ide-floppy: merge callbacks

The appropriate functionality of the callback is established through querying
the ATAPI packet command in pc->c[0].

While at it, simplify if (floppy->failed_pc)-branch to be found in the original
idefloppy_request_sense_callback().

Bart:
- keep handling for blk_pc_request() requests unchanged + add FIXME
- add uptodate variable + leave just one idefloppy_end_request() call
- add newline to the debug message

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 23 insertions, 46 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index dae1c90d421f..2058a6f3f331 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -312,50 +312,38 @@ static struct request *idefloppy_next_rq_storage(ide_drive_t *drive)
         return (&floppy->rq_stack[floppy->rq_stack_index++]);
 }
 
-static void idefloppy_request_sense_callback(ide_drive_t *drive)
+static void ide_floppy_callback(ide_drive_t *drive)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
-        u8 *buf = floppy->pc->buf;
+        struct ide_atapi_pc *pc = floppy->pc;
+        int uptodate = pc->error ? 0 : 1;
 
         debug_log("Reached %s\n", __func__);
 
-        if (!floppy->pc->error) {
-                floppy->sense_key = buf[2] & 0x0F;
-                floppy->asc = buf[12];
-                floppy->ascq = buf[13];
-                floppy->progress_indication = buf[15] & 0x80 ?
-                        (u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
+        if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 ||
+            (pc->rq && blk_pc_request(pc->rq)))
+                uptodate = 1; /* FIXME */
+        else if (pc->c[0] == GPCMD_REQUEST_SENSE) {
+                u8 *buf = floppy->pc->buf;
 
-                if (floppy->failed_pc)
-                        debug_log("pc = %x, sense key = %x, asc = %x,"
-                                        " ascq = %x\n",
-                                        floppy->failed_pc->c[0],
-                                        floppy->sense_key,
-                                        floppy->asc,
-                                        floppy->ascq);
-                else
-                        debug_log("sense key = %x, asc = %x, ascq = %x\n",
-                                        floppy->sense_key,
-                                        floppy->asc,
-                                        floppy->ascq);
+                if (!pc->error) {
+                        floppy->sense_key = buf[2] & 0x0F;
+                        floppy->asc = buf[12];
+                        floppy->ascq = buf[13];
+                        floppy->progress_indication = buf[15] & 0x80 ?
+                                (u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
 
+                        if (floppy->failed_pc)
+                                debug_log("pc = %x, ", floppy->failed_pc->c[0]);
 
-                idefloppy_end_request(drive, 1, 0);
-        } else {
-                printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting"
-                                " request!\n");
-                idefloppy_end_request(drive, 0, 0);
+                        debug_log("sense key = %x, asc = %x, ascq = %x\n",
+                                  floppy->sense_key, floppy->asc, floppy->ascq);
+                } else
+                        printk(KERN_ERR "Error in REQUEST SENSE itself - "
+                                        "Aborting request!\n");
         }
-}
 
-/* General packet command callback function. */
-static void idefloppy_pc_callback(ide_drive_t *drive)
-{
-        idefloppy_floppy_t *floppy = drive->driver_data;
-
-        debug_log("Reached %s\n", __func__);
-
-        idefloppy_end_request(drive, floppy->pc->error ? 0 : 1, 0);
+        idefloppy_end_request(drive, uptodate, 0);
 }
 
 static void idefloppy_init_pc(struct ide_atapi_pc *pc)
@@ -366,7 +354,7 @@ static void idefloppy_init_pc(struct ide_atapi_pc *pc)
         pc->req_xfer = 0;
         pc->buf = pc->pc_buf;
         pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE;
-        pc->idefloppy_callback = &idefloppy_pc_callback;
+        pc->idefloppy_callback = &ide_floppy_callback;
 }
 
 static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
@@ -375,7 +363,6 @@ static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
         pc->c[0] = GPCMD_REQUEST_SENSE;
         pc->c[4] = 255;
         pc->req_xfer = 18;
-        pc->idefloppy_callback = &idefloppy_request_sense_callback;
 }
 
 /*
@@ -668,14 +655,6 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
         }
 }
 
-static void idefloppy_rw_callback(ide_drive_t *drive)
-{
-        debug_log("Reached %s\n", __func__);
-
-        idefloppy_end_request(drive, 1, 0);
-        return;
-}
-
 static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent)
 {
         debug_log("creating prevent removal command, prevent = %d\n", prevent);
@@ -770,7 +749,6 @@ static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy,
         put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]);
         put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]);
 
-        pc->idefloppy_callback = &idefloppy_rw_callback;
         pc->rq = rq;
         pc->b_count = cmd == READ ? 0 : rq->bio->bi_size;
         if (rq->cmd_flags & REQ_RW)
@@ -784,7 +762,6 @@ static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
                 struct ide_atapi_pc *pc, struct request *rq)
 {
         idefloppy_init_pc(pc);
-        pc->idefloppy_callback = &idefloppy_rw_callback;
         memcpy(pc->c, rq->cmd, sizeof(pc->c));
         pc->rq = rq;
         pc->b_count = rq->data_len;