Kristen Carlson Accardi wrote:
quoted text
> Enclosure Management via LED
> 
> This patch implements Enclosure Management via the LED protocol as specified
> in AHCI specification.
> 
> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
> ---
> This revision makes the change to the comment requested by Mark Lord,
> fixes some bugs in the bit shifting for writing the new led state,
> and implements a show function so that led status can be read as
> well as written.

Overall looks pretty good, from a technical review perspective.

Two worries:

1) exporting ata_scsi_find_dev(), and assuming a scsi device is 
attached.  the latter can be fixed by a !NULL check (and should be), but 
its a bit of a layering violation since long term we want to make the 
SCSI simulator optional for all ATA devices.

2) vaguely related to #1, I'm not so sure the attributes should be 
implemented directly in ahci.  if this __or something like it__ appears 
on non-Intel hardware, the code should be somewhere more generic.


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