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    Subject[PATCH 3.16 274/410] libata: disable LPM for Crucial BX100 SSD 500GB drive
    3.16.57-rc1 review patch.  If anyone has any objections, please let me know.

    ------------------

    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>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    ---
    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_NOLPM, },
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