Alan,
I keep meaning to mention this (and get it into the mail archive)...
The 32-bit IO patch was incomplete, because it rendered
ATA_IOC_[GS]ET_IO32 handling in ata_sas_scsi_ioctl() -- our base ioctl
handler -- incorrect.
Previously, it simply ensured the ioctls reflected hardcoded 16-bit I/O.
Now, behavior no longer matches what the ioctls report.
At a minimum, drivers probably need to set an "I'm using 32bit I/O"
flag, that the ioctl then reads, replacing ata_sas_scsi_ioctl()'s
assumption that val==0.
Jeff
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