Use dev->ap where possible and eliminate superflous @ap from functions
and structures.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/ahci.c | 2 -
drivers/scsi/libata-core.c | 160 +++++++++++++++++++++-----------------------
drivers/scsi/libata-scsi.c | 40 +++++------
drivers/scsi/libata.h | 11 +--
include/linux/libata.h | 21 ++----
5 files changed, 106 insertions(+), 128 deletions(-)
350ae14b3a5639351348cb30b2ddd50022d6bdab
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index c2298fb..f6e4c8e 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -597,7 +597,7 @@ static int ahci_softreset(struct ata_por
/* restart engine */
ahci_start_engine(ap);
- ata_tf_init(ap, &tf, 0);
+ ata_tf_init(ap->device, &tf);
fis = pp->cmd_tbl;
/* issue the first D2H Register FIS */
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 38a9833..8eee5af 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -61,13 +61,10 @@
#include "libata.h"
-static unsigned int ata_dev_init_params(struct ata_port *ap,
- struct ata_device *dev,
- u16 heads,
- u16 sectors);
-static unsigned int ata_dev_set_xfermode(struct ata_port *ap,
- struct ata_device *dev);
-static void ata_dev_xfermask(struct ata_port *ap, struct ata_device *dev);
+static unsigned int ata_dev_init_params(struct ata_device *dev,
+ u16 heads, u16 sectors);
+static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
+static void ata_dev_xfermask(struct ata_device *dev);
static unsigned int ata_unique_id = 1;
static struct workqueue_struct *ata_wq;
@@ -412,11 +409,11 @@ static const char *sata_spd_string(unsig
return spd_str[spd - 1];
}
-void ata_dev_disable(struct ata_port *ap, struct ata_device *dev)
+void ata_dev_disable(struct ata_device *dev)
{
if (ata_dev_enabled(dev)) {
printk(KERN_WARNING "ata%u: dev %u disabled\n",
- ap->id, dev->devno);
+ dev->ap->id, dev->devno);
dev->class++;
}
}
@@ -960,7 +957,6 @@ void ata_qc_complete_internal(struct ata
/**
* ata_exec_internal - execute libata internal command
- * @ap: Port to which the command is sent
* @dev: Device to which the command is sent
* @tf: Taskfile registers for the command and the result
* @cdb: CDB for packet command
@@ -978,10 +974,11 @@ void ata_qc_complete_internal(struct ata
* None. Should be called with kernel context, might sleep.
*/
-unsigned ata_exec_internal(struct ata_port *ap, 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)
{
+ struct ata_port *ap = dev->ap;
u8 command = tf->command;
struct ata_queued_cmd *qc;
DECLARE_COMPLETION(wait);
@@ -990,7 +987,7 @@ unsigned ata_exec_internal(struct ata_po
spin_lock_irqsave(&ap->host_set->lock, flags);
- qc = ata_qc_new_init(ap, dev);
+ qc = ata_qc_new_init(dev);
BUG_ON(qc == NULL);
qc->tf = *tf;
@@ -1095,7 +1092,6 @@ unsigned int ata_pio_need_iordy(const st
/**
* ata_dev_read_id - Read ID data from the specified device
- * @ap: port on which target device resides
* @dev: target device
* @p_class: pointer to class of the target device (may be changed)
* @post_reset: is this read ID post-reset?
@@ -1112,9 +1108,10 @@ unsigned int ata_pio_need_iordy(const st
* RETURNS:
* 0 on success, -errno otherwise.
*/
-static int ata_dev_read_id(struct ata_port *ap, struct ata_device *dev,
- unsigned int *p_class, int post_reset, u16 *id)
+static int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
+ int post_reset, u16 *id)
{
+ struct ata_port *ap = dev->ap;
unsigned int class = *p_class;
struct ata_taskfile tf;
unsigned int err_mask = 0;
@@ -1126,7 +1123,7 @@ static int ata_dev_read_id(struct ata_po
ata_dev_select(ap, dev->devno, 1, 1); /* select device 0/1 */
retry:
- ata_tf_init(ap, &tf, dev->devno);
+ ata_tf_init(dev, &tf);
switch (class) {
case ATA_DEV_ATA:
@@ -1143,7 +1140,7 @@ static int ata_dev_read_id(struct ata_po
tf.protocol = ATA_PROT_PIO;
- err_mask = ata_exec_internal(ap, dev, &tf, NULL, DMA_FROM_DEVICE,
+ err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
id, sizeof(id[0]) * ATA_ID_WORDS);
if (err_mask) {
rc = -EIO;
@@ -1170,7 +1167,7 @@ static int ata_dev_read_id(struct ata_po
* Some drives were very specific about that exact sequence.
