From 34a4d048d3cf11546864bc09ddab6c2e7b0f7e65 Mon Sep 17 00:00:00 2001
From: Xiang wangx <wangxiang@cdjrlc.com>
Date: Sat, 4 Jun 2022 22:29:27 +0800
Subject: [PATCH 01/16] ata: libata: Fix syntax errors in comments

Delete the redundant word 'in'.

Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c
index c38027887499..a7e9a75410a3 100644
--- a/drivers/ata/libata-transport.c
+++ b/drivers/ata/libata-transport.c
@@ -9,7 +9,7 @@
  * and various sysfs attributes to expose these topologies and management
  * interfaces to user-space.
  *
- * There are 3 objects defined in in this class:
+ * There are 3 objects defined in this class:
  * - ata_port
  * - ata_link
  * - ata_device

From 305f8db79d76ac3e047fe5004d2175b5835bb7fc Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sun, 15 May 2022 23:41:23 +0300
Subject: [PATCH 02/16] ata: pata_hpt37x: move claculating PCI clock from
 hpt37x_clock_slot()

hpt37x_init_one() incorrectly calls an averaged f_CNT register value 'freq'
and hpt37x_clock_slot() takes that value as the 'freq' parameter -- rename
the former variable to 'fcnt' and move the actual code calculating the PCI
clock from hpt37x_clock_slot() to hpt37x_init_one(), along with adding the
frequency clamping code, in preparation for the factoring out the PCI clock
detection, so that this driver would become more like the 'pata_hpt3x2n'
driver...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/pata_hpt37x.c | 45 ++++++++++++++++++++++++---------------
 1 file changed, 28 insertions(+), 17 deletions(-)

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 156f304ef051..80564ea50966 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -23,7 +23,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"pata_hpt37x"
-#define DRV_VERSION	"0.6.25"
+#define DRV_VERSION	"0.6.28"
 
 struct hpt_clock {
 	u8	xfer_speed;
@@ -592,21 +592,19 @@ static struct ata_port_operations hpt374_fn1_port_ops = {
 
 /**
  *	hpt37x_clock_slot	-	Turn timing to PC clock entry
- *	@freq: Reported frequency timing
- *	@base: Base timing
+ *	@freq: Reported frequency in MHz
  *
- *	Turn the timing data intoa clock slot (0 for 33, 1 for 40, 2 for 50
+ *	Turn the timing data into a clock slot (0 for 33, 1 for 40, 2 for 50
  *	and 3 for 66Mhz)
  */
 
-static int hpt37x_clock_slot(unsigned int freq, unsigned int base)
+static int hpt37x_clock_slot(unsigned int freq)
 {
-	unsigned int f = (base * freq) / 192;	/* Mhz */
-	if (f < 40)
+	if (freq < 40)
 		return 0;	/* 33Mhz slot */
-	if (f < 45)
+	if (freq < 45)
 		return 1;	/* 40Mhz slot */
-	if (f < 55)
+	if (freq < 55)
 		return 2;	/* 50Mhz slot */
 	return 3;		/* 60Mhz slot */
 }
@@ -770,7 +768,8 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	u8 rev = dev->revision;
 	u8 irqmask;
 	u8 mcr1;
-	u32 freq;
+	unsigned int freq; /* MHz */
+	u32 fcnt;
 	int prefer_dpll = 1;
 
 	unsigned long iobase = pci_resource_start(dev, 4);
@@ -903,13 +902,13 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	 */
 
 	if (chip_table == &hpt374) {
-		freq = hpt374_read_freq(dev);
-		if (freq == 0)
+		fcnt = hpt374_read_freq(dev);
+		if (fcnt == 0)
 			return -ENODEV;
 	} else
-		freq = inl(iobase + 0x90);
+		fcnt = inl(iobase + 0x90);
 
-	if ((freq >> 12) != 0xABCDE) {
+	if ((fcnt >> 12) != 0xABCDE) {
 		int i;
 		u16 sr;
 		u32 total = 0;
@@ -922,16 +921,28 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 			total += sr & 0x1FF;
 			udelay(15);
 		}
-		freq = total / 128;
+		fcnt = total / 128;
 	}
-	freq &= 0x1FF;
+	fcnt &= 0x1FF;
+
+	freq = (fcnt * chip_table->base) / 192;	/* Mhz */
+
+	/* Clamp to bands */
+	if (freq < 40)
+		freq = 33;
+	else if (freq < 45)
+		freq = 40;
+	else if (freq < 55)
+		freq = 50;
+	else
+		freq = 66;
 
 	/*
 	 *	Turn the frequency check into a band and then find a timing
 	 *	table to match it.
 	 */
 
-	clock_slot = hpt37x_clock_slot(freq, chip_table->base);
+	clock_slot = hpt37x_clock_slot(freq);
 	if (chip_table->clocks[clock_slot] == NULL || prefer_dpll) {
 		/*
 		 *	We need to try PLL mode instead

From 96c34ac4ec30f31941b55f6866a5cc7631b5e92f Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sun, 15 May 2022 23:41:24 +0300
Subject: [PATCH 03/16] ata: pata_hpt37x: factor out hpt37x_pci_clock()

Factor out the PCI clock frequency detection code into hpt37x_pci_clock(),
so that this driver becomes more like 'pata_hpt3x2n'.  Note that I decided
to change the way HPT374 is identified to using the PCI device ID...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/pata_hpt37x.c | 94 +++++++++++++++++++++------------------
 1 file changed, 51 insertions(+), 43 deletions(-)

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 80564ea50966..38fc7f3d593c 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -23,7 +23,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"pata_hpt37x"
-#define DRV_VERSION	"0.6.28"
+#define DRV_VERSION	"0.6.29"
 
 struct hpt_clock {
 	u8	xfer_speed;
@@ -664,6 +664,53 @@ static u32 hpt374_read_freq(struct pci_dev *pdev)
 	return freq;
 }
 
