34 files changed, 173 insertions, 72 deletions

diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 4c0e08685705..5f49280779fb 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -38,6 +38,7 @@
 #include <linux/irq.h>
 
 #include <asm/ptrace.h>
+#include <asm/irq_regs.h>
 
 /* Whether we react on sysrq keys or just ignore them */
 int sysrq_enabled = 1;
diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c
index 0cdbaa70cf9f..d0b94dd1af6d 100644
--- a/drivers/char/vme_scc.c
+++ b/drivers/char/vme_scc.c
@@ -593,7 +593,7 @@ static void scc_enable_tx_interrupts(void *ptr)
         local_irq_save(flags);
         SCCmod(INT_AND_DMA_REG, 0xff, IDR_TX_INT_ENAB);
         /* restart the transmitter */
-        scc_tx_int (0, port, 0);
+        scc_tx_int (0, port);
         local_irq_restore(flags);
 }
 
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
index 66f6064f4640..09c9e7936b0d 100644
--- a/drivers/ide/mips/swarm.c
+++ b/drivers/ide/mips/swarm.c
@@ -4,6 +4,7 @@
  *      Author: Manish Lachwani, mlachwani@mvista.com
  * Copyright (C) 2004  MIPS Technologies, Inc.  All rights reserved.
  *      Author: Maciej W. Rozycki <macro@mips.com>
+ * Copyright (c) 2006  Maciej W. Rozycki
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -127,6 +128,7 @@ static int __devinit swarm_ide_probe(struct device *dev)
         memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
         hwif->irq = hwif->hw.irq;
 
+        probe_hwif_init(hwif);
         dev_set_drvdata(dev, hwif);
 
         return 0;
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index c9b0b8978cd8..e774dd31e99b 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -328,7 +328,7 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
         kbd->dev->id.vendor     = PCI_VENDOR_ID_HP;
         kbd->dev->id.product    = 0x0001; /* TODO: get from kbd->rsc */
         kbd->dev->id.version    = 0x0100; /* TODO: get from kbd->rsc */
-        kbd->dev->dev           = &serio->dev;
+        kbd->dev->cdev.dev      = &serio->dev;
 
         for (i = 0; i < 128; i++) {
                 set_bit(hil_kbd_set1[i], kbd->dev->keybit);
diff --git a/drivers/input/mouse/hil_ptr.c b/drivers/input/mouse/hil_ptr.c
index 402b057e986e..4f2b503c1ac7 100644
--- a/drivers/input/mouse/hil_ptr.c
+++ b/drivers/input/mouse/hil_ptr.c
@@ -375,7 +375,7 @@ static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
         ptr->dev->id.vendor     = PCI_VENDOR_ID_HP;
         ptr->dev->id.product    = 0x0001; /* TODO: get from ptr->rsc */
         ptr->dev->id.version    = 0x0100; /* TODO: get from ptr->rsc */
-        ptr->dev->dev           = &serio->dev;
+        ptr->dev->cdev.dev      = &serio->dev;
 
         input_register_device(ptr->dev);
         printk(KERN_INFO "input: %s (%s), ID: %d\n",
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index 081fdc3c7737..74f14e097789 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -166,7 +166,7 @@ static inline int gscps2_writeb_output(struct gscps2port *ps2port, u8 data)
 
         /* make sure any received data is returned as fast as possible */
         /* this is important e.g. when we set the LEDs on the keyboard */
-        gscps2_interrupt(0, NULL, NULL);
+        gscps2_interrupt(0, NULL);
 
         return 1;
 }
@@ -306,7 +306,7 @@ static int gscps2_open(struct serio *port)
         /* enable it */
         gscps2_enable(ps2port, ENABLE);
 
-        gscps2_interrupt(0, NULL, NULL);
+        gscps2_interrupt(0, NULL);
 
         return 0;
 }
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index bbbe15e21904..bdfde046b741 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -162,10 +162,10 @@ static void hil_mlc_send_polls(hil_mlc *mlc) {
                 if (did != (p & HIL_PKT_ADDR_MASK) >> 8) {
                         if (drv == NULL || drv->interrupt == NULL) goto skip;
 
