Hi Yue Haibing, > srb_tag = le32_to_cpu(scsiqp->srb_tag); > - scp = scsi_host_find_tag(boardp->shost, scsiqp->srb_tag); > + scp = scsi_host_find_tag(boardp->shost, srb_tag); Maybe I'm missing something, but I don't see where in the code scsiqp->srb_tag is being converted to le32. srb_tag is beyond the memory accessed by the controller and thus wouldn't need to be little endian. -- Martin K. Petersen Oracle Linux Engineering