bsg: provide bsg_remove_queue() helper

All drivers do unregister + cleanup, provide a helper for that.

Cc: linux-scsi@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index 1da011e..3f2e9a1 100644 (file)
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -296,6 +296,15 @@ static void bsg_exit_rq(struct request_queue *q, struct request *req)
        kfree(job->reply);
 }
 
+void bsg_remove_queue(struct request_queue *q)
+{
+       if (q) {
+               bsg_unregister_queue(q);
+               blk_cleanup_queue(q);
+       }
+}
+EXPORT_SYMBOL_GPL(bsg_remove_queue);
+
 /**
  * bsg_setup_queue - Create and add the bsg hooks so we can receive requests
  * @dev: device to attach bsg device to

diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 98aaffb..638f83a 100644 (file)
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -3851,10 +3851,7 @@ fc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport)
 static void
 fc_bsg_remove(struct request_queue *q)
 {
-       if (q) {
-               bsg_unregister_queue(q);
-               blk_cleanup_queue(q);
-       }
+       bsg_remove_queue(q);
 }
 
 

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 26b11a7..ff12302 100644 (file)
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1576,10 +1576,7 @@ static int iscsi_remove_host(struct transport_container *tc,
        struct Scsi_Host *shost = dev_to_shost(dev);
        struct iscsi_cls_host *ihost = shost->shost_data;
 
-       if (ihost->bsg_q) {
-               bsg_unregister_queue(ihost->bsg_q);
-               blk_cleanup_queue(ihost->bsg_q);
-       }
+       bsg_remove_queue(ihost->bsg_q);
        return 0;
 }
 

diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index cf6d478..692b469 100644 (file)
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -246,11 +246,7 @@ static int sas_host_remove(struct transport_container *tc, struct device *dev,
        struct Scsi_Host *shost = dev_to_shost(dev);
        struct request_queue *q = to_sas_host_attrs(shost)->q;
 
-       if (q) {
-               bsg_unregister_queue(q);
-               blk_cleanup_queue(q);
-       }
-
+       bsg_remove_queue(q);
        return 0;
 }
 

diff --git a/drivers/scsi/ufs/ufs_bsg.c b/drivers/scsi/ufs/ufs_bsg.c
index dd0e970..775bb4e 100644 (file)
--- a/drivers/scsi/ufs/ufs_bsg.c
+++ b/drivers/scsi/ufs/ufs_bsg.c
@@ -157,7 +157,7 @@ void ufs_bsg_remove(struct ufs_hba *hba)
        if (!hba->bsg_queue)
                return;
 
-       bsg_unregister_queue(hba->bsg_queue);
+       bsg_remove_queue(hba->bsg_queue);
 
        device_del(bsg_dev);
        put_device(bsg_dev);

diff --git a/include/linux/bsg-lib.h b/include/linux/bsg-lib.h
index b13ae14..9c9b134 100644 (file)
--- a/include/linux/bsg-lib.h
+++ b/include/linux/bsg-lib.h
@@ -73,6 +73,7 @@ void bsg_job_done(struct bsg_job *job, int result,
                  unsigned int reply_payload_rcv_len);
 struct request_queue *bsg_setup_queue(struct device *dev, const char *name,
                bsg_job_fn *job_fn, rq_timed_out_fn *timeout, int dd_job_size);
+void bsg_remove_queue(struct request_queue *q);
 void bsg_job_put(struct bsg_job *job);
 int __must_check bsg_job_get(struct bsg_job *job);