From e8a96aa71355edef9f40ce01459acf25c50cb78c Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 15 Jul 2008 21:21:41 +0200
Subject: ide: set REQ_PREEMPT request flag in ide_do_drive_cmd() users

* Set REQ_PREEMPT request flag in ide_do_drive_cmd() users
  for ide_preempt and ide_head_wait action types.

* Remove setting REQ_PREEMPT from ide_do_drive_cmd().

While at it:

* Set 'where' variable outside ide_lock.

This is a preparation for converting IDE to use blk_execute_rq().

There should be no functional changes caused by this patch.

Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 300431d080a..c9a05721360 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -606,6 +606,7 @@ static int generic_ide_resume(struct device *dev)
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
 	rq.cmd_type = REQ_TYPE_PM_RESUME;
+	rq.cmd_flags |= REQ_PREEMPT;
 	rq.special = &args;
 	rq.data = &rqpm;
 	rqpm.pm_step = ide_pm_state_start_resume;
-- 
cgit v1.2.3-70-g09d2


From 5b114715ed63f3a4fdf790f5df61364fc4adadf1 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Tue, 15 Jul 2008 21:21:44 +0200
Subject: ide: convert ide_do_drive_cmd path to use blk_execute_rq

This converts the ide_do_drive_cmd path using ide_[head_]wait to use
blk_execute_rq.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide.c | 39 ++++++++++++++++++++++-----------------
 1 file changed, 22 insertions(+), 17 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index c9a05721360..8823df1b871 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -498,7 +498,7 @@ out:
 
 int set_pio_mode(ide_drive_t *drive, int arg)
 {
-	struct request rq;
+	struct request *rq;
 	ide_hwif_t *hwif = drive->hwif;
 	const struct ide_port_ops *port_ops = hwif->port_ops;
 
@@ -512,12 +512,15 @@ int set_pio_mode(ide_drive_t *drive, int arg)
 	if (drive->special.b.set_tune)
 		return -EBUSY;
 
-	ide_init_drive_cmd(&rq);
-	rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
+	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+	rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
 
 	drive->tune_req = (u8) arg;
 	drive->special.b.set_tune = 1;
-	(void) ide_do_drive_cmd(drive, &rq, ide_wait);
+
+	blk_execute_rq(drive->queue, NULL, rq, 0);
+	blk_put_request(rq);
+
 	return 0;
 }
 
@@ -555,7 +558,7 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
 	ide_drive_t *drive = dev->driver_data;
 	ide_hwif_t *hwif = HWIF(drive);
-	struct request rq;
+	struct request *rq;
 	struct request_pm_state rqpm;
 	ide_task_t args;
 	int ret;
@@ -564,18 +567,19 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 	if (!(drive->dn % 2))
 		ide_acpi_get_timing(hwif);
 
-	blk_rq_init(NULL, &rq);
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
-	rq.cmd_type = REQ_TYPE_PM_SUSPEND;
-	rq.special = &args;
-	rq.data = &rqpm;
+	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+	rq->cmd_type = REQ_TYPE_PM_SUSPEND;
+	rq->special = &args;
+	rq->data = &rqpm;
 	rqpm.pm_step = ide_pm_state_start_suspend;
 	if (mesg.event == PM_EVENT_PRETHAW)
 		mesg.event = PM_EVENT_FREEZE;
 	rqpm.pm_state = mesg.event;
 
-	ret = ide_do_drive_cmd(drive, &rq, ide_wait);
+	ret = blk_execute_rq(drive->queue, NULL, rq, 0);
+	blk_put_request(rq);
 	/* only call ACPI _PS3 after both drivers are suspended */
 	if (!ret && (((drive->dn % 2) && hwif->drives[0].present
 		 && hwif->drives[1].present)
@@ -589,7 +593,7 @@ static int generic_ide_resume(struct device *dev)
 {
 	ide_drive_t *drive = dev->driver_data;
 	ide_hwif_t *hwif = HWIF(drive);
-	struct request rq;
+	struct request *rq;
 	struct request_pm_state rqpm;
 	ide_task_t args;
 	int err;
@@ -602,17 +606,18 @@ static int generic_ide_resume(struct device *dev)
 
 	ide_acpi_exec_tfs(drive);
 
-	blk_rq_init(NULL, &rq);
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
-	rq.cmd_type = REQ_TYPE_PM_RESUME;
-	rq.cmd_flags |= REQ_PREEMPT;
-	rq.special = &args;
-	rq.data = &rqpm;
+	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+	rq->cmd_type = REQ_TYPE_PM_RESUME;
+	rq->cmd_flags |= REQ_PREEMPT;
+	rq->special = &args;
+	rq->data = &rqpm;
 	rqpm.pm_step = ide_pm_state_start_resume;
 	rqpm.pm_state = PM_EVENT_ON;
 
-	err = ide_do_drive_cmd(drive, &rq, ide_head_wait);
+	err = blk_execute_rq(drive->queue, NULL, rq, 1);
+	blk_put_request(rq);
 
 	if (err == 0 && dev->driver) {
 		ide_driver_t *drv = to_ide_driver(dev->driver);
-- 
cgit v1.2.3-70-g09d2


From 30e5ee4d1a651a0c66e86c6612c003034bd20ba2 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 15 Jul 2008 21:21:46 +0200
Subject: ide: remove obsoleted "idebus=" kernel parameter

* Remove obsoleted "idebus=" kernel parameter.

* Remove no longer needed ide_system_bus_speed() and system_bus_clock()
  (together with idebus_parameter and system_bus_speed variables).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide.c            | 71 +-------------------------------------------
 drivers/ide/legacy/ali14xx.c |  2 +-
 drivers/ide/legacy/ht6560b.c |  2 +-
 drivers/ide/legacy/qd65xx.c  |  4 +--
 drivers/ide/pci/aec62xx.c    |  2 +-
 drivers/ide/pci/alim15x3.c   |  2 +-
 drivers/ide/pci/amd74xx.c    |  2 +-
 drivers/ide/pci/cmd640.c     |  8 ++---
 drivers/ide/pci/cmd64x.c     |  4 +--
 drivers/ide/pci/cy82c693.c   |  2 +-
 drivers/ide/pci/via82cxxx.c  |  2 +-
 include/linux/ide.h          |  2 --
 12 files changed, 15 insertions(+), 88 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 8823df1b871..f65be738b16 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -86,9 +86,6 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
 					IDE6_MAJOR, IDE7_MAJOR,
 					IDE8_MAJOR, IDE9_MAJOR };
 
-static int idebus_parameter;	/* holds the "idebus=" parameter */
-static int system_bus_speed;	/* holds what we think is VESA/PCI bus speed */
-
 DEFINE_MUTEX(ide_cfg_mtx);
  __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 
@@ -189,38 +186,6 @@ static void __init init_ide_data (void)
 	}
 }
 
-/**
- *	ide_system_bus_speed	-	guess bus speed
- *
- *	ide_system_bus_speed() returns what we think is the system VESA/PCI
- *	bus speed (in MHz). This is used for calculating interface PIO timings.
- *	The default is 40 for known PCI systems, 50 otherwise.
- *	The "idebus=xx" parameter can be used to override this value.
- *	The actual value to be used is computed/displayed the first time
- *	through. Drivers should only use this as a last resort.
- *
- *	Returns a guessed speed in MHz.
- */
-
-static int ide_system_bus_speed(void)
-{
-#ifdef CONFIG_PCI
-	static struct pci_device_id pci_default[] = {
-		{ PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) },
-		{ }
-	};
-#else
-#define pci_default 0
-#endif /* CONFIG_PCI */
-
-	/* user supplied value */
-	if (idebus_parameter)
-		return idebus_parameter;
-
-	/* safe default value for PCI or VESA and PCI*/
-	return pci_dev_present(pci_default) ? 33 : 50;
-}
-
 void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
 {
 	ide_hwgroup_t *hwgroup = hwif->hwgroup;
@@ -540,20 +505,6 @@ static int set_unmaskirq(ide_drive_t *drive, int arg)
 	return 0;
 }
 
