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ide: refactor tf_read() method

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Simplify tf_read() method, making it deal only with 'struct ide_taskfile' and
the validity flags that the upper layer passes, and factoring out the code that
deals with the high order bytes into ide_tf_readback() to be called from the
only two functions interested, ide_complete_cmd() and ide_dump_sector().

This should stop the needless code duplication in this method and so make
it about twice smaller than it was; along with simplifying the setup for
the method call, this should save both time and space...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Sergei Shtylyov
2009-04-08 14:13:03 +02:00
committed by Bartlomiej Zolnierkiewicz
parent c9ff9e7b64
commit 3153c26b54
10 changed files with 40 additions and 101 deletions
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drivers/ide/ide-probe.c
+3 -6
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@@ -335,14 +335,11 @@ int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus)
static u8 ide_read_device(ide_drive_t *drive)
{
struct ide_cmd cmd;
struct ide_taskfile tf;
memset(&cmd, 0, sizeof(cmd));
cmd.valid.in.tf = IDE_VALID_DEVICE;
drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_DEVICE);
drive->hwif->tp_ops->tf_read(drive, &cmd);
return cmd.tf.device;
return tf.device;
}
/**