Merge bk://kernel.bkbits.net/acme/net-2.5

into nuts.ninka.net:/home/davem/src/BK/net-2.5

drivers/ide/ide-disk.c

@@ -72,8 +72,6 @@
 
 #include "legacy/pdc4030.h"
 
-static int driver_blocked;
-
 static inline u32 idedisk_read_24 (ide_drive_t *drive)
 {
 	u8 hcyl = HWIF(drive)->INB(IDE_HCYL_REG);
@@ -132,8 +130,24 @@ static int lba_capacity_is_ok (struct hd_driveid *id)
 	return 0;	/* lba_capacity value may be bad */
 }
 
+static int idedisk_start_tag(ide_drive_t *drive, struct request *rq)
+{
+	unsigned long flags;
+	int ret = 1;
+
+	spin_lock_irqsave(&ide_lock, flags);
+
+	if (ata_pending_commands(drive) < drive->queue_depth)
+		ret = blk_queue_start_tag(&drive->queue, rq);
+
+	spin_unlock_irqrestore(&ide_lock, flags);
+	return ret;
+}
+
 #ifndef CONFIG_IDE_TASKFILE_IO
 
+static int driver_blocked;
+
 /*
  * read_intr() is the handler for disk read/multread interrupts
  */
@@ -344,20 +358,6 @@ static ide_startstop_t multwrite_intr (ide_drive_t *drive)
 	return DRIVER(drive)->error(drive, "multwrite_intr", stat);
 }
 
-static int idedisk_start_tag(ide_drive_t *drive, struct request *rq)
-{
-	unsigned long flags;
-	int ret = 1;
-
-	spin_lock_irqsave(&ide_lock, flags);
-
-	if (ata_pending_commands(drive) < drive->queue_depth)
-		ret = blk_queue_start_tag(&drive->queue, rq);
-
-	spin_unlock_irqrestore(&ide_lock, flags);
-	return ret;
-}
-
 /*
  * do_rw_disk() issues READ and WRITE commands to a disk,
  * using LBA if supported, or CHS otherwise, to address sectors.
@@ -744,7 +744,7 @@ static ide_startstop_t lba_48_rw_disk (ide_drive_t *drive, struct request *rq, u
 		args.tfRegister[IDE_FEATURE_OFFSET] = sectors;
 		args.tfRegister[IDE_NSECTOR_OFFSET] = rq->tag << 3;
 		args.hobRegister[IDE_FEATURE_OFFSET_HOB] = sectors >> 8;
-		args.hobRegister[IDE_NSECT_OFFSET_HOB] = 0;
+		args.hobRegister[IDE_NSECTOR_OFFSET_HOB] = 0;
 	} else {
 		args.tfRegister[IDE_NSECTOR_OFFSET] = sectors;
 		args.hobRegister[IDE_NSECTOR_OFFSET_HOB] = sectors >> 8;

drivers/ide/ide-taskfile.c

@@ -189,15 +189,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
 		case WIN_WRITEDMA_ONCE:
 		case WIN_WRITEDMA:
 		case WIN_WRITEDMA_EXT:
-			if (hwif->ide_dma_write(drive))
-				return ide_stopped;
+			if (!hwif->ide_dma_write(drive))
+				return ide_started;
 			break;
 		case WIN_READDMA_ONCE:
 		case WIN_READDMA:
 		case WIN_READDMA_EXT:
 		case WIN_IDENTIFY_DMA:
-			if (hwif->ide_dma_read(drive))
-				return ide_stopped;
+			if (!hwif->ide_dma_read(drive))
+				return ide_started;
 			break;
 		case WIN_READDMA_QUEUED:
 		case WIN_READDMA_QUEUED_EXT:

drivers/macintosh/macio-adb.c

@@ -63,7 +63,7 @@ static spinlock_t macio_lock = SPIN_LOCK_UNLOCKED;
 
 static int macio_probe(void);
 static int macio_init(void);
-static void macio_adb_interrupt(int irq, void *arg, struct pt_regs *regs);
+static irqreturn_t macio_adb_interrupt(int irq, void *arg, struct pt_regs *regs);
 static int macio_send_request(struct adb_request *req, int sync);
 static int macio_adb_autopoll(int devs);
 static void macio_adb_poll(void);
@@ -198,7 +198,8 @@ static int macio_send_request(struct adb_request *req, int sync)
 	return 0;
 }
 
