4.4-stable review patch. If anyone has any objections, please let me know.
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From: Kai-Heng Feng kai.heng.feng@canonical.com
commit b17e5729a630d8326a48ec34ef02e6b4464a6aef upstream.
After Laptop Mode Tools starts to use min_power for LPM, a user found out Crucial BX100 SSD can't get mounted.
Crucial BX100 SSD 500GB drive don't work well with min_power. This also happens to med_power_with_dipm.
So let's disable LPM for Crucial BX100 SSD 500GB drive.
BugLink: https://bugs.launchpad.net/bugs/1726930 Signed-off-by: Kai-Heng Feng kai.heng.feng@canonical.com Signed-off-by: Tejun Heo tj@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/ata/libata-core.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4224,6 +4224,9 @@ static const struct ata_blacklist_entry { "PIONEER DVD-RW DVR-212D", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER },
+ /* Crucial BX100 SSD 500GB has broken LPM support */ + { "CT500BX100SSD1", "MU02", ATA_HORKAGE_NOLPM }, + /* The 512GB version of the MX100 has both queued TRIM and LPM issues */ { "Crucial_CT512MX100*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM |