Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits)
  [S390] remove duplicated #includes
  [S390] cpumask: use mm_cpumask() wrapper
  [S390] cpumask: Use accessors code.
  [S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
  [S390] cpumask: remove cpu_coregroup_map
  [S390] fix clock comparator save area usage
  [S390] Add hwcap flag for the etf3 enhancement facility
  [S390] Ensure that ipl panic notifier is called late.
  [S390] fix dfp elf hwcap/facility bit detection
  [S390] smp: perform initial cpu reset before starting a cpu
  [S390] smp: fix memory leak on __cpu_up
  [S390] ipl: Improve checking logic and remove switch defaults.
  [S390] s390dbf: Remove needless check for NULL pointer.
  [S390] s390dbf: Remove redundant initilizations.
  [S390] use kzfree()
  [S390] BUG to BUG_ON changes
  [S390] zfcpdump: Prevent zcore from beeing built as a kernel module.
  [S390] Use csum_partial in checksum.h
  [S390] cleanup lowcore.h
  [S390] eliminate ipl_device from lowcore
  ...

1 files changed, 70 insertions, 91 deletions

diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c
index 22ca34361ed..807ded5eb04 100644
--- a/drivers/s390/char/tape_34xx.c
+++ b/drivers/s390/char/tape_34xx.c
@@ -8,6 +8,8 @@
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "tape"
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/bio.h>
@@ -18,8 +20,6 @@
 #include "tape.h"
 #include "tape_std.h"
 
-#define PRINTK_HEADER "TAPE_34XX: "
-
 /*
  * Pointer to debug area.
  */
@@ -203,8 +203,7 @@ tape_34xx_unsolicited_irq(struct tape_device *device, struct irb *irb)
 		tape_34xx_schedule_work(device, TO_MSEN);
 	} else {
 		DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
-		PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
-		tape_dump_sense(device, NULL, irb);
+		tape_dump_sense_dbf(device, NULL, irb);
 	}
 	return TAPE_IO_SUCCESS;
 }
@@ -226,9 +225,7 @@ tape_34xx_erp_read_opposite(struct tape_device *device,
 		tape_std_read_backward(device, request);
 		return tape_34xx_erp_retry(request);
 	}
-	if (request->op != TO_RBA)
-		PRINT_ERR("read_opposite called with state:%s\n",
-			  tape_op_verbose[request->op]);
+
 	/*
 	 * We tried to read forward and backward, but hat no
 	 * success -> failed.
@@ -241,13 +238,9 @@ tape_34xx_erp_bug(struct tape_device *device, struct tape_request *request,
 		  struct irb *irb, int no)
 {
 	if (request->op != TO_ASSIGN) {
-		PRINT_WARN("An unexpected condition #%d was caught in "
-			   "tape error recovery.\n", no);
-		PRINT_WARN("Please report this incident.\n");
-		if (request)
-			PRINT_WARN("Operation of tape:%s\n",
-				   tape_op_verbose[request->op]);
-		tape_dump_sense(device, request, irb);
+		dev_err(&device->cdev->dev, "An unexpected condition %d "
+			"occurred in tape error recovery\n", no);
+		tape_dump_sense_dbf(device, request, irb);
 	}
 	return tape_34xx_erp_failed(request, -EIO);
 }
@@ -261,9 +254,8 @@ tape_34xx_erp_overrun(struct tape_device *device, struct tape_request *request,
 		      struct irb *irb)
 {
 	if (irb->ecw[3] == 0x40) {
-		PRINT_WARN ("Data overrun error between control-unit "
-			    "and drive. Use a faster channel connection, "
-			    "if possible! \n");
+		dev_warn (&device->cdev->dev, "A data overrun occurred between"
+			" the control unit and tape unit\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	}
 	return tape_34xx_erp_bug(device, request, irb, -1);
@@ -280,7 +272,8 @@ tape_34xx_erp_sequence(struct tape_device *device,
 		/*
 		 * cu detected incorrect block-id sequence on tape.
 		 */
-		PRINT_WARN("Illegal block-id sequence found!\n");
+		dev_warn (&device->cdev->dev, "The block ID sequence on the "
+			"tape is incorrect\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	}
 	/*
@@ -393,8 +386,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 			/* Writing at physical end of volume */
 			return tape_34xx_erp_failed(request, -ENOSPC);
 		default:
-			PRINT_ERR("Invalid op in %s:%i\n",
-				  __func__, __LINE__);
 			return tape_34xx_erp_failed(request, 0);
 		}
 	}
@@ -420,7 +411,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 							 irb, -4);
 
 			/* data check is permanent, CU recovery has failed */
-			PRINT_WARN("Permanent read error\n");
+			dev_warn (&device->cdev->dev, "A read error occurred "
+				"that cannot be recovered\n");
 			return tape_34xx_erp_failed(request, -EIO);
 		case 0x25:
 			// a write data check occurred
@@ -433,22 +425,26 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 							 irb, -5);
 
 			// data check is permanent, cu-recovery has failed
-			PRINT_WARN("Permanent write error\n");
+			dev_warn (&device->cdev->dev, "A write error on the "
+				"tape cannot be recovered\n");
 			return tape_34xx_erp_failed(request, -EIO);
 		case 0x26:
 			/* Data Check (read opposite) occurred. */
 			return tape_34xx_erp_read_opposite(device, request);
 		case 0x28:
 			/* ID-Mark at tape start couldn't be written */
-			PRINT_WARN("ID-Mark could not be written.\n");
+			dev_warn (&device->cdev->dev, "Writing the ID-mark "
+				"failed\n");
 			return tape_34xx_erp_failed(request, -EIO);
 		case 0x31:
 			/* Tape void. Tried to read beyond end of device. */
-			PRINT_WARN("Read beyond end of recorded area.\n");
+			dev_warn (&device->cdev->dev, "Reading the tape beyond"
+				" the end of the recorded area failed\n");
 			return tape_34xx_erp_failed(request, -ENOSPC);
 		case 0x41:
 			/* Record sequence error. */
-			PRINT_WARN("Invalid block-id sequence found.\n");
+			dev_warn (&device->cdev->dev, "The tape contains an "
+				"incorrect block ID sequence\n");
 			return tape_34xx_erp_failed(request, -EIO);
 		default:
 			/* all data checks for 3480 should result in one of
@@ -470,16 +466,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 	switch (sense[3]) {
 	case 0x00:
 		/* Unit check with erpa code 0. Report and ignore. */
-		PRINT_WARN("Non-error sense was found. "
-			   "Unit-check will be ignored.\n");
 		return TAPE_IO_SUCCESS;
 	case 0x21:
 		/*
 		 * Data streaming not operational. CU will switch to
 		 * interlock mode. Reissue the command.
 		 */
-		PRINT_WARN("Data streaming not operational. "
-			   "Switching to interlock-mode.\n");
 		return tape_34xx_erp_retry(request);
 	case 0x22:
 		/*
@@ -487,11 +479,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * error on the lower interface, internal path not usable,
 		 * or error during cartridge load.
 		 */
-		PRINT_WARN("A path equipment check occurred. One of the "
-			   "following conditions occurred:\n");
-		PRINT_WARN("drive adapter error, buffer error on the lower "
-			   "interface, internal path not usable, error "
-			   "during cartridge load.\n");
+		dev_warn (&device->cdev->dev, "A path equipment check occurred"
+			" for the tape device\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x24:
 		/*
@@ -514,7 +503,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * but the hardware isn't capable to do idrc, or a perform
 		 * subsystem func is issued and the CU is not on-line.
 		 */
-		PRINT_WARN ("Function incompatible. Try to switch off idrc\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x2a:
 		/*
@@ -552,23 +540,26 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * reading the format id mark or that that format specified
 		 * is not supported by the drive.
 		 */
-		PRINT_WARN("Drive not capable processing the tape format!\n");
+		dev_warn (&device->cdev->dev, "The tape unit cannot process "
+			"the tape format\n");
 		return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
 	case 0x30:
 		/* The medium is write protected. */
-		PRINT_WARN("Medium is write protected!\n");
+		dev_warn (&device->cdev->dev, "The tape medium is write-"
+			"protected\n");
 		return tape_34xx_erp_failed(request, -EACCES);
 	case 0x32:
 		// Tension loss. We cannot recover this, it's an I/O error.
-		PRINT_WARN("The drive lost tape tension.\n");
+		dev_warn (&device->cdev->dev, "The tape does not have the "
+			"required tape tension\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x33:
 		/*
 		 * Load Failure. The cartridge was not inserted correctly or
 		 * the tape is not threaded correctly.
 		 */
-		PRINT_WARN("Cartridge load failure. Reload the cartridge "
-			   "and try again.\n");
+		dev_warn (&device->cdev->dev, "The tape unit failed to load"
+			" the cartridge\n");
 		tape_34xx_delete_sbid_from(device, 0);
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x34:
@@ -576,8 +567,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * Unload failure. The drive cannot maintain tape tension
 		 * and control tape movement during an unload operation.
