From: Hans de Goede Date: Thu, 26 Apr 2018 20:32:21 +0000 (+0200) Subject: libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3b93fff8f4527d7ccfed3c73b7a590aea3d4e8aa;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs commit 184add2ca23ce5edcac0ab9c3b9be13f91e7b567 upstream. Richard Jones has reported that using med_power_with_dipm on a T450s with a Sandisk SD7UB3Q256G1001 SSD (firmware version X2180501) is causing the machine to hang. Switching the LPM to max_performance fixes this, so it seems that this Sandisk SSD does not handle LPM well. Note in the past there have been bug-reports about the following Sandisk models not working with min_power, so we may need to extend the quirk list in the future: name - firmware Sandisk SD6SB2M512G1022I - X210400 Sandisk SD6PP4M-256G-1006 - A200906 Cc: stable@vger.kernel.org Cc: Richard W.M. Jones Reported-and-tested-by: Richard W.M. Jones Signed-off-by: Hans de Goede Signed-off-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c6fe2974b336..473f150d6b22 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4539,6 +4539,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { ATA_HORKAGE_ZERO_AFTER_TRIM | ATA_HORKAGE_NOLPM, }, + /* Sandisk devices which are known to not handle LPM well */ + { "SanDisk SD7UB3Q*G1001", NULL, ATA_HORKAGE_NOLPM, }, + /* devices that don't properly handle queued TRIM commands */ { "Micron_M500_*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, },