[libata] export ata_dev_pair; trim trailing whitespace

Mostly, trim trailing whitespace.

Also:
* export ata_dev_pair
* move ata_dev_classify export closer to ata_dev_pair export

drivers/scsi/ata_piix.c

@@ -742,7 +742,7 @@ static int piix_disable_ahci(struct pci_dev *pdev)
 /**
  *	piix_check_450nx_errata	-	Check for problem 450NX setup
  *	@ata_dev: the PCI device to check
- *	
+ *
  *	Check for the present of 450NX errata #19 and errata #25. If
  *	they are found return an error code so we can turn off DMA
  */
@@ -753,7 +753,7 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
 	u16 cfg;
 	u8 rev;
 	int no_piix_dma = 0;
-	
+
 	while((pdev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev)) != NULL)
 	{
 		/* Look for 450NX PXB. Check for problem configurations
@@ -772,7 +772,7 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
 	if(no_piix_dma == 2)
 		dev_printk(KERN_WARNING, &ata_dev->dev, "A BIOS update may resolve this.\n");
 	return no_piix_dma;
-}		
+}
 
 static void __devinit piix_init_sata_map(struct pci_dev *pdev,
 					 struct ata_port_info *pinfo)

drivers/scsi/libata-bmdma.c

@@ -941,7 +941,7 @@ err_out:
  *	@pdev: PCI device
  *
  *	Some PCI ATA devices report simplex mode but in fact can be told to
- *	enter non simplex mode. This implements the neccessary logic to 
+ *	enter non simplex mode. This implements the neccessary logic to
  *	perform the task on such devices. Calling it on other devices will
  *	have -undefined- behaviour.
  */
@@ -966,7 +966,7 @@ unsigned long ata_pci_default_filter(const struct ata_port *ap, struct ata_devic
 {
 	/* Filter out DMA modes if the device has been configured by
 	   the BIOS as PIO only */
-	   
+
 	if (ap->ioaddr.bmdma_addr == 0)
 		xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
 	return xfer_mask;

drivers/scsi/libata-core.c

@@ -190,7 +190,7 @@ static const u8 ata_rw_cmds[] = {
  *	ata_rwcmd_protocol - set taskfile r/w commands and protocol
  *	@qc: command to examine and configure
  *
- *	Examine the device configuration and tf->flags to calculate 
+ *	Examine the device configuration and tf->flags to calculate
  *	the proper read/write commands and protocol to use.
  *
  *	LOCKING:
@@ -203,7 +203,7 @@ int ata_rwcmd_protocol(struct ata_queued_cmd *qc)
 	u8 cmd;
 
 	int index, fua, lba48, write;
- 
+
 	fua = (tf->flags & ATA_TFLAG_FUA) ? 4 : 0;
 	lba48 = (tf->flags & ATA_TFLAG_LBA48) ? 2 : 0;
 	write = (tf->flags & ATA_TFLAG_WRITE) ? 1 : 0;
@@ -1055,7 +1055,7 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev)
 		return 0;
 	if (speed > 2)
 		return 1;
-		
+
 	/* If we have no drive specific rule, then PIO 2 is non IORDY */
 
 	if (adev->id[ATA_ID_FIELD_VALID] & 2) {	/* EIDE */
@@ -1583,7 +1583,7 @@ void sata_phy_reset(struct ata_port *ap)
  *	Obtain the other device on the same cable, or if none is
  *	present NULL is returned
  */
- 
+
 struct ata_device *ata_dev_pair(struct ata_port *ap, struct ata_device *adev)
 {
 	struct ata_device *pair = &ap->device[1 - adev->devno];
@@ -1620,7 +1620,7 @@ void ata_port_disable(struct ata_port *ap)
  * PIO 0-5, MWDMA 0-2 and UDMA 0-6 timings (in nanoseconds).
  * These were taken from ATA/ATAPI-6 standard, rev 0a, except
  * for PIO 5, which is a nonstandard extension and UDMA6, which
- * is currently supported only by Maxtor drives. 
+ * is currently supported only by Maxtor drives.
  */
 
 static const struct ata_timing ata_timing[] = {
@@ -1635,11 +1635,11 @@ static const struct ata_timing ata_timing[] = {
 	{ XFER_UDMA_0,     0,   0,   0,   0,   0,   0,   0, 120 },
 
