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Date: Tue, 16 Dec 2008 08:36:04 +0100
From: Borislav Petkov <petkovbb@...glemail.com>
To: <bzolnier@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
Borislav Petkov <petkovbb@...il.com>
Subject: [PATCH 4/9] ide-atapi: replace pc->req_xfer with drive->pc_req_xfer
There should be no functionality change resulting from this patch.
Signed-off-by: Borislav Petkov <petkovbb@...il.com>
---
drivers/ide/ide-atapi.c | 14 +++++++-------
drivers/ide/ide-floppy.c | 8 ++++----
drivers/ide/ide-tape.c | 16 ++++++++--------
include/linux/ide.h | 5 +++--
4 files changed, 22 insertions(+), 21 deletions(-)
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 964a7e2..1b4d157 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -123,6 +123,7 @@ void ide_init_pc(ide_drive_t *drive, struct ide_atapi_pc *pc)
pc->buf = pc->pc_buf;
pc->buf_size = IDE_PC_BUFFER_SIZE;
drive->pc_flags = 0;
+ drive->pc_req_xfer = 0;
}
EXPORT_SYMBOL_GPL(ide_init_pc);
@@ -219,10 +220,10 @@ void ide_create_request_sense_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc)
pc->c[0] = REQUEST_SENSE;
if (drive->media == ide_floppy) {
pc->c[4] = 255;
- pc->req_xfer = 18;
+ drive->pc_req_xfer = 18;
} else {
pc->c[4] = 20;
- pc->req_xfer = 20;
+ drive->pc_req_xfer = 20;
}
}
EXPORT_SYMBOL_GPL(ide_create_request_sense_cmd);
@@ -335,7 +336,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
? "write" : "read");
drive->pc_flags |= PC_FLAG_DMA_ERROR;
} else {
- rq->data_len = pc->req_xfer;
+ rq->data_len = drive->pc_req_xfer;
if (drive->pc_update_buffers)
drive->pc_update_buffers(drive, pc);
}
@@ -416,7 +417,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
if (!write) {
/* Reading - Check that we have enough space */
temp = rq->data_len + bcount;
- if (temp > pc->req_xfer) {
+ if (temp > drive->pc_req_xfer) {
if (temp > pc->buf_size) {
printk(KERN_ERR "%s: The device wants to send "
@@ -564,7 +565,6 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout)
{
- struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
ide_expiry_t *expiry = NULL;
u32 tf_flags;
@@ -577,8 +577,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout)
} else {
tf_flags = IDE_TFLAG_OUT_DEVICE;
bcount = ((drive->media == ide_tape) ?
- pc->req_xfer :
- min(pc->req_xfer, 63 * 1024));
+ drive->pc_req_xfer :
+ min(drive->pc_req_xfer, 63 * 1024));
}
if (drive->pc_flags & PC_FLAG_DMA_ERROR) {
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index f88ccd1..99f0c49 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -207,7 +207,7 @@ void ide_floppy_create_read_capacity_cmd(ide_drive_t *drive,
pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES;
pc->c[7] = 255;
pc->c[8] = 255;
- pc->req_xfer = 255;
+ drive->pc_req_xfer = 255;
}
/* A mode sense command is used to "sense" floppy parameters. */
@@ -232,7 +232,7 @@ void ide_floppy_create_mode_sense_cmd(ide_drive_t *drive,
printk(KERN_ERR PFX "unsupported page code in %s\n", __func__);
}
put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]);
- pc->req_xfer = length;
+ drive->pc_req_xfer = length;
}
static void idefloppy_create_rw_cmd(ide_drive_t *drive,
@@ -258,7 +258,7 @@ static void idefloppy_create_rw_cmd(ide_drive_t *drive,
pc->b_count = 0;
rq->data = NULL;
rq->data_len = 0;
- pc->req_xfer = pc->buf_size = blocks * floppy->block_size;
+ drive->pc_req_xfer = pc->buf_size = blocks * floppy->block_size;
drive->pc_flags |= PC_FLAG_DMA_OK;
}
@@ -276,7 +276,7 @@ static void idefloppy_blockpc_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc,
* possibly problematic, doesn't look like ide-floppy correctly
* handled scattered requests if dma fails...
*/
- pc->req_xfer = pc->buf_size = rq->data_len;
+ drive->pc_req_xfer = pc->buf_size = rq->data_len;
}
static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 1890f9f..35a41e2 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -413,7 +413,7 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
/* Correct rq->data_len by asking the tape. */
if (drive->pc_flags & PC_FLAG_DMA_ERROR) {
- rq->data_len = pc->req_xfer -
+ rq->data_len = drive->pc_req_xfer -
tape->blk_size *
get_unaligned_be32(&sense[3]);
idetape_update_buffers(drive, pc);
@@ -720,11 +720,11 @@ static void idetape_create_mode_sense_cmd(ide_drive_t *drive,
/* We will just discard data in that case */
pc->c[4] = 255;
if (page_code == IDETAPE_BLOCK_DESCRIPTOR)
- pc->req_xfer = 12;
+ drive->pc_req_xfer = 12;
else if (page_code == IDETAPE_CAPABILITIES_PAGE)
- pc->req_xfer = 24;
+ drive->pc_req_xfer = 24;
else
- pc->req_xfer = 50;
+ drive->pc_req_xfer = 50;
}
static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
@@ -768,8 +768,8 @@ static void ide_tape_create_rw_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc,
pc->bh = bh;
pc->buf = NULL;
pc->buf_size = length * tape->blk_size;
- pc->req_xfer = pc->buf_size;
- if (pc->req_xfer == tape->buffer_size)
+ drive->pc_req_xfer = pc->buf_size;
+ if (drive->pc_req_xfer == tape->buffer_size)
drive->pc_flags |= PC_FLAG_DMA_OK;
if (opcode == READ_6) {
@@ -1105,7 +1105,7 @@ static void idetape_create_read_position_cmd(ide_drive_t *drive,
{
ide_init_pc(drive, pc);
pc->c[0] = READ_POSITION;
- pc->req_xfer = 20;
+ drive->pc_req_xfer = 20;
}
static int idetape_read_position(ide_drive_t *drive)
@@ -1239,7 +1239,7 @@ static void idetape_create_inquiry_cmd(ide_drive_t *drive,
ide_init_pc(drive, pc);
pc->c[0] = INQUIRY;
pc->c[4] = 254;
- pc->req_xfer = 254;
+ drive->pc_req_xfer = 254;
}
static void idetape_create_rewind_cmd(ide_drive_t *drive,
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 57afe1f..7874ac5 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -587,7 +587,7 @@ struct ide_drive_s {
struct request_queue *queue; /* request queue */
struct request *rq; /* current request */
- struct ide_drive_s *next; /* circular list of hwgroup drives */
+ struct ide_drive_s *next; /* circular list of hwgroup drives */
void *driver_data; /* extra driver data */
u16 *id; /* identification info */
#ifdef CONFIG_IDE_PROC_FS
@@ -654,8 +654,9 @@ struct ide_drive_s {
/* current packet command */
struct ide_atapi_pc *pc;
- /* atapi pc flags: temporary */
+ /* atapi pc members: temporarily harbored here */
unsigned long pc_flags;
+ int pc_req_xfer;
/* callback for packet commands */
void (*pc_callback)(struct ide_drive_s *, int);
--
1.6.0.4
--
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