ide-floppy: use an xfer_func_t and io_buf_t typedefs in order to unify rw

Also, move xfer_func_t typedef to the ide.h since it is used by two drivers
now (more coming).

Bart:
- use __func__ while at it

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

1 files changed, 16 insertions, 17 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 5ea1b1b86c4e..78afc493e1fd 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -516,16 +516,17 @@ static void idefloppy_retry_pc (ide_drive_t *drive)
         idefloppy_queue_pc_head(drive, pc, rq);
 }
 
-/*
- *      idefloppy_pc_intr is the usual interrupt handler which will be called
- *      during a packet command.
- */
+typedef void (io_buf_t)(ide_drive_t *, idefloppy_pc_t *, unsigned int);
+
+/* The usual interrupt handler called during a packet command. */
 static ide_startstop_t idefloppy_pc_intr (ide_drive_t *drive)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
         ide_hwif_t *hwif = drive->hwif;
         idefloppy_pc_t *pc = floppy->pc;
         struct request *rq = pc->rq;
+        xfer_func_t *xferfunc;
+        io_buf_t *iobuf_func;
         unsigned int temp;
         int dma_error = 0;
         u16 bcount;
@@ -592,7 +593,7 @@ static ide_startstop_t idefloppy_pc_intr (ide_drive_t *drive)
         ireason = hwif->INB(IDE_IREASON_REG);
 
         if (ireason & CD) {
-                printk(KERN_ERR "ide-floppy: CoD != 0 in idefloppy_pc_intr\n");
+                printk(KERN_ERR "ide-floppy: CoD != 0 in %s\n", __func__);
                 return ide_do_reset(drive);
         }
         if (((ireason & IO) == IO) == test_bit(PC_WRITING, &pc->flags)) {
@@ -624,20 +625,18 @@ static ide_startstop_t idefloppy_pc_intr (ide_drive_t *drive)
                 }
         }
         if (test_bit(PC_WRITING, &pc->flags)) {
-                if (pc->buffer != NULL)
-                        /* Write the current buffer */
-                        hwif->atapi_output_bytes(drive, pc->current_position,
-                                                 bcount);
-                else
-                        idefloppy_output_buffers(drive, pc, bcount);
+                xferfunc = hwif->atapi_output_bytes;
+                iobuf_func = &idefloppy_output_buffers;
         } else {
-                if (pc->buffer != NULL)
-                        /* Read the current buffer */
-                        hwif->atapi_input_bytes(drive, pc->current_position,
-                                                bcount);
-                else
-                        idefloppy_input_buffers(drive, pc, bcount);
+                xferfunc = hwif->atapi_input_bytes;
+                iobuf_func = &idefloppy_input_buffers;
         }
+
+        if (pc->buffer)
+                xferfunc(drive, pc->current_position, bcount);
+        else
+                iobuf_func(drive, pc, bcount);
+
         /* Update the current position */
         pc->actually_transferred += bcount;
         pc->current_position += bcount;