aboutsummaryrefslogtreecommitdiff
path: root/drivers/ide
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2018-11-09 14:42:35 +0100
committerJens Axboe <axboe@kernel.dk>2018-11-09 19:17:13 -0700
commit535ac5d3fe63b9ea1dda379f606f9d0d377d7184 (patch)
treea007c66ce4e12a4086085f48dddf1946e67f85f0 /drivers/ide
parent9d037ad707ed6069fbea4e38e6ee37e027b13f1d (diff)
downloadlinux-stericsson-535ac5d3fe63b9ea1dda379f606f9d0d377d7184.tar.gz
ide: cleanup ->prep_rq calling convention
The return value is just used as a binary yes/no decision, so switch it to a bool instead of the old BLKPREP_* values returned as an int. Also clean up a few related comments. Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-cd.c22
-rw-r--r--drivers/ide/ide-disk.c8
-rw-r--r--drivers/ide/ide-io.c4
3 files changed, 17 insertions, 17 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 4ecaf2ace4cb..69c1aede5f93 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -527,8 +527,8 @@ static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
return false;
}
-/* standard prep_rq_fn that builds 10 byte cmds */
-static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
+/* standard prep_rq that builds 10 byte cmds */
+static bool ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
{
int hard_sect = queue_logical_block_size(q);
long block = (long)blk_rq_pos(rq) / (hard_sect >> 9);
@@ -554,14 +554,14 @@ static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
req->cmd[7] = (blocks >> 8) & 0xff;
req->cmd[8] = blocks & 0xff;
req->cmd_len = 10;
- return BLKPREP_OK;
+ return true;
}
/*
* Most of the SCSI commands are supported directly by ATAPI devices.
* This transform handles the few exceptions.
*/
-static int ide_cdrom_prep_pc(struct request *rq)
+static bool ide_cdrom_prep_pc(struct request *rq)
{
u8 *c = scsi_req(rq)->cmd;
@@ -575,7 +575,7 @@ static int ide_cdrom_prep_pc(struct request *rq)
c[1] &= 0xe0;
c[0] += (READ_10 - READ_6);
scsi_req(rq)->cmd_len = 10;
- return BLKPREP_OK;
+ return true;
}
/*
@@ -585,13 +585,13 @@ static int ide_cdrom_prep_pc(struct request *rq)
*/
if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
scsi_req(rq)->result = ILLEGAL_REQUEST;
- return BLKPREP_KILL;
+ return false;
}
- return BLKPREP_OK;
+ return true;
}
-static int ide_cdrom_prep_fn(ide_drive_t *drive, struct request *rq)
+static bool ide_cdrom_prep_rq(ide_drive_t *drive, struct request *rq)
{
if (!blk_rq_is_passthrough(rq)) {
scsi_req_init(scsi_req(rq));
@@ -600,7 +600,7 @@ static int ide_cdrom_prep_fn(ide_drive_t *drive, struct request *rq)
} else if (blk_rq_is_scsi(rq))
return ide_cdrom_prep_pc(rq);
- return 0;
+ return true;
}
static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
@@ -818,7 +818,7 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
* We may be retrying this request after an error. Fix up any
* weirdness which might be present in the request packet.
*/
- ide_cdrom_prep_fn(drive, rq);
+ ide_cdrom_prep_rq(drive, rq);
}
/* fs requests *must* be hardware frame aligned */
@@ -1521,7 +1521,7 @@ static int ide_cdrom_setup(ide_drive_t *drive)
ide_debug_log(IDE_DBG_PROBE, "enter");
- drive->prep_rq = ide_cdrom_prep_fn;
+ drive->prep_rq = ide_cdrom_prep_rq;
blk_queue_dma_alignment(q, 31);
blk_queue_update_dma_pad(q, 15);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index f8567c8c9dd1..724db9af0d82 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -427,12 +427,12 @@ static void ide_disk_unlock_native_capacity(ide_drive_t *drive)
drive->dev_flags |= IDE_DFLAG_NOHPA; /* disable HPA on resume */
}
-static int idedisk_prep_fn(ide_drive_t *drive, struct request *rq)
+static bool idedisk_prep_rq(ide_drive_t *drive, struct request *rq)
{
struct ide_cmd *cmd;
if (req_op(rq) != REQ_OP_FLUSH)
- return BLKPREP_OK;
+ return true;
if (rq->special) {
cmd = rq->special;
@@ -458,7 +458,7 @@ static int idedisk_prep_fn(ide_drive_t *drive, struct request *rq)
rq->special = cmd;
cmd->rq = rq;
- return BLKPREP_OK;
+ return true;
}
ide_devset_get(multcount, mult_count);
@@ -547,7 +547,7 @@ static void update_flush(ide_drive_t *drive)
if (barrier) {
wc = true;
- drive->prep_rq = idedisk_prep_fn;
+ drive->prep_rq = idedisk_prep_rq;
}
}
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 5093c605c91c..64e72640acf8 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -326,7 +326,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq)
goto kill_rq;
}
- if (drive->prep_rq && drive->prep_rq(drive, rq))
+ if (drive->prep_rq && !drive->prep_rq(drive, rq))
return ide_stopped;
if (ata_pm_request(rq))
@@ -508,7 +508,7 @@ repeat:
/*
* we know that the queue isn't empty, but this can happen
- * if the q->prep_rq_fn() decides to kill a request
+ * if ->prep_rq() decides to kill a request
*/
if (!rq) {
rq = bd->rq;