+static int hpt37x_pci_clock(struct pci_dev *pdev, unsigned int base)
+{
+	unsigned int freq;
+	u32 fcnt;
+
+	/*
+	 * Some devices do not let this value be accessed via PCI space
+	 * according to the old driver. In addition we must use the value
+	 * from FN 0 on the HPT374.
+	 */
+	if (pdev->device == PCI_DEVICE_ID_TTI_HPT374) {
+		fcnt = hpt374_read_freq(pdev);
+		if (!fcnt)
+			return 0;
+	} else	{
+		fcnt = inl(pci_resource_start(pdev, 4) + 0x90);
+	}
+
+	if ((fcnt >> 12) != 0xABCDE) {
+		u32 total = 0;
+		int i;
+		u16 sr;
+
+		dev_warn(&pdev->dev, "BIOS clock data not set\n");
+
+		/* This is the process the HPT371 BIOS is reported to use */
+		for (i = 0; i < 128; i++) {
+			pci_read_config_word(pdev, 0x78, &sr);
+			total += sr & 0x1FF;
+			udelay(15);
+		}
+		fcnt = total / 128;
+	}
+	fcnt &= 0x1FF;
+
+	freq = (fcnt * base) / 192;	/* in MHz */
+
+	/* Clamp to bands */
+	if (freq < 40)
+		return 33;
+	if (freq < 45)
+		return 40;
+	if (freq < 55)
+		return 50;
+	return 66;
+}
+
 /**
  *	hpt37x_init_one		-	Initialise an HPT37X/302
  *	@dev: PCI device
@@ -769,7 +816,6 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	u8 irqmask;
 	u8 mcr1;
 	unsigned int freq; /* MHz */
-	u32 fcnt;
 	int prefer_dpll = 1;
 
 	unsigned long iobase = pci_resource_start(dev, 4);
@@ -895,47 +941,9 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	if (chip_table == &hpt372a)
 		outb(0x0e, iobase + 0x9c);
 
-	/*
-	 * Some devices do not let this value be accessed via PCI space
-	 * according to the old driver. In addition we must use the value
-	 * from FN 0 on the HPT374.
-	 */
-
-	if (chip_table == &hpt374) {
-		fcnt = hpt374_read_freq(dev);
-		if (fcnt == 0)
-			return -ENODEV;
-	} else
-		fcnt = inl(iobase + 0x90);
-
-	if ((fcnt >> 12) != 0xABCDE) {
-		int i;
-		u16 sr;
-		u32 total = 0;
-
-		dev_warn(&dev->dev, "BIOS has not set timing clocks\n");
-
-		/* This is the process the HPT371 BIOS is reported to use */
-		for (i = 0; i < 128; i++) {
-			pci_read_config_word(dev, 0x78, &sr);
-			total += sr & 0x1FF;
-			udelay(15);
-		}
-		fcnt = total / 128;
-	}
-	fcnt &= 0x1FF;
-
-	freq = (fcnt * chip_table->base) / 192;	/* Mhz */
-
-	/* Clamp to bands */
-	if (freq < 40)
-		freq = 33;
-	else if (freq < 45)
-		freq = 40;
-	else if (freq < 55)
-		freq = 50;
-	else
-		freq = 66;
+	freq = hpt37x_pci_clock(dev, chip_table->base);
+	if (!freq)
+		return -ENODEV;
 
 	/*
 	 *	Turn the frequency check into a band and then find a timing

From 75b4d58cb5bd7401d537f149e2fa268beaa2c375 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sun, 15 May 2022 23:41:25 +0300
Subject: [PATCH 04/16] ata: pata_hpt37x: merge hpt374_read_freq() to
 hpt37x_pci_clock()

With hpt374_read_freq() implemented as a separate function, there's
some code duplication going on, not to mention that this function is
named incorrectly: it returns the f_CNT register value saved by BIOS,
not the PCI clock frequency.
Folding hpt374_read_freq() into hpt37x_pci_clock() saves 20 bytes of
object code with x86_64 gcc 10.3.1...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/pata_hpt37x.c | 34 ++++++++++------------------------
 1 file changed, 10 insertions(+), 24 deletions(-)

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 38fc7f3d593c..d1a3d99d5d0a 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -23,7 +23,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"pata_hpt37x"
-#define DRV_VERSION	"0.6.29"
+#define DRV_VERSION	"0.6.30"
 
 struct hpt_clock {
 	u8	xfer_speed;
@@ -644,26 +644,6 @@ static int hpt37x_calibrate_dpll(struct pci_dev *dev)
 	return 0;
 }
 
-static u32 hpt374_read_freq(struct pci_dev *pdev)
-{
-	u32 freq;
-	unsigned long io_base = pci_resource_start(pdev, 4);
-
-	if (PCI_FUNC(pdev->devfn) & 1) {
-		struct pci_dev *pdev_0;
-
-		pdev_0 = pci_get_slot(pdev->bus, pdev->devfn - 1);
-		/* Someone hot plugged the controller on us ? */
-		if (pdev_0 == NULL)
-			return 0;
-		io_base = pci_resource_start(pdev_0, 4);
-		freq = inl(io_base + 0x90);
-		pci_dev_put(pdev_0);
-	} else
-		freq = inl(io_base + 0x90);
-	return freq;
-}
-
 static int hpt37x_pci_clock(struct pci_dev *pdev, unsigned int base)
 {
 	unsigned int freq;
@@ -674,10 +654,16 @@ static int hpt37x_pci_clock(struct pci_dev *pdev, unsigned int base)
 	 * according to the old driver. In addition we must use the value
 	 * from FN 0 on the HPT374.
 	 */
-	if (pdev->device == PCI_DEVICE_ID_TTI_HPT374) {
-		fcnt = hpt374_read_freq(pdev);
-		if (!fcnt)
+	if (pdev->device == PCI_DEVICE_ID_TTI_HPT374 &&
+	    (PCI_FUNC(pdev->devfn) & 1)) {
+		struct pci_dev *pdev_fn0;
+
+		pdev_fn0 = pci_get_slot(pdev->bus, pdev->devfn - 1);
+		/* Someone hot plugged the controller on us? */
+		if (!pdev_fn0)
 			return 0;
+		fcnt = inl(pci_resource_start(pdev_fn0, 4) + 0x90);
+		pci_dev_put(pdev_fn0);
 	} else	{
 		fcnt = inl(pci_resource_start(pdev, 4) + 0x90);
 	}

From 6cd379f75f424b874ea1f35e3c02fa4090246eaf Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sun, 15 May 2022 23:41:26 +0300
Subject: [PATCH 05/16] ata: pata_hpt3x2n: pass base DPLL frequency to
 hpt3x2n_pci_clock()

Currently, the base DPLL frequency is hardcoded in hpt3x2n_pci_clock().
Align with the updated 'pata_hpt37x' driver, where this frequency is a
parameter to hpt37x_pci_clock().