-/**
- *	system_bus_clock	-	clock guess
- *
- *	External version of the bus clock guess used by very old IDE drivers
- *	for things like VLB timings. Should not be used.
- */
-
-int system_bus_clock (void)
-{
-	return system_bus_speed;
-}
-
-EXPORT_SYMBOL(system_bus_clock);
-
 static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
 	ide_drive_t *drive = dev->driver_data;
@@ -851,7 +802,7 @@ static int __init ide_setup(char *s)
 	if (strncmp(s,"hd",2) == 0 && s[2] == '=')	/* hd= is for hd.c   */
 		return 0;				/* driver and not us */
 
-	if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2))
+	if (strncmp(s, "ide", 3) && strncmp(s, "hd", 2))
 		return 0;
 
 	printk(KERN_INFO "ide_setup: %s", s);
@@ -951,21 +902,6 @@ static int __init ide_setup(char *s)
 		}
 	}
 
-	if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e')
-		goto bad_option;
-	/*
-	 * Look for bus speed option:  "idebus="
-	 */
-	if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') {
-		if (match_parm(&s[6], NULL, vals, 1) != 1)
-			goto bad_option;
-		if (vals[0] >= 20 && vals[0] <= 66) {
-			idebus_parameter = vals[0];
-		} else
-			printk(" -- BAD BUS SPEED! Expected value from 20 to 66");
-		goto obsolete_option;
-	}
-
 bad_option:
 	printk(" -- BAD OPTION\n");
 	return 1;
@@ -1287,11 +1223,6 @@ static int __init ide_init(void)
 	int ret;
 
 	printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n");
-	system_bus_speed = ide_system_bus_speed();
-
-	printk(KERN_INFO "ide: Assuming %dMHz system bus speed "
-			 "for PIO modes%s\n", system_bus_speed,
-			idebus_parameter ? "" : "; override with idebus=xx");
 
 	ret = bus_register(&ide_bus_type);
 	if (ret < 0) {
diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c
index 90c65cf9744..052125fafcf 100644
--- a/drivers/ide/legacy/ali14xx.c
+++ b/drivers/ide/legacy/ali14xx.c
@@ -116,7 +116,7 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
 	int time1, time2;
 	u8 param1, param2, param3, param4;
 	unsigned long flags;
-	int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+	int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
 
 	/* calculate timing, according to PIO mode */
 	time1 = ide_pio_cycle_time(drive, pio);
diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index 4fe516df9f7..dd6dfb32e85 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -212,7 +212,7 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio)
 {
 	int active_time, recovery_time;
 	int active_cycles, recovery_cycles;
-	int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+	int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
 
         if (pio) {
 		unsigned int cycle_time;
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index 6424af15432..51dba82f881 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -110,7 +110,7 @@ static void qd65xx_select(ide_drive_t *drive)
 
 static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time)
 {
-	int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+	int clk = ide_vlb_clk ? ide_vlb_clk : 50;
 	u8 act_cyc, rec_cyc;
 
 	if (clk <= 33) {
@@ -132,7 +132,7 @@ static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery
 
 static u8 qd6580_compute_timing (int active_time, int recovery_time)
 {
-	int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock();
+	int clk = ide_vlb_clk ? ide_vlb_clk : 50;
 	u8 act_cyc, rec_cyc;
 
 	act_cyc = 17 - IDE_IN(active_time   * clk / 1000 + 1, 2, 17);
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index 7f46c224b7c..ae7a4329a58 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -140,7 +140,7 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
 {
-	int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock();
+	int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 
 	if (bus_speed <= 33)
 		pci_set_drvdata(dev, (void *) aec6xxx_33_base);
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index f2129d5e07f..f2de00adf14 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -72,7 +72,7 @@ static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
 	int s_time, a_time, c_time;
 	u8 s_clc, a_clc, r_clc;
 	unsigned long flags;
-	int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock();
+	int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 	int port = hwif->channel ? 0x5c : 0x58;
 	int portFIFO = hwif->channel ? 0x55 : 0x54;
 	u8 cd_dma_fifo = 0;
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index a373101747b..ad222206a42 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -179,7 +179,7 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev,
  * Determine the system bus clock.
  */
 
-	amd_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000;
+	amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000;
 
 	switch (amd_clock) {
 		case 33000: amd_clock = 33333; break;
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index b38a1980dcd..cd1ba14984a 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -525,12 +525,10 @@ static void cmd640_set_mode(ide_drive_t *drive, unsigned int index,
 	u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count;
 	int bus_speed;
 
-	if (cmd640_vlb && ide_vlb_clk)
-		bus_speed = ide_vlb_clk;
-	else if (!cmd640_vlb && ide_pci_clk)
-		bus_speed = ide_pci_clk;
+	if (cmd640_vlb)
+		bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
 	else
-		bus_speed = system_bus_clock();
+		bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 
 	if (pio_mode > 5)
 		pio_mode = 5;
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 08674711d08..ca4774aa27e 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -69,7 +69,7 @@ static u8 quantize_timing(int timing, int quant)
 static void program_cycle_times (ide_drive_t *drive, int cycle_time, int active_time)
 {
 	struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
-	int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock());
+	int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : 33);
 	u8  cycle_count, active_count, recovery_count, drwtim;
 	static const u8 recovery_values[] =
 		{15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0};
@@ -128,7 +128,7 @@ static void cmd64x_tune_pio(ide_drive_t *drive, const u8 pio)
 			    ide_pio_timings[pio].active_time);
 
 	setup_count = quantize_timing(ide_pio_timings[pio].setup_time,
-			1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock()));
+			1000 / (ide_pci_clk ? ide_pci_clk : 33));
 
 	/*
 	 * The primary channel has individual address setup timing registers
diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c
index 77cc22c2ad4..8c534afcb6c 100644
--- a/drivers/ide/pci/cy82c693.c
+++ b/drivers/ide/pci/cy82c693.c
@@ -134,7 +134,7 @@ static int calc_clk(int time, int bus_speed)
 static void compute_clocks(u8 pio, pio_clocks_t *p_pclk)
 {
 	int clk1, clk2;
-	int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock();
+	int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
 
 	/* we don't check against CY82C693's min and max speed,
 	 * so you can play with the idebus=xx parameter
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index e8c2570003f..3ed9728abd2 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -340,7 +340,7 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const
 	 * Determine system bus clock.
 	 */
 
-	via_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000;
+	via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000;
 
 	switch (via_clock) {
 		case 33000: via_clock = 33333; break;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 3261c669175..dad53565924 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -994,8 +994,6 @@ int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
 int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long);
 int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long);
 
-extern int system_bus_clock(void);
-
 extern int ide_driveid_update(ide_drive_t *);
 extern int ide_config_drive_speed(ide_drive_t *, u8);
 extern u8 eighty_ninty_three (ide_drive_t *);
-- 
cgit v1.2.3-70-g09d2


From 232595eaff951e96cabe5e85fed35f66b72ff51e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 15 Jul 2008 21:21:46 +0200
Subject: ide: remove obsoleted "hdx=" kernel parameters

* Remove obsoleted "hdx=" kernel parameters.

