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authorMartin K. Petersen <martin.petersen@oracle.com>2017-04-04 14:42:30 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-04-21 07:31:21 (GMT)
commit08383b004426591502b86bfacdc638d85cedf26c (patch)
tree699f2650c7c381fc1fc08122de863c516a34c1ed /samples/mei
parent64e746983c4c8c88393866485cbca1782071aeb1 (diff)
downloadlinux-08383b004426591502b86bfacdc638d85cedf26c.tar.xz
scsi: sd: Fix capacity calculation with 32-bit sector_t
commit 7c856152cb92f8eee2df29ef325a1b1f43161aff upstream. We previously made sure that the reported disk capacity was less than 0xffffffff blocks when the kernel was not compiled with large sector_t support (CONFIG_LBDAF). However, this check assumed that the capacity was reported in units of 512 bytes. Add a sanity check function to ensure that we only enable disks if the entire reported capacity can be expressed in terms of sector_t. Reported-by: Steve Magnani <steve.magnani@digidescorp.com> Cc: Bart Van Assche <Bart.VanAssche@sandisk.com> Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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