While at it, also do the following to align with the 'pata_hpt37x' driver:
- fix the 'freq' local variable's type;
- remove the 'iobase' local variable;
- extend the comment to the inl() call;
- move the 'total' local variable's declaration.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/pata_hpt3x2n.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index 1f6afd8ee29b..d1595e17dca2 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -24,7 +24,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"pata_hpt3x2n"
-#define DRV_VERSION	"0.3.18"
+#define DRV_VERSION	"0.3.19"
 
 enum {
 	PCI66		=	(1 << 1),
@@ -403,17 +403,20 @@ static int hpt3xn_calibrate_dpll(struct pci_dev *dev)
 	return 0;
 }
 
-static int hpt3x2n_pci_clock(struct pci_dev *pdev)
+static int hpt3x2n_pci_clock(struct pci_dev *pdev, unsigned int base)
 {
-	unsigned long freq;
+	unsigned int freq;
 	u32 fcnt;
-	unsigned long iobase = pci_resource_start(pdev, 4);
 
-	fcnt = inl(iobase + 0x90);	/* Not PCI readable for some chips */
+	/*
+	 * Some devices do not let this value be accessed via PCI space
+	 * according to the old driver.
+	 */
+	fcnt = inl(pci_resource_start(pdev, 4) + 0x90);
 	if ((fcnt >> 12) != 0xABCDE) {
+		u32 total = 0;
 		int i;
 		u16 sr;
-		u32 total = 0;
 
 		dev_warn(&pdev->dev, "BIOS clock data not set\n");
 
@@ -427,7 +430,7 @@ static int hpt3x2n_pci_clock(struct pci_dev *pdev)
 	}
 	fcnt &= 0x1FF;
 
-	freq = (fcnt * 77) / 192;
+	freq = (fcnt * base) / 192;	/* in MHz */
 
 	/* Clamp to bands */
 	if (freq < 40)
@@ -559,7 +562,7 @@ hpt372n:
 	 * 50 for UDMA100. Right now we always use 66
 	 */
 
-	pci_mhz = hpt3x2n_pci_clock(dev);
+	pci_mhz = hpt3x2n_pci_clock(dev, 77);
 
 	f_low = (pci_mhz * 48) / 66;	/* PCI Mhz for 66Mhz DPLL */
 	f_high = f_low + 2;		/* Tolerance */

From 79ad6a561958777d6d8ecfa66e51d09d35ec6450 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Fri, 13 May 2022 23:50:14 +0300
Subject: [PATCH 06/16] ata: libata-core: fix sloppy typing in
 ata_id_n_sectors()

The code multiplying the # of cylinders/heads/sectors in ata_id_n_sectors()
to get a disk capacity implicitly uses the *int* type for that calculation
and casting the result to 'u64' before returning ensues a sign extension.
Explicitly casting the 'u16' typed multipliers to 'u32' results in avoiding
a sign extension instruction and so in a more compact code...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-core.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 9601fa92950a..e3f1c3da5950 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1107,11 +1107,13 @@ static u64 ata_id_n_sectors(const u16 *id)
 			return ata_id_u32(id, ATA_ID_LBA_CAPACITY);
 	} else {
 		if (ata_id_current_chs_valid(id))
-			return id[ATA_ID_CUR_CYLS] * id[ATA_ID_CUR_HEADS] *
-			       id[ATA_ID_CUR_SECTORS];
+			return (u32)id[ATA_ID_CUR_CYLS] *
+			       (u32)id[ATA_ID_CUR_HEADS] *
+			       (u32)id[ATA_ID_CUR_SECTORS];
 		else
-			return id[ATA_ID_CYLS] * id[ATA_ID_HEADS] *
-			       id[ATA_ID_SECTORS];
+			return (u32)id[ATA_ID_CYLS] *
+			       (u32)id[ATA_ID_HEADS] *
+			       (u32)id[ATA_ID_SECTORS];
 	}
 }
 

From 5eb8deb4af56b120c152066ff43a0867267b264b Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Fri, 10 Jun 2022 00:06:54 +0300
Subject: [PATCH 07/16] ata: libata-core: get rid of *else* branches in
 ata_id_n_sectors()

Using *else* after *return* doesn't make much sense -- getting rid of such
*else* branches reduces the indentation levels and thus reduces # of LoC...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-core.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e3f1c3da5950..980328a4b896 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1103,18 +1103,16 @@ static u64 ata_id_n_sectors(const u16 *id)
 	if (ata_id_has_lba(id)) {
 		if (ata_id_has_lba48(id))
 			return ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
-		else
-			return ata_id_u32(id, ATA_ID_LBA_CAPACITY);
-	} else {
-		if (ata_id_current_chs_valid(id))
-			return (u32)id[ATA_ID_CUR_CYLS] *
-			       (u32)id[ATA_ID_CUR_HEADS] *
-			       (u32)id[ATA_ID_CUR_SECTORS];
-		else
-			return (u32)id[ATA_ID_CYLS] *
-			       (u32)id[ATA_ID_HEADS] *
-			       (u32)id[ATA_ID_SECTORS];
+
+		return ata_id_u32(id, ATA_ID_LBA_CAPACITY);
 	}
+
+	if (ata_id_current_chs_valid(id))
+		return (u32)id[ATA_ID_CUR_CYLS] * (u32)id[ATA_ID_CUR_HEADS] *
+		       (u32)id[ATA_ID_CUR_SECTORS];
+
+	return (u32)id[ATA_ID_CYLS] * (u32)id[ATA_ID_HEADS] *
+	       (u32)id[ATA_ID_SECTORS];
 }
 
 u64 ata_tf_to_lba48(const struct ata_taskfile *tf)

From f0a6d77b351c18c122fc1638ac9e58f5e0346f64 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Tue, 14 Jun 2022 22:51:47 +0300
Subject: [PATCH 08/16] ata: make transfer mode masks *unsigned int*

The packed transfer mode masks and also the {pio|mwdma|udma}_mask fields
of *struct*s ata_device and ata_port_info are declared as *unsigned long*
(which is a 64-bit type on 64-bit architectures) but actually the packed
masks occupy only 20 bits (7 PIO modes, 5 MWDMA modes, and 8 UDMA modes)
and the PIO/MWDMA/UDMA masks easily fit into just 8 bits each, so we can
safely use (always 32-bit) *unsigned int* variables instead.  This saves
745 bytes of object code in libata-core.o alone, not to mention LLDDs...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-acpi.c      |  8 +++---
 drivers/ata/libata-core.c      | 38 +++++++++++++-------------
 drivers/ata/pata_acpi.c        |  2 +-
 drivers/ata/pata_ali.c         |  2 +-
 drivers/ata/pata_amd.c         | 14 +++++-----
 drivers/ata/pata_hpt366.c      |  2 +-
 drivers/ata/pata_hpt37x.c      |  6 ++---
 drivers/ata/pata_hpt3x2n.c     |  2 +-
 drivers/ata/pata_pdc2027x.c    |  4 +--
 drivers/ata/pata_serverworks.c |  4 +--
 drivers/ata/pata_sis.c         |  2 +-
 drivers/ata/pata_via.c         |  2 +-
 include/linux/libata.h         | 49 +++++++++++++++++-----------------
 13 files changed, 67 insertions(+), 68 deletions(-)

diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 3d345d173556..61b4ccf88bf1 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -480,10 +480,10 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf)
  * RETURNS:
  * Determined xfermask.
  */
-unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev,
-				    const struct ata_acpi_gtm *gtm)
+unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev,
+				   const struct ata_acpi_gtm *gtm)
 {
-	unsigned long xfer_mask = 0;
+	unsigned int xfer_mask = 0;
 	unsigned int type;
 	int unit;
 	u8 mode;
@@ -525,7 +525,7 @@ int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm)
 	struct ata_device *dev;
 
 	ata_for_each_dev(dev, &ap->link, ENABLED) {
-		unsigned long xfer_mask, udma_mask;
+		unsigned int xfer_mask, udma_mask;
 
 		xfer_mask = ata_acpi_gtm_xfermask(dev, gtm);
 		ata_unpack_xfermask(xfer_mask, NULL, NULL, &udma_mask);
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 980328a4b896..035092184c08 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -93,7 +93,7 @@ struct ata_force_param {
 	const char	*name;
 	u8		cbl;
 	u8		spd_limit;
-	unsigned long	xfer_mask;
+	unsigned int	xfer_mask;
 	unsigned int	horkage_on;
 	unsigned int	horkage_off;
 	u16		lflags_on;
@@ -425,7 +425,7 @@ static void ata_force_xfermask(struct ata_device *dev)
 
 	for (i = ata_force_tbl_size - 1; i >= 0; i--) {
 		const struct ata_force_ent *fe = &ata_force_tbl[i];
-		unsigned long pio_mask, mwdma_mask, udma_mask;
+		unsigned int pio_mask, mwdma_mask, udma_mask;
 
 		if (fe->port != -1 && fe->port != dev->link->ap->print_id)
 			continue;
@@ -803,11 +803,11 @@ int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
  *	RETURNS:
  *	Packed xfer_mask.
  */
-unsigned long ata_pack_xfermask(unsigned long pio_mask,
-				unsigned long mwdma_mask,
-				unsigned long udma_mask)
+unsigned int ata_pack_xfermask(unsigned int pio_mask,
+			       unsigned int mwdma_mask,
+			       unsigned int udma_mask)
 {
-	return ((pio_mask << ATA_SHIFT_PIO) & ATA_MASK_PIO) |
+	return	((pio_mask << ATA_SHIFT_PIO) & ATA_MASK_PIO) |
 		((mwdma_mask << ATA_SHIFT_MWDMA) & ATA_MASK_MWDMA) |
 		((udma_mask << ATA_SHIFT_UDMA) & ATA_MASK_UDMA);
 }
@@ -823,8 +823,8 @@ EXPORT_SYMBOL_GPL(ata_pack_xfermask);
  *	Unpack @xfer_mask into @pio_mask, @mwdma_mask and @udma_mask.
  *	Any NULL destination masks will be ignored.
  */
-void ata_unpack_xfermask(unsigned long xfer_mask, unsigned long *pio_mask,
-			 unsigned long *mwdma_mask, unsigned long *udma_mask)
+void ata_unpack_xfermask(unsigned int xfer_mask, unsigned int *pio_mask,
+			 unsigned int *mwdma_mask, unsigned int *udma_mask)
 {
 	if (pio_mask)
 		*pio_mask = (xfer_mask & ATA_MASK_PIO) >> ATA_SHIFT_PIO;
@@ -857,7 +857,7 @@ static const struct ata_xfer_ent {
  *	RETURNS:
  *	Matching XFER_* value, 0xff if no match found.
  */
-u8 ata_xfer_mask2mode(unsigned long xfer_mask)
+u8 ata_xfer_mask2mode(unsigned int xfer_mask)
 {
 	int highbit = fls(xfer_mask) - 1;
 	const struct ata_xfer_ent *ent;
@@ -881,7 +881,7 @@ EXPORT_SYMBOL_GPL(ata_xfer_mask2mode);
  *	RETURNS:
  *	Matching xfer_mask, 0 if no match found.
  */
-unsigned long ata_xfer_mode2mask(u8 xfer_mode)
+unsigned int ata_xfer_mode2mask(u8 xfer_mode)
 {
 	const struct ata_xfer_ent *ent;
 
@@ -930,7 +930,7 @@ EXPORT_SYMBOL_GPL(ata_xfer_mode2shift);
  *	Constant C string representing highest speed listed in
  *	@mode_mask, or the constant C string "<n/a>".
  */
-const char *ata_mode_string(unsigned long xfer_mask)
+const char *ata_mode_string(unsigned int xfer_mask)
 {
 	static const char * const xfer_mode_str[] = {
 		"PIO0",
@@ -1383,9 +1383,9 @@ static inline void ata_dump_id(struct ata_device *dev, const u16 *id)
  *	RETURNS:
  *	Computed xfermask
  */
-unsigned long ata_id_xfermask(const u16 *id)
+unsigned int ata_id_xfermask(const u16 *id)
 {
-	unsigned long pio_mask, mwdma_mask, udma_mask;
+	unsigned int pio_mask, mwdma_mask, udma_mask;
 
 	/* Usual case. Word 53 indicates word 64 is valid */
 	if (id[ATA_ID_FIELD_VALID] & (1 << 1)) {
@@ -2534,7 +2534,7 @@ int ata_dev_configure(struct ata_device *dev)
 	struct ata_port *ap = dev->link->ap;
 	bool print_info = ata_dev_print_info(dev);
 	const u16 *id = dev->id;
-	unsigned long xfer_mask;
+	unsigned int xfer_mask;
 	unsigned int err_mask;
 	char revbuf[7];		/* XYZ-99\0 */
 	char fwrevbuf[ATA_ID_FW_REV_LEN+1];
@@ -3202,8 +3202,8 @@ u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle)
 int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel)
 {
 	char buf[32];
-	unsigned long orig_mask, xfer_mask;
-	unsigned long pio_mask, mwdma_mask, udma_mask;
+	unsigned int orig_mask, xfer_mask;
+	unsigned int pio_mask, mwdma_mask, udma_mask;
 	int quiet, highbit;
 
 	quiet = !!(sel & ATA_DNXFER_QUIET);
@@ -3381,7 +3381,7 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 
 	/* step 1: calculate xfer_mask */
 	ata_for_each_dev(dev, link, ENABLED) {
-		unsigned long pio_mask, dma_mask;
+		unsigned int pio_mask, dma_mask;
 		unsigned int mode_mask;
 
 		mode_mask = ATA_DMA_MASK_ATA;
@@ -4217,7 +4217,7 @@ static void ata_dev_xfermask(struct ata_device *dev)
 	struct ata_link *link = dev->link;
 	struct ata_port *ap = link->ap;
 	struct ata_host *host = ap->host;
-	unsigned long xfer_mask;
+	unsigned int xfer_mask;
 
 	/* controller modes available */
 	xfer_mask = ata_pack_xfermask(ap->pio_mask,
@@ -5776,7 +5776,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
 	/* set cable, sata_spd_limit and report */
 	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
-		unsigned long xfer_mask;
+		unsigned int xfer_mask;
 