-                        drv->interrupt(serio, 0, 0, NULL);
-                        drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-                        drv->interrupt(serio, HIL_PKT_CMD >> 8,  0, NULL);
-                        drv->interrupt(serio, HIL_CMD_POL + cnt, 0, NULL);
+                        drv->interrupt(serio, 0, 0);
+                        drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+                        drv->interrupt(serio, HIL_PKT_CMD >> 8,  0);
+                        drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
                 skip:
                         did = (p & HIL_PKT_ADDR_MASK) >> 8;
                         serio = did ? mlc->serio[mlc->di_map[did-1]] : NULL;
@@ -174,10 +174,10 @@ static void hil_mlc_send_polls(hil_mlc *mlc) {
                 }
                 cnt++; i++;
                 if (drv == NULL || drv->interrupt == NULL) continue;
-                drv->interrupt(serio, (p >> 24), 0, NULL);
-                drv->interrupt(serio, (p >> 16) & 0xff, 0, NULL);
-                drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0, NULL);
-                drv->interrupt(serio, p & 0xff, 0, NULL);
+                drv->interrupt(serio, (p >> 24), 0);
+                drv->interrupt(serio, (p >> 16) & 0xff, 0);
+                drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
+                drv->interrupt(serio, p & 0xff, 0);
         }
 }
 
@@ -780,16 +780,16 @@ static int hil_mlc_serio_write(struct serio *serio, unsigned char c) {
         while ((last != idx) && (*last == 0)) last--;
 
         while (idx != last) {
-                drv->interrupt(serio, 0, 0, NULL);
-                drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-                drv->interrupt(serio, 0, 0, NULL);
-                drv->interrupt(serio, *idx, 0, NULL);
+                drv->interrupt(serio, 0, 0);
+                drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+                drv->interrupt(serio, 0, 0);
+                drv->interrupt(serio, *idx, 0);
                 idx++;
         }
-        drv->interrupt(serio, 0, 0, NULL);
-        drv->interrupt(serio, HIL_ERR_INT >> 16, 0, NULL);
-        drv->interrupt(serio, HIL_PKT_CMD >> 8, 0, NULL);
-        drv->interrupt(serio, *idx, 0, NULL);
+        drv->interrupt(serio, 0, 0);
+        drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+        drv->interrupt(serio, HIL_PKT_CMD >> 8, 0);
+        drv->interrupt(serio, *idx, 0);
         
         mlc->serio_oidx[map->didx] = 0;
         mlc->serio_opacket[map->didx] = 0;
diff --git a/drivers/macintosh/adb-iop.c b/drivers/macintosh/adb-iop.c
index 1ffee7aaff20..17ef5d3c01b4 100644
--- a/drivers/macintosh/adb-iop.c
+++ b/drivers/macintosh/adb-iop.c
@@ -266,7 +266,7 @@ int adb_iop_autopoll(int devs)
 void adb_iop_poll(void)
 {
         if (adb_iop_state == idle) adb_iop_start();
-        iop_ism_irq(0, (void *) ADB_IOP, NULL);
+        iop_ism_irq(0, (void *) ADB_IOP);
 }
 
 int adb_iop_reset_bus(void)
diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c
index ad4bd579f610..5d88d5b0ad99 100644
--- a/drivers/macintosh/via-macii.c
+++ b/drivers/macintosh/via-macii.c
@@ -295,7 +295,7 @@ static void macii_poll(void)
         unsigned long flags;
 
         local_irq_save(flags);
-        if (via[IFR] & SR_INT) macii_interrupt(0, NULL, NULL);
+        if (via[IFR] & SR_INT) macii_interrupt(0, NULL);
         local_irq_restore(flags);
 }
 
