linux-kernel - [PATCH] scsi: move function declarationes to scsi

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Message-Id: <1472317197-7865-1-git-send-email-baoyou.xie@linaro.org>
Date:   Sun, 28 Aug 2016 00:59:57 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     jejb@...ux.vnet.ibm.com, martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        arnd@...aro.org, baoyou.xie@...aro.org, xie.baoyou@....com.cn
Subject: [PATCH] scsi: move function declarationes to scsi_priv.h

We get 2 warnings about global functions without a declaration
in the scsi driver when building with W=1:
drivers/scsi/scsi_lib.c:467:6: warning: no previous prototype for 'scsi_requeue_run_queue' [-Wmissing-prototypes]
drivers/scsi/scsi_lib.c:2609:6: warning: no previous prototype for 'scsi_evt_thread' [-Wmissing-prototypes]

in fact, both functiones are declared in drivers/scsi/scsi_scan.c
but need to move the declarationes into scsi_priv.h.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/scsi/scsi_priv.h | 2 ++
 drivers/scsi/scsi_scan.c | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 57a4b99..ff3cde3 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -85,12 +85,14 @@ extern void scsi_device_unbusy(struct scsi_device *sdev);
 extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
 extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
 extern void scsi_run_host_queues(struct Scsi_Host *shost);
+extern void scsi_requeue_run_queue(struct work_struct *work);
 extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
 extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev);
 extern int scsi_mq_setup_tags(struct Scsi_Host *shost);
 extern void scsi_mq_destroy_tags(struct Scsi_Host *shost);
 extern int scsi_init_queue(void);
 extern void scsi_exit_queue(void);
+extern void scsi_evt_thread(struct work_struct *work);
 struct request_queue;
 struct request;
 extern struct kmem_cache *scsi_sdb_cache;
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index e0a78f5..212e98d 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -217,8 +217,6 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
 	struct scsi_device *sdev;
 	int display_failure_msg = 1, ret;
 	struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
-	extern void scsi_evt_thread(struct work_struct *work);
-	extern void scsi_requeue_run_queue(struct work_struct *work);
 
 	sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size,
 		       GFP_ATOMIC);
-- 
2.7.4