 		/* set SATA cable type if still unset */
 		if (ap->cbl == ATA_CBL_NONE && (ap->flags & ATA_FLAG_SATA))
diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c
index ade4c3eee230..f8706ee427d2 100644
--- a/drivers/ata/pata_acpi.c
+++ b/drivers/ata/pata_acpi.c
@@ -97,7 +97,7 @@ static unsigned long pacpi_discover_modes(struct ata_port *ap, struct ata_device
  *	this case the list of discovered valid modes obtained by ACPI probing
  */
 
-static unsigned long pacpi_mode_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int pacpi_mode_filter(struct ata_device *adev, unsigned int mask)
 {
 	struct pata_acpi *acpi = adev->link->ap->private_data;
 	return mask & acpi->mask[adev->devno];
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 1b90cda27246..76ad0e73fe2a 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -115,7 +115,7 @@ static int ali_c2_cable_detect(struct ata_port *ap)
  *	fix that later on. Also ensure we do not do UDMA on WDC drives
  */
 
-static unsigned long ali_20_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int ali_20_filter(struct ata_device *adev, unsigned int mask)
 {
 	char model_num[ATA_ID_PROD_LEN + 1];
 	/* No DMA on anything but a disk for now */
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 154748cfcc79..f216f9d7b9ec 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -264,8 +264,8 @@ static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  * cached during driver attach and are consulted to select transfer
  * mode.
  */
-static unsigned long nv_mode_filter(struct ata_device *dev,
-				    unsigned long xfer_mask)
+static unsigned int nv_mode_filter(struct ata_device *dev,
+				   unsigned int xfer_mask)
 {
 	static const unsigned int udma_mask_map[] =
 		{ ATA_UDMA2, ATA_UDMA1, ATA_UDMA0, 0,
@@ -274,7 +274,7 @@ static unsigned long nv_mode_filter(struct ata_device *dev,
 	char acpi_str[32] = "";
 	u32 saved_udma, udma;
 	const struct ata_acpi_gtm *gtm;
-	unsigned long bios_limit = 0, acpi_limit = 0, limit;
+	unsigned int bios_limit = 0, acpi_limit = 0, limit;
 
 	/* find out what BIOS configured */
 	udma = saved_udma = (unsigned long)ap->host->private_data;
@@ -310,10 +310,10 @@ static unsigned long nv_mode_filter(struct ata_device *dev,
 	   cable detection result */
 	limit |= ata_pack_xfermask(ATA_PIO4, ATA_MWDMA2, ATA_UDMA2);
 
-	ata_port_dbg(ap, "nv_mode_filter: 0x%lx&0x%lx->0x%lx, "
-			"BIOS=0x%lx (0x%x) ACPI=0x%lx%s\n",
-			xfer_mask, limit, xfer_mask & limit, bios_limit,
-			saved_udma, acpi_limit, acpi_str);
+	ata_port_dbg(ap,
+		     "nv_mode_filter: 0x%x&0x%x->0x%x, BIOS=0x%x (0x%x) ACPI=0x%x%s\n",
+		     xfer_mask, limit, xfer_mask & limit, bios_limit,
+		     saved_udma, acpi_limit, acpi_str);
 
 	return xfer_mask & limit;
 }
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index c99e8f0708b3..7e441fb304d3 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -194,7 +194,7 @@ static int hpt_dma_blacklisted(const struct ata_device *dev, char *modestr,
  *	Block UDMA on devices that cause trouble with this controller.
  */
 
-static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int hpt366_filter(struct ata_device *adev, unsigned int mask)
 {
 	if (adev->class == ATA_DEV_ATA) {
 		if (hpt_dma_blacklisted(adev, "UDMA",  bad_ata33))
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index d1a3d99d5d0a..ce3c5eaa7e76 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -278,7 +278,7 @@ static const char * const bad_ata100_5[] = {
  *	Block UDMA on devices that cause trouble with this controller.
  */
 
-static unsigned long hpt370_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int hpt370_filter(struct ata_device *adev, unsigned int mask)
 {
 	if (adev->class == ATA_DEV_ATA) {
 		if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33))
@@ -297,7 +297,7 @@ static unsigned long hpt370_filter(struct ata_device *adev, unsigned long mask)
  *	Block UDMA on devices that cause trouble with this controller.
  */
 
-static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int hpt370a_filter(struct ata_device *adev, unsigned int mask)
 {
 	if (adev->class == ATA_DEV_ATA) {
 		if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5))
@@ -314,7 +314,7 @@ static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask)
  *	The Marvell bridge chips used on the HighPoint SATA cards do not seem
  *	to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
  */
-static unsigned long hpt372_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int hpt372_filter(struct ata_device *adev, unsigned int mask)
 {
 	if (ata_id_is_sata(adev->id))
 		mask &= ~((0xE << ATA_SHIFT_UDMA) | ATA_MASK_MWDMA);
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index d1595e17dca2..617c95522f43 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -113,7 +113,7 @@ static u32 hpt3x2n_find_mode(struct ata_port *ap, int speed)
  *	The Marvell bridge chips used on the HighPoint SATA cards do not seem
  *	to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
  */
-static unsigned long hpt372n_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int hpt372n_filter(struct ata_device *adev, unsigned int mask)
 {
 	if (ata_id_is_sata(adev->id))
 		mask &= ~((0xE << ATA_SHIFT_UDMA) | ATA_MASK_MWDMA);
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index 4fbb3eed8b0b..4191aa61c8e4 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -57,7 +57,7 @@ static int pdc2027x_prereset(struct ata_link *link, unsigned long deadline);
 static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev);
 static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
 static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc);
-static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long mask);
+static unsigned int pdc2027x_mode_filter(struct ata_device *adev, unsigned int mask);
 static int pdc2027x_cable_detect(struct ata_port *ap);
 static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed);
 
@@ -251,7 +251,7 @@ static int pdc2027x_prereset(struct ata_link *link, unsigned long deadline)
  *	Block UDMA on devices that cause trouble with this controller.
  */
 
-static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int pdc2027x_mode_filter(struct ata_device *adev, unsigned int mask)
 {
 	unsigned char model_num[ATA_ID_PROD_LEN + 1];
 	struct ata_device *pair = ata_dev_pair(adev);
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index e410fe44177f..c0bc4af0d196 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -150,7 +150,7 @@ static u8 serverworks_is_csb(struct pci_dev *pdev)
  *	bug we hit.
  */
 
-static unsigned long serverworks_osb4_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int serverworks_osb4_filter(struct ata_device *adev, unsigned int mask)
 {
 	if (adev->class == ATA_DEV_ATA)
 		mask &= ~ATA_MASK_UDMA;
@@ -166,7 +166,7 @@ static unsigned long serverworks_osb4_filter(struct ata_device *adev, unsigned l
  *	Check the blacklist and disable UDMA5 if matched
  */
 