diff --git a/drivers/macintosh/via-maciisi.c b/drivers/macintosh/via-maciisi.c
index 789ee52086fe..1f0aa5dc9aa5 100644
--- a/drivers/macintosh/via-maciisi.c
+++ b/drivers/macintosh/via-maciisi.c
@@ -421,7 +421,7 @@ maciisi_poll(void)
 
         local_irq_save(flags);
         if (via[IFR] & SR_INT) {
-                maciisi_interrupt(0, NULL, NULL);
+                maciisi_interrupt(0, NULL);
         }
         else /* avoid calling this function too quickly in a loop */
                 udelay(ADB_DELAY);
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index 98ec915d0409..d9986f3a3fbf 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -221,7 +221,7 @@ pmu_init(void)
                 }
                 if (pmu_state == idle) {
                         adb_int_pending = 1;
-                        pmu_interrupt(0, NULL, NULL);
+                        pmu_interrupt(0, NULL);
                 }
                 pmu_poll();
                 udelay(10);
@@ -562,11 +562,11 @@ pmu_poll(void)
         local_irq_save(flags);
         if (via1[IFR] & SR_INT) {
                 via1[IFR] = SR_INT;
-                pmu_interrupt(IRQ_MAC_ADB_SR, NULL, NULL);
+                pmu_interrupt(IRQ_MAC_ADB_SR, NULL);
         }
         if (via1[IFR] & CB1_INT) {
                 via1[IFR] = CB1_INT;
-                pmu_interrupt(IRQ_MAC_ADB_CL, NULL, NULL);
+                pmu_interrupt(IRQ_MAC_ADB_CL, NULL);
         }
         local_irq_restore(flags);
 }
diff --git a/drivers/md/md.c b/drivers/md/md.c
index cb8281605be8..57fa64f93e5f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3849,6 +3849,7 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev)
         }
         clear_bit(In_sync, &rdev->flags);
         rdev->desc_nr = -1;
+        rdev->saved_raid_disk = -1;
         err = bind_rdev_to_array(rdev, mddev);
         if (err)
                 goto abort_export;
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index c1293f1bda87..f9027c8db792 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -28,6 +28,7 @@
 #include <linux/kdev_t.h>
 #include <linux/blkdev.h>
 #include <linux/mutex.h>
+#include <linux/scatterlist.h>
 
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -154,6 +155,71 @@ static int mmc_blk_prep_rq(struct mmc_queue *mq, struct request *req)
         return stat;
 }
 
+static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
+{
+        int err;
+        u32 blocks;
+
+        struct mmc_request mrq;
+        struct mmc_command cmd;
+        struct mmc_data data;
+        unsigned int timeout_us;
+
+        struct scatterlist sg;
+
+        memset(&cmd, 0, sizeof(struct mmc_command));
+
+        cmd.opcode = MMC_APP_CMD;
+        cmd.arg = card->rca << 16;
+        cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
+
+        err = mmc_wait_for_cmd(card->host, &cmd, 0);
+        if ((err != MMC_ERR_NONE) || !(cmd.resp[0] & R1_APP_CMD))
+                return (u32)-1;
+
+        memset(&cmd, 0, sizeof(struct mmc_command));
+
+        cmd.opcode = SD_APP_SEND_NUM_WR_BLKS;
+        cmd.arg = 0;
+        cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
+
+        memset(&data, 0, sizeof(struct mmc_data));
+
+        data.timeout_ns = card->csd.tacc_ns * 100;
+        data.timeout_clks = card->csd.tacc_clks * 100;
+
+        timeout_us = data.timeout_ns / 1000;
+        timeout_us += data.timeout_clks * 1000 /
+                (card->host->ios.clock / 1000);
+
+        if (timeout_us > 100000) {
+                data.timeout_ns = 100000000;
+                data.timeout_clks = 0;
+        }
+
+        data.blksz = 4;
+        data.blocks = 1;
+        data.flags = MMC_DATA_READ;
+        data.sg = &sg;
+        data.sg_len = 1;
+
+        memset(&mrq, 0, sizeof(struct mmc_request));
+
+        mrq.cmd = &cmd;
+        mrq.data = &data;
+
+        sg_init_one(&sg, &blocks, 4);
+
+        mmc_wait_for_req(card->host, &mrq);
+
+        if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE)
+                return (u32)-1;
+
+        blocks = ntohl(blocks);
+
+        return blocks;
+}
+
 static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 {
         struct mmc_blk_data *md = mq->data;
@@ -184,10 +250,13 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 
                 /*
                  * If the host doesn't support multiple block writes, force
-                 * block writes to single block.
+                 * block writes to single block. SD cards are excepted from
+                 * this rule as they support querying the number of
+                 * successfully written sectors.
                  */
                 if (rq_data_dir(req) != READ &&
-                    !(card->host->caps & MMC_CAP_MULTIWRITE))
+                    !(card->host->caps & MMC_CAP_MULTIWRITE) &&
+                    !mmc_card_sd(card))
                         brq.data.blocks = 1;
 
