diff options
Diffstat (limited to 'drivers/usb/storage')
| -rw-r--r-- | drivers/usb/storage/transport.c | 10 | ||||
| -rw-r--r-- | drivers/usb/storage/usb.h | 1 |
2 files changed, 3 insertions, 8 deletions
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index e6b1c6cf07f2..e42875152c34 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -611,7 +611,6 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) unsigned char old_sc_data_direction; unsigned char old_cmd_len; unsigned char old_cmnd[MAX_COMMAND_SIZE]; - unsigned long old_serial_number; int old_resid; US_DEBUGP("Issuing auto-REQUEST_SENSE\n"); @@ -648,10 +647,6 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) old_sg = srb->use_sg; srb->use_sg = 0; - /* change the serial number -- toggle the high bit*/ - old_serial_number = srb->serial_number; - srb->serial_number ^= 0x80000000; - /* issue the auto-sense command */ old_resid = srb->resid; srb->resid = 0; @@ -662,7 +657,6 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) srb->request_buffer = old_request_buffer; srb->request_bufflen = old_request_bufflen; srb->use_sg = old_sg; - srb->serial_number = old_serial_number; srb->sc_data_direction = old_sc_data_direction; srb->cmd_len = old_cmd_len; memcpy(srb->cmnd, old_cmnd, MAX_COMMAND_SIZE); @@ -985,7 +979,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN); bcb->DataTransferLength = cpu_to_le32(transfer_length); bcb->Flags = srb->sc_data_direction == DMA_FROM_DEVICE ? 1 << 7 : 0; - bcb->Tag = srb->serial_number; + bcb->Tag = ++us->tag; bcb->Lun = srb->device->lun; if (us->flags & US_FL_SCM_MULT_TARG) bcb->Lun |= srb->device->id << 4; @@ -1074,7 +1068,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) US_DEBUGP("Bulk Status S 0x%x T 0x%x R %u Stat 0x%x\n", le32_to_cpu(bcs->Signature), bcs->Tag, residue, bcs->Status); - if (bcs->Tag != srb->serial_number || bcs->Status > US_BULK_STAT_PHASE) { + if (bcs->Tag != us->tag || bcs->Status > US_BULK_STAT_PHASE) { US_DEBUGP("Bulk logical error\n"); return USB_STOR_TRANSPORT_ERROR; } diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index 625b7aa98074..a195adae57b6 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -158,6 +158,7 @@ struct us_data { /* SCSI interfaces */ struct scsi_cmnd *srb; /* current srb */ + unsigned int tag; /* current dCBWTag */ /* thread information */ int pid; /* control thread */ |
