- Remove unused private fields from some classes (found by Clang).
- In freebsd_scsi_device::scsi_pass_through:
* Make sure this function returns false on error instead of an error
code that gets converted to true.
* Put printing of the "Incoming data" debug info right after the
cam_send_ccb() call and before the error checking to make
debugging easier.
* When copying sense data make sure the fields in the CCB are
actually valid with CAM_AUTOSNS_VALID. Also make sure that the
size of the sense data doesn't overflow max_sense_len. This was
the real cause for the crash in ports/181836.
* Add some debug printing on the sense data.
Committed upstream as r3873.
PR: ports/181836, ports/185960, ports/186095
Tested by: many
8b413af5b1