* Remove no longer used stridx() and match_parm().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 Documentation/kernel-parameters.txt |   3 -
 drivers/ide/ide.c                   | 139 +-----------------------------------
 2 files changed, 1 insertion(+), 141 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b52f47d588b..faeea507cdc 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -722,9 +722,6 @@ and is between 256 and 4096 characters. It is defined in the file
 	hd=		[EIDE] (E)IDE hard drive subsystem geometry
 			Format: <cyl>,<head>,<sect>
 
-	hd?=		[HW] (E)IDE subsystem
-	hd?lun=		See Documentation/ide/ide.txt.
-
 	highmem=nn[KMG]	[KNL,BOOT] forces the highmem zone to have an exact
 			size of <nn>. This works even on boxes that have no
 			highmem otherwise. This also works to reduce highmem
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index f65be738b16..6f600d81a97 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -721,90 +721,14 @@ set_val:
 
 EXPORT_SYMBOL(generic_ide_ioctl);
 
-/*
- * stridx() returns the offset of c within s,
- * or -1 if c is '\0' or not found within s.
- */
-static int __init stridx (const char *s, char c)
-{
-	char *i = strchr(s, c);
-	return (i && c) ? i - s : -1;
-}
-
-/*
- * match_parm() does parsing for ide_setup():
- *
- * 1. the first char of s must be '='.
- * 2. if the remainder matches one of the supplied keywords,
- *     the index (1 based) of the keyword is negated and returned.
- * 3. if the remainder is a series of no more than max_vals numbers
- *     separated by commas, the numbers are saved in vals[] and a
- *     count of how many were saved is returned.  Base10 is assumed,
- *     and base16 is allowed when prefixed with "0x".
- * 4. otherwise, zero is returned.
- */
-static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals)
-{
-	static const char *decimal = "0123456789";
-	static const char *hex = "0123456789abcdef";
-	int i, n;
-
-	if (*s++ == '=') {
-		/*
-		 * Try matching against the supplied keywords,
-		 * and return -(index+1) if we match one
-		 */
-		if (keywords != NULL) {
-			for (i = 0; *keywords != NULL; ++i) {
-				if (!strcmp(s, *keywords++))
-					return -(i+1);
-			}
-		}
-		/*
-		 * Look for a series of no more than "max_vals"
-		 * numeric values separated by commas, in base10,
-		 * or base16 when prefixed with "0x".
-		 * Return a count of how many were found.
-		 */
-		for (n = 0; (i = stridx(decimal, *s)) >= 0;) {
-			vals[n] = i;
-			while ((i = stridx(decimal, *++s)) >= 0)
-				vals[n] = (vals[n] * 10) + i;
-			if (*s == 'x' && !vals[n]) {
-				while ((i = stridx(hex, *++s)) >= 0)
-					vals[n] = (vals[n] * 0x10) + i;
-			}
-			if (++n == max_vals)
-				break;
-			if (*s == ',' || *s == ';')
-				++s;
-		}
-		if (!*s)
-			return n;
-	}
-	return 0;	/* zero = nothing matched */
-}
-
 /*
  * ide_setup() gets called VERY EARLY during initialization,
- * to handle kernel "command line" strings beginning with "hdx=" or "ide".
+ * to handle kernel "command line" strings beginning with "ide".
  *
  * Remember to update Documentation/ide/ide.txt if you change something here.
  */
 static int __init ide_setup(char *s)
 {
-	ide_hwif_t *hwif;
-	ide_drive_t *drive;
-	unsigned int hw, unit;
-	int vals[3];
-	const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1);
-
-	if (strncmp(s,"hd",2) == 0 && s[2] == '=')	/* hd= is for hd.c   */
-		return 0;				/* driver and not us */
-
-	if (strncmp(s, "ide", 3) && strncmp(s, "hd", 2))
-		return 0;
-
 	printk(KERN_INFO "ide_setup: %s", s);
 	init_ide_data ();
 
@@ -842,67 +766,6 @@ static int __init ide_setup(char *s)
 	}
 #endif /* CONFIG_BLK_DEV_IDEACPI */
 
-	/*
-	 * Look for drive options:  "hdx="
-	 */
-	if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) {
-		const char *hd_words[] = {
-			"none", "noprobe", "nowerr", "cdrom", "nodma",
-			"-6", "-7", "-8", "-9", "-10",
-			"noflush", "remap", "remap63", "scsi", NULL };
-		unit = s[2] - 'a';
-		hw   = unit / MAX_DRIVES;
-		unit = unit % MAX_DRIVES;
-		hwif = &ide_hwifs[hw];
-		drive = &hwif->drives[unit];
-		if (strncmp(s + 4, "ide-", 4) == 0) {
-			strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req));
-			goto obsolete_option;
-		}
-		switch (match_parm(&s[3], hd_words, vals, 3)) {
-			case -1: /* "none" */
-			case -2: /* "noprobe" */
-				drive->noprobe = 1;
-				goto obsolete_option;
-			case -3: /* "nowerr" */
-				drive->bad_wstat = BAD_R_STAT;
-				goto obsolete_option;
-			case -4: /* "cdrom" */
-				drive->present = 1;
-				drive->media = ide_cdrom;
-				/* an ATAPI device ignores DRDY */
-				drive->ready_stat = 0;
-				goto obsolete_option;
-			case -5: /* nodma */
-				drive->nodma = 1;
-				goto obsolete_option;
-			case -11: /* noflush */
-				drive->noflush = 1;
-				goto obsolete_option;
-			case -12: /* "remap" */
-				drive->remap_0_to_1 = 1;
-				goto obsolete_option;
-			case -13: /* "remap63" */
-				drive->sect0 = 63;
-				goto obsolete_option;
-			case -14: /* "scsi" */
-				drive->scsi = 1;
-				goto obsolete_option;
-			case 3: /* cyl,head,sect */
-				drive->media	= ide_disk;
-				drive->ready_stat = READY_STAT;
-				drive->cyl	= drive->bios_cyl  = vals[0];
-				drive->head	= drive->bios_head = vals[1];
-				drive->sect	= drive->bios_sect = vals[2];
-				drive->present	= 1;
-				drive->forced_geom = 1;
-				goto obsolete_option;
-			default:
-				goto bad_option;
-		}
-	}
-
-bad_option:
 	printk(" -- BAD OPTION\n");
 	return 1;
 obsolete_option:
-- 
cgit v1.2.3-70-g09d2


From dbac9f895f628deebc99dee86dfd21c1823013c3 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 15 Jul 2008 21:21:46 +0200
Subject: ide: cleanup init_ide_data()

* Remove no longer need init_ide_data() call from ide_setup().

* Cleanup init_ide_data().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide.c | 24 ------------------------
 1 file changed, 24 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 6f600d81a97..e8c88ff2f6b 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -151,32 +151,9 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif)
 	}
 }
 
-/*
- * init_ide_data() sets reasonable default values into all fields
- * of all instances of the hwifs and drives, but only on the first call.
- * Subsequent calls have no effect (they don't wipe out anything).
- *
- * This routine is normally called at driver initialization time,
- * but may also be called MUCH earlier during kernel "command-line"
- * parameter processing.  As such, we cannot depend on any other parts
- * of the kernel (such as memory allocation) to be functioning yet.
- *
- * This is too bad, as otherwise we could dynamically allocate the
- * ide_drive_t structs as needed, rather than always consuming memory
- * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them.
- *
- * FIXME: We should stuff the setup data into __init and copy the
- * relevant hwifs/allocate them properly during boot.
- */
-#define MAGIC_COOKIE 0x12345678
 static void __init init_ide_data (void)
 {
 	unsigned int index;
-	static unsigned long magic_cookie = MAGIC_COOKIE;
-
-	if (magic_cookie != MAGIC_COOKIE)
-		return;		/* already initialized */
-	magic_cookie = 0;
 
 	/* Initialise all interface structures */
 	for (index = 0; index < MAX_HWIFS; ++index) {
@@ -730,7 +707,6 @@ EXPORT_SYMBOL(generic_ide_ioctl);
 static int __init ide_setup(char *s)
 {
 	printk(KERN_INFO "ide_setup: %s", s);
-	init_ide_data ();
 
 #ifdef CONFIG_BLK_DEV_IDEDOUBLER
 	if (!strcmp(s, "ide=doubler")) {
-- 
cgit v1.2.3-70-g09d2


From 931ee0dc5c69e8113233d21942681ab8fecde7f9 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 15 Jul 2008 21:21:47 +0200
Subject: ide: remove obsoleted "ide=" kernel parameters

* Remove obsoleted "ide=" kernel parameters.