*/
if (ata_id_major_version(id) < 4 || !ata_id_has_lba(id)) {
- err_mask = ata_dev_init_params(ap, dev, id[3], id[6]);
+ err_mask = ata_dev_init_params(dev, id[3], id[6]);
if (err_mask) {
rc = -EIO;
reason = "INIT_DEV_PARAMS failed";
@@ -1195,15 +1192,13 @@ static int ata_dev_read_id(struct ata_po
return rc;
}
-static inline u8 ata_dev_knobble(const struct ata_port *ap,
- struct ata_device *dev)
+static inline u8 ata_dev_knobble(struct ata_device *dev)
{
- return ((ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(dev->id)));
+ return ((dev->ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(dev->id)));
}
/**
* ata_dev_configure - Configure the specified ATA/ATAPI device
- * @ap: Port on which target device resides
* @dev: Target device to configure
* @print_info: Enable device info printout
*
@@ -1216,9 +1211,9 @@ static inline u8 ata_dev_knobble(const s
* RETURNS:
* 0 on success, -errno otherwise
*/
-static int ata_dev_configure(struct ata_port *ap, struct ata_device *dev,
- int print_info)
+static int ata_dev_configure(struct ata_device *dev, int print_info)
{
+ struct ata_port *ap = dev->ap;
const u16 *id = dev->id;
unsigned int xfer_mask;
int i, rc;
@@ -1331,7 +1326,7 @@ static int ata_dev_configure(struct ata_
ap->device[i].cdb_len);
/* limit bridge transfers to udma5, 200 sectors */
- if (ata_dev_knobble(ap, dev)) {
+ if (ata_dev_knobble(dev)) {
if (print_info)
printk(KERN_INFO "ata%u(%u): applying bridge limits\n",
ap->id, dev->devno);
@@ -1416,11 +1411,11 @@ static int ata_bus_probe(struct ata_port
if (!ata_dev_enabled(dev))
continue;
- rc = ata_dev_read_id(ap, dev, &dev->class, 1, dev->id);
+ rc = ata_dev_read_id(dev, &dev->class, 1, dev->id);
if (rc)
goto fail;
- rc = ata_dev_configure(ap, dev, 1);
+ rc = ata_dev_configure(dev, 1);
if (rc)
goto fail;
}
@@ -1453,13 +1448,13 @@ static int ata_bus_probe(struct ata_port
default:
tries[dev->devno]--;
if (down_xfermask &&
- ata_down_xfermask_limit(ap, dev, tries[dev->devno] == 1))
+ ata_down_xfermask_limit(dev, tries[dev->devno] == 1))
tries[dev->devno] = 0;
}
if (!tries[dev->devno]) {
- ata_down_xfermask_limit(ap, dev, 1);
- ata_dev_disable(ap, dev);
+ ata_down_xfermask_limit(dev, 1);
+ ata_dev_disable(dev);
}
goto retry;
@@ -1586,15 +1581,15 @@ void sata_phy_reset(struct ata_port *ap)
/**
* ata_dev_pair - return other device on cable
- * @ap: port
* @adev: device
*
* Obtain the other device on the same cable, or if none is
* present NULL is returned
*/
-struct ata_device *ata_dev_pair(struct ata_port *ap, struct ata_device *adev)
+struct ata_device *ata_dev_pair(struct ata_device *adev)
{
+ struct ata_port *ap = adev->ap;
struct ata_device *pair = &ap->device[1 - adev->devno];
if (!ata_dev_enabled(pair))
return NULL;
@@ -1885,7 +1880,6 @@ int ata_timing_compute(struct ata_device
/**
* ata_down_xfermask_limit - adjust dev xfer masks downward
- * @ap: Port associated with device @dev
* @dev: Device to adjust xfer masks
* @force_pio0: Force PIO0
*
@@ -1899,9 +1893,9 @@ int ata_timing_compute(struct ata_device
* RETURNS:
* 0 on success, negative errno on failure
*/
-int ata_down_xfermask_limit(struct ata_port *ap, struct ata_device *dev,
- int force_pio0)
+int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0)
{
+ struct ata_port *ap = dev->ap;
unsigned long xfer_mask;
int highbit;
@@ -1933,8 +1927,9 @@ int ata_down_xfermask_limit(struct ata_p
return -EINVAL;
}
-static int ata_dev_set_mode(struct ata_port *ap, struct ata_device *dev)
