ide: simplify 'struct ide_taskfile'

Make 'struct ide_taskfile' cover only 8 register values and thus put two such
fields ('tf' and 'hob') into 'struct ide_cmd', dropping unnecessary 'tf_array'
field from it.

This required changing the prototype of ide_get_lba_addr() and ide_tf_dump().

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
[bart: fix setting of ATA_LBA bit for LBA48 commands in __ide_do_rw_disk()]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 13 insertions, 18 deletions

diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index dc84f8bde52a..3160be494aa0 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -23,17 +23,16 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
-void ide_tf_dump(const char *s, struct ide_taskfile *tf)
+void ide_tf_dump(const char *s, struct ide_cmd *cmd)
 {
 #ifdef DEBUG
         printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x "
                 "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n",
-                s, tf->feature, tf->nsect, tf->lbal,
-                tf->lbam, tf->lbah, tf->device, tf->command);
-        printk("%s: hob: nsect 0x%02x lbal 0x%02x "
-                "lbam 0x%02x lbah 0x%02x\n",
-                s, tf->hob_nsect, tf->hob_lbal,
-                tf->hob_lbam, tf->hob_lbah);
+               s, cmd->tf.feature, cmd->tf.nsect,
+               cmd->tf.lbal, cmd->tf.lbam, cmd->tf.lbah,
+               cmd->tf.device, cmd->tf.command);
+        printk("%s: hob: nsect 0x%02x lbal 0x%02x lbam 0x%02x lbah 0x%02x\n",
+               s, cmd->hob.nsect, cmd->hob.lbal, cmd->hob.lbam, cmd->hob.lbah);
 #endif
 }
 
@@ -80,12 +79,12 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
         memcpy(cmd, orig_cmd, sizeof(*cmd));
 
         if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
-                ide_tf_dump(drive->name, tf);
+                ide_tf_dump(drive->name, cmd);
                 tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
                 SELECT_MASK(drive, 0);
 
                 if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) {
-                        u8 data[2] = { tf->data, tf->hob_data };
+                        u8 data[2] = { cmd->tf.data, cmd->hob.data };
 
                         tp_ops->output_data(drive, cmd, data, 2);
                 }
@@ -490,10 +489,8 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 
         memset(&cmd, 0, sizeof(cmd));
 
-        memcpy(&cmd.tf_array[0], req_task->hob_ports,
-               HDIO_DRIVE_HOB_HDR_SIZE - 2);
-        memcpy(&cmd.tf_array[6], req_task->io_ports,
-               HDIO_DRIVE_TASK_HDR_SIZE);
+        memcpy(&cmd.hob, req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2);
+        memcpy(&cmd.tf,  req_task->io_ports,  HDIO_DRIVE_TASK_HDR_SIZE);
 
         cmd.valid.out.tf = IDE_VALID_DEVICE;
         cmd.valid.in.tf  = IDE_VALID_DEVICE | IDE_VALID_IN_TF;
@@ -598,7 +595,7 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
         if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA)
                 nsect = 0;
         else if (!nsect) {
-                nsect = (cmd.tf.hob_nsect << 8) | cmd.tf.nsect;
+                nsect = (cmd.hob.nsect << 8) | cmd.tf.nsect;
 
                 if (!nsect) {
                         printk(KERN_ERR "%s: in/out command without data\n",
@@ -610,10 +607,8 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
 
         err = ide_raw_taskfile(drive, &cmd, data_buf, nsect);
 
-        memcpy(req_task->hob_ports, &cmd.tf_array[0],
-               HDIO_DRIVE_HOB_HDR_SIZE - 2);
-        memcpy(req_task->io_ports, &cmd.tf_array[6],
-               HDIO_DRIVE_TASK_HDR_SIZE);
+        memcpy(req_task->hob_ports, &cmd.hob, HDIO_DRIVE_HOB_HDR_SIZE - 2);
+        memcpy(req_task->io_ports,  &cmd.tf,  HDIO_DRIVE_TASK_HDR_SIZE);
 
         if ((cmd.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) &&
             req_task->in_flags.all == 0) {