* Remove no longer needed:
  - ide_setup()
  - parse_options()
  - __setup("", ...)
  - module_param(options, ...)

* Use module_{init,exit}() for MODULE=y case and remove MODULE ifdef.

* Make ide_*acpi* and ide_doubler variables static.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-acpi.c     |  6 +--
 drivers/ide/ide-dma.c      |  2 +-
 drivers/ide/ide.c          | 91 +++-------------------------------------------
 drivers/ide/legacy/gayle.c |  4 +-
 include/linux/ide.h        |  4 --
 5 files changed, 10 insertions(+), 97 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 9d3601fa568..6f704628c27 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -60,15 +60,15 @@ struct ide_acpi_hwif_link {
 #define DEBPRINT(fmt, args...)	do {} while (0)
 #endif	/* DEBUGGING */
 
-int ide_noacpi;
+static int ide_noacpi;
 module_param_named(noacpi, ide_noacpi, bool, 0);
 MODULE_PARM_DESC(noacpi, "disable IDE ACPI support");
 
-int ide_acpigtf;
+static int ide_acpigtf;
 module_param_named(acpigtf, ide_acpigtf, bool, 0);
 MODULE_PARM_DESC(acpigtf, "enable IDE ACPI _GTF support");
 
-int ide_acpionboot;
+static int ide_acpionboot;
 module_param_named(acpionboot, ide_acpionboot, bool, 0);
 MODULE_PARM_DESC(acpionboot, "call IDE ACPI methods on boot");
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 653b1ade13d..174f4704614 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -692,7 +692,7 @@ static int ide_tune_dma(ide_drive_t *drive)
 	ide_hwif_t *hwif = drive->hwif;
 	u8 speed;
 
-	if (noautodma || drive->nodma || (drive->id->capability & 1) == 0)
+	if (drive->nodma || (drive->id->capability & 1) == 0)
 		return 0;
 
 	/* consult the list of known "bad" drives */
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index e8c88ff2f6b..1defba3eefe 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -87,9 +87,9 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
 					IDE8_MAJOR, IDE9_MAJOR };
 
 DEFINE_MUTEX(ide_cfg_mtx);
- __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 
-int noautodma = 0;
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
+EXPORT_SYMBOL(ide_lock);
 
 ide_hwif_t ide_hwifs[MAX_HWIFS];	/* master data repository */
 
@@ -698,59 +698,6 @@ set_val:
 
 EXPORT_SYMBOL(generic_ide_ioctl);
 
-/*
- * ide_setup() gets called VERY EARLY during initialization,
- * to handle kernel "command line" strings beginning with "ide".
- *
- * Remember to update Documentation/ide/ide.txt if you change something here.
- */
-static int __init ide_setup(char *s)
-{
-	printk(KERN_INFO "ide_setup: %s", s);
-
-#ifdef CONFIG_BLK_DEV_IDEDOUBLER
-	if (!strcmp(s, "ide=doubler")) {
-		extern int ide_doubler;
-
-		printk(" : Enabled support for IDE doublers\n");
-		ide_doubler = 1;
-		goto obsolete_option;
-	}
-#endif /* CONFIG_BLK_DEV_IDEDOUBLER */
-
-	if (!strcmp(s, "ide=nodma")) {
-		printk(" : Prevented DMA\n");
-		noautodma = 1;
-		goto obsolete_option;
-	}
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-	if (!strcmp(s, "ide=noacpi")) {
-		//printk(" : Disable IDE ACPI support.\n");
-		ide_noacpi = 1;
-		goto obsolete_option;
-	}
-	if (!strcmp(s, "ide=acpigtf")) {
-		//printk(" : Enable IDE ACPI _GTF support.\n");
-		ide_acpigtf = 1;
-		goto obsolete_option;
-	}
-	if (!strcmp(s, "ide=acpionboot")) {
-		//printk(" : Call IDE ACPI methods on boot.\n");
-		ide_acpionboot = 1;
-		goto obsolete_option;
-	}
-#endif /* CONFIG_BLK_DEV_IDEACPI */
-
-	printk(" -- BAD OPTION\n");
-	return 1;
-obsolete_option:
-	printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n");
-	return 1;
-}
-
-EXPORT_SYMBOL(ide_lock);
-
 static int ide_bus_match(struct device *dev, struct device_driver *drv)
 {
 	return 1;
@@ -1087,32 +1034,7 @@ out_port_class:
 	return ret;
 }
 
-#ifdef MODULE
-static char *options = NULL;
-module_param(options, charp, 0);
-MODULE_LICENSE("GPL");
-
-static void __init parse_options (char *line)
-{
-	char *next = line;
-
-	if (line == NULL || !*line)
-		return;
-	while ((line = next) != NULL) {
- 		if ((next = strchr(line,' ')) != NULL)
-			*next++ = 0;
-		if (!ide_setup(line))
-			printk (KERN_INFO "Unknown option '%s'\n", line);
-	}
-}
-
-int __init init_module (void)
-{
-	parse_options(options);
-	return ide_init();
-}
-
-void __exit cleanup_module (void)
+static void __exit ide_exit(void)
 {
 	proc_ide_destroy();
 
@@ -1121,10 +1043,7 @@ void __exit cleanup_module (void)
 	bus_unregister(&ide_bus_type);
 }
 
-#else /* !MODULE */
-
-__setup("", ide_setup);
-
 module_init(ide_init);
+module_exit(ide_exit);
 
-#endif /* MODULE */
+MODULE_LICENSE("GPL");
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index fed7d812761..b78941680c3 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -64,9 +64,7 @@
 #define GAYLE_HAS_CONTROL_REG	(!ide_doubler)
 #define GAYLE_IDEREG_SIZE	(ide_doubler ? 0x1000 : 0x2000)
 
-int ide_doubler = 0;	/* support IDE doublers? */
-EXPORT_SYMBOL_GPL(ide_doubler);
-
+static int ide_doubler;
 module_param_named(doubler, ide_doubler, bool, 0);
 MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
 #endif /* CONFIG_BLK_DEV_IDEDOUBLER */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index dad53565924..0fa1812d043 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -813,10 +813,6 @@ int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsig
 #ifndef _IDE_C
 extern	ide_hwif_t	ide_hwifs[];		/* master data repository */
 #endif
-extern int ide_noacpi;
-extern int ide_acpigtf;
-extern int ide_acpionboot;
-extern int noautodma;
 
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
-- 
cgit v1.2.3-70-g09d2


From ff07488346702f554aaeb6aae982540aa0302373 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 15 Jul 2008 21:21:50 +0200
Subject: ide: remove drive->ctl

Remove drive->ctl (it is always equal to 0x08 after init time).