                 if (brq.data.blocks > 1) {
@@ -276,24 +345,41 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
         return 1;
 
  cmd_err:
-        mmc_card_release_host(card);
-
         ret = 1;
 
-        /*
-         * For writes and where the host claims to support proper
-         * error reporting, we first ok the successful blocks.
+        /*
+         * If this is an SD card and we're writing, we can first
+         * mark the known good sectors as ok.
+         *
+         * If the card is not SD, we can still ok written sectors
+         * if the controller can do proper error reporting.
          *
          * For reads we just fail the entire chunk as that should
          * be safe in all cases.
          */
-        if (rq_data_dir(req) != READ &&
-            (card->host->caps & MMC_CAP_MULTIWRITE)) {
+        if (rq_data_dir(req) != READ && mmc_card_sd(card)) {
+                u32 blocks;
+                unsigned int bytes;
+
+                blocks = mmc_sd_num_wr_blocks(card);
+                if (blocks != (u32)-1) {
+                        if (card->csd.write_partial)
+                                bytes = blocks << md->block_bits;
+                        else
+                                bytes = blocks << 9;
+                        spin_lock_irq(&md->lock);
+                        ret = end_that_request_chunk(req, 1, bytes);
+                        spin_unlock_irq(&md->lock);
+                }
+        } else if (rq_data_dir(req) != READ &&
+                   (card->host->caps & MMC_CAP_MULTIWRITE)) {
                 spin_lock_irq(&md->lock);
                 ret = end_that_request_chunk(req, 1, brq.data.bytes_xfered);
                 spin_unlock_irq(&md->lock);
         }
 
+        mmc_card_release_host(card);
+
         spin_lock_irq(&md->lock);
         while (ret) {
                 ret = end_that_request_chunk(req, 0,
diff --git a/drivers/net/7990.c b/drivers/net/7990.c
index 8e996b4a34ea..7733697f7776 100644
--- a/drivers/net/7990.c
+++ b/drivers/net/7990.c
@@ -674,7 +674,7 @@ void lance_poll(struct net_device *dev)
         WRITERAP(lp, LE_CSR0);
         WRITERDP(lp, LE_C0_STRT);
         spin_unlock (&lp->devlock);
-        lance_interrupt(dev->irq, dev, NULL);
+        lance_interrupt(dev->irq, dev);
 }
 #endif
 