 		 */
-		PRINT_WARN("Failure during cartridge unload. "
-			   "Please try manually.\n");
+		dev_warn (&device->cdev->dev, "Automatic unloading of the tape"
+			" cartridge failed\n");
 		if (request->op == TO_RUN)
 			return tape_34xx_erp_failed(request, -EIO);
 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
@@ -589,8 +580,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * - the cartridge loader does not respond correctly
 		 * - a failure occurs during an index, load, or unload cycle
 		 */
-		PRINT_WARN("Equipment check! Please check the drive and "
-			   "the cartridge loader.\n");
+		dev_warn (&device->cdev->dev, "An equipment check has occurred"
+			" on the tape unit\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x36:
 		if (device->cdev->id.driver_info == tape_3490)
@@ -603,7 +594,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * Tape length error. The tape is shorter than reported in
 		 * the beginning-of-tape data.
 		 */
-		PRINT_WARN("Tape length error.\n");
+		dev_warn (&device->cdev->dev, "The tape information states an"
+			" incorrect length\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x38:
 		/*
@@ -620,12 +612,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x3a:
 		/* Drive switched to not ready. */
-		PRINT_WARN("Drive not ready. Turn the ready/not ready switch "
-			   "to ready position and try again.\n");
+		dev_warn (&device->cdev->dev, "The tape unit is not ready\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x3b:
 		/* Manual rewind or unload. This causes an I/O error. */
-		PRINT_WARN("Medium was rewound or unloaded manually.\n");
+		dev_warn (&device->cdev->dev, "The tape medium has been "
+			"rewound or unloaded manually\n");
 		tape_34xx_delete_sbid_from(device, 0);
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x42:
@@ -633,7 +625,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * Degraded mode. A condition that can cause degraded
 		 * performance is detected.
 		 */
-		PRINT_WARN("Subsystem is running in degraded mode.\n");
+		dev_warn (&device->cdev->dev, "The tape subsystem is running "
+			"in degraded mode\n");
 		return tape_34xx_erp_retry(request);
 	case 0x43:
 		/* Drive not ready. */
@@ -652,7 +645,6 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 					break;
 			}
 		}
-		PRINT_WARN("The drive is not ready.\n");
 		return tape_34xx_erp_failed(request, -ENOMEDIUM);
 	case 0x44:
 		/* Locate Block unsuccessful. */
@@ -663,7 +655,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x45:
 		/* The drive is assigned to a different channel path. */
-		PRINT_WARN("The drive is assigned elsewhere.\n");
+		dev_warn (&device->cdev->dev, "The tape unit is already "
+			"assigned\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x46:
 		/*
@@ -671,11 +664,12 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * the power supply may be switched off or
 		 * the drive address may not be set correctly.
 		 */
-		PRINT_WARN("The drive is not on-line.");
+		dev_warn (&device->cdev->dev, "The tape unit is not online\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x47:
 		/* Volume fenced. CU reports volume integrity is lost. */
-		PRINT_WARN("Volume fenced. The volume integrity is lost.\n");
+		dev_warn (&device->cdev->dev, "The control unit has fenced "
+			"access to the tape volume\n");
 		tape_34xx_delete_sbid_from(device, 0);
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x48:
@@ -683,20 +677,21 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		return tape_34xx_erp_retry(request);
 	case 0x49:
 		/* Bus out check. A parity check error on the bus was found. */
-		PRINT_WARN("Bus out check. A data transfer over the bus "
-			   "has been corrupted.\n");
+		dev_warn (&device->cdev->dev, "A parity error occurred on the "
+			"tape bus\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x4a:
 		/* Control unit erp failed. */
-		PRINT_WARN("The control unit I/O error recovery failed.\n");
+		dev_warn (&device->cdev->dev, "I/O error recovery failed on "
+			"the tape control unit\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x4b:
 		/*
 		 * CU and drive incompatible. The drive requests micro-program
 		 * patches, which are not available on the CU.
 		 */
-		PRINT_WARN("The drive needs microprogram patches from the "
-			   "control unit, which are not available.\n");
+		dev_warn (&device->cdev->dev, "The tape unit requires a "
+			"firmware update\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x4c:
