tree 66f5d504778166f62f25fb0bc8c7d0e5491b92de
parent e4dc9a4c31fe10d1751c542702afc85be8a5c56a
author Xiang Chen <chenxiang66@hisilicon.com> 1578532344 +0800
committer Martin K. Petersen <martin.petersen@oracle.com> 1578637736 -0500

scsi: sd: Clear sdkp->protection_type if disk is reformatted without PI

If an attached disk with protection information enabled is reformatted
to Type 0 the revalidation code does not clear the original protection
type and subsequent accesses will keep setting RDPROTECT/WRPROTECT.

Set the protection type to 0 if the disk reports PROT_EN=0 in READ
CAPACITY(16).

[mkp: commit desc]

Fixes: fe542396da73 ("[SCSI] sd: Ensure we correctly disable devices with unknown protection type")
Link: https://lore.kernel.org/r/1578532344-101668-1-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>