Re: [PATCH 09/13] libata-acpi: clean up ata_acpi_exec_tfs()

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Tejun Heo wrote:
This patch cleans up ata_acpi_exec_tfs() and its friends.

* Rename taskfile_array to ata_acpi_gtf and make it __packed as it's
  used as argument to ACPI method, and use pointer to ata_acpi_gtf and
  number of taskfiles to represent _GTF taskfiles instead of a pointer
  casted into unsigned long and byte count.  This makes argument
  re-checking in do_drive_set_taskfiles() unnecessary.

* Pointer in void * not in unsigned long.

* Clean up do_drive_get_GTF() error handling and make
  do_drive_get_GTF() return number of taskfiles on success, 0 if _GTF
  doesn't exist or doesn't contain valid ata.  -errno on other errors.

* Remove superflous check for acpi->buffer.pointer.

* Update taskfile_load_raw() such that printed messages look similar
  to the messages printed by ata_eh_report().

Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
 drivers/ata/libata-acpi.c |  219 ++++++++++++++++++++++-----------------------
 1 files changed, 107 insertions(+), 112 deletions(-)

ACK

As an aside, I hate the "do_" prefix on functions.  It is utterly redundant.


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