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Subject[PATCH 18/22] ide: add request_sense_{pc,rq} to ide_drive_t
Add 'struct ide_atapi_pc request_sense_pc' and 'request request_sense_rq' to
ide_drive_t and use them instead of fields in struct ide_{floppy,tape}_obj.
There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-floppy.c | 4 -
drivers/ide/ide-floppy.h | 3 -
drivers/ide/ide-tape.c | 7 --
include/linux/ide.h | 134 +++++++++++++++++++++++------------------------
4 files changed, 72 insertions(+), 76 deletions(-)
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -207,8 +207,8 @@ void ide_floppy_create_request_sense_cmd
static void idefloppy_retry_pc(ide_drive_t *drive)
{
struct ide_floppy_obj *floppy = drive->driver_data;
- struct request *rq = &floppy->request_sense_rq;
- struct ide_atapi_pc *pc = &floppy->request_sense_pc;
+ struct request *rq = &drive->request_sense_rq;
+ struct ide_atapi_pc *pc = &drive->request_sense_pc;

(void)ide_read_error(drive);
ide_floppy_create_request_sense_cmd(pc);
Index: b/drivers/ide/ide-floppy.h
===================================================================
--- a/drivers/ide/ide-floppy.h
+++ b/drivers/ide/ide-floppy.h
@@ -18,9 +18,6 @@ typedef struct ide_floppy_obj {
/* used for blk_{fs,pc}_request() requests */
struct ide_atapi_pc queued_pc;

- struct ide_atapi_pc request_sense_pc;
- struct request request_sense_rq;
-
/* Last error information */
u8 sense_key, asc, ascq;
/* delay this long before sending packet command */
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -182,9 +182,6 @@ typedef struct ide_tape_obj {
/* used by REQ_IDETAPE_{READ,WRITE} requests */
struct ide_atapi_pc queued_pc;

- struct ide_atapi_pc request_sense_pc;
- struct request request_sense_rq;
-
/*
* DSC polling variables.
*
@@ -600,8 +597,8 @@ static void idetape_create_request_sense
static void idetape_retry_pc(ide_drive_t *drive)
{
struct ide_tape_obj *tape = drive->driver_data;
- struct request *rq = &tape->request_sense_rq;
- struct ide_atapi_pc *pc = &tape->request_sense_pc;
+ struct request *rq = &drive->request_sense_rq;
+ struct ide_atapi_pc *pc = &drive->request_sense_pc;

(void)ide_read_error(drive);
idetape_create_request_sense_cmd(pc);
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -321,7 +321,71 @@ typedef enum {
ide_started, /* a drive operation was started, handler was set */
} ide_startstop_t;

-struct ide_atapi_pc;
+/* ATAPI packet command flags */
+enum {
+ /* set when an error is considered normal - no retry (ide-tape) */
+ PC_FLAG_ABORT = (1 << 0),
+ PC_FLAG_SUPPRESS_ERROR = (1 << 1),
+ PC_FLAG_WAIT_FOR_DSC = (1 << 2),
+ PC_FLAG_DMA_OK = (1 << 3),
+ PC_FLAG_DMA_IN_PROGRESS = (1 << 4),
+ PC_FLAG_DMA_ERROR = (1 << 5),
+ PC_FLAG_WRITING = (1 << 6),
+ /* command timed out */
+ PC_FLAG_TIMEDOUT = (1 << 7),
+};
+
+/*
+ * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes.
+ * This is used for several packet commands (not for READ/WRITE commands).
+ */
+#define IDE_PC_BUFFER_SIZE 256
+
+struct ide_atapi_pc {
+ /* actual packet bytes */
+ u8 c[12];
+ /* incremented on each retry */
+ int retries;
+ int error;
+
+ /* bytes to transfer */
+ int req_xfer;
+ /* bytes actually transferred */
+ int xferred;
+
+ /* data buffer */
+ u8 *buf;
+ /* current buffer position */
+ u8 *cur_pos;
+ int buf_size;
+ /* missing/available data on the current buffer */
+ int b_count;
+
+ /* the corresponding request */
+ struct request *rq;
+
+ unsigned long flags;
+
+ /*
+ * those are more or less driver-specific and some of them are subject
+ * to change/removal later.
+ */
+ u8 pc_buf[IDE_PC_BUFFER_SIZE];
+
+ /* idetape only */
+ struct idetape_bh *bh;
+ char *b_data;
+
+ /* idescsi only for now */
+ struct scatterlist *sg;
+ unsigned int sg_cnt;
+
+ struct scsi_cmnd *scsi_cmd;
+ void (*done) (struct scsi_cmnd *);
+
+ unsigned long timeout;
+};
+
struct ide_devset;
struct ide_driver_s;

@@ -489,6 +553,9 @@ struct ide_drive_s {
void (*pc_callback)(struct ide_drive_s *, int);

unsigned long atapi_flags;
+
+ struct ide_atapi_pc request_sense_pc;
+ struct request request_sense_rq;
};

typedef struct ide_drive_s ide_drive_t;
@@ -732,71 +799,6 @@ int set_##name(ide_drive_t *drive, int a
return 0; \
}

-/* ATAPI packet command flags */
-enum {
- /* set when an error is considered normal - no retry (ide-tape) */
- PC_FLAG_ABORT = (1 << 0),
- PC_FLAG_SUPPRESS_ERROR = (1 << 1),
- PC_FLAG_WAIT_FOR_DSC = (1 << 2),
- PC_FLAG_DMA_OK = (1 << 3),
- PC_FLAG_DMA_IN_PROGRESS = (1 << 4),
- PC_FLAG_DMA_ERROR = (1 << 5),
- PC_FLAG_WRITING = (1 << 6),
- /* command timed out */
- PC_FLAG_TIMEDOUT = (1 << 7),
-};
-
-/*
- * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes.
- * This is used for several packet commands (not for READ/WRITE commands).
- */
-#define IDE_PC_BUFFER_SIZE 256
-
-struct ide_atapi_pc {
- /* actual packet bytes */
- u8 c[12];
- /* incremented on each retry */
- int retries;
- int error;
-
- /* bytes to transfer */
- int req_xfer;
- /* bytes actually transferred */
- int xferred;
-
- /* data buffer */
- u8 *buf;
- /* current buffer position */
- u8 *cur_pos;
- int buf_size;
- /* missing/available data on the current buffer */
- int b_count;
-
- /* the corresponding request */
- struct request *rq;
-
- unsigned long flags;
-
- /*
- * those are more or less driver-specific and some of them are subject
- * to change/removal later.
- */
- u8 pc_buf[IDE_PC_BUFFER_SIZE];
-
- /* idetape only */
- struct idetape_bh *bh;
- char *b_data;
-
- /* idescsi only for now */
- struct scatterlist *sg;
- unsigned int sg_cnt;
-
- struct scsi_cmnd *scsi_cmd;
- void (*done) (struct scsi_cmnd *);
-
- unsigned long timeout;
-};
-
#ifdef CONFIG_IDE_PROC_FS
/*
* configurable drive settings

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