While at it:

* Use ATA_DEVCTL_OBS define.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/h8300/ide-h8300.c |  4 ++--
 drivers/ide/ide-iops.c        | 10 +++++-----
 drivers/ide/ide-probe.c       |  2 +-
 drivers/ide/ide.c             |  1 -
 drivers/ide/pci/hpt366.c      |  3 +--
 drivers/ide/pci/ns87415.c     |  4 ++--
 drivers/ide/pci/scc_pata.c    |  4 ++--
 drivers/ide/pci/sgiioc4.c     |  2 +-
 include/linux/ide.h           |  3 +--
 9 files changed, 15 insertions(+), 18 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index d5afc28eaae..ae37ee58bae 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -96,7 +96,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
 	}
 
 	/* be sure we're looking at the low order bits */
-	outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+	outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
 	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = inb(io_ports->nsect_addr);
@@ -110,7 +110,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task)
 		tf->device = inb(io_ports->device_addr);
 
 	if (task->tf_flags & IDE_TFLAG_LBA48) {
-		outb(drive->ctl | 0x80, io_ports->ctl_addr);
+		outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
 		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = inb(io_ports->feature_addr);
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 4c32cf0b623..80ad4f234f3 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -186,7 +186,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 	}
 
 	/* be sure we're looking at the low order bits */
-	tf_outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+	tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
 	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = tf_inb(io_ports->nsect_addr);
@@ -200,7 +200,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
 		tf->device = tf_inb(io_ports->device_addr);
 
 	if (task->tf_flags & IDE_TFLAG_LBA48) {
-		tf_outb(drive->ctl | 0x80, io_ports->ctl_addr);
+		tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
 		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = tf_inb(io_ports->feature_addr);
@@ -1125,13 +1125,13 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 	 * recover from reset very quickly, saving us the first 50ms wait time.
 	 */
 	/* set SRST and nIEN */
-	hwif->OUTBSYNC(hwif, drive->ctl | 6, io_ports->ctl_addr);
+	hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | 6, io_ports->ctl_addr);
 	/* more than enough time */
 	udelay(10);
 	if (drive->quirk_list == 2)
-		ctl = drive->ctl;	/* clear SRST and nIEN */
+		ctl = ATA_DEVCTL_OBS;		/* clear SRST and nIEN */
 	else
-		ctl = drive->ctl | 2;	/* clear SRST, leave nIEN */
+		ctl = ATA_DEVCTL_OBS | 2;	/* clear SRST, leave nIEN */
 	hwif->OUTBSYNC(hwif, ctl, io_ports->ctl_addr);
 	/* more than enough time */
 	udelay(10);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 809362b13c9..d21e51a02c3 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1065,7 +1065,7 @@ static int init_irq (ide_hwif_t *hwif)
 
 		if (io_ports->ctl_addr)
 			/* clear nIEN */
-			hwif->OUTBSYNC(hwif, 0x08, io_ports->ctl_addr);
+			hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS, io_ports->ctl_addr);
 
 		if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup))
 	       		goto out_unlink;
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 1defba3eefe..2b8453510e0 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -136,7 +136,6 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif)
 		drive->media			= ide_disk;
 		drive->select.all		= (unit<<4)|0xa0;
 		drive->hwif			= hwif;
-		drive->ctl			= 0x08;
 		drive->ready_stat		= READY_STAT;
 		drive->bad_wstat		= BAD_W_STAT;
 		drive->special.b.recalibrate	= 1;
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index c929dadaaaf..397c6cbe953 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -759,8 +759,7 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
 				enable_irq (hwif->irq);
 		}
 	} else
-		outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
-		     hwif->io_ports.ctl_addr);
+		outb(ATA_DEVCTL_OBS | (mask ? 2 : 0), hwif->io_ports.ctl_addr);
 }
 
 /*
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index a7a41bb8277..45ba71a7182 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -76,7 +76,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
 	}
 
 	/* be sure we're looking at the low order bits */
-	outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+	outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
 	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = inb(io_ports->nsect_addr);
@@ -90,7 +90,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
 		tf->device = superio_ide_inb(io_ports->device_addr);
 
 	if (task->tf_flags & IDE_TFLAG_LBA48) {
-		outb(drive->ctl | 0x80, io_ports->ctl_addr);
+		outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
 		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = inb(io_ports->feature_addr);
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 32eb0877fce..1584ebb6a18 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -703,7 +703,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
 	}
 
 	/* be sure we're looking at the low order bits */
-	scc_ide_outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+	scc_ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
 
 	if (task->tf_flags & IDE_TFLAG_IN_NSECT)
 		tf->nsect  = scc_ide_inb(io_ports->nsect_addr);
@@ -717,7 +717,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task)
 		tf->device = scc_ide_inb(io_ports->device_addr);
 
 	if (task->tf_flags & IDE_TFLAG_LBA48) {
-		scc_ide_outb(drive->ctl | 0x80, io_ports->ctl_addr);
+		scc_ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
 
 		if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
 			tf->hob_feature = scc_ide_inb(io_ports->feature_addr);
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index c1b667c53f2..24513e3dcd6 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -111,7 +111,7 @@ sgiioc4_init_hwif_ports(hw_regs_t * hw, unsigned long data_port,
 static void
 sgiioc4_maskproc(ide_drive_t * drive, int mask)
 {
-	writeb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
+	writeb(ATA_DEVCTL_OBS | (mask ? 2 : 0),
 	       (void __iomem *)drive->hwif->io_ports.ctl_addr);
 }
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 4d1c9714f1d..d8c86f0362c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -364,7 +364,6 @@ typedef struct ide_drive_s {
         u8	wcache;		/* status of write cache */
 	u8	acoustic;	/* acoustic management */
 	u8	media;		/* disk, cdrom, tape, floppy, ... */
-	u8	ctl;		/* "normal" value for Control register */
 	u8	ready_stat;	/* min status value for drive ready */
 	u8	mult_count;	/* current multiple sector setting */
 	u8	mult_req;	/* requested multiple sector setting */
@@ -1340,7 +1339,7 @@ static inline void ide_set_irq(ide_drive_t *drive, int on)
 {
 	ide_hwif_t *hwif = drive->hwif;
 
-	hwif->OUTBSYNC(hwif, drive->ctl | (on ? 0 : 2),
+	hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | (on ? 0 : 2),
 		       hwif->io_ports.ctl_addr);
 }
 
-- 
cgit v1.2.3-70-g09d2


From 256c5f8eef7b9a8c8a85c15c58cda9df455f947e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Wed, 16 Jul 2008 20:33:39 +0200
Subject: ide: fix hwif-s initialization

* Add ide_hwifs[] entry initialization to ide_find_port_slot()
  and remove ide_init_port_data() calls from host drivers.

* Unexport ide_init_port_data().

* Remove no longer needed init_ide_data().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/arm/palm_bk3710.c  |  1 -
 drivers/ide/h8300/ide-h8300.c  |  1 -
 drivers/ide/ide-pnp.c          |  1 -
 drivers/ide/ide-probe.c        | 10 +++++++---
 drivers/ide/ide.c              | 15 ---------------
 drivers/ide/legacy/buddha.c    |  1 -
 drivers/ide/legacy/falconide.c |  1 -
 drivers/ide/legacy/gayle.c     |  1 -
 drivers/ide/legacy/ide-cs.c    |  1 -
 drivers/ide/legacy/macide.c    |  1 -
 drivers/ide/legacy/q40ide.c    |  1 -
 drivers/ide/pci/delkin_cb.c    |  1 -
 12 files changed, 7 insertions(+), 28 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c
index 9b8a45d2cf1..c79b85b6e4a 100644
--- a/drivers/ide/arm/palm_bk3710.c
+++ b/drivers/ide/arm/palm_bk3710.c
@@ -400,7 +400,6 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev)
 
 	i = hwif->index;
 
-	ide_init_port_data(hwif, i);
 	ide_init_port_hw(hwif, &hw);
 
 	default_hwif_mmiops(hwif);
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index ae37ee58bae..dfce105bae6 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -199,7 +199,6 @@ static int __init h8300_ide_init(void)
 	}
 
 	index = hwif->index;
-	ide_init_port_data(hwif, index);
 	ide_init_port_hw(hwif, &hw);
 	hwif_setup(hwif);
 	hwif->host_flags = IDE_HFLAG_NO_IO_32BIT;
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
index adbd0178416..fc1e10c9d1c 100644
--- a/drivers/ide/ide-pnp.c
+++ b/drivers/ide/ide-pnp.c
@@ -62,7 +62,6 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 		u8 index = hwif->index;
 		u8 idx[4] = { index, 0xff, 0xff, 0xff };
 
