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authorBart Van Assche <bart.vanassche@wdc.com>2017-08-17 13:13:36 -0700
committerJens Axboe <axboe@kernel.dk>2017-08-18 08:45:29 -0600
commite2bb5548279a95cf5b2ecc7cb070a743aade3445 (patch)
tree7aef9601137749b13666745f3d89564c6490d4c0 /drivers/block/skd_main.c
parenta3db102def237c27c6f2a2a6a58b79b2f2d4e39f (diff)
skd: Remove several local variables
This patch does not change any functionality but makes the code more brief. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/skd_main.c')
-rw-r--r--drivers/block/skd_main.c37
1 files changed, 7 insertions, 30 deletions
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 610c8979dc7e..a732bb8040f4 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -44,12 +44,6 @@
static int skd_dbg_level;
static int skd_isr_comp_limit = 4;
-enum {
- SKD_FLUSH_INITIALIZER,
- SKD_FLUSH_ZERO_SIZE_FIRST,
- SKD_FLUSH_DATA_SECOND,
-};
-
#define SKD_ASSERT(expr) \
do { \
if (unlikely(!(expr))) { \
@@ -497,31 +491,15 @@ static void skd_process_request(struct request *req, bool last)
struct skd_request_context *const skreq = blk_mq_rq_to_pdu(req);
struct skd_scsi_request *scsi_req;
unsigned long flags;
- unsigned long io_flags;
- u32 lba;
- u32 count;
- int data_dir;
- __be64 be_dmaa;
- int flush, fua;
+ const u32 lba = blk_rq_pos(req);
+ const u32 count = blk_rq_sectors(req);
+ const int data_dir = rq_data_dir(req);
WARN_ONCE(tag >= skd_max_queue_depth, "%#x > %#x (nr_requests = %lu)\n",
tag, skd_max_queue_depth, q->nr_requests);
SKD_ASSERT(skreq->state == SKD_REQ_STATE_IDLE);
- flush = fua = 0;
-
- lba = (u32)blk_rq_pos(req);
- count = blk_rq_sectors(req);
- data_dir = rq_data_dir(req);
- io_flags = req->cmd_flags;
-
- if (req_op(req) == REQ_OP_FLUSH)
- flush++;
-
- if (io_flags & REQ_FUA)
- fua++;
-
dev_dbg(&skdev->pdev->dev,
"new req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n", req, lba,
lba, count, count, data_dir);
@@ -568,19 +546,18 @@ static void skd_process_request(struct request *req, bool last)
scsi_req = &skmsg->msg_buf->scsi[fmh->num_protocol_cmds_coalesced];
memset(scsi_req, 0, sizeof(*scsi_req));
- be_dmaa = cpu_to_be64(skreq->sksg_dma_address);
-
scsi_req->hdr.tag = skreq->id;
- scsi_req->hdr.sg_list_dma_address = be_dmaa;
+ scsi_req->hdr.sg_list_dma_address =
+ cpu_to_be64(skreq->sksg_dma_address);
- if (flush == SKD_FLUSH_ZERO_SIZE_FIRST) {
+ if (req_op(req) == REQ_OP_FLUSH) {
skd_prep_zerosize_flush_cdb(scsi_req, skreq);
SKD_ASSERT(skreq->flush_cmd == 1);
} else {
skd_prep_rw_cdb(scsi_req, data_dir, lba, count);
}
- if (fua)
+ if (req->cmd_flags & REQ_FUA)
scsi_req->cdb[1] |= SKD_FUA_NV;
scsi_req->hdr.sg_list_len_bytes = cpu_to_be32(skreq->sg_byte_count);