 /*	{ XFER_UDMA_SLOW,  0,   0,   0,   0,   0,   0,   0, 150 }, */
-                                          
+
 	{ XFER_MW_DMA_2,  25,   0,   0,   0,  70,  25, 120,   0 },
 	{ XFER_MW_DMA_1,  45,   0,   0,   0,  80,  50, 150,   0 },
 	{ XFER_MW_DMA_0,  60,   0,   0,   0, 215, 215, 480,   0 },
-                                          
+
 	{ XFER_SW_DMA_2,  60,   0,   0,   0, 120, 120, 240,   0 },
 	{ XFER_SW_DMA_1,  90,   0,   0,   0, 240, 240, 480,   0 },
 	{ XFER_SW_DMA_0, 120,   0,   0,   0, 480, 480, 960,   0 },
@@ -1692,7 +1692,7 @@ static const struct ata_timing* ata_timing_find_mode(unsigned short speed)
 	for (t = ata_timing; t->mode != speed; t++)
 		if (t->mode == 0xFF)
 			return NULL;
-	return t; 
+	return t;
 }
 
 int ata_timing_compute(struct ata_device *adev, unsigned short speed,
@@ -1702,7 +1702,7 @@ int ata_timing_compute(struct ata_device *adev, unsigned short speed,
 	struct ata_timing p;
 
 	/*
-	 * Find the mode. 
+	 * Find the mode.
 	 */
 
 	if (!(s = ata_timing_find_mode(speed)))
@@ -2078,11 +2078,11 @@ static unsigned int ata_bus_softreset(struct ata_port *ap,
 	 */
 	msleep(150);
 
-	
-	/* Before we perform post reset processing we want to see if 
+
+	/* Before we perform post reset processing we want to see if
 	   the bus shows 0xFF because the odd clown forgets the D7 pulldown
 	   resistor */
-	
+
 	if (ata_check_status(ap) == 0xFF)
 		return 1;	/* Positive is failure for some reason */
 
@@ -2651,22 +2651,22 @@ static const char * const ata_dma_blacklist [] = {
 	"SanDisk SDP3B-64", NULL,
 	"SANYO CD-ROM CRD", NULL,
 	"HITACHI CDR-8", NULL,
-	"HITACHI CDR-8335", NULL, 
+	"HITACHI CDR-8335", NULL,
 	"HITACHI CDR-8435", NULL,
-	"Toshiba CD-ROM XM-6202B", NULL, 
-	"TOSHIBA CD-ROM XM-1702BC", NULL, 
-	"CD-532E-A", NULL, 
-	"E-IDE CD-ROM CR-840", NULL, 
-	"CD-ROM Drive/F5A", NULL, 
-	"WPI CDD-820", NULL, 
+	"Toshiba CD-ROM XM-6202B", NULL,
+	"TOSHIBA CD-ROM XM-1702BC", NULL,
+	"CD-532E-A", NULL,
+	"E-IDE CD-ROM CR-840", NULL,
+	"CD-ROM Drive/F5A", NULL,
+	"WPI CDD-820", NULL,
 	"SAMSUNG CD-ROM SC-148C", NULL,
-	"SAMSUNG CD-ROM SC", NULL, 
+	"SAMSUNG CD-ROM SC", NULL,
 	"SanDisk SDP3B-64", NULL,
 	"ATAPI CD-ROM DRIVE 40X MAXIMUM",NULL,
 	"_NEC DV5800A", NULL,
 	"SAMSUNG CD-ROM SN-124", "N001"
 };
- 
+
 static int ata_strim(char *s, size_t len)
 {
 	len = strnlen(s, len);
@@ -3697,7 +3697,7 @@ static void ata_pio_error(struct ata_port *ap)
 	if (qc->tf.command != ATA_CMD_PACKET)
 		printk(KERN_WARNING "ata%u: PIO error\n", ap->id);
 
-	/* make sure qc->err_mask is available to 
+	/* make sure qc->err_mask is available to
 	 * know what's wrong and recover
 	 */
 	WARN_ON(qc->err_mask == 0);
@@ -4695,7 +4695,7 @@ err_free_ret:
  *	ata_host_set_remove - PCI layer callback for device removal
  *	@host_set: ATA host set that was removed
  *
- *	Unregister all objects associated with this host set. Free those 
+ *	Unregister all objects associated with this host set. Free those
  *	objects.
  *
  *	LOCKING:
@@ -4967,6 +4967,8 @@ EXPORT_SYMBOL_GPL(ata_std_postreset);
 EXPORT_SYMBOL_GPL(ata_std_probe_reset);
 EXPORT_SYMBOL_GPL(ata_drive_probe_reset);
 EXPORT_SYMBOL_GPL(ata_dev_revalidate);
+EXPORT_SYMBOL_GPL(ata_dev_classify);
+EXPORT_SYMBOL_GPL(ata_dev_pair);
 EXPORT_SYMBOL_GPL(ata_port_disable);
 EXPORT_SYMBOL_GPL(ata_ratelimit);
 EXPORT_SYMBOL_GPL(ata_busy_sleep);
@@ -4977,7 +4979,6 @@ EXPORT_SYMBOL_GPL(ata_scsi_error);
 EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
 EXPORT_SYMBOL_GPL(ata_scsi_release);
 EXPORT_SYMBOL_GPL(ata_host_intr);
-EXPORT_SYMBOL_GPL(ata_dev_classify);
 EXPORT_SYMBOL_GPL(ata_id_string);
 EXPORT_SYMBOL_GPL(ata_id_c_string);
 EXPORT_SYMBOL_GPL(ata_scsi_simulate);

drivers/scsi/libata-scsi.c

@@ -256,7 +256,7 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg)
 	scsi_cmd[14] = args[0];
 