diff --git a/drivers/net/lasi_82596.c b/drivers/net/lasi_82596.c
index 8cbd940f0ac2..f4d815bca643 100644
--- a/drivers/net/lasi_82596.c
+++ b/drivers/net/lasi_82596.c
@@ -1252,7 +1252,7 @@ static int __devinit i82596_probe(struct net_device *dev,
 static void i596_poll_controller(struct net_device *dev)
 {
         disable_irq(dev->irq);
-        i596_interrupt(dev->irq, dev, NULL);
+        i596_interrupt(dev->irq, dev);
         enable_irq(dev->irq);
 }
 #endif
diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 506807fa5268..95b6478f55c6 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -1400,7 +1400,7 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 static void smc_poll_controller(struct net_device *dev)
 {
         disable_irq(dev->irq);
-        smc_interrupt(dev->irq, dev, NULL);
+        smc_interrupt(dev->irq, dev);
         enable_irq(dev->irq);
 }
 #endif
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index a0a8fd8d2124..03c763c2d0e0 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -389,7 +389,7 @@ ilr_again:
                 int irq = dino_dev->global_irq[local_irq];
                 DBG(KERN_DEBUG "%s(%d, %p) mask 0x%x\n",
                         __FUNCTION__, irq, intr_dev, mask);
-                __do_IRQ(irq, regs);
+                __do_IRQ(irq);
                 mask &= ~(1 << local_irq);
         } while (mask);
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 094562e044f3..e97cecbc4d18 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -234,7 +234,7 @@ static irqreturn_t eisa_irq(int wax_irq, void *intr_dev)
         }
         spin_unlock_irqrestore(&eisa_irq_lock, flags);
 
-        __do_IRQ(irq, regs);
+        __do_IRQ(irq);
    
         spin_lock_irqsave(&eisa_irq_lock, flags);
         /* unmask */
diff --git a/drivers/parport/parport_mfc3.c b/drivers/parport/parport_mfc3.c
index 6541cde4df00..e5b0a544de40 100644
--- a/drivers/parport/parport_mfc3.c
+++ b/drivers/parport/parport_mfc3.c
@@ -219,7 +219,7 @@ static irqreturn_t mfc3_interrupt(int irq, void *dev_id)
                 if (this_port[i] != NULL)
                         if (pia(this_port[i])->crb & 128) { /* Board caused interrupt */
                                 dummy = pia(this_port[i])->pprb; /* clear irq bit */
-                                parport_generic_irq(irq, this_port[i], regs);
+                                parport_generic_irq(irq, this_port[i]);
                         }
         return IRQ_HANDLED;
 }
diff --git a/drivers/pcmcia/m32r_pcc.c b/drivers/pcmcia/m32r_pcc.c
index 0964fd76bfe3..bbf025874d0c 100644
--- a/drivers/pcmcia/m32r_pcc.c
+++ b/drivers/pcmcia/m32r_pcc.c
@@ -395,7 +395,7 @@ static irqreturn_t pcc_interrupt(int irq, void *dev)
 
 static void pcc_interrupt_wrapper(u_long data)
 {
-        pcc_interrupt(0, NULL, NULL);
+        pcc_interrupt(0, NULL);
         init_timer(&poll_timer);
         poll_timer.expires = jiffies + poll_interval;
         add_timer(&poll_timer);
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 222a8a71a5e8..53db58a68617 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -218,7 +218,7 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr)
 
 /* Handle external interruption. */
 static void
-dasd_ext_handler(struct pt_regs *regs, __u16 code)
+dasd_ext_handler(__u16 code)
 {
         struct dasd_ccw_req *cqr, *next;
         struct dasd_device *device;
diff --git a/drivers/s390/char/ctrlchar.c b/drivers/s390/char/ctrlchar.c
index d83eb6358bac..49e9628d9297 100644
--- a/drivers/s390/char/ctrlchar.c
+++ b/drivers/s390/char/ctrlchar.c
@@ -20,7 +20,7 @@ static int ctrlchar_sysrq_key;
 static void
 ctrlchar_handle_sysrq(void *tty)
 {
-        handle_sysrq(ctrlchar_sysrq_key, NULL, (struct tty_struct *) tty);
+        handle_sysrq(ctrlchar_sysrq_key, (struct tty_struct *) tty);
 }
 