-		ide_init_port_data(hwif, index);
 		ide_init_port_hw(hwif, &hw);
 
 		printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index d21e51a02c3..592d424412e 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1473,22 +1473,26 @@ ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d)
 		for (; i < MAX_HWIFS; i++) {
 			hwif = &ide_hwifs[i];
 			if (hwif->chipset == ide_unknown)
-				return hwif;
+				goto out_found;
 		}
 	} else {
 		for (i = 2; i < MAX_HWIFS; i++) {
 			hwif = &ide_hwifs[i];
 			if (hwif->chipset == ide_unknown)
-				return hwif;
+				goto out_found;
 		}
 		for (i = 0; i < 2 && i < MAX_HWIFS; i++) {
 			hwif = &ide_hwifs[i];
 			if (hwif->chipset == ide_unknown)
-				return hwif;
+				goto out_found;
 		}
 	}
 
 	return NULL;
+
+out_found:
+	ide_init_port_data(hwif, i);
+	return hwif;
 }
 EXPORT_SYMBOL_GPL(ide_find_port_slot);
 
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 2b8453510e0..32d8ee281d5 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -121,7 +121,6 @@ void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
 
 	ide_port_init_devices_data(hwif);
 }
-EXPORT_SYMBOL_GPL(ide_init_port_data);
 
 static void ide_port_init_devices_data(ide_hwif_t *hwif)
 {
@@ -150,18 +149,6 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif)
 	}
 }
 
-static void __init init_ide_data (void)
-{
-	unsigned int index;
-
-	/* Initialise all interface structures */
-	for (index = 0; index < MAX_HWIFS; ++index) {
-		ide_hwif_t *hwif = &ide_hwifs[index];
-
-		ide_init_port_data(hwif, index);
-	}
-}
-
 void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
 {
 	ide_hwgroup_t *hwgroup = hwif->hwgroup;
@@ -1021,8 +1008,6 @@ static int __init ide_init(void)
 		goto out_port_class;
 	}
 
-	init_ide_data();
-
 	proc_ide_create();
 
 	return 0;
diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c
index 9a1d27ef3f8..0497e7f85b0 100644
--- a/drivers/ide/legacy/buddha.c
+++ b/drivers/ide/legacy/buddha.c
@@ -227,7 +227,6 @@ fail_base2:
 			if (hwif) {
 				u8 index = hwif->index;
 
-				ide_init_port_data(hwif, index);
 				ide_init_port_hw(hwif, &hw);
 
 				idx[i] = index;
diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c
index af11028b479..129a812bb57 100644
--- a/drivers/ide/legacy/falconide.c
+++ b/drivers/ide/legacy/falconide.c
@@ -111,7 +111,6 @@ static int __init falconide_init(void)
 		u8 index = hwif->index;
 		u8 idx[4] = { index, 0xff, 0xff, 0xff };
 
-		ide_init_port_data(hwif, index);
 		ide_init_port_hw(hwif, &hw);
 
 		/* Atari has a byte-swapped IDE interface */
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index b78941680c3..7e74b20202d 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -185,7 +185,6 @@ found:
 	if (hwif) {
 	    u8 index = hwif->index;
 
-	    ide_init_port_data(hwif, index);
 	    ide_init_port_hw(hwif, &hw);
 
 	    idx[i] = index;
diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c
index 8dbf4d9b644..7c69608154c 100644
--- a/drivers/ide/legacy/ide-cs.c
+++ b/drivers/ide/legacy/ide-cs.c
@@ -187,7 +187,6 @@ static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl,
 
     i = hwif->index;
 
-    ide_init_port_data(hwif, i);
     ide_init_port_hw(hwif, &hw);
     hwif->port_ops = &idecs_port_ops;
 
diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c
index 2e84290d0bc..0a6195bcfed 100644
--- a/drivers/ide/legacy/macide.c
+++ b/drivers/ide/legacy/macide.c
@@ -130,7 +130,6 @@ static int __init macide_init(void)
 		u8 index = hwif->index;
 		u8 idx[4] = { index, 0xff, 0xff, 0xff };
 
-		ide_init_port_data(hwif, index);
 		ide_init_port_hw(hwif, &hw);
 
 		ide_device_add(idx, NULL);
diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c
index 8ff6e2d2083..9c2b9d078f6 100644
--- a/drivers/ide/legacy/q40ide.c
+++ b/drivers/ide/legacy/q40ide.c
@@ -142,7 +142,6 @@ static int __init q40ide_init(void)
 
 	hwif = ide_find_port();
 	if (hwif) {
-		ide_init_port_data(hwif, hwif->index);
 		ide_init_port_hw(hwif, &hw);
 
 		/* Q40 has a byte-swapped IDE interface */
diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c
index af0f30051d5..0106e2a2df7 100644
--- a/drivers/ide/pci/delkin_cb.c
+++ b/drivers/ide/pci/delkin_cb.c
@@ -93,7 +93,6 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
 
 	i = hwif->index;
 
-	ide_init_port_data(hwif, i);
 	ide_init_port_hw(hwif, &hw);
 
 	idx[0] = i;
-- 
cgit v1.2.3-70-g09d2


From 63b51c6d1d63276fd320615c042f1ff5d94ebab8 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Wed, 16 Jul 2008 20:33:40 +0200
Subject: ide: make ide_hwifs[] static

Move ide_hwifs[] from ide.c to ide-probe.c and make it static.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-probe.c |  2 ++
 drivers/ide/ide.c       |  2 --
 include/linux/ide.h     | 12 ------------
 3 files changed, 2 insertions(+), 14 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 592d424412e..97dda05914a 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -39,6 +39,8 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
+static ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
+
 /**
  *	generic_id		-	add a generic drive id
  *	@drive:	drive to make an ID block for
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 32d8ee281d5..b7855a13f0e 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -91,8 +91,6 @@ DEFINE_MUTEX(ide_cfg_mtx);
 __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 EXPORT_SYMBOL(ide_lock);
 
-ide_hwif_t ide_hwifs[MAX_HWIFS];	/* master data repository */
-
 static void ide_port_init_devices_data(ide_hwif_t *);
 
 /*
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 535c439fd8f..15d5668198a 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -801,18 +801,6 @@ struct ide_driver_s {
 
 int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
 
-/*
- * ide_hwifs[] is the master data structure used to keep track
- * of just about everything in ide.c.  Whenever possible, routines
- * should be using pointers to a drive (ide_drive_t *) or
- * pointers to a hwif (ide_hwif_t *), rather than indexing this
- * structure directly (the allocation/layout may change!).
- *
- */
-#ifndef _IDE_C
-extern	ide_hwif_t	ide_hwifs[];		/* master data repository */
-#endif
-
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
-- 
cgit v1.2.3-70-g09d2


From c56c5648a3bd15ff14c50f284b261140cd5b5472 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Wed, 16 Jul 2008 20:33:40 +0200
Subject: ide: set hwif->dev in ide_init_port_hw() (take 2)

* Add 'parent' field to hw_regs_t for optional parent device pointer (needed
  by macio PMAC IDE controllers) and set hwif->dev in ide_init_port_hw().