-static void macio_adb_interrupt(int irq, void *arg, struct pt_regs *regs)
+static irqreturn_t macio_adb_interrupt(int irq, void *arg,
+				       struct pt_regs *regs)
 {
 	int i, n, err;
 	struct adb_request *req;
@@ -206,9 +207,11 @@ static void macio_adb_interrupt(int irq, void *arg, struct pt_regs *regs)
 	int ibuf_len = 0;
 	int complete = 0;
 	int autopoll = 0;
-	
+	int handled = 0;
+
 	spin_lock(&macio_lock);
 	if (in_8(&adb->intr.r) & TAG) {
+		handled = 1;
 		if ((req = current_req) != 0) {
 			/* put the current request in */
 			for (i = 0; i < req->nbytes; ++i)
@@ -229,6 +232,7 @@ static void macio_adb_interrupt(int irq, void *arg, struct pt_regs *regs)
 	}
 
 	if (in_8(&adb->intr.r) & DFB) {
+		handled = 1;
 		err = in_8(&adb->error.r);
 		if (current_req && current_req->sent) {
 			/* this is the response to a command */
@@ -266,6 +270,8 @@ static void macio_adb_interrupt(int irq, void *arg, struct pt_regs *regs)
 	}
 	if (ibuf_len)
 		adb_input(ibuf, ibuf_len, regs, autopoll);
+
+	return IRQ_RETVAL(handled);
 }
 
 static void macio_adb_poll(void)

drivers/macintosh/macserial.c

@@ -154,8 +154,8 @@ static int set_scc_power(struct mac_serial * info, int state);
 static int setup_scc(struct mac_serial * info);
 static void dbdma_reset(volatile struct dbdma_regs *dma);
 static void dbdma_flush(volatile struct dbdma_regs *dma);
-static void rs_txdma_irq(int irq, void *dev_id, struct pt_regs *regs);
-static void rs_rxdma_irq(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t rs_txdma_irq(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t rs_rxdma_irq(int irq, void *dev_id, struct pt_regs *regs);
 static void dma_init(struct mac_serial * info);
 static void rxdma_start(struct mac_serial * info, int current);
 static void rxdma_to_tty(struct mac_serial * info);
@@ -558,18 +558,19 @@ static _INLINE_ void receive_special_dma(struct mac_serial *info)
 /*
  * This is the serial driver's generic interrupt routine
  */
-static void rs_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+static irqreturn_t rs_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 {
 	struct mac_serial *info = (struct mac_serial *) dev_id;
 	unsigned char zs_intreg;
 	int shift;
 	unsigned long flags;
+	int handled = 0;
 
 	if (!(info->flags & ZILOG_INITIALIZED)) {
 		printk(KERN_WARNING "rs_interrupt: irq %d, port not "
 				    "initialized\n", irq);
 		disable_irq(irq);
-		return;
+		return IRQ_NONE;
 	}
 
 	/* NOTE: The read register 3, which holds the irq status,
@@ -595,6 +596,7 @@ static void rs_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 
 		if ((zs_intreg & CHAN_IRQMASK) == 0)
 			break;
+		handled = 1;
 
 		if (zs_intreg & CHBRxIP) {
 			/* If we are doing DMA, we only ask for interrupts
@@ -610,30 +612,32 @@ static void rs_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 			status_handle(info);
 	}
 	spin_unlock_irqrestore(&info->lock, flags);
+	return IRQ_RETVAL(handled);
 }
 
 /* Transmit DMA interrupt - not used at present */
-static void rs_txdma_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rs_txdma_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
+	return IRQ_HANDLED;
 }
 
 /*
  * Receive DMA interrupt.
  */
-static void rs_rxdma_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rs_rxdma_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct mac_serial *info = (struct mac_serial *) dev_id;
 	volatile struct dbdma_cmd *cd;
 
 	if (!info->dma_initted)
-		return;
+		return IRQ_NONE;
 	spin_lock(&info->rx_dma_lock);
 	/* First, confirm that this interrupt is, indeed, coming */
 	/* from Rx DMA */
 	cd = info->rx_cmds[info->rx_cbuf] + 2;
 	if ((in_le16(&cd->xfer_status) & (RUN | ACTIVE)) != (RUN | ACTIVE)) {
 		spin_unlock(&info->rx_dma_lock);
-		return;
+		return IRQ_NONE;
 	}
 	if (info->rx_fbuf != RX_NO_FBUF) {
 		info->rx_cbuf = info->rx_fbuf;
@@ -643,6 +647,7 @@ static void rs_rxdma_irq(int irq, void *dev_id, struct pt_regs *regs)
 			info->rx_fbuf = RX_NO_FBUF;
 	}
 	spin_unlock(&info->rx_dma_lock);
+	return IRQ_HANDLED;
 }
 
 /*
@@ -2660,9 +2665,9 @@ int macserial_init(void)
 	callout_driver.proc_entry = 0;
 
 	if (tty_register_driver(&serial_driver))
-		panic("Couldn't register serial driver\n");
+		printk(KERN_ERR "Error: couldn't register serial driver\n");
 	if (tty_register_driver(&callout_driver))
-		panic("Couldn't register callout driver\n");
+		printk(KERN_ERR "Error: couldn't register callout driver\n");
 
 	for (channel = 0; channel < zs_channels_found; ++channel) {
 #ifdef CONFIG_KGDB

drivers/macintosh/via-cuda.c

@@ -107,7 +107,7 @@ static int cuda_reset_adb_bus(void);
 
 static int cuda_init_via(void);
 static void cuda_start(void);
-static void cuda_interrupt(int irq, void *arg, struct pt_regs *regs);
+static irqreturn_t cuda_interrupt(int irq, void *arg, struct pt_regs *regs);
 static void cuda_input(unsigned char *buf, int nb, struct pt_regs *regs);
 void cuda_poll(void);
 static int cuda_write(struct adb_request *req);
@@ -441,7 +441,7 @@ cuda_poll()
     local_irq_restore(flags);
 }
 