 		/*
@@ -721,8 +716,8 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 			 * the block to be written is larger than allowed for
 			 * buffered mode.
 			 */
-			PRINT_WARN("Maximum block size for buffered "
-				   "mode exceeded.\n");
+			dev_warn (&device->cdev->dev, "The maximum block size"
+				" for buffered mode is exceeded\n");
 			return tape_34xx_erp_failed(request, -ENOBUFS);
 		}
 		/* This erpa is reserved for 3480. */
@@ -759,22 +754,20 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		return tape_34xx_erp_retry(request);
 	case 0x55:
 		/* Channel interface recovery (permanent). */
-		PRINT_WARN("A permanent channel interface error occurred.\n");
+		dev_warn (&device->cdev->dev, "A channel interface error cannot be"
+			" recovered\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x56:
 		/* Channel protocol error. */
-		PRINT_WARN("A channel protocol error occurred.\n");
+		dev_warn (&device->cdev->dev, "A channel protocol error "
+			"occurred\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x57:
 		if (device->cdev->id.driver_info == tape_3480) {
 			/* Attention intercept. */
-			PRINT_WARN("An attention intercept occurred, "
-				   "which will be recovered.\n");
 			return tape_34xx_erp_retry(request);
 		} else {
 			/* Global status intercept. */
-			PRINT_WARN("An global status intercept was received, "
-				   "which will be recovered.\n");
 			return tape_34xx_erp_retry(request);
 		}
 	case 0x5a:
@@ -782,42 +775,31 @@ tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
 		 * Tape length incompatible. The tape inserted is too long,
 		 * which could cause damage to the tape or the drive.
 		 */
-		PRINT_WARN("Tape Length Incompatible\n");
-		PRINT_WARN("Tape length exceeds IBM enhanced capacity "
-			"cartdridge length or a medium\n");
-		PRINT_WARN("with EC-CST identification mark has been mounted "
-			"in a device that writes\n");
-		PRINT_WARN("3480 or 3480 XF format.\n");
+		dev_warn (&device->cdev->dev, "The tape unit does not support "
+			"the tape length\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x5b:
 		/* Format 3480 XF incompatible */
 		if (sense[1] & SENSE_BEGINNING_OF_TAPE)
 			/* The tape will get overwritten. */
 			return tape_34xx_erp_retry(request);
-		PRINT_WARN("Format 3480 XF Incompatible\n");
-		PRINT_WARN("Medium has been created in 3480 format. "
-			"To change the format writes\n");
-		PRINT_WARN("must be issued at BOT.\n");
+		dev_warn (&device->cdev->dev, "The tape unit does not support"
+			" format 3480 XF\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x5c:
 		/* Format 3480-2 XF incompatible */
-		PRINT_WARN("Format 3480-2 XF Incompatible\n");
-		PRINT_WARN("Device can only read 3480 or 3480 XF format.\n");
+		dev_warn (&device->cdev->dev, "The tape unit does not support tape "
+			"format 3480-2 XF\n");
 		return tape_34xx_erp_failed(request, -EIO);
 	case 0x5d:
 		/* Tape length violation. */
-		PRINT_WARN("Tape Length Violation\n");
-		PRINT_WARN("The mounted tape exceeds IBM Enhanced Capacity "
-			"Cartdridge System Tape length.\n");
-		PRINT_WARN("This may cause damage to the drive or tape when "
-			"processing to the EOV\n");
+		dev_warn (&device->cdev->dev, "The tape unit does not support"
+			" the current tape length\n");
 		return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
 	case 0x5e:
 		/* Compaction algorithm incompatible. */
-		PRINT_WARN("Compaction Algorithm Incompatible\n");
-		PRINT_WARN("The volume is recorded using an incompatible "
-			"compaction algorithm,\n");
-		PRINT_WARN("which is not supported by the device.\n");
+		dev_warn (&device->cdev->dev, "The tape unit does not support"
+			" the compaction algorithm\n");
 		return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
 
 		/* The following erpas should have been covered earlier. */
@@ -848,7 +830,6 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request,
 	    (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) &&
 	    (request->op == TO_WRI)) {
 		/* Write at end of volume */
-		PRINT_INFO("End of volume\n"); /* XXX */
 		return tape_34xx_erp_failed(request, -ENOSPC);
 	}
 
@@ -869,9 +850,7 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request,
 	}
 
 	DBF_EVENT(6, "xunknownirq\n");
-	PRINT_ERR("Unexpected interrupt.\n");
-	PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]);
-	tape_dump_sense(device, request, irb);
+	tape_dump_sense_dbf(device, request, irb);
 	return TAPE_IO_STOP;
 }