4630 clean stale references to ddi_iopb_alloc and ddi_iopb_free
4634 undocument scsi_hba_attach() and ddi_dma_lim(9s)

@@ -97,13 +97,10 @@
         /*
          * If scsi_slave is used to probe out this device, a scsi_inquiry data
          * structure will be allocated and an INQUIRY command will be run to
          * fill it in.
          *
-         * The allocation will be done via ddi_iopb_alloc, so any manual
-         * freeing may be done by ddi_iopb_free.
-         *
          * The inquiry data is allocated/refreshed by scsi_probe/scsi_slave
          * and freed by uninitchild (inquiry data is no longer freed by
          * scsi_unprobe/scsi_unslave).
          *
          * NOTE: Additional device identity information may be available