+static int ata_dev_set_mode(struct ata_device *dev)
{
+ struct ata_port *ap = dev->ap;
unsigned int err_mask;
int rc;
@@ -1942,7 +1937,7 @@ static int ata_dev_set_mode(struct ata_p
if (dev->xfer_shift == ATA_SHIFT_PIO)
dev->flags |= ATA_DFLAG_PIO;
- err_mask = ata_dev_set_xfermode(ap, dev);
+ err_mask = ata_dev_set_xfermode(dev);
if (err_mask) {
printk(KERN_ERR
"ata%u: failed to set xfermode (err_mask=0x%x)\n",
@@ -1950,7 +1945,7 @@ static int ata_dev_set_mode(struct ata_p
return -EIO;
}
- rc = ata_dev_revalidate(ap, dev, 0);
+ rc = ata_dev_revalidate(dev, 0);
if (rc)
return rc;
@@ -2006,7 +2001,7 @@ int ata_set_mode(struct ata_port *ap, st
if (!ata_dev_enabled(dev))
continue;
- ata_dev_xfermask(ap, dev);
+ ata_dev_xfermask(dev);
pio_mask = ata_pack_xfermask(dev->pio_mask, 0, 0);
dma_mask = ata_pack_xfermask(0, dev->mwdma_mask, dev->udma_mask);
@@ -2059,7 +2054,7 @@ int ata_set_mode(struct ata_port *ap, st
if (!ata_dev_enabled(dev))
continue;
- rc = ata_dev_set_mode(ap, dev);
+ rc = ata_dev_set_mode(dev);
if (rc)
goto out;
}
@@ -2711,7 +2706,6 @@ int ata_drive_probe_reset(struct ata_por
/**
* ata_dev_same_device - Determine whether new ID matches configured device
- * @ap: port on which the device to compare against resides
* @dev: device to compare against
* @new_class: class of the new device
* @new_id: IDENTIFY page of the new device
@@ -2726,9 +2720,10 @@ int ata_drive_probe_reset(struct ata_por
* RETURNS:
* 1 if @dev matches @new_class and @new_id, 0 otherwise.
*/
-static int ata_dev_same_device(struct ata_port *ap, struct ata_device *dev,
- unsigned int new_class, const u16 *new_id)
+static int ata_dev_same_device(struct ata_device *dev, unsigned int new_class,
+ const u16 *new_id)
{
+ struct ata_port *ap = dev->ap;
const u16 *old_id = dev->id;
unsigned char model[2][41], serial[2][21];
u64 new_n_sectors;
@@ -2773,7 +2768,6 @@ static int ata_dev_same_device(struct at
/**
* ata_dev_revalidate - Revalidate ATA device
- * @ap: port on which the device to revalidate resides
* @dev: device to revalidate
* @post_reset: is this revalidation after reset?
*
@@ -2786,9 +2780,9 @@ static int ata_dev_same_device(struct at
* RETURNS:
* 0 on success, negative errno otherwise
*/
-int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev,
- int post_reset)
+int ata_dev_revalidate(struct ata_device *dev, int post_reset)
{
+ struct ata_port *ap = dev->ap;
unsigned int class = dev->class;
u16 *id = (void *)ap->sector_buf;
int rc;
@@ -2799,12 +2793,12 @@ int ata_dev_revalidate(struct ata_port *
}
/* read ID data */
- rc = ata_dev_read_id(ap, dev, &class, post_reset, id);
+ rc = ata_dev_read_id(dev, &class, post_reset, id);
if (rc)
goto fail;
/* is the device still there? */
- if (!ata_dev_same_device(ap, dev, class, id)) {
+ if (!ata_dev_same_device(dev, class, id)) {
rc = -ENODEV;
goto fail;
}
@@ -2812,7 +2806,7 @@ int ata_dev_revalidate(struct ata_port *
memcpy(dev->id, id, sizeof(id[0]) * ATA_ID_WORDS);
/* configure device according to the new ID */
- rc = ata_dev_configure(ap, dev, 0);
+ rc = ata_dev_configure(dev, 0);
if (rc == 0)
return 0;
@@ -2894,7 +2888,6 @@ static int ata_dma_blacklisted(const str
/**
* ata_dev_xfermask - Compute supported xfermask of the given device
- * @ap: Port on which the device to compute xfermask for resides
* @dev: Device to compute xfermask for
*
* Compute supported xfermask of @dev and store it in
@@ -2909,8 +2902,9 @@ static int ata_dma_blacklisted(const str
* LOCKING:
* None.
