[PATCH v3 11/16] scsi: fc: Use bsg_destroy_job

From: Johannes Thumshirn
Date: Thu Oct 13 2016 - 11:04:19 EST


fc_destroy_bsgjob() and bsg_destroy_job() are now 1:1 copies, so use the
later. As bsg_destroy_job() comes from bsg-lib we need to select it in Kconfig
once CONFOG_SCSI_FC_ATTRS is active.

Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
---
block/bsg-lib.c | 7 +++++--
drivers/scsi/Kconfig | 1 +
drivers/scsi/scsi_transport_fc.c | 23 ++---------------------
include/linux/bsg-lib.h | 1 +
4 files changed, 9 insertions(+), 23 deletions(-)

diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index 632fb40..9f1e8fd 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -32,9 +32,12 @@
* bsg_destroy_job - routine to teardown/delete a bsg job
* @job: bsg_job that is to be torn down
*/
-static void bsg_destroy_job(struct kref *kref)
+void bsg_destroy_job(struct kref *kref)
{
struct bsg_job *job = container_of(kref, struct bsg_job, kref);
+ struct request *rq = job->req;
+
+ blk_end_request_all(rq, rq->errors);

put_device(job->dev); /* release reference for the request */

@@ -42,6 +45,7 @@ static void bsg_destroy_job(struct kref *kref)
kfree(job->reply_payload.sg_list);
kfree(job);
}
+EXPORT_SYMBOL_GPL(bsg_destroy_job);

/**
* bsg_job_done - completion routine for bsg requests
@@ -85,7 +89,6 @@ static void bsg_softirq_done(struct request *rq)
{
struct bsg_job *job = rq->special;

- blk_end_request_all(rq, rq->errors);
kref_put(&job->kref, bsg_destroy_job);
}

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 3e2bdb9..2774756 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -263,6 +263,7 @@ config SCSI_SPI_ATTRS
config SCSI_FC_ATTRS
tristate "FiberChannel Transport Attributes"
depends on SCSI && NET
+ select BLK_DEV_BSGLIB
select SCSI_NETLINK
help
If you wish to export transport-specific information about
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index eadc80f..d2d0a27 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -30,6 +30,7 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/kernel.h>
+#include <linux/bsg-lib.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
@@ -3554,26 +3555,6 @@ struct fc_vport *
* BSG support
*/

-
-/**
- * fc_destroy_bsgjob - routine to teardown/delete a fc bsg job
- * @job: fc_bsg_job that is to be torn down
- */
-static void
-fc_destroy_bsgjob(struct kref *kref)
-{
- struct bsg_job *job = container_of(kref, struct bsg_job, kref);
- struct request *rq = job->req;
-
- blk_end_request_all(rq, rq->errors);
-
- put_device(job->dev); /* release reference for the request */
-
- kfree(job->request_payload.sg_list);
- kfree(job->reply_payload.sg_list);
- kfree(job);
-}
-
/**
* fc_bsg_jobdone - completion routine for bsg requests that the LLD has
* completed
@@ -3642,7 +3623,7 @@ static void fc_bsg_softirq_done(struct request *rq)
/* call LLDD to abort the i/o as it has timed out */
err = i->f->bsg_timeout(job);
if (err == -EAGAIN) {
- kref_put(&job->kref, fc_destroy_bsgjob);
+ kref_put(&job->kref, bsg_destroy_job);
return BLK_EH_RESET_TIMER;
} else if (err)
printk(KERN_ERR "ERROR: FC BSG request timeout - LLD "
diff --git a/include/linux/bsg-lib.h b/include/linux/bsg-lib.h
index 58e0717..67f7de6 100644
--- a/include/linux/bsg-lib.h
+++ b/include/linux/bsg-lib.h
@@ -69,5 +69,6 @@ void bsg_job_done(struct bsg_job *job, int result,
int bsg_setup_queue(struct device *dev, struct request_queue *q, char *name,
bsg_job_fn *job_fn, int dd_job_size);
void bsg_request_fn(struct request_queue *q);
+void bsg_destroy_job(struct kref *kref);

#endif
--
1.8.5.6