-static unsigned long serverworks_csb_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int serverworks_csb_filter(struct ata_device *adev, unsigned int mask)
 {
 	const char *p;
 	char model_num[ATA_ID_PROD_LEN + 1];
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index b5b764e18adf..92e4cf05de2c 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -525,7 +525,7 @@ static void sis_133_set_dmamode (struct ata_port *ap, struct ata_device *adev)
  *	Block UDMA6 on devices that do not support it.
  */
 
-static unsigned long sis_133_mode_filter(struct ata_device *adev, unsigned long mask)
+static unsigned int sis_133_mode_filter(struct ata_device *adev, unsigned int mask)
 {
 	struct ata_port *ap = adev->link->ap;
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 215c02d4056a..34f00f389932 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -352,7 +352,7 @@ static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  *	one breed of Transcend SSD. Return the updated mask.
  */
 
-static unsigned long via_mode_filter(struct ata_device *dev, unsigned long mask)
+static unsigned int via_mode_filter(struct ata_device *dev, unsigned int mask)
 {
 	struct ata_host *host = dev->link->ap->host;
 	const struct via_isa_bridge *config = host->private_data;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 0f2a59c9c735..a8bc88b4fe07 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -275,7 +275,7 @@ enum {
 	PORT_DISABLED		= 2,
 
 	/* encoding various smaller bitmaps into a single
-	 * unsigned long bitmap
+	 * unsigned int bitmap
 	 */
 	ATA_NR_PIO_MODES	= 7,
 	ATA_NR_MWDMA_MODES	= 5,
@@ -426,12 +426,9 @@ enum {
 };
 
 enum ata_xfer_mask {
-	ATA_MASK_PIO		= ((1LU << ATA_NR_PIO_MODES) - 1)
-					<< ATA_SHIFT_PIO,
-	ATA_MASK_MWDMA		= ((1LU << ATA_NR_MWDMA_MODES) - 1)
-					<< ATA_SHIFT_MWDMA,
-	ATA_MASK_UDMA		= ((1LU << ATA_NR_UDMA_MODES) - 1)
-					<< ATA_SHIFT_UDMA,
+	ATA_MASK_PIO		= ((1U << ATA_NR_PIO_MODES) - 1) << ATA_SHIFT_PIO,
+	ATA_MASK_MWDMA		= ((1U << ATA_NR_MWDMA_MODES) - 1) << ATA_SHIFT_MWDMA,
+	ATA_MASK_UDMA		= ((1U << ATA_NR_UDMA_MODES) - 1) << ATA_SHIFT_UDMA,
 };
 
 enum hsm_task_states {
@@ -680,9 +677,9 @@ struct ata_device {
 	unsigned int		cdb_len;
 
 	/* per-dev xfer mask */
-	unsigned long		pio_mask;
-	unsigned long		mwdma_mask;
-	unsigned long		udma_mask;
+	unsigned int		pio_mask;
+	unsigned int		mwdma_mask;
+	unsigned int		udma_mask;
 
 	/* for CHS addressing */
 	u16			cylinders;	/* Number of cylinders */
@@ -885,7 +882,7 @@ struct ata_port_operations {
 	 * Configuration and exception handling
 	 */
 	int  (*cable_detect)(struct ata_port *ap);
-	unsigned long (*mode_filter)(struct ata_device *dev, unsigned long xfer_mask);
+	unsigned int (*mode_filter)(struct ata_device *dev, unsigned int xfer_mask);
 	void (*set_piomode)(struct ata_port *ap, struct ata_device *dev);
 	void (*set_dmamode)(struct ata_port *ap, struct ata_device *dev);
 	int  (*set_mode)(struct ata_link *link, struct ata_device **r_failed_dev);
@@ -981,9 +978,9 @@ struct ata_port_operations {
 struct ata_port_info {
 	unsigned long		flags;
 	unsigned long		link_flags;
-	unsigned long		pio_mask;
-	unsigned long		mwdma_mask;
-	unsigned long		udma_mask;
+	unsigned int		pio_mask;
+	unsigned int		mwdma_mask;
+	unsigned int		udma_mask;
 	struct ata_port_operations *port_ops;
 	void 			*private_data;
 };
@@ -1102,16 +1099,18 @@ extern void ata_msleep(struct ata_port *ap, unsigned int msecs);
 extern u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask,
 			u32 val, unsigned long interval, unsigned long timeout);
 extern int atapi_cmd_type(u8 opcode);
-extern unsigned long ata_pack_xfermask(unsigned long pio_mask,
-			unsigned long mwdma_mask, unsigned long udma_mask);
-extern void ata_unpack_xfermask(unsigned long xfer_mask,
-			unsigned long *pio_mask, unsigned long *mwdma_mask,
-			unsigned long *udma_mask);
-extern u8 ata_xfer_mask2mode(unsigned long xfer_mask);
-extern unsigned long ata_xfer_mode2mask(u8 xfer_mode);
+extern unsigned int ata_pack_xfermask(unsigned int pio_mask,
+				      unsigned int mwdma_mask,
+				      unsigned int udma_mask);
+extern void ata_unpack_xfermask(unsigned int xfer_mask,
+				unsigned int *pio_mask,
+				unsigned int *mwdma_mask,
+				unsigned int *udma_mask);
+extern u8 ata_xfer_mask2mode(unsigned int xfer_mask);
+extern unsigned int ata_xfer_mode2mask(u8 xfer_mode);
 extern int ata_xfer_mode2shift(u8 xfer_mode);
-extern const char *ata_mode_string(unsigned long xfer_mask);
-extern unsigned long ata_id_xfermask(const u16 *id);
+extern const char *ata_mode_string(unsigned int xfer_mask);
+extern unsigned int ata_id_xfermask(const u16 *id);
 extern int ata_std_qc_defer(struct ata_queued_cmd *qc);
 extern enum ata_completion_errors ata_noop_qc_prep(struct ata_queued_cmd *qc);
 extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
@@ -1283,8 +1282,8 @@ static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap)
 }
 int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm);
 int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm);
-unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev,
-				    const struct ata_acpi_gtm *gtm);
+unsigned int ata_acpi_gtm_xfermask(struct ata_device *dev,
+				   const struct ata_acpi_gtm *gtm);
 int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm);
 #else
 static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap)

From 4d6119f06ce14756777c4bb098fb4ad99a0a5d46 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Wed, 15 Jun 2022 22:38:20 +0300
Subject: [PATCH 09/16] ata: libata-core: make ata_exec_internal_sg() *static*

ata_exec_internal_sg() is only called by ata_exec_internal() further in
the same file, so we can make it *static* and remove its prototype from
drivers/ata/libata.h...