*/
-static void ata_dev_xfermask(struct ata_port *ap, struct ata_device *dev)
+static void ata_dev_xfermask(struct ata_device *dev)
{
+ struct ata_port *ap = dev->ap;
struct ata_host_set *hs = ap->host_set;
unsigned long xfer_mask;
int i;
@@ -2963,7 +2957,6 @@ static void ata_dev_xfermask(struct ata_
/**
* ata_dev_set_xfermode - Issue SET FEATURES - XFER MODE command
- * @ap: Port associated with device @dev
* @dev: Device to which command will be sent
*
* Issue SET FEATURES - XFER MODE command to device @dev
@@ -2976,8 +2969,7 @@ static void ata_dev_xfermask(struct ata_
* 0 on success, AC_ERR_* mask otherwise.
*/
-static unsigned int ata_dev_set_xfermode(struct ata_port *ap,
- struct ata_device *dev)
+static unsigned int ata_dev_set_xfermode(struct ata_device *dev)
{
struct ata_taskfile tf;
unsigned int err_mask;
@@ -2985,14 +2977,14 @@ static unsigned int ata_dev_set_xfermode
/* set up set-features taskfile */
DPRINTK("set features - xfer mode\n");
- ata_tf_init(ap, &tf, dev->devno);
+ ata_tf_init(dev, &tf);
tf.command = ATA_CMD_SET_FEATURES;
tf.feature = SETFEATURES_XFER;
tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
tf.protocol = ATA_PROT_NODATA;
tf.nsect = dev->xfer_mode;
- err_mask = ata_exec_internal(ap, dev, &tf, NULL, DMA_NONE, NULL, 0);
+ err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
DPRINTK("EXIT, err_mask=%x\n", err_mask);
return err_mask;
@@ -3000,8 +2992,9 @@ static unsigned int ata_dev_set_xfermode
/**
* ata_dev_init_params - Issue INIT DEV PARAMS command
- * @ap: Port associated with device @dev
* @dev: Device to which command will be sent
+ * @heads: Number of heads
+ * @sectors: Number of sectors
*
* LOCKING:
* Kernel thread context (may sleep)
@@ -3009,11 +3002,8 @@ static unsigned int ata_dev_set_xfermode
* RETURNS:
* 0 on success, AC_ERR_* mask otherwise.
*/
-
-static unsigned int ata_dev_init_params(struct ata_port *ap,
- struct ata_device *dev,
- u16 heads,
- u16 sectors)
+static unsigned int ata_dev_init_params(struct ata_device *dev,
+ u16 heads, u16 sectors)
{
struct ata_taskfile tf;
unsigned int err_mask;
@@ -3025,14 +3015,14 @@ static unsigned int ata_dev_init_params(
/* set up init dev params taskfile */
DPRINTK("init dev params \n");
- ata_tf_init(ap, &tf, dev->devno);
+ ata_tf_init(dev, &tf);
tf.command = ATA_CMD_INIT_DEV_PARAMS;
tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
tf.protocol = ATA_PROT_NODATA;
tf.nsect = sectors;
tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */
- err_mask = ata_exec_internal(ap, dev, &tf, NULL, DMA_NONE, NULL, 0);
+ err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
DPRINTK("EXIT, err_mask=%x\n", err_mask);
return err_mask;
@@ -4044,16 +4034,15 @@ static struct ata_queued_cmd *ata_qc_new
/**
* ata_qc_new_init - Request an available ATA command, and initialize it
- * @ap: Port associated with device @dev
* @dev: Device from whom we request an available command structure
*
* LOCKING:
* None.
