block, nvme: Introduce blk_mq_req_flags_t
Several block layer and NVMe core functions accept a combination
of BLK_MQ_REQ_* flags through the 'flags' argument but there is
no verification at compile time whether the right type of block
layer flags is passed. Make it possible for sparse to verify this.
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: linux-nvme@lists.infradead.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 683d890..878d5c0 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -305,7 +305,7 @@ static void nvme_put_ns(struct nvme_ns *ns)
}
struct request *nvme_alloc_request(struct request_queue *q,
- struct nvme_command *cmd, unsigned int flags, int qid)
+ struct nvme_command *cmd, blk_mq_req_flags_t flags, int qid)
{
unsigned op = nvme_is_write(cmd) ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN;
struct request *req;
@@ -573,7 +573,8 @@ EXPORT_SYMBOL_GPL(nvme_setup_cmd);
*/
int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
union nvme_result *result, void *buffer, unsigned bufflen,
- unsigned timeout, int qid, int at_head, int flags)
+ unsigned timeout, int qid, int at_head,
+ blk_mq_req_flags_t flags)
{
struct request *req;
int ret;