Re: [PATCH #upstream-fixes] libata: set device class to NONE if phys_offline

[Jeff Garzik <jeff@garzik.org>]

Tejun Heo wrote:
> Reset methods don't have access to phys link status for slave links
> and may incorrectly indicate device presence causing unnecessary probe
> failures for unoccupied links.  This patch clears device class to NONE
> during post-reset processing if phys link is offline.
> 
> As on/offliness semantics is strictly defined and used in multiple
> places by the core layer, this won't change behavior for drivers which
> don't use slave links.
> 
> Signed-off-by: Tejun Heo <tj@kernel.org>
> ---
> vt8251 incorrectly reports the same signature for unoccupied device if
> the other device on the channel is present.  This patch fixes the
> problem.
> 
> I integrated this patch into separate-sff-bmdma git tree.
> 
>  drivers/ata/libata-eh.c |   16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)

applied