*/
-struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
- struct ata_device *dev)
+struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev)
{
+ struct ata_port *ap = dev->ap;
struct ata_queued_cmd *qc;
qc = ata_qc_new(ap);
@@ -4519,19 +4508,18 @@ int ata_port_offline(struct ata_port *ap
* Execute a 'simple' command, that only consists of the opcode 'cmd' itself,
* without filling any other registers
*/
-static int ata_do_simple_cmd(struct ata_port *ap, struct ata_device *dev,
- u8 cmd)
+static int ata_do_simple_cmd(struct ata_device *dev, u8 cmd)
{
struct ata_taskfile tf;
int err;
- ata_tf_init(ap, &tf, dev->devno);
+ ata_tf_init(dev, &tf);
tf.command = cmd;
tf.flags |= ATA_TFLAG_DEVICE;
tf.protocol = ATA_PROT_NODATA;
- err = ata_exec_internal(ap, dev, &tf, NULL, DMA_NONE, NULL, 0);
+ err = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
if (err)
printk(KERN_ERR "%s: ata command failed: %d\n",
__FUNCTION__, err);
@@ -4539,7 +4527,7 @@ static int ata_do_simple_cmd(struct ata_
return err;
}
-static int ata_flush_cache(struct ata_port *ap, struct ata_device *dev)
+static int ata_flush_cache(struct ata_device *dev)
{
u8 cmd;
@@ -4551,22 +4539,21 @@ static int ata_flush_cache(struct ata_po
else
cmd = ATA_CMD_FLUSH;
- return ata_do_simple_cmd(ap, dev, cmd);
+ return ata_do_simple_cmd(dev, cmd);
}
-static int ata_standby_drive(struct ata_port *ap, struct ata_device *dev)
+static int ata_standby_drive(struct ata_device *dev)
{
- return ata_do_simple_cmd(ap, dev, ATA_CMD_STANDBYNOW1);
+ return ata_do_simple_cmd(dev, ATA_CMD_STANDBYNOW1);
}
-static int ata_start_drive(struct ata_port *ap, struct ata_device *dev)
+static int ata_start_drive(struct ata_device *dev)
{
- return ata_do_simple_cmd(ap, dev, ATA_CMD_IDLEIMMEDIATE);
+ return ata_do_simple_cmd(dev, ATA_CMD_IDLEIMMEDIATE);
}
/**
* ata_device_resume - wakeup a previously suspended devices
- * @ap: port the device is connected to
* @dev: the device to resume
*
* Kick the drive back into action, by sending it an idle immediate
@@ -4574,39 +4561,42 @@ static int ata_start_drive(struct ata_po
* and host.
*
*/
-int ata_device_resume(struct ata_port *ap, struct ata_device *dev)
+int ata_device_resume(struct ata_device *dev)
{
+ struct ata_port *ap = dev->ap;
+
if (ap->flags & ATA_FLAG_SUSPENDED) {
struct ata_device *failed_dev;
ap->flags &= ~ATA_FLAG_SUSPENDED;
while (ata_set_mode(ap, &failed_dev))
- ata_dev_disable(ap, failed_dev);
+ ata_dev_disable(failed_dev);
}
if (!ata_dev_enabled(dev))
return 0;
if (dev->class == ATA_DEV_ATA)
- ata_start_drive(ap, dev);
+ ata_start_drive(dev);
return 0;
}
/**
* ata_device_suspend - prepare a device for suspend
- * @ap: port the device is connected to
* @dev: the device to suspend
*
* Flush the cache on the drive, if appropriate, then issue a
* standbynow command.
*/
-int ata_device_suspend(struct ata_port *ap, struct ata_device *dev, pm_message_t state)
+int ata_device_suspend(struct ata_device *dev, pm_message_t state)
{
+ struct ata_port *ap = dev->ap;
+
if (!ata_dev_enabled(dev))
return 0;
if (dev->class == ATA_DEV_ATA)
- ata_flush_cache(ap, dev);
+ ata_flush_cache(dev);
if (state.event != PM_EVENT_FREEZE)
- ata_standby_drive(ap, dev);
+ ata_standby_drive(dev);
ap->flags |= ATA_FLAG_SUSPENDED;
return 0;
}
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index ce90b63..fcbf64e 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -302,7 +302,6 @@ int ata_scsi_ioctl(struct scsi_device *s
/**
* ata_scsi_qc_new - acquire new ata_queued_cmd reference
- * @ap: ATA port to which the new command is attached
* @dev: ATA device to which the new command is attached
* @cmd: SCSI command that originated this ATA command
* @done: SCSI command completion function
@@ -321,14 +320,13 @@ int ata_scsi_ioctl(struct scsi_device *s
* RETURNS:
* Command allocated, or %NULL if none available.