 	/* Good values for timeout and retries?  Values below
-	   from scsi_ioctl_send_command() for default case... */	
+	   from scsi_ioctl_send_command() for default case... */
 	if (scsi_execute_req(scsidev, scsi_cmd, DMA_NONE, NULL, 0, &sshdr,
 			     (10*HZ), 5))
 		rc = -EIO;
@@ -438,7 +438,7 @@ int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state)
  *	LOCKING:
  *	spin_lock_irqsave(host_set lock)
  */
-void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, 
+void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
 			u8 *ascq)
 {
 	int i;
@@ -495,7 +495,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
 		/* Look for drv_err */
 		for (i = 0; sense_table[i][0] != 0xFF; i++) {
 			/* Look for best matches first */
-			if ((sense_table[i][0] & drv_err) == 
+			if ((sense_table[i][0] & drv_err) ==
 			    sense_table[i][0]) {
 				*sk = sense_table[i][1];
 				*asc = sense_table[i][2];
@@ -518,7 +518,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
 		}
 	}
 	/* No error?  Undecoded? */
-	printk(KERN_WARNING "ata%u: no sense translation for status: 0x%02x\n", 
+	printk(KERN_WARNING "ata%u: no sense translation for status: 0x%02x\n",
 	       id, drv_stat);
 
 	/* We need a sensible error return here, which is tricky, and one
@@ -1150,14 +1150,14 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, const u8 *sc
 
 		DPRINTK("block %u track %u cyl %u head %u sect %u\n",
 			(u32)block, track, cyl, head, sect);
-		
-		/* Check whether the converted CHS can fit. 
-		   Cylinder: 0-65535 
+
+		/* Check whether the converted CHS can fit.
+		   Cylinder: 0-65535
 		   Head: 0-15
 		   Sector: 1-255*/
-		if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect)) 
+		if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
 			goto out_of_range;
-		
+
 		tf->command = ATA_CMD_VERIFY;
 		tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */
 		tf->lbal = sect;
@@ -1289,7 +1289,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
 		tf->lbal = block & 0xff;
 
 		tf->device |= ATA_LBA;
-	} else { 
+	} else {
 		/* CHS */
 		u32 sect, head, cyl, track;
 
@@ -1309,8 +1309,8 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
 		DPRINTK("block %u track %u cyl %u head %u sect %u\n",
 			(u32)block, track, cyl, head, sect);
 
-		/* Check whether the converted CHS can fit. 
-		   Cylinder: 0-65535 
+		/* Check whether the converted CHS can fit.
+		   Cylinder: 0-65535
 		   Head: 0-15
 		   Sector: 1-255*/
 		if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
@@ -1697,7 +1697,7 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
 
 	if (buflen > (ATA_SERNO_LEN + num + 3)) {
 		/* piv=0, assoc=lu, code_set=ACSII, designator=vendor */
-		rbuf[num + 0] = 2;	
+		rbuf[num + 0] = 2;
 		rbuf[num + 3] = ATA_SERNO_LEN;
 		num += 4;
 		ata_id_string(args->id, (unsigned char *) rbuf + num,
@@ -1707,8 +1707,8 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
 	if (buflen > (sat_model_serial_desc_len + num + 3)) {
 		/* SAT defined lu model and serial numbers descriptor */
 		/* piv=0, assoc=lu, code_set=ACSII, designator=t10 vendor id */
-		rbuf[num + 0] = 2;	
-		rbuf[num + 1] = 1;	
+		rbuf[num + 0] = 2;
+		rbuf[num + 1] = 1;
 		rbuf[num + 3] = sat_model_serial_desc_len;
 		num += 4;
 		memcpy(rbuf + num, "ATA     ", 8);

drivers/scsi/sata_sil24.c

@@ -342,7 +342,7 @@ static struct ata_port_info sil24_port_info[] = {
 		.udma_mask	= 0x3f,			/* udma0-5 */
 		.port_ops	= &sil24_ops,
 	},
-	/* sil_3132 */ 
+	/* sil_3132 */
 	{
 		.sht		= &sil24_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |

drivers/scsi/sata_vsc.c

@@ -230,11 +230,11 @@ static irqreturn_t vsc_sata_interrupt (int irq, void *dev_instance,
 					handled += ata_host_intr(ap, qc);
 				} else if (is_vsc_sata_int_err(i, int_status)) {
 					/*
-					 * On some chips (i.e. Intel 31244), an error 
+					 * On some chips (i.e. Intel 31244), an error
 					 * interrupt will sneak in at initialization
 					 * time (phy state changes).  Clearing the SCR
 					 * error register is not required, but it prevents
-					 * the phy state change interrupts from recurring 
+					 * the phy state change interrupts from recurring
 					 * later.
 					 */
 					u32 err_status;