Tejun Heo wrote:
From 2.6.26, libata is defaulting to hardreset for various reasons one
of them being unifying probing, hotplug and EH reset paths uniform.
Previously, broken hardreset could go unnoticed as it wasn't used
during probing but when something goes wrong or after hotplug the
problem will surface and bite hard.
OSDL bug 11195 reports that sata_nv generic flavor falls into this
category. Hardreset itself succeeds but PHY stays offline after
hardreset. I tried longer debounce timing but the result was the
same.
http://bugzilla.kernel.org/show_bug.cgi?id=11195
So, it seems we'll have to drop hardreset from the generic flavor.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: Peer Chen <pchen@xxxxxxxxxx>
---
There have been more than three reports of this problem and there just
isn't good reason to defer this workaround anymore. Once this gets
into #upstream-fixes, I think this should go to -stable too.
Thanks.
drivers/ata/sata_nv.c | 19 +------------------
applied
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