From: Gabriele Mazzotta Date: Sat, 25 Apr 2015 17:52:37 +0000 (+0200) Subject: libata: Ignore spurious PHY event on LPM policy change X-Git-Tag: omap-for-v4.2/wakeirq-drivers~2^2~38^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=09c5b4803a80a5451d950d6a539d2eb311dc0fb1;p=pandora-kernel.git libata: Ignore spurious PHY event on LPM policy change When the LPM policy is set to ATA_LPM_MAX_POWER, the device might generate a spurious PHY event that cuases errors on the link. Ignore this event if it occured within 10s after the policy change. The timeout was chosen observing that on a Dell XPS13 9333 these spurious events can occur up to roughly 6s after the policy change. Link: http://lkml.kernel.org/g/3352987.ugV1Ipy7Z5@xps13 Signed-off-by: Gabriele Mazzotta Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- Reading git-diff-tree failed