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>

4 files changed, 72 insertions, 76 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 49e702670b8e..6a1ade8ca9fe 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -208,8 +208,8 @@ void ide_floppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
 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);
diff --git a/drivers/ide/ide-floppy.h b/drivers/ide/ide-floppy.h
index 6eee8d3a7243..e9e14c30fed7 100644
--- 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 */
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index fe8502afd2ea..72ecc5657db2 100644
--- 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_cmd(struct ide_atapi_pc *pc)
 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);
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 3bf2bf0a56dc..908b4fc9772c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -322,7 +322,71 @@ 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;
 
@@ -492,6 +556,9 @@ 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;
@@ -768,71 +835,6 @@ ide_decl_devset(pio_mode);
 ide_decl_devset(unmaskirq);
 ide_decl_devset(using_dma);
 
-/* 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
 /*
  * /proc/ide interface