* Update au1xxx-ide.c, sgiioc4.c, pmac.c and setup-pci.c accordingly.

v2:

* Update scc_pata.c.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide.c             | 3 ++-
 drivers/ide/mips/au1xxx-ide.c | 2 --
 drivers/ide/pci/scc_pata.c    | 1 -
 drivers/ide/pci/sgiioc4.c     | 2 --
 drivers/ide/ppc/pmac.c        | 6 ++----
 drivers/ide/setup-pci.c       | 2 --
 include/linux/ide.h           | 2 +-
 7 files changed, 5 insertions(+), 13 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index b7855a13f0e..9240888e5ef 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -297,7 +297,8 @@ void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
 	memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
 	hwif->irq = hw->irq;
 	hwif->chipset = hw->chipset;
-	hwif->gendev.parent = hw->dev;
+	hwif->dev = hw->dev;
+	hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
 	hwif->ack_intr = hw->ack_intr;
 }
 EXPORT_SYMBOL_GPL(ide_init_port_hw);
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 1a6c27b3249..08c46c36b7e 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -600,8 +600,6 @@ static int au_ide_probe(struct device *dev)
 
 	ide_init_port_hw(hwif, &hw);
 
-	hwif->dev = dev;
-
 	/* If the user has selected DDMA assisted copies,
 	   then set up a few local I/O function entry points 
 	*/
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index 1584ebb6a18..71bff3131b9 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -572,7 +572,6 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev,
 	hw.dev = &dev->dev;
 	hw.chipset = ide_pci;
 	ide_init_port_hw(hwif, &hw);
-	hwif->dev = &dev->dev;
 
 	idx[0] = hwif->index;
 
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 24513e3dcd6..af91cc52578 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -625,8 +625,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
 	hw.dev = &dev->dev;
 	ide_init_port_hw(hwif, &hw);
 
-	hwif->dev = &dev->dev;
-
 	/* The IOC4 uses MMIO rather than Port IO. */
 	default_hwif_mmiops(hwif);
 
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index cfa103a51b3..93fb9067c04 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1148,8 +1148,6 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
 	base = ioremap(macio_resource_start(mdev, 0), 0x400);
 	regbase = (unsigned long) base;
 
-	hwif->dev = &mdev->bus->pdev->dev;
-
 	pmif->mdev = mdev;
 	pmif->node = mdev->ofdev.node;
 	pmif->regbase = regbase;
@@ -1171,7 +1169,8 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
 	memset(&hw, 0, sizeof(hw));
 	pmac_ide_init_ports(&hw, pmif->regbase);
 	hw.irq = irq;
-	hw.dev = &mdev->ofdev.dev;
+	hw.dev = &mdev->bus->pdev->dev;
+	hw.parent = &mdev->ofdev.dev;
 
 	rc = pmac_ide_setup_device(pmif, hwif, &hw);
 	if (rc != 0) {
@@ -1271,7 +1270,6 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto out_free_pmif;
 	}
 
-	hwif->dev = &pdev->dev;
 	pmif->mdev = NULL;
 	pmif->node = np;
 
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index abcfb1739d4..3dea5a59626 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -346,8 +346,6 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
 
 	ide_init_port_hw(hwif, &hw);
 
-	hwif->dev = &dev->dev;
-
 	return hwif;
 }
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 15d5668198a..a6a2eccb652 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -171,7 +171,7 @@ typedef struct hw_regs_s {
 	int		irq;			/* our irq number */
 	ide_ack_intr_t	*ack_intr;		/* acknowledge interrupt */
 	hwif_chipset_t  chipset;
-	struct device	*dev;
+	struct device	*dev, *parent;
 } hw_regs_t;
 
 void ide_init_port_data(struct hwif_s *, unsigned int);
-- 
cgit v1.2.3-70-g09d2


From 61729415e64a1149d4eb36c3fac26a28728ad1d7 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Wed, 16 Jul 2008 20:33:43 +0200
Subject: ide: remove needless includes from ide.c

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide.c | 13 -------------
 1 file changed, 13 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 9240888e5ef..90ae00d4aaf 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -50,29 +50,16 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/major.h>
 #include <linux/errno.h>
 #include <linux/genhd.h>
-#include <linux/blkpg.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include <linux/delay.h>
 #include <linux/ide.h>
 #include <linux/completion.h>
-#include <linux/reboot.h>
-#include <linux/cdrom.h>
-#include <linux/seq_file.h>
 #include <linux/device.h>
-#include <linux/bitops.h>
-
-#include <asm/byteorder.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
 
 
 /* default maximum number of failures */
-- 
cgit v1.2.3-70-g09d2


From 79e36a9f54aaf4a52eb2d9520953aa3960e99294 Mon Sep 17 00:00:00 2001
From: Elias Oltmanns <eo@nebensachen.de>
Date: Wed, 16 Jul 2008 20:33:48 +0200
Subject: IDE: Fix HDIO_DRIVE_RESET handling

Currently, the code path executing an HDIO_DRIVE_RESET ioctl is broken
in various ways.  Most importantly, it is treated as an out of band
request in an illegal way which may very likely lead to system lock ups.
Use the drive's request queue to avoid this problem (and fix a locking
issue for free along the way).

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Randy Dunlap" <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-io.c   | 23 ++++++++++++++++++++++-
 drivers/ide/ide-iops.c | 18 +++++++++++++-----
 drivers/ide/ide.c      | 41 +++++++++++++++--------------------------
 include/linux/ide.h    |  6 ++++++
 4 files changed, 56 insertions(+), 32 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 28057747c1f..2b33c129740 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -766,6 +766,18 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
  	return ide_stopped;
 }
 
+static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
+{
+	switch (rq->cmd[0]) {
+	case REQ_DRIVE_RESET:
+		return ide_do_reset(drive);
+	default:
+		blk_dump_rq_flags(rq, "ide_special_rq - bad request");
+		ide_end_request(drive, 0, 0);
+		return ide_stopped;
+	}
+}
+
 static void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
 {
 	struct request_pm_state *pm = rq->data;
@@ -869,7 +881,16 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq)
 			    pm->pm_step == ide_pm_state_completed)
 				ide_complete_pm_request(drive, rq);
 			return startstop;
-		}
+		} else if (!rq->rq_disk && blk_special_request(rq))
+			/*
+			 * TODO: Once all ULDs have been modified to
+			 * check for specific op codes rather than
+			 * blindly accepting any special request, the
+			 * check for ->rq_disk above may be replaced
+			 * by a more suitable mechanism or even
+			 * dropped entirely.
+			 */
+			return ide_special_rq(drive, rq);
 
 		drv = *(ide_driver_t **)rq->rq_disk->private_data;
 		return drv->do_request(drive, rq, block);
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 80ad4f234f3..96f63eb1209 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -905,6 +905,14 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
 }
 EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
 
+static inline void ide_complete_drive_reset(ide_drive_t *drive)
+{
+	struct request *rq = drive->hwif->hwgroup->rq;
+
+	if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
+		ide_end_request(drive, 1, 0);
+}
+
 /* needed below */
 static ide_startstop_t do_reset1 (ide_drive_t *, int);
 
@@ -940,7 +948,7 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
 	}
 	/* done polling */
 	hwgroup->polling = 0;
-	hwgroup->resetting = 0;
+	ide_complete_drive_reset(drive);
 	return ide_stopped;
 }
 
@@ -961,7 +969,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 		if (port_ops->reset_poll(drive)) {
 			printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
 				hwif->name, drive->name);
-			return ide_stopped;
+			goto out;
 		}
 	}
 
@@ -1004,7 +1012,8 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 		}
 	}
 	hwgroup->polling = 0;	/* done polling */
-	hwgroup->resetting = 0; /* done reset attempt */
+out:
+	ide_complete_drive_reset(drive);
 	return ide_stopped;
 }
 
@@ -1090,7 +1099,6 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 
 	/* For an ATAPI device, first try an ATAPI SRST. */
 	if (drive->media != ide_disk && !do_not_try_atapi) {
-		hwgroup->resetting = 1;
 		pre_reset(drive);
 		SELECT_DRIVE(drive);
 		udelay (20);
@@ -1112,10 +1120,10 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 
 	if (io_ports->ctl_addr == 0) {
 		spin_unlock_irqrestore(&ide_lock, flags);
+		ide_complete_drive_reset(drive);
 		return ide_stopped;
 	}
 
-	hwgroup->resetting = 1;
 	/*
 	 * Note that we also set nIEN while resetting the device,
 	 * to mask unwanted interrupts from the interface during the reset.
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 90ae00d4aaf..1ec983b0051 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -529,6 +529,19 @@ static int generic_ide_resume(struct device *dev)
 	return err;
 }
 
