1033,7 @@ int su;
                }
                rio_dprintk(RIO_DEBUG_CTRL, "Request for rup %d from host %d\n", RupReq.RupNum, RupReq.HostNum);
 
-               if (copy_to_user(HostP->UnixRups[RupReq.RupNum].RupP, RupReq.RupP, sizeof(struct RUP))) {
+               if (copy_from_io(RupReq.RupP, HostP->UnixRups[RupReq.RupNum].RupP, sizeof(struct RUP))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Bad copy to user space\n");
                        return -EFAULT;
@@ -1038,7 +1046,7 @@ int su;
                 ** (probably for debug reasons)
                 */
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB\n");
-               if (copy_from_user(&LpbReq, arg, sizeof(LpbReq))) {
+               if (copy_from_user(&LpbReq, argp, sizeof(LpbReq))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy from user space\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -1062,7 +1070,7 @@ int su;
                }
                rio_dprintk(RIO_DEBUG_CTRL, "Request for lpb %d from host %d\n", LpbReq.Link, LpbReq.Host);
 
-               if (copy_to_user(LpbReq.LpbP, &HostP->LinkStrP[LpbReq.Link], sizeof(struct LPB))) {
+               if (copy_from_io(LpbReq.LpbP, &HostP->LinkStrP[LpbReq.Link], sizeof(struct LPB))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy to user space\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -1136,7 +1144,7 @@ int su;
        case RIO_MAP_B110_TO_110:
        case RIO_MAP_B110_TO_115200:
                rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping\n");
-               port = (unsigned long) arg;
+               port = arg;
                if (port < 0 || port > 511) {
                        rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", port);
                        p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
@@ -1166,7 +1174,7 @@ int su;
 
        case RIO_SEND_PACKET:
                rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET\n");
-               if (copy_from_user(&SendPack, arg, sizeof(SendPack))) {
+               if (copy_from_user(&SendPack, argp, sizeof(SendPack))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET: Bad copy from user space\n");
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
@@ -1210,7 +1218,7 @@ int su;
                return su ? 0 : -EPERM;
 
        case RIO_WHAT_MESG:
-               if (copy_to_user(arg, &p->RIONoMessage, sizeof(p->RIONoMessage))) {
+               if (copy_to_user(argp, &p->RIONoMessage, sizeof(p->RIONoMessage))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_WHAT_MESG: Bad copy to user space\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -1218,7 +1226,7 @@ int su;
                return 0;
 
        case RIO_MEM_DUMP:
-               if (copy_from_user(&SubCmd, arg, sizeof(struct SubCmdStruct))) {
+               if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -1248,7 +1256,7 @@ int su;
                        PortP->State |= RIO_BUSY;
 
                rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-               if (copy_to_user(arg, p->RIOMemDump, MEMDUMP_SIZE)) {
+               if (copy_to_user(argp, p->RIOMemDump, MEMDUMP_SIZE)) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP copy failed\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -1256,30 +1264,30 @@ int su;
                return 0;
 
        case RIO_TICK:
-               if ((unsigned long) arg >= p->RIONumHosts)
+               if (arg >= p->RIONumHosts)
                        return -EINVAL;
-               rio_dprintk(RIO_DEBUG_CTRL, "Set interrupt for host %ld\n", (unsigned long) arg);
-               writeb(0xFF, &p->RIOHosts[(unsigned long) arg].SetInt);
+               rio_dprintk(RIO_DEBUG_CTRL, "Set interrupt for host %ld\n", arg);
+               writeb(0xFF, &p->RIOHosts[arg].SetInt);
                return 0;
 
        case RIO_TOCK:
-               if ((unsigned long) arg >= p->RIONumHosts)
+               if (arg >= p->RIONumHosts)
                        return -EINVAL;
-               rio_dprintk(RIO_DEBUG_CTRL, "Clear interrupt for host %ld\n", (unsigned long) arg);
-               writeb(0xFF, &p->RIOHosts[(unsigned long) arg].ResetInt);
+               rio_dprintk(RIO_DEBUG_CTRL, "Clear interrupt for host %ld\n", arg);
+               writeb(0xFF, &p->RIOHosts[arg].ResetInt);
                return 0;
 
        case RIO_READ_CHECK:
                /* Check reads for pkts with data[0] the same */
                p->RIOReadCheck = !p->RIOReadCheck;
-               if (copy_to_user(arg, &p->RIOReadCheck, sizeof(unsigned int))) {
+               if (copy_to_user(argp, &p->RIOReadCheck, sizeof(unsigned int))) {
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
                }
                return 0;
 
        case RIO_READ_REGISTER:
-               if (copy_from_user(&SubCmd, arg, sizeof(struct SubCmdStruct))) {
+               if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
                        p->RIOError.Error = COPYIN_FAILED;
                        return -EFAULT;
                }
@@ -1314,7 +1322,7 @@ int su;
                        PortP->State |= RIO_BUSY;
 
                rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-               if (copy_to_user(arg, &p->CdRegister, sizeof(unsigned int))) {
+               if (copy_to_user(argp, &p->CdRegister, sizeof(unsigned int))) {
                        rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER copy failed\n");
                        p->RIOError.Error = COPYOUT_FAILED;
                        return -EFAULT;
@@ -1327,10 +1335,10 @@ int su;
                 */
        case RIO_MAKE_DEV:
                {
-                       unsigned int port = (unsigned long) arg & RIO_MODEM_MASK;
+                       unsigned int port = arg & RIO_MODEM_MASK;
                        unsigned int ret;
 
-                       switch ((unsigned long) arg & RIO_DEV_MASK) {
+                       switch (arg & RIO_DEV_MASK) {
                        case RIO_DEV_DIRECT:
                                ret = drv_makedev(MAJOR(dev), port);
                                rio_dprintk(RIO_DEBUG_CTRL, "Makedev direct 0x%x is 0x%x\n", port, ret);
@@ -1358,7 +1366,7 @@ int su;
                        int mino;
                        unsigned long ret;
 
-                       dv = (dev_t) ((unsigned long) arg);
+                       dv = (dev_t) (arg);
                        mino = RIO_UNMODEM(dv);
 
                        if (RIO_ISMODEM(dv)) {