*/
-struct ata_queued_cmd *ata_scsi_qc_new(struct ata_port *ap,
- struct ata_device *dev,
+struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *))
{
struct ata_queued_cmd *qc;
- qc = ata_qc_new_init(ap, dev);
+ qc = ata_qc_new_init(dev);
if (qc) {
qc->scsicmd = cmd;
qc->scsidone = done;
@@ -398,7 +396,7 @@ int ata_scsi_device_resume(struct scsi_d
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = &ap->device[sdev->id];
- return ata_device_resume(ap, dev);
+ return ata_device_resume(dev);
}
int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state)
@@ -406,7 +404,7 @@ int ata_scsi_device_suspend(struct scsi_
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = &ap->device[sdev->id];
- return ata_device_suspend(ap, dev, state);
+ return ata_device_suspend(dev, state);
}
/**
@@ -1224,7 +1222,6 @@ static void ata_scsi_qc_complete(struct
/**
* ata_scsi_translate - Translate then issue SCSI command to ATA device
- * @ap: ATA port to which the command is addressed
* @dev: ATA device to which the command is addressed
* @cmd: SCSI command to execute
* @done: SCSI command completion function
@@ -1247,17 +1244,16 @@ static void ata_scsi_qc_complete(struct
* spin_lock_irqsave(host_set lock)
*/
-static void ata_scsi_translate(struct ata_port *ap, struct ata_device *dev,
- struct scsi_cmnd *cmd,
- void (*done)(struct scsi_cmnd *),
- ata_xlat_func_t xlat_func)
+static void ata_scsi_translate(struct ata_device *dev, struct scsi_cmnd *cmd,
+ void (*done)(struct scsi_cmnd *),
+ ata_xlat_func_t xlat_func)
{
struct ata_queued_cmd *qc;
u8 *scsicmd = cmd->cmnd;
VPRINTK("ENTER\n");
- qc = ata_scsi_qc_new(ap, dev, cmd, done);
+ qc = ata_scsi_qc_new(dev, cmd, done);
if (!qc)
goto err_mem;
@@ -1266,7 +1262,7 @@ static void ata_scsi_translate(struct at
cmd->sc_data_direction == DMA_TO_DEVICE) {
if (unlikely(cmd->request_bufflen < 1)) {
printk(KERN_WARNING "ata%u(%u): WARNING: zero len r/w req\n",
- ap->id, dev->devno);
+ dev->ap->id, dev->devno);
goto err_did;
}
@@ -2433,19 +2429,20 @@ static inline void ata_scsi_dump_cdb(str
#endif
}
-static inline void __ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
- struct ata_port *ap, struct ata_device *dev)
+static inline void __ata_scsi_queuecmd(struct scsi_cmnd *cmd,
+ void (*done)(struct scsi_cmnd *),
+ struct ata_device *dev)
{
if (dev->class == ATA_DEV_ATA) {
ata_xlat_func_t xlat_func = ata_get_xlat_func(dev,
cmd->cmnd[0]);
if (xlat_func)
- ata_scsi_translate(ap, dev, cmd, done, xlat_func);
+ ata_scsi_translate(dev, cmd, done, xlat_func);
else
- ata_scsi_simulate(ap, dev, cmd, done);
+ ata_scsi_simulate(dev, cmd, done);
} else
- ata_scsi_translate(ap, dev, cmd, done, atapi_xlat);
+ ata_scsi_translate(dev, cmd, done, atapi_xlat);
}
/**
@@ -2483,7 +2480,7 @@ int ata_scsi_queuecmd(struct scsi_cmnd *
dev = ata_scsi_find_dev(ap, scsidev);
if (likely(dev))
- __ata_scsi_queuecmd(cmd, done, ap, dev);
+ __ata_scsi_queuecmd(cmd, done, dev);
else {
cmd->result = (DID_BAD_TARGET << 16);
done(cmd);
@@ -2496,7 +2493,6 @@ int ata_scsi_queuecmd(struct scsi_cmnd *
/**
* ata_scsi_simulate - simulate SCSI command on ATA device
- * @ap: port the device is connected to
* @dev: the target device
* @cmd: SCSI command being sent to device.
* @done: SCSI command completion function.
