[SCSI] always handle REQ_BLOCK_PC requests in common code

LLDDs should never see REQ_BLOCK_PC requests, we can handle them just
fine in the core code.  There is a small behaviour change in that some
check in sr's rw_intr are bypassed, but I consider the old behaviour
a bug.

Mike found this cleanup opportunity and provdided early patches, so all
the credit goes to him, even if I redid the patches from scratch beause
that was easier than forward-porting the old patches.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 0 insertions, 21 deletions

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 18a3b756c63c..dd8050392d01 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -238,8 +238,6 @@ static void rw_intr(struct scsi_cmnd * SCpnt)
                 case ILLEGAL_REQUEST:
                         if (!(SCpnt->sense_buffer[0] & 0x90))
                                 break;
-                        if (!blk_fs_request(SCpnt->request))
-                                break;
                         error_sector = (SCpnt->sense_buffer[3] << 24) |
                                 (SCpnt->sense_buffer[4] << 16) |
                                 (SCpnt->sense_buffer[5] << 8) |
@@ -318,23 +316,6 @@ static int sr_init_command(struct scsi_cmnd * SCpnt)
         }
 
         /*
-         * these are already setup, just copy cdb basically
-         */
-        if (SCpnt->request->flags & REQ_BLOCK_PC) {
-                scsi_setup_blk_pc_cmnd(SCpnt);
-
-                if (SCpnt->timeout_per_command)
-                        timeout = SCpnt->timeout_per_command;
-
-                goto queue;
-        }
-
-        if (!(SCpnt->request->flags & REQ_CMD)) {
-                blk_dump_rq_flags(SCpnt->request, "sr unsup command");
-                return 0;
-        }
-
-        /*
          * we do lazy blocksize switching (when reading XA sectors,
          * see CDROMREADMODE2 ioctl) 
          */
@@ -422,8 +403,6 @@ static int sr_init_command(struct scsi_cmnd * SCpnt)
          */
         SCpnt->transfersize = cd->device->sector_size;
         SCpnt->underflow = this_count << 9;
-
-queue:
         SCpnt->allowed = MAX_RETRIES;
         SCpnt->timeout_per_command = timeout;