From 31cb2120270cb43403428de67d8cb5caeb58dfd2 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 11 Feb 2008 00:32:14 +0100 Subject: [PATCH] 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 Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-tape.c | 34 ---------------------------------- 1 file changed, 34 deletions(-) diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 49dd2e7bae..0598ecfd5f 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -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 */ #define IDETAPE_MEDIUM_PRESENT 9 -/* A define for the READ BUFFER command */ -#define IDETAPE_RETRIEVE_FAULTY_BLOCK 6 - /* Some defines for the SPACE command */ #define IDETAPE_SPACE_OVER_FILEMARK 1 #define IDETAPE_SPACE_TO_EOD 3 @@ -490,7 +487,6 @@ enum { REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ REQ_IDETAPE_READ = (1 << 2), REQ_IDETAPE_WRITE = (1 << 3), - REQ_IDETAPE_READ_BUFFER = (1 << 4), }; /* 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); } -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, 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); 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) { pc = (idetape_pc_t *) rq->buffer; rq->cmd[0] &= ~(REQ_IDETAPE_PC1); -- 2.39.5