Symbol: SG_DXFER_NONE
drivers/scsi/scsi_ioctl.c
822
hdr.dxfer_direction = SG_DXFER_NONE;
drivers/scsi/sg.c
1771
if ((dxfer_len <= 0) || (dxfer_dir == SG_DXFER_NONE))
drivers/scsi/sg.c
673
hp->dxfer_direction = (mxsize > 0) ? SG_DXFER_FROM_DEV : SG_DXFER_NONE;