@@ -2508,14 +2504,12 @@ int ata_scsi_queuecmd(struct scsi_cmnd *
* spin_lock_irqsave(host_set lock)
*/
-void ata_scsi_simulate(struct ata_port *ap, struct ata_device *dev,
- struct scsi_cmnd *cmd,
+void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *))
{
struct ata_scsi_args args;
const u8 *scsicmd = cmd->cmnd;
- args.ap = ap;
args.dev = dev;
args.id = dev->id;
args.cmd = cmd;
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 43a56e5..a810c91 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -32,7 +32,6 @@
#define DRV_VERSION "1.30" /* must be exactly four chars */
struct ata_scsi_args {
- struct ata_port *ap;
struct ata_device *dev;
u16 *id;
struct scsi_cmnd *cmd;
@@ -43,18 +42,16 @@ struct ata_scsi_args {
extern int atapi_enabled;
extern int atapi_dmadir;
extern int libata_fua;
-extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
- struct ata_device *dev);
+extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
-extern void ata_dev_disable(struct ata_port *ap, struct ata_device *dev);
+extern void ata_dev_disable(struct ata_device *dev);
extern void ata_port_flush_task(struct ata_port *ap);
-extern unsigned ata_exec_internal(struct ata_port *ap, struct ata_device *dev,
+extern unsigned ata_exec_internal(struct ata_device *dev,
struct ata_taskfile *tf, const u8 *cdb,
int dma_dir, void *buf, unsigned int buflen);
extern int ata_down_sata_spd_limit(struct ata_port *ap);
extern int ata_set_sata_spd_needed(struct ata_port *ap);
-extern int ata_down_xfermask_limit(struct ata_port *ap, struct ata_device *dev,
- int force_pio0);
+extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0);
extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
extern int ata_do_reset(struct ata_port *ap, ata_reset_fn_t reset,
unsigned int *classes);
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 8d7fbb3..bd8cd3b 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -518,8 +518,7 @@ extern void ata_std_probeinit(struct ata
extern int ata_std_softreset(struct ata_port *ap, unsigned int *classes);
extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class);
extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
-extern int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev,
- int post_reset);
+extern int ata_dev_revalidate(struct ata_device *dev, int post_reset);
extern void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
@@ -545,8 +544,8 @@ extern int ata_port_online(struct ata_po
extern int ata_port_offline(struct ata_port *ap);
extern int ata_scsi_device_resume(struct scsi_device *);
extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
-extern int ata_device_resume(struct ata_port *, struct ata_device *);
-extern int ata_device_suspend(struct ata_port *, struct ata_device *, pm_message_t state);
+extern int ata_device_resume(struct ata_device *);
+extern int ata_device_suspend(struct ata_device *, pm_message_t state);
extern int ata_ratelimit(void);
extern unsigned int ata_busy_sleep(struct ata_port *ap,
unsigned long timeout_pat,
@@ -592,15 +591,13 @@ extern void ata_bmdma_stop(struct ata_qu
extern u8 ata_bmdma_status(struct ata_port *ap);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
extern void __ata_qc_complete(struct ata_queued_cmd *qc);
-extern void ata_scsi_simulate(struct ata_port *ap, struct ata_device *dev,
- struct scsi_cmnd *cmd,
+extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
extern int ata_std_bios_param(struct scsi_device *sdev,
struct block_device *bdev,
sector_t capacity, int geom[]);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
-extern struct ata_device *ata_dev_pair(struct ata_port *ap,
- struct ata_device *adev);
+extern struct ata_device *ata_dev_pair(struct ata_device *adev);
/*
* Timing helpers
@@ -812,12 +809,12 @@ static inline struct ata_queued_cmd *ata
return NULL;
}
-static inline void ata_tf_init(struct ata_port *ap, struct ata_taskfile *tf, unsigned int device)
+static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
{
memset(tf, 0, sizeof(*tf));
- tf->ctl = ap->ctl;
- if (device == 0)
+ tf->ctl = dev->ap->ctl;
+ if (dev->devno == 0)
tf->device = ATA_DEVICE_OBS;
else
tf->device = ATA_DEVICE_OBS | ATA_DEV1;
@@ -832,7 +829,7 @@ static inline void ata_qc_reinit(struct
qc->nbytes = qc->curbytes = 0;
qc->err_mask = 0;
- ata_tf_init(qc->ap, &qc->tf, qc->dev->devno);
+ ata_tf_init(qc->dev, &qc->tf);
/* init result_tf such that it indicates normal completion */
qc->result_tf.command = ATA_DRDY;
--
1.2.4
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