Suggested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-core.c | 8 ++++----
 drivers/ata/libata.h      | 4 ----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 035092184c08..4658aa9bfdc2 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1467,10 +1467,10 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
  *	RETURNS:
  *	Zero on success, AC_ERR_* mask on failure
  */
-unsigned ata_exec_internal_sg(struct ata_device *dev,
-			      struct ata_taskfile *tf, const u8 *cdb,
-			      int dma_dir, struct scatterlist *sgl,
-			      unsigned int n_elem, unsigned long timeout)
+static unsigned ata_exec_internal_sg(struct ata_device *dev,
+				     struct ata_taskfile *tf, const u8 *cdb,
+				     int dma_dir, struct scatterlist *sgl,
+				     unsigned int n_elem, unsigned long timeout)
 {
 	struct ata_link *link = dev->link;
 	struct ata_port *ap = link->ap;
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 926a7f41303d..1446a482835d 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -53,10 +53,6 @@ extern unsigned ata_exec_internal(struct ata_device *dev,
 				  struct ata_taskfile *tf, const u8 *cdb,
 				  int dma_dir, void *buf, unsigned int buflen,
 				  unsigned long timeout);
-extern unsigned ata_exec_internal_sg(struct ata_device *dev,
-				     struct ata_taskfile *tf, const u8 *cdb,
-				     int dma_dir, struct scatterlist *sg,
-				     unsigned int n_elem, unsigned long timeout);
 extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
 			  int (*check_ready)(struct ata_link *link));
 extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,

From afae461a3bfa314c0432ab6871ca91a167fcb8be Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Thu, 16 Jun 2022 23:51:48 +0300
Subject: [PATCH 10/16] ata: libata-eh: fix sloppy result type of
 ata_eh_nr_in_flight()

ata_eh_nr_in_flight() counts the # of the active tagged commands and
thus cannot return a negative value but the result type is nevertheless
int.  Switching it to unsigned int (along with the local variables
receiving the function's result) helps avoiding the sign extension
instructions when comparing with or assigning to unsigned long
ata_port::fastdrain_cnt and thus results in a more compact 64-bit
code.

Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.

[Damien]
Fixed commit message.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-eh.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 3307ed45fe4d..25586e16692d 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -802,11 +802,11 @@ void ata_port_wait_eh(struct ata_port *ap)
 }
 EXPORT_SYMBOL_GPL(ata_port_wait_eh);
 
-static int ata_eh_nr_in_flight(struct ata_port *ap)
+static unsigned int ata_eh_nr_in_flight(struct ata_port *ap)
 {
 	struct ata_queued_cmd *qc;
 	unsigned int tag;
-	int nr = 0;
+	unsigned int nr = 0;
 
 	/* count only non-internal commands */
 	ata_qc_for_each(ap, qc, tag) {
@@ -821,7 +821,7 @@ void ata_eh_fastdrain_timerfn(struct timer_list *t)
 {
 	struct ata_port *ap = from_timer(ap, t, fastdrain_timer);
 	unsigned long flags;
-	int cnt;
+	unsigned int cnt;
 
 	spin_lock_irqsave(ap->lock, flags);
 
@@ -870,7 +870,7 @@ void ata_eh_fastdrain_timerfn(struct timer_list *t)
  */
 static void ata_eh_set_pending(struct ata_port *ap, int fastdrain)
 {
-	int cnt;
+	unsigned int cnt;
 
 	/* already scheduled? */
 	if (ap->pflags & ATA_PFLAG_EH_PENDING)

From 2e0aee8f0a22c60a1ae0876f7233e70ad9d026b8 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Thu, 16 Jun 2022 23:51:49 +0300
Subject: [PATCH 11/16] ata: make ata_port::fastdrain_cnt *unsigned int*

*unsigned long* ata_port::fastdrain_cnt (64-bit value in a 64-bit kernel)
is always assigned from the 32-bit *unsigned int* variables, thus could
also be made just *unsigned int*...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 include/linux/libata.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/libata.h b/include/linux/libata.h
index a8bc88b4fe07..0269ff114f5a 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -847,7 +847,7 @@ struct ata_port {
 	enum ata_lpm_policy	target_lpm_policy;
 
 	struct timer_list	fastdrain_timer;
-	unsigned long		fastdrain_cnt;
+	unsigned int		fastdrain_cnt;
 
 	async_cookie_t		cookie;
 

From 61176eed36d3a91305df6417be74755703a7db27 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Wed, 15 Jun 2022 22:38:21 +0300
Subject: [PATCH 12/16] ata: libata-core: fix sloppy parameter type in
 ata_exec_internal[_sg]()

Make the 'timeout' parameter to ata_exec_internal_sg() *unsigned int* as
msecs_to_jiffies() that it calls takes just *unsigned int* for the time in
milliseconds. Then follow the suit with ata_exec_internal(), its only
caller; also fix up ata_dev_set_feature(), the only ata_exec_internal()'s
caller  that explicitly passes *unsigned long* variable for timeout...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-core.c | 6 +++---
 drivers/ata/libata.h      | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 4658aa9bfdc2..826d41f341e4 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1470,7 +1470,7 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
 static unsigned ata_exec_internal_sg(struct ata_device *dev,
 				     struct ata_taskfile *tf, const u8 *cdb,
 				     int dma_dir, struct scatterlist *sgl,
-				     unsigned int n_elem, unsigned long timeout)
+				     unsigned int n_elem, unsigned int timeout)
 {
 	struct ata_link *link = dev->link;
 	struct ata_port *ap = link->ap;
@@ -1645,7 +1645,7 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev,
 unsigned ata_exec_internal(struct ata_device *dev,
 			   struct ata_taskfile *tf, const u8 *cdb,
 			   int dma_dir, void *buf, unsigned int buflen,
-			   unsigned long timeout)
+			   unsigned int timeout)
 {
 	struct scatterlist *psg = NULL, sg;
 	unsigned int n_elem = 0;
@@ -4342,7 +4342,7 @@ unsigned int ata_dev_set_feature(struct ata_device *dev, u8 enable, u8 feature)
 {
 	struct ata_taskfile tf;
 	unsigned int err_mask;
-	unsigned long timeout = 0;
+	unsigned int timeout = 0;
 
 	/* set up set-features taskfile */
 	ata_dev_dbg(dev, "set features - SATA features\n");
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 1446a482835d..8292d4cdc22b 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -52,7 +52,7 @@ extern u64 ata_tf_read_block(const struct ata_taskfile *tf,
 extern unsigned ata_exec_internal(struct ata_device *dev,
 				  struct ata_taskfile *tf, const u8 *cdb,
 				  int dma_dir, void *buf, unsigned int buflen,
-				  unsigned long timeout);
+				  unsigned int timeout);
 extern int ata_wait_ready(struct ata_link *link, unsigned long deadline,
 			  int (*check_ready)(struct ata_link *link));
 extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,