 static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq, NULL);
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 3be06569180d..e3491a5f5219 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -304,7 +304,7 @@ kbd_keycode(struct kbd_data *kbd, unsigned int keycode)
                 if (kbd->sysrq) {
                         if (kbd->sysrq == K(KT_LATIN, '-')) {
                                 kbd->sysrq = 0;
-                                handle_sysrq(value, NULL, kbd->tty);
+                                handle_sysrq(value, kbd->tty);
                                 return;
                         }
                         if (value == '-') {
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 1e3939aeb8ab..4362ff260244 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -26,6 +26,7 @@
 #define MONWRITE_MAX_DATALEN    4024
 
 static int mon_max_bufs = 255;
+static int mon_buf_count;
 
 struct mon_buf {
         struct list_head list;
@@ -40,7 +41,6 @@ struct mon_private {
         size_t hdr_to_read;
         size_t data_to_read;
         struct mon_buf *current_buf;
-        int mon_buf_count;
 };
 
 /*
@@ -99,13 +99,13 @@ static int monwrite_new_hdr(struct mon_private *monpriv)
                         rc = monwrite_diag(monhdr, monbuf->data,
                                            APPLDATA_STOP_REC);
                         list_del(&monbuf->list);
-                        monpriv->mon_buf_count--;
+                        mon_buf_count--;
                         kfree(monbuf->data);
                         kfree(monbuf);
                         monbuf = NULL;
                 }
         } else {
-                if (monpriv->mon_buf_count >= mon_max_bufs)
+                if (mon_buf_count >= mon_max_bufs)
                         return -ENOSPC;
                 monbuf = kzalloc(sizeof(struct mon_buf), GFP_KERNEL);
                 if (!monbuf)
@@ -118,7 +118,7 @@ static int monwrite_new_hdr(struct mon_private *monpriv)
                 }
                 monbuf->hdr = *monhdr;
                 list_add_tail(&monbuf->list, &monpriv->list);
-                monpriv->mon_buf_count++;
+                mon_buf_count++;
         }
         monpriv->current_buf = monbuf;
         return 0;
@@ -186,7 +186,7 @@ static int monwrite_close(struct inode *inode, struct file *filp)
                 if (entry->hdr.mon_function != MONWRITE_GEN_EVENT)
                         monwrite_diag(&entry->hdr, entry->data,
                                       APPLDATA_STOP_REC);
-                monpriv->mon_buf_count--;
+                mon_buf_count--;
                 list_del(&entry->list);
                 kfree(entry->data);
                 kfree(entry);
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 31e335751d6d..8a056df09d6b 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -324,7 +324,7 @@ __sclp_find_req(u32 sccb)
  * Prepare read event data request if necessary. Start processing of next
  * request on queue. */
 static void
-sclp_interrupt_handler(struct pt_regs *regs, __u16 code)
+sclp_interrupt_handler(__u16 code)
 {
         struct sclp_req *req;
         u32 finished_sccb;
@@ -743,7 +743,7 @@ EXPORT_SYMBOL(sclp_reactivate);
 /* Handler for external interruption used during initialization. Modify
  * request state to done. */
 static void
-sclp_check_handler(struct pt_regs *regs, __u16 code)
+sclp_check_handler(__u16 code)
 {
         u32 finished_sccb;
 
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 3bb4e472d73d..07c7f19339d2 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -200,11 +200,13 @@ css_get_ssd_info(struct subchannel *sch)
         spin_unlock_irq(&sch->lock);
         free_page((unsigned long)page);
         if (!ret) {
-                int j, chpid;
+                int j, chpid, mask;
                 /* Allocate channel path structures, if needed. */
                 for (j = 0; j < 8; j++) {
+                        mask = 0x80 >> j;
                         chpid = sch->ssd_info.chpid[j];
-                        if (chpid && (get_chp_status(chpid) < 0))
+                        if ((sch->schib.pmcw.pim & mask) &&
+                            (get_chp_status(chpid) < 0))
                             new_channel_path(chpid);
                 }
         }
@@ -222,13 +224,15 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
 
         sch = to_subchannel(dev);
         chpid = data;
-        for (j = 0; j < 8; j++)
-                if (sch->schib.pmcw.chpid[j] == chpid->id)
+        for (j = 0; j < 8; j++) {
+                mask = 0x80 >> j;
+                if ((sch->schib.pmcw.pim & mask) &&
+                    (sch->schib.pmcw.chpid[j] == chpid->id))
                         break;
+        }
         if (j >= 8)
                 return 0;
 
