Skip to content

L
linux
Commit 0ac962dd authored by Matthew Dharm's avatar Matthew Dharm Committed by Greg Kroah-Hartman
Browse files
Options

[PATCH] usb storage: remmove unneeded abort checks 

Since we now test for aborts at a higher level, the low-level end of the
drivers don't need to be constantly testing for aborts.  This patch removes
that excess logic.
parent a3a67b1f
Hide whitespace changes
Inline Side-by-side
Showing with 2 additions and 141 deletions
drivers/usb/storage/freecom.c
View file @ 0ac962dd
......@@ -130,13 +130,6 @@ freecom_readdata (Scsi_Cmnd *srb, struct us_data *us,
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP ("Freecom readdata xpot failure: r=%d, p=%d\n",
result, partial);
/* has the current command been aborted? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("freecom_readdata(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
return USB_STOR_TRANSPORT_ERROR;
}
US_DEBUGP("Done issuing read request: %d %d\n", result, partial);
......@@ -173,13 +166,6 @@ freecom_writedata (Scsi_Cmnd *srb, struct us_data *us,
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP ("Freecom writedata xpot failure: r=%d, p=%d\n",
result, partial);
/* has the current command been aborted? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("freecom_writedata(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
return USB_STOR_TRANSPORT_ERROR;
}
US_DEBUGP("Done issuing write request: %d %d\n",
......@@ -238,13 +224,6 @@ int freecom_transport(Scsi_Cmnd *srb, struct us_data *us)
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP ("freecom xport failure: r=%d, p=%d\n",
result, partial);
/* we canceled this transfer */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("freecom_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
return USB_STOR_TRANSPORT_ERROR;
}
......@@ -253,12 +232,6 @@ int freecom_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_msg (us, fst, ipipe,
FCM_PACKET_LENGTH, &partial);
US_DEBUGP("foo Status result %d %d\n", result, partial);
/* we canceled this transfer */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("freecom_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
......@@ -293,13 +266,6 @@ int freecom_transport(Scsi_Cmnd *srb, struct us_data *us)
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP ("freecom xport failure: r=%d, p=%d\n",
result, partial);
/* we canceled this transfer */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("freecom_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
return USB_STOR_TRANSPORT_ERROR;
}
......@@ -308,12 +274,6 @@ int freecom_transport(Scsi_Cmnd *srb, struct us_data *us)
FCM_PACKET_LENGTH, &partial);
US_DEBUGP("bar Status result %d %d\n", result, partial);
/* we canceled this transfer */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("freecom_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (result > USB_STOR_XFER_SHORT)
return USB_STOR_TRANSPORT_ERROR;
......@@ -372,10 +332,6 @@ int freecom_transport(Scsi_Cmnd *srb, struct us_data *us)
FCM_PACKET_LENGTH, &partial);
US_DEBUG(pdump ((void *) fst, partial));
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP ("freecom_transport: transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (partial != 4 || result > USB_STOR_XFER_SHORT)
return USB_STOR_TRANSPORT_ERROR;
if ((fst->Status & ERR_STAT) != 0) {
......@@ -401,10 +357,6 @@ int freecom_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_msg (us, fst, ipipe,
FCM_PACKET_LENGTH, &partial);
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP ("freecom_transport: transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (partial != 4 || result > USB_STOR_XFER_SHORT)
return USB_STOR_TRANSPORT_ERROR;
if ((fst->Status & ERR_STAT) != 0) {
......
drivers/usb/storage/isd200.c
View file @ 0ac962dd
......@@ -130,7 +130,6 @@
#define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */
#define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */
#define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */
#define ISD200_TRANSPORT_ABORTED 3 /* Transport aborted */
#define ISD200_TRANSPORT_SHORT 4 /* Transport short */
/* driver action codes */
......@@ -436,11 +435,6 @@ int isd200_Bulk_transport( struct us_data *us, Scsi_Cmnd *srb,
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
(char *) &bcb, US_BULK_CB_WRAP_LEN, NULL);
US_DEBUGP("Bulk command transfer result=%d\n", result);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
return ISD200_TRANSPORT_ABORTED;
}
if (result != USB_STOR_XFER_GOOD)
return ISD200_TRANSPORT_ERROR;
......@@ -451,10 +445,6 @@ int isd200_Bulk_transport( struct us_data *us, Scsi_Cmnd *srb,
result = usb_stor_bulk_transfer_srb(us, pipe, srb,
transfer_length);
US_DEBUGP("Bulk data transfer result 0x%x\n", result);
/* if it was aborted, we need to indicate that */
if (result == USB_STOR_XFER_ABORTED)
return ISD200_TRANSPORT_ABORTED;
if (result == USB_STOR_XFER_ERROR)
return ISD200_TRANSPORT_ERROR;
}
......@@ -468,11 +458,6 @@ int isd200_Bulk_transport( struct us_data *us, Scsi_Cmnd *srb,
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
(char *) &bcs, US_BULK_CS_WRAP_LEN, NULL);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
return ISD200_TRANSPORT_ABORTED;
}
/* did the attempt to read the CSW fail? */
if (result == USB_STOR_XFER_STALLED) {
......@@ -480,11 +465,6 @@ int isd200_Bulk_transport( struct us_data *us, Scsi_Cmnd *srb,
US_DEBUGP("Attempting to get CSW (2nd try)...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
(char *) &bcs, US_BULK_CS_WRAP_LEN, NULL);
/* if the command was aborted, indicate that */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
return ISD200_TRANSPORT_ABORTED;
}
}
/* if we still have a failure at this point, we're in trouble */
......@@ -688,14 +668,6 @@ void isd200_invoke_transport( struct us_data *us,
srb->result = GOOD << 1;
break;
case ISD200_TRANSPORT_ABORTED:
/* if the command gets aborted by the higher layers, we need to
* short-circuit all other processing
*/
US_DEBUGP("-- transport indicates command was aborted\n");
srb->result = DID_ABORT << 16;
break;
case ISD200_TRANSPORT_FAILED:
US_DEBUGP("-- transport indicates command failure\n");
need_auto_sense = 1;
......
drivers/usb/storage/transport.c
View file @ 0ac962dd
......@@ -562,12 +562,6 @@ int usb_stor_ctrl_transfer(struct us_data *us, unsigned int pipe,
value, index, data, size);
US_DEBUGP("usb_stor_control_msg returned %d\n", result);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("-- transfer aborted\n");
return USB_STOR_XFER_ABORTED;
}
/* a stall indicates a protocol error */
if (result == -EPIPE) {
US_DEBUGP("-- stall on control pipe\n");
......@@ -624,12 +618,6 @@ int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
return USB_STOR_XFER_STALLED;
}
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("-- transfer aborted\n");
return USB_STOR_XFER_ABORTED;
}
/* NAK - that means we've retried a few times already */
if (result == -ETIMEDOUT) {
US_DEBUGP("-- device NAKed\n");
......@@ -1116,15 +1104,6 @@ int usb_stor_CBI_transport(Scsi_Cmnd *srb, struct us_data *us)
if (result != USB_STOR_XFER_GOOD) {
/* Reset flag for status notification */
clear_bit(US_FLIDX_IP_WANTED, &us->flags);
}
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("usb_stor_control_msg(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (result != USB_STOR_XFER_GOOD) {
/* Uh oh... serious problem here */
return USB_STOR_TRANSPORT_ERROR;