From e06233f9372c396191327790bd38999730869e01 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sat, 18 Jun 2022 23:38:10 +0300
Subject: [PATCH 13/16] ata: libata-eh: fix sloppy result type of
 ata_internal_cmd_timeout()

ata_internal_cmd_timeout() returns *unsigned long* timeout in ms, however
ata_exec_internal_sg() passes that timeout to msecs_to_jiffies() that takes
just *unsigned int*.  Change ata_internal_cmd_timeout()'s result type to
*unsigned int* as well, also updating the *struct* ata_eh_cmd_timeout_ent
and the command timeout tables -- all timeouts fit into *unsigned int* but
we have to change ULONG_MAX to UINT_MAX...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-eh.c | 22 +++++++++++-----------
 drivers/ata/libata.h    |  2 +-
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 25586e16692d..ef4508d72c02 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -86,36 +86,36 @@ static const unsigned long ata_eh_reset_timeouts[] = {
 	ULONG_MAX, /* > 1 min has elapsed, give up */
 };
 
-static const unsigned long ata_eh_identify_timeouts[] = {
+static const unsigned int ata_eh_identify_timeouts[] = {
 	 5000,	/* covers > 99% of successes and not too boring on failures */
 	10000,  /* combined time till here is enough even for media access */
 	30000,	/* for true idiots */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
-static const unsigned long ata_eh_revalidate_timeouts[] = {
+static const unsigned int ata_eh_revalidate_timeouts[] = {
 	15000,	/* Some drives are slow to read log pages when waking-up */
 	15000,  /* combined time till here is enough even for media access */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
-static const unsigned long ata_eh_flush_timeouts[] = {
+static const unsigned int ata_eh_flush_timeouts[] = {
 	15000,	/* be generous with flush */
 	15000,  /* ditto */
 	30000,	/* and even more generous */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
-static const unsigned long ata_eh_other_timeouts[] = {
+static const unsigned int ata_eh_other_timeouts[] = {
 	 5000,	/* same rationale as identify timeout */
 	10000,	/* ditto */
 	/* but no merciful 30sec for other commands, it just isn't worth it */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
 struct ata_eh_cmd_timeout_ent {
 	const u8		*commands;
-	const unsigned long	*timeouts;
+	const unsigned int	*timeouts;
 };
 
 /* The following table determines timeouts to use for EH internal
@@ -326,7 +326,7 @@ static int ata_lookup_timeout_table(u8 cmd)
  *	RETURNS:
  *	Determined timeout.
  */
-unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd)
+unsigned int ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd)
 {
 	struct ata_eh_context *ehc = &dev->link->eh_context;
 	int ent = ata_lookup_timeout_table(cmd);
@@ -361,7 +361,7 @@ void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd)
 		return;
 
 	idx = ehc->cmd_timeout_idx[dev->devno][ent];
-	if (ata_eh_cmd_timeout_table[ent].timeouts[idx + 1] != ULONG_MAX)
+	if (ata_eh_cmd_timeout_table[ent].timeouts[idx + 1] != UINT_MAX)
 		ehc->cmd_timeout_idx[dev->devno][ent]++;
 }
 
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 8292d4cdc22b..98bc8649c63f 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -132,7 +132,7 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev);
 int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev);
 
 /* libata-eh.c */
-extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
+extern unsigned int ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
 extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
 extern void ata_eh_acquire(struct ata_port *ap);
 extern void ata_eh_release(struct ata_port *ap);

From 2b5960a0e33b5449712abc9a1b144d7ac874e47c Mon Sep 17 00:00:00 2001
From: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Date: Mon, 20 Jun 2022 09:50:27 +0900
Subject: [PATCH 14/16] ata: pata_macio: Fix compilation warning

Change the debug print format for the PIO, MWDMA and UDMA masks from
long to int to match the new type used for these fields in struct
ata_port_info.

Fixes: f0a6d77b351c ("ata: make transfer mode masks *unsigned int*")
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/pata_macio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index 42798402cf63..bfea2be2959a 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -1028,7 +1028,7 @@ static void pmac_macio_calc_timing_masks(struct pata_macio_priv *priv,
 		}
 		i++;
 	}
-	dev_dbg(priv->dev, "Supported masks: PIO=%lx, MWDMA=%lx, UDMA=%lx\n",
+	dev_dbg(priv->dev, "Supported masks: PIO=%x, MWDMA=%x, UDMA=%x\n",
 		pinfo->pio_mask, pinfo->mwdma_mask, pinfo->udma_mask);
 }
 

From 0184898dd14d53e81cc439b6735260f19750e3c1 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Fri, 24 Jun 2022 23:39:44 +0300
Subject: [PATCH 15/16] ata: libata-scsi: fix result type of ata_ioc32()

While ata_ioc32() returns 'int', its result gets assigned to and compared
with the 'unsigned long' variable 'val' in ata_sas_scsi_ioctl(), its only
caller, which implies a problematic implicit cast (with sign extension).
Fix this by returning 'bool' instead -- the implicit cast then implies
zero extension which is OK.  Note that actually the object code doesn't
change because ata_ioc32() is always inlined -- I can see the expected
code changes with 'noinline'...

Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/libata-scsi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 86dbb1cdfabd..9b999c0e8c37 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -539,13 +539,13 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg)
 	return rc;
 }
 
-static int ata_ioc32(struct ata_port *ap)
+static bool ata_ioc32(struct ata_port *ap)
 {
 	if (ap->flags & ATA_FLAG_PIO_DMA)
-		return 1;
+		return true;
 	if (ap->pflags & ATA_PFLAG_PIO32)
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 /*

From b3b2bec9646eb1d3f43c85f6d0d2211d6f8af42b Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 31 Jul 2022 22:49:06 +0200
Subject: [PATCH 16/16] ata: sata_mv: Fixes expected number of resources now
 IRQs are gone

The commit a1a2b7125e10 ("of/platform: Drop static setup of IRQ
resource from DT core") stopped IRQ resources being available as
platform resources. This broke the sanity check for the expected
number of resources in the Marvell SATA driver which expected two
resources, the IO memory and the interrupt.

Change the sanity check to only expect the IO memory.

Cc: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Fixes: a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from DT core")
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/ata/sata_mv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index de5bd02cad44..e3cff01201b8 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4057,7 +4057,7 @@ static int mv_platform_probe(struct platform_device *pdev)
 	/*
 	 * Simple resource validation ..
 	 */
-	if (unlikely(pdev->num_resources != 2)) {
+	if (unlikely(pdev->num_resources != 1)) {
 		dev_err(&pdev->dev, "invalid number of resources\n");
 		return -EINVAL;
 	}