-        mask = 0x80 >> j;
         spin_lock_irq(&sch->lock);
 
         stsch(sch->schid, &schib);
@@ -620,7 +624,7 @@ __chp_add_new_sch(struct subchannel_id schid)
 static int
 __chp_add(struct subchannel_id schid, void *data)
 {
-        int i;
+        int i, mask;
         struct channel_path *chp;
         struct subchannel *sch;
 
@@ -630,8 +634,10 @@ __chp_add(struct subchannel_id schid, void *data)
                 /* Check if the subchannel is now available. */
                 return __chp_add_new_sch(schid);
         spin_lock_irq(&sch->lock);
-        for (i=0; i<8; i++)
-                if (sch->schib.pmcw.chpid[i] == chp->id) {
+        for (i=0; i<8; i++) {
+                mask = 0x80 >> i;
+                if ((sch->schib.pmcw.pim & mask) &&
+                    (sch->schib.pmcw.chpid[i] == chp->id)) {
                         if (stsch(sch->schid, &sch->schib) != 0) {
                                 /* Endgame. */
                                 spin_unlock_irq(&sch->lock);
@@ -639,6 +645,7 @@ __chp_add(struct subchannel_id schid, void *data)
                         }
                         break;
                 }
+        }
         if (i==8) {
                 spin_unlock_irq(&sch->lock);
                 return 0;
@@ -646,7 +653,7 @@ __chp_add(struct subchannel_id schid, void *data)
         sch->lpm = ((sch->schib.pmcw.pim &
                      sch->schib.pmcw.pam &
                      sch->schib.pmcw.pom)
-                    | 0x80 >> i) & sch->opm;
+                    | mask) & sch->opm;
 
         if (sch->driver && sch->driver->verify)
                 sch->driver->verify(&sch->dev);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 2e2882daefbb..f18b1623cad7 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -19,6 +19,7 @@
 #include <asm/cio.h>
 #include <asm/delay.h>
 #include <asm/irq.h>
+#include <asm/irq_regs.h>
 #include <asm/setup.h>
 #include "airq.h"
 #include "cio.h"
@@ -606,15 +607,17 @@ do_IRQ (struct pt_regs *regs)
         struct tpi_info *tpi_info;
         struct subchannel *sch;
         struct irb *irb;
+        struct pt_regs *old_regs;
 
         irq_enter ();
+        old_regs = set_irq_regs(regs);
         asm volatile ("mc 0,0");
         if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
                 /**
                  * Make sure that the i/o interrupt did not "overtake"
                  * the last HZ timer interrupt.
                  */
-                account_ticks(regs);
+                account_ticks();
         /*
          * Get interrupt information from lowcore
          */
@@ -652,6 +655,7 @@ do_IRQ (struct pt_regs *regs)
                  * out of the sie which costs more cycles than it saves.
                  */
         } while (!MACHINE_IS_VM && tpi (NULL) != 0);
+        set_irq_regs(old_regs);
         irq_exit ();
 }
 
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index cd30f37fceae..c5ccd20b110c 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1062,7 +1062,7 @@ static int ap_poll_thread(void *data)
         unsigned long flags;
         int requests;
 
-        set_user_nice(current, -20);
+        set_user_nice(current, 19);
         while (1) {
                 if (need_resched()) {
                         schedule();
diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c
index 809dd8d7f47a..1476ce2b437c 100644
--- a/drivers/s390/net/iucv.c
+++ b/drivers/s390/net/iucv.c
@@ -116,7 +116,7 @@ static DEFINE_SPINLOCK(iucv_irq_queue_lock);
  *Internal function prototypes
  */
 static void iucv_tasklet_handler(unsigned long);
-static void iucv_irq_handler(struct pt_regs *, __u16);
+static void iucv_irq_handler(__u16);
 
 static DECLARE_TASKLET(iucv_tasklet,iucv_tasklet_handler,0);
 