-static void
+static irqreturn_t
 cuda_interrupt(int irq, void *arg, struct pt_regs *regs)
 {
     int status;
@@ -457,7 +457,7 @@ cuda_interrupt(int irq, void *arg, struct pt_regs *regs)
     out_8(&via[IFR], virq);   
     if ((virq & SR_INT) == 0) {
         spin_unlock(&cuda_lock);
-	return;
+	return IRQ_NONE;
     }
     
     status = (~in_8(&via[B]) & (TIP|TREQ)) | (in_8(&via[ACR]) & SR_OUT);
@@ -595,6 +595,7 @@ cuda_interrupt(int irq, void *arg, struct pt_regs *regs)
     }
     if (ibuf_len)
 	cuda_input(ibuf, ibuf_len, regs);
+    return IRQ_HANDLED;
 }
 
 static void

drivers/macintosh/via-pmu.c

@@ -180,8 +180,8 @@ static int pmu_adb_reset_bus(void);
 static int init_pmu(void);
 static int pmu_queue_request(struct adb_request *req);
 static void pmu_start(void);
-static void via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs);
-static void gpio1_interrupt(int irq, void *arg, struct pt_regs *regs);
+static irqreturn_t via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs);
+static irqreturn_t gpio1_interrupt(int irq, void *arg, struct pt_regs *regs);
 static int proc_get_info(char *page, char **start, off_t off,
 			  int count, int *eof, void *data);
 #ifdef CONFIG_PMAC_BACKLIGHT
@@ -1393,7 +1393,7 @@ pmu_sr_intr(struct pt_regs *regs)
 	return NULL;
 }
 
-static void __pmac
+static irqreturn_t __pmac
 via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs)
 {
 	unsigned long flags;
@@ -1401,7 +1401,8 @@ via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs)
 	int nloop = 0;
 	int int_data = -1;
 	struct adb_request *req = NULL;
-	
+	int handled = 0;
+
 	/* This is a bit brutal, we can probably do better */
 	spin_lock_irqsave(&pmu_lock, flags);
 	++disable_poll;
@@ -1410,6 +1411,7 @@ via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs)
 		intr = in_8(&via[IFR]) & (SR_INT | CB1_INT);
 		if (intr == 0)
 			break;
+		handled = 1;
 		if (++nloop > 1000) {
 			printk(KERN_DEBUG "PMU: stuck in intr loop, "
 			       "intr=%x, ier=%x pmu_state=%d\n",
@@ -1473,15 +1475,19 @@ via_pmu_interrupt(int irq, void *arg, struct pt_regs *regs)
 		int_data = -1;
 		goto recheck;
 	}
+
+	return IRQ_RETVAL(handled);
 }
 
-static void __pmac
+static irqreturn_t __pmac
 gpio1_interrupt(int irq, void *arg, struct pt_regs *regs)
 {
 	if ((in_8(gpio_reg + 0x9) & 0x02) == 0) {
 		adb_int_pending = 1;
 		via_pmu_interrupt(0, 0, 0);
+		return IRQ_HANDLED;
 	}
+	return IRQ_NONE;
 }
 
 #ifdef CONFIG_PMAC_BACKLIGHT

include/linux/ide.h

@@ -227,25 +227,6 @@ typedef unsigned char	byte;	/* used everywhere */
 #define PRD_BYTES       8
 #define PRD_ENTRIES     (PAGE_SIZE / (2 * PRD_BYTES))
 
-/*
- * Our Physical Region Descriptor (PRD) table should be large enough
- * to handle the biggest I/O request we are likely to see.  Since requests
- * can have no more than 256 sectors, and since the typical blocksize is
- * two or more sectors, we could get by with a limit of 128 entries here for
- * the usual worst case.  Most requests seem to include some contiguous blocks,
- * further reducing the number of table entries required.
- *
- * The driver reverts to PIO mode for individual requests that exceed
- * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling
- * 100% of all crazy scenarios here is not necessary.
- *
- * As it turns out though, we must allocate a full 4KB page for this,
- * so the two PRD tables (ide0 & ide1) will each get half of that,
- * allowing each to have about 256 entries (8 bytes each) from this.
- */
-#define PRD_BYTES	8
-#define PRD_ENTRIES	(PAGE_SIZE / (2 * PRD_BYTES))
-
 /*
  * Some more useful definitions
  */

net/ipv4/xfrm4_tunnel.c

@@ -174,6 +174,8 @@ static void ipip_err(struct sk_buff *skb, u32 info)
 
 static int ipip_init_state(struct xfrm_state *x, void *args)
 {
+	if (!x->props.mode)
+		return -EINVAL;
 	x->props.header_len = sizeof(struct iphdr);
 
 	return 0;