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authorPierre Ossman <drzeus@drzeus.cx>2007-05-16 17:29:21 +0200
committerPierre Ossman <drzeus@drzeus.cx>2007-05-24 06:51:02 +0200
commit9c9f2d63a77325bc050e4ed9255ee8270c067d1a (patch)
tree8f70e19e66f3ef10e9e15e04fc005491596f60b6 /drivers/mmc/card
parent585a2858b970cb6e2e5ca4877eefd18b4dba8ed4 (diff)
downloadop-kernel-dev-9c9f2d63a77325bc050e4ed9255ee8270c067d1a.zip
op-kernel-dev-9c9f2d63a77325bc050e4ed9255ee8270c067d1a.tar.gz
mmc: clean up unused parts of block driver
Remove dead code and unused structs from the block driver. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/card')
-rw-r--r--drivers/mmc/card/block.c18
-rw-r--r--drivers/mmc/card/queue.c35
-rw-r--r--drivers/mmc/card/queue.h8
3 files changed, 8 insertions, 53 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index a7562f7..540ff4b 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -135,23 +135,6 @@ struct mmc_blk_request {
struct mmc_data data;
};
-static int mmc_blk_prep_rq(struct mmc_queue *mq, struct request *req)
-{
- struct mmc_blk_data *md = mq->data;
- int stat = BLKPREP_OK;
-
- /*
- * If we have no device, we haven't finished initialising.
- */
- if (!md || !mq->card) {
- printk(KERN_ERR "%s: killing request - no device/host\n",
- req->rq_disk->disk_name);
- stat = BLKPREP_KILL;
- }
-
- return stat;
-}
-
static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
{
int err;
@@ -460,7 +443,6 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
if (ret)
goto err_putdisk;
- md->queue.prep_fn = mmc_blk_prep_rq;
md->queue.issue_fn = mmc_blk_issue_rq;
md->queue.data = md;
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 2e77963..dd97bc7 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -20,40 +20,21 @@
#define MMC_QUEUE_SUSPENDED (1 << 0)
/*
- * Prepare a MMC request. Essentially, this means passing the
- * preparation off to the media driver. The media driver will
- * create a mmc_io_request in req->special.
+ * Prepare a MMC request. This just filters out odd stuff.
*/
static int mmc_prep_request(struct request_queue *q, struct request *req)
{
- struct mmc_queue *mq = q->queuedata;
- int ret = BLKPREP_KILL;
-
- if (blk_special_request(req)) {
- /*
- * Special commands already have the command
- * blocks already setup in req->special.
- */
- BUG_ON(!req->special);
-
- ret = BLKPREP_OK;
- } else if (blk_fs_request(req) || blk_pc_request(req)) {
- /*
- * Block I/O requests need translating according
- * to the protocol.
- */
- ret = mq->prep_fn(mq, req);
- } else {
- /*
- * Everything else is invalid.
- */
+ /*
+ * We only like normal block requests.
+ */
+ if (!blk_fs_request(req) && !blk_pc_request(req)) {
blk_dump_rq_flags(req, "MMC bad request");
+ return BLKPREP_KILL;
}
- if (ret == BLKPREP_OK)
- req->cmd_flags |= REQ_DONTPREP;
+ req->cmd_flags |= REQ_DONTPREP;
- return ret;
+ return BLKPREP_OK;
}
static int mmc_queue_thread(void *d)
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index c9f139e..1590b3f 100644
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -10,20 +10,12 @@ struct mmc_queue {
struct semaphore thread_sem;
unsigned int flags;
struct request *req;
- int (*prep_fn)(struct mmc_queue *, struct request *);
int (*issue_fn)(struct mmc_queue *, struct request *);
void *data;
struct request_queue *queue;
struct scatterlist *sg;
};
-struct mmc_io_request {
- struct request *rq;
- int num;
- struct mmc_command selcmd; /* mmc_queue private */
- struct mmc_command cmd[4]; /* max 4 commands */
-};
-
extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *);
extern void mmc_cleanup_queue(struct mmc_queue *);
extern void mmc_queue_suspend(struct mmc_queue *);
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