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ide-tape: remove never executed code 

rq->cmd[0] is never set to REQ_IDETAPE_READ_BUFFER so remove
REQ_IDETAPE_READ_BUFFER handling from idetape_create_write_cmd()
and the define itself.

Then remove no longer used idetape_create_read_buffer_cmd()
and IDETAPE_RETRIEVE_FAULTY_BLOCK define.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-02-11 00:32:14 +01:00
parent 56efa7b0e4
commit 31cb212027
1 changed files with 0 additions and 34 deletions
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34
drivers/ide/ide-tape.c
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@ -466,9 +466,6 @@ static void ide_tape_put(struct ide_tape_obj *tape)
/* 0 = no tape is loaded, so we don't rewind after ejecting */ /* 0 = no tape is loaded, so we don't rewind after ejecting */
#define IDETAPE_MEDIUM_PRESENT 9 #define IDETAPE_MEDIUM_PRESENT 9
/* A define for the READ BUFFER command */
#define IDETAPE_RETRIEVE_FAULTY_BLOCK 6
/* Some defines for the SPACE command */ /* Some defines for the SPACE command */
#define IDETAPE_SPACE_OVER_FILEMARK 1 #define IDETAPE_SPACE_OVER_FILEMARK 1
#define IDETAPE_SPACE_TO_EOD 3 #define IDETAPE_SPACE_TO_EOD 3
@ -490,7 +487,6 @@ enum {
REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */
REQ_IDETAPE_READ = (1 << 2), REQ_IDETAPE_READ = (1 << 2),
REQ_IDETAPE_WRITE = (1 << 3), REQ_IDETAPE_WRITE = (1 << 3),
REQ_IDETAPE_READ_BUFFER = (1 << 4),
}; };
/* Error codes returned in rq->errors to the higher part of the driver. */ /* Error codes returned in rq->errors to the higher part of the driver. */
@ -1523,29 +1519,6 @@ static void idetape_create_read_cmd(idetape_tape_t *tape, idetape_pc_t *pc,
set_bit(PC_DMA_RECOMMENDED, &pc->flags); set_bit(PC_DMA_RECOMMENDED, &pc->flags);
} }
static void idetape_create_read_buffer_cmd(idetape_tape_t *tape,
idetape_pc_t *pc, struct idetape_bh *bh)
{
int size = 32768;
struct idetape_bh *p = bh;
idetape_init_pc(pc);
pc->c[0] = READ_BUFFER;
pc->c[1] = IDETAPE_RETRIEVE_FAULTY_BLOCK;
pc->c[7] = size >> 8;
pc->c[8] = size & 0xff;
pc->callback = &idetape_pc_callback;
pc->bh = bh;
atomic_set(&bh->b_count, 0);
pc->buffer = NULL;
while (p) {
atomic_set(&p->b_count, 0);
p = p->b_reqnext;
}
pc->request_transfer = size;
pc->buffer_size = size;
}
static void idetape_create_write_cmd(idetape_tape_t *tape, idetape_pc_t *pc, static void idetape_create_write_cmd(idetape_tape_t *tape, idetape_pc_t *pc,
unsigned int length, struct idetape_bh *bh) unsigned int length, struct idetape_bh *bh)
{ {
@ -1655,13 +1628,6 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
(struct idetape_bh *)rq->special); (struct idetape_bh *)rq->special);
goto out; goto out;
} }
if (rq->cmd[0] & REQ_IDETAPE_READ_BUFFER) {
tape->postpone_cnt = 0;
pc = idetape_next_pc_storage(drive);
idetape_create_read_buffer_cmd(tape, pc,
(struct idetape_bh *)rq->special);
goto out;
}
if (rq->cmd[0] & REQ_IDETAPE_PC1) { if (rq->cmd[0] & REQ_IDETAPE_PC1) {
pc = (idetape_pc_t *) rq->buffer; pc = (idetape_pc_t *) rq->buffer;
rq->cmd[0] &= ~(REQ_IDETAPE_PC1); rq->cmd[0] &= ~(REQ_IDETAPE_PC1);