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libata-scsi: fix D_SENSE bit relection in control mode page 

The bit should always be set to 1 when the requested version of
page is "changeable" because we've made it so in ata_mselect_control().
Also, it should always be set to 1 if ATA_DFLAG_D_SENSE is set (when
the requested version of page is "current" or "default").

Signed-off-by: Tom Yan <tom.ty89@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tom Yan 2016-07-13 02:54:11 +08:00 committed by Tejun Heo
parent a548cc00cf
commit c9cd3504eb
1 changed files with 1 additions and 1 deletions
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2
drivers/ata/libata-scsi.c
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@ -2451,7 +2451,7 @@ static unsigned int ata_msense_ctl_mode(struct ata_device *dev, u8 *buf,
bool changeable)
{
modecpy(buf, def_control_mpage, sizeof(def_control_mpage), changeable);
if (changeable && (dev->flags & ATA_DFLAG_D_SENSE))
if (changeable || (dev->flags & ATA_DFLAG_D_SENSE))
buf[2] |= (1 << 2); /* Descriptor sense requested */
return sizeof(def_control_mpage);
}