@@ -2251,7 +2251,7 @@ iucv_sever(__u16 pathid, __u8 user_data[16])
  * Places the interrupt buffer on a queue and schedules iucv_tasklet_handler().
  */
 static void
-iucv_irq_handler(struct pt_regs *regs, __u16 code)
+iucv_irq_handler(__u16 code)
 {
         iucv_irqdata *irqdata;
 
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index c773e35dace7..1fd3c7590d31 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -466,7 +466,7 @@ static void mesh_start_cmd(struct mesh_state *ms, struct scsi_cmnd *cmd)
                                 dlog(ms, "intr b4 arb, intr/exc/err/fc=%.8x",
                                      MKWORD(mr->interrupt, mr->exception,
                                             mr->error, mr->fifo_count));
-                                mesh_interrupt(0, (void *)ms, NULL);
+                                mesh_interrupt(0, (void *)ms);
                                 if (ms->phase != arbitrating)
                                         return;
                         }
@@ -504,7 +504,7 @@ static void mesh_start_cmd(struct mesh_state *ms, struct scsi_cmnd *cmd)
                 dlog(ms, "intr after disresel, intr/exc/err/fc=%.8x",
                      MKWORD(mr->interrupt, mr->exception,
                             mr->error, mr->fifo_count));
-                mesh_interrupt(0, (void *)ms, NULL);
+                mesh_interrupt(0, (void *)ms);
                 if (ms->phase != arbitrating)
                         return;
                 dlog(ms, "after intr after disresel, intr/exc/err/fc=%.8x",
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index c85ac1a77608..7656a35f5e2f 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -590,7 +590,7 @@ static void m32r_sio_timeout(unsigned long data)
         sts = sio_in(up, SIOSTS);
         if (sts & 0x5) {
                 spin_lock(&up->port.lock);
-                m32r_sio_handle_port(up, sts, NULL);
+                m32r_sio_handle_port(up, sts);
                 spin_unlock(&up->port.lock);
         }
 
diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index aa819d3f8ee5..8ad1b8c5ec5d 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -230,7 +230,7 @@ static void mux_read(struct uart_port *port)
                                 continue;
                 }
 
-                if (uart_handle_sysrq_char(port, data & 0xffu, NULL))
+                if (uart_handle_sysrq_char(port, data & 0xffu))
                         continue;
 
                 tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
diff --git a/drivers/serial/sn_console.c b/drivers/serial/sn_console.c
index 709f93a6c18c..956b2cf08e1e 100644
--- a/drivers/serial/sn_console.c
+++ b/drivers/serial/sn_console.c
@@ -674,7 +674,7 @@ static void sn_sal_timer_poll(unsigned long data)
         if (!port->sc_port.irq) {
                 spin_lock_irqsave(&port->sc_port.lock, flags);
                 if (sn_process_input)
-                        sn_receive_chars(port, NULL, flags);
+                        sn_receive_chars(port, flags);
                 sn_transmit_chars(port, TRANSMIT_RAW);
                 spin_unlock_irqrestore(&port->sc_port.lock, flags);
                 mod_timer(&port->sc_timer,
diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index e08d1a2664e6..fe1fe2f97cb5 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -925,7 +925,7 @@ rescan_all:
                 /* only take off EDs that the HC isn't using, accounting for
                  * frame counter wraps and EDs with partially retired TDs
                  */
-                if (likely (get_irq_regs() && HC_IS_RUNNING(ohci_to_hcd(ohci)->state))) {
+                if (likely (HC_IS_RUNNING(ohci_to_hcd(ohci)->state))) {
                         if (tick_before (tick, ed->tick)) {
 skip_ed:
                                 last = &ed->ed_next;