sbp2: remove manipulation of inquiry response
This code became ineffective a few Linux releases ago and is not
required anyway.
Note from Christoph Hellwig: scsi_cmnd.request_buffer is always a
scatterlist these days. Checking random bites into it and then
mangling the data in sbp2_check_sbp2_response will cause really bad
memory corruption when you're not lucky enough to have the check not
trigger by luck.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index c30e03a..11c353a 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -2112,33 +2112,6 @@
}
/*
- * This function is called after a command is completed, in order to do any necessary SBP-2
- * response data translations for the SCSI stack
- */
-static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
- struct scsi_cmnd *SCpnt)
-{
- u8 *scsi_buf = SCpnt->request_buffer;
-
- SBP2_DEBUG_ENTER();
-
- if (SCpnt->cmnd[0] == INQUIRY && (SCpnt->cmnd[1] & 3) == 0) {
- /*
- * Make sure data length is ok. Minimum length is 36 bytes
- */
- if (scsi_buf[4] == 0) {
- scsi_buf[4] = 36 - 5;
- }
-
- /*
- * Fix ansi revision and response data format
- */
- scsi_buf[2] |= 2;
- scsi_buf[3] = (scsi_buf[3] & 0xf0) | 2;
- }
-}
-
-/*
* This function deals with status writes from the SBP-2 device
*/
static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
@@ -2477,13 +2450,6 @@
}
/*
- * Take care of any sbp2 response data mucking here (RBC stuff, etc.)
- */
- if (SCpnt->result == DID_OK << 16) {
- sbp2_check_sbp2_response(scsi_id, SCpnt);
- }
-
- /*
* If a bus reset is in progress and there was an error, complete
* the command as busy so that it will get retried.
*/
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index f4ccc9d..2f53b16 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -395,9 +395,8 @@
static int sbp2_send_command(struct scsi_id_instance_data *scsi_id,
struct scsi_cmnd *SCpnt,
void (*done)(struct scsi_cmnd *));
-static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, unchar *sense_data);
-static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
- struct scsi_cmnd *SCpnt);
+static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status,
+ unchar *sense_data);
static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id,
struct unit_directory *ud);
static int sbp2_set_busy_timeout(struct scsi_id_instance_data *scsi_id);