}
......@@ -1137,12 +1116,6 @@ int usb_stor_CBI_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_transfer_srb(us, pipe, srb,
transfer_length);
US_DEBUGP("CBI data stage result is 0x%x\n", result);
/* report any errors */
if (result == USB_STOR_XFER_ABORTED) {
clear_bit(US_FLIDX_IP_WANTED, &us->flags);
return USB_STOR_TRANSPORT_ABORTED;
}
if (result == USB_STOR_XFER_ERROR) {
clear_bit(US_FLIDX_IP_WANTED, &us->flags);
return USB_STOR_TRANSPORT_ERROR;
......@@ -1157,7 +1130,7 @@ int usb_stor_CBI_transport(Scsi_Cmnd *srb, struct us_data *us)
/* has the current command been aborted? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("CBI interrupt aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
return USB_STOR_TRANSPORT_ERROR;
}
US_DEBUGP("Got interrupt data (0x%x, 0x%x)\n",
......@@ -1222,13 +1195,6 @@ int usb_stor_CB_transport(Scsi_Cmnd *srb, struct us_data *us)
/* check the return code for the command */
US_DEBUGP("Call to usb_stor_ctrl_transfer() returned %d\n", result);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("usb_stor_CB_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (result != USB_STOR_XFER_GOOD) {
/* Uh oh... serious problem here */
return USB_STOR_TRANSPORT_ERROR;
......@@ -1242,14 +1208,8 @@ int usb_stor_CB_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_transfer_srb(us, pipe, srb,
transfer_length);
US_DEBUGP("CB data stage result is 0x%x\n", result);
/* report any errors */
if (result == USB_STOR_XFER_ABORTED) {
return USB_STOR_TRANSPORT_ABORTED;
}
if (result == USB_STOR_XFER_ERROR) {
if (result == USB_STOR_XFER_ERROR)
return USB_STOR_TRANSPORT_ERROR;
}
}
/* STATUS STAGE */
......@@ -1319,12 +1279,6 @@ int usb_stor_Bulk_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
(char *) &bcb, US_BULK_CB_WRAP_LEN, NULL);
US_DEBUGP("Bulk command transfer result=%d\n", result);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("usb_stor_Bulk_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
......@@ -1336,10 +1290,6 @@ int usb_stor_Bulk_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_transfer_srb(us, pipe, srb,
transfer_length);
US_DEBUGP("Bulk data transfer result 0x%x\n", result);
/* if it was aborted, we need to indicate that */
if (result == USB_STOR_XFER_ABORTED)
return USB_STOR_TRANSPORT_ABORTED;
if (result == USB_STOR_XFER_ERROR)
return USB_STOR_TRANSPORT_ERROR;
}
......@@ -1353,12 +1303,6 @@ int usb_stor_Bulk_transport(Scsi_Cmnd *srb, struct us_data *us)
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
(char *) &bcs, US_BULK_CS_WRAP_LEN, NULL);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("usb_stor_Bulk_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
/* did the attempt to read the CSW fail? */
if (result == USB_STOR_XFER_STALLED) {
......@@ -1366,12 +1310,6 @@ int usb_stor_Bulk_transport(Scsi_Cmnd *srb, struct us_data *us)
US_DEBUGP("Attempting to get CSW (2nd try)...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
(char *) &bcs, US_BULK_CS_WRAP_LEN, NULL);
/* did we abort this command? */
if (atomic_read(&us->sm_state) == US_STATE_ABORTING) {
US_DEBUGP("usb_stor_Bulk_transport(): transfer aborted\n");
return USB_STOR_TRANSPORT_ABORTED;
}
}
/* if we still have a failure at this point, we're in trouble */
......
drivers/usb/storage/transport.h
View file @ 0ac962dd
......@@ -121,7 +121,6 @@ struct bulk_cs_wrap {
#define USB_STOR_XFER_SHORT 1 /* transfered less than expected */
#define USB_STOR_XFER_STALLED 2 /* endpoint stalled */
#define USB_STOR_XFER_ERROR 3 /* transfer died in the middle */
#define USB_STOR_XFER_ABORTED 4 /* transfer canceled */
/*
* Transport return codes
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7