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Subject[PATCH] ide-floppy: merge callbacks
From
commit d1f1f84f413ab00cb2fec48170d022fcd900e214
Author: Borislav Petkov <petkovbb@gmail.com>
Date: Wed Feb 13 20:26:56 2008 +0100

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().
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 5f133df..1365310 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -313,50 +313,39 @@ 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;

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 (floppy->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);
-
-
- idefloppy_end_request(drive, 1, 0);
- } else {
- printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting"
- " request!\n");
- idefloppy_end_request(drive, 0, 0);
- }
-}
+ 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;

-/* General packet command callback function. */
-static void idefloppy_pc_callback(ide_drive_t *drive)
-{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ if (floppy->failed_pc)
+ debug_log("pc = %x, ", floppy->failed_pc->c[0]);

- debug_log("Reached %s\n", __func__);
+ debug_log("sense key = %x, asc = %x, ascq = %x\n",
+ floppy->sense_key, floppy->asc, floppy->ascq);

- idefloppy_end_request(drive, floppy->pc->error ? 0 : 1, 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);
+ }
+ } else if (floppy->pc->c[0] == GPCMD_READ_10 ||
+ floppy->pc->c[0] == GPCMD_WRITE_10)
+ idefloppy_end_request(drive, 1, 0);
+ else
+ idefloppy_end_request(drive, floppy->pc->error ? 0 : 1, 0);
}

static void idefloppy_init_pc(struct ide_atapi_pc *pc)
@@ -367,7 +356,7 @@ 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)
@@ -376,7 +365,6 @@ 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;
}

/*
@@ -697,14 +685,6 @@ 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);
@@ -799,7 +779,6 @@ 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)
@@ -813,7 +792,6 @@ 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;

--
Regards/Gruß,
Boris.
--
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