+static void generic_drive_reset(ide_drive_t *drive)
+{
+	struct request *rq;
+
+	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+	rq->cmd_type = REQ_TYPE_SPECIAL;
+	rq->cmd_len = 1;
+	rq->cmd[0] = REQ_DRIVE_RESET;
+	rq->cmd_flags |= REQ_SOFTBARRIER;
+	blk_execute_rq(drive->queue, NULL, rq, 1);
+	blk_put_request(rq);
+}
+
 int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
 			unsigned int cmd, unsigned long arg)
 {
@@ -603,33 +616,9 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
 			if (!capable(CAP_SYS_ADMIN))
 				return -EACCES;
 
-			/*
-			 *	Abort the current command on the
-			 *	group if there is one, taking
-			 *	care not to allow anything else
-			 *	to be queued and to die on the
-			 *	spot if we miss one somehow
-			 */
-
-			spin_lock_irqsave(&ide_lock, flags);
-
-			if (HWGROUP(drive)->resetting) {
-				spin_unlock_irqrestore(&ide_lock, flags);
-				return -EBUSY;
-			}
-
-			ide_abort(drive, "drive reset");
-
-			BUG_ON(HWGROUP(drive)->handler);
-
-			/* Ensure nothing gets queued after we
-			   drop the lock. Reset will clear the busy */
-
-			HWGROUP(drive)->busy = 1;
-			spin_unlock_irqrestore(&ide_lock, flags);
-			(void) ide_do_reset(drive);
-
+			generic_drive_reset(drive);
 			return 0;
+
 		case HDIO_GET_BUSSTATE:
 			if (!capable(CAP_SYS_ADMIN))
 				return -EACCES;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f9cbe9350ca..021710cc1b1 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -138,6 +138,12 @@ struct ide_io_ports {
 #define WAIT_CMD	(10*HZ)	/* 10sec  - maximum wait for an IRQ to happen */
 #define WAIT_MIN_SLEEP	(2*HZ/100)	/* 20msec - minimum sleep time */
 
+/*
+ * Op codes for special requests to be handled by ide_special_rq().
+ * Values should be in the range of 0x20 to 0x3f.
+ */
+#define REQ_DRIVE_RESET		0x20
+
 /*
  * Check for an interrupt and acknowledge the interrupt status
  */
-- 
cgit v1.2.3-70-g09d2


From 64a8f00ff19508b3962c8a932375dbae88bee4d6 Mon Sep 17 00:00:00 2001
From: Elias Oltmanns <eo@nebensachen.de>
Date: Wed, 16 Jul 2008 20:33:48 +0200
Subject: IDE: Report errors during drive reset back to user space

Make sure that each error condition during the execution of an
HDIO_DRIVE_RESET ioctl is actually reported to the calling process.
Also, unify the exit path of reset_pollfunc() when returning ide_stopped
since the need of ->port_ops->reset_poll() to be treated specially has
vanished (way back, it seems).

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Randy Dunlap" <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 Documentation/ioctl/hdio.txt |  2 ++
 drivers/ide/ide-iops.c       | 18 +++++++++++-------
 drivers/ide/ide.c            | 10 ++++++----
 drivers/ide/pci/siimage.c    |  3 +--
 4 files changed, 20 insertions(+), 13 deletions(-)

(limited to 'drivers/ide/ide.c')

diff --git a/Documentation/ioctl/hdio.txt b/Documentation/ioctl/hdio.txt
index 44d283d6b13..91a6ecbae0b 100644
--- a/Documentation/ioctl/hdio.txt
+++ b/Documentation/ioctl/hdio.txt
@@ -508,6 +508,8 @@ HDIO_DRIVE_RESET		execute a device reset
 
 	error returns:
 	  EACCES	Access denied:  requires CAP_SYS_ADMIN
+	  ENXIO		No such device:	phy dead or ctl_addr == 0
+	  EIO		I/O error:	reset timed out or hardware error
 
 	notes:
 
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 96f63eb1209..44aaec256a3 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -905,12 +905,12 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
 }
 EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
 
-static inline void ide_complete_drive_reset(ide_drive_t *drive)
+static inline void ide_complete_drive_reset(ide_drive_t *drive, int err)
 {
 	struct request *rq = drive->hwif->hwgroup->rq;
 
 	if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET)
-		ide_end_request(drive, 1, 0);
+		ide_end_request(drive, err ? err : 1, 0);
 }
 
 /* needed below */
@@ -948,7 +948,7 @@ static ide_startstop_t atapi_reset_pollfunc (ide_drive_t *drive)
 	}
 	/* done polling */
 	hwgroup->polling = 0;
-	ide_complete_drive_reset(drive);
+	ide_complete_drive_reset(drive, 0);
 	return ide_stopped;
 }
 
@@ -964,9 +964,11 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 	ide_hwif_t *hwif	= HWIF(drive);
 	const struct ide_port_ops *port_ops = hwif->port_ops;
 	u8 tmp;
+	int err = 0;
 
 	if (port_ops && port_ops->reset_poll) {
-		if (port_ops->reset_poll(drive)) {
+		err = port_ops->reset_poll(drive);
+		if (err) {
 			printk(KERN_ERR "%s: host reset_poll failure for %s.\n",
 				hwif->name, drive->name);
 			goto out;
@@ -983,6 +985,7 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 		}
 		printk("%s: reset timed-out, status=0x%02x\n", hwif->name, tmp);
 		drive->failures++;
+		err = -EIO;
 	} else  {
 		printk("%s: reset: ", hwif->name);
 		tmp = ide_read_error(drive);
@@ -1009,11 +1012,12 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
 			if (tmp & 0x80)
 				printk("; slave: failed");
 			printk("\n");
+			err = -EIO;
 		}
 	}
-	hwgroup->polling = 0;	/* done polling */
 out:
-	ide_complete_drive_reset(drive);
+	hwgroup->polling = 0;	/* done polling */
+	ide_complete_drive_reset(drive, err);
 	return ide_stopped;
 }
 
@@ -1120,7 +1124,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
 
 	if (io_ports->ctl_addr == 0) {
 		spin_unlock_irqrestore(&ide_lock, flags);
-		ide_complete_drive_reset(drive);
+		ide_complete_drive_reset(drive, -ENXIO);
 		return ide_stopped;
 	}
 
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 1ec983b0051..d4a6b102a77 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -529,17 +529,20 @@ static int generic_ide_resume(struct device *dev)
 	return err;
 }
 
-static void generic_drive_reset(ide_drive_t *drive)
+static int generic_drive_reset(ide_drive_t *drive)
 {
 	struct request *rq;
+	int ret = 0;
 
 	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
 	rq->cmd_type = REQ_TYPE_SPECIAL;
 	rq->cmd_len = 1;
 	rq->cmd[0] = REQ_DRIVE_RESET;
 	rq->cmd_flags |= REQ_SOFTBARRIER;
-	blk_execute_rq(drive->queue, NULL, rq, 1);
+	if (blk_execute_rq(drive->queue, NULL, rq, 1))
+		ret = rq->errors;
 	blk_put_request(rq);
+	return ret;
 }
 
 int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
@@ -616,8 +619,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
 			if (!capable(CAP_SYS_ADMIN))
 				return -EACCES;
 
-			generic_drive_reset(drive);
-			return 0;
+			return generic_drive_reset(drive);
 
 		case HDIO_GET_BUSSTATE:
 			if (!capable(CAP_SYS_ADMIN))
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index b75e9bb390a..6e9d7655d89 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -421,8 +421,7 @@ static int sil_sata_reset_poll(ide_drive_t *drive)
 		if ((sata_stat & 0x03) != 0x03) {
 			printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
 					    hwif->name, sata_stat);
-			HWGROUP(drive)->polling = 0;
-			return ide_started;
+			return -ENXIO;
 		}
 	}
 
-- 
cgit v1.2.3-70-g09d2