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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2009-04-08 16:13:02 +0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-04-08 16:13:02 +0400
commit745483f10c6cefb303007c6873e2bfce54efa8ed (patch)
tree9dc9dca95f017edf279bf3e2d5ec3d07481e75da /drivers/ide/ide-lib.c
parent60f85019c6c8c1aebf3485a313e0da094bc95d07 (diff)
downloadlinux-745483f10c6cefb303007c6873e2bfce54efa8ed.tar.xz
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>
Diffstat (limited to 'drivers/ide/ide-lib.c')
-rw-r--r--drivers/ide/ide-lib.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index c9ef77c5d62e..6857e6aaf20d 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -49,16 +49,17 @@ static void ide_dump_opcode(ide_drive_t *drive)
printk(KERN_CONT "0x%02x\n", cmd->tf.command);
}
-u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
+u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
{
+ struct ide_taskfile *tf = &cmd->tf;
u32 high, low;
- if (lba48)
- high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) |
- tf->hob_lbal;
- else
- high = tf->device & 0xf;
low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
+ if (lba48) {
+ tf = &cmd->hob;
+ high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
+ } else
+ high = tf->device & 0xf;
return ((u64)high << 24) | low;
}
@@ -82,7 +83,7 @@ static void ide_dump_sector(ide_drive_t *drive)
if (lba48 || (tf->device & ATA_LBA))
printk(KERN_CONT ", LBAsect=%llu",
- (unsigned long long)ide_get_lba_addr(tf, lba48));
+ (unsigned long long)ide_get_lba_addr(&cmd, lba48));
else
printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
tf->device & 0xf, tf->lbal);