[PATCH v2 1/8] scsi: Pass a struct scsi_driver to scsi_{,un}register_driver()

[Uwe Kleine-König]

This aligns with what other subsystems do, reduces boilerplate a bit for
device drivers and is less error prone.

Reviewed-by: Peter Wang <peter.wang at mediatek.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at baylibre.com>
---
 drivers/scsi/ch.c          | 4 ++--
 drivers/scsi/scsi_sysfs.c  | 4 +++-
 drivers/scsi/sd.c          | 4 ++--
 drivers/scsi/ses.c         | 4 ++--
 drivers/scsi/sr.c          | 4 ++--
 drivers/scsi/st.c          | 4 ++--
 drivers/ufs/core/ufshcd.c  | 4 ++--
 include/scsi/scsi_driver.h | 4 ++--
 8 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index fa07a6f54003..f2b63e4b9b99 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -1014,7 +1014,7 @@ static int __init init_ch_module(void)
 		       SCSI_CHANGER_MAJOR);
 		goto fail1;
 	}
-	rc = scsi_register_driver(&ch_template.gendrv);
+	rc = scsi_register_driver(&ch_template);
 	if (rc < 0)
 		goto fail2;
 	return 0;
@@ -1028,7 +1028,7 @@ static int __init init_ch_module(void)
 
 static void __exit exit_ch_module(void)
 {
-	scsi_unregister_driver(&ch_template.gendrv);
+	scsi_unregister_driver(&ch_template);
 	unregister_chrdev(SCSI_CHANGER_MAJOR, "ch");
 	class_unregister(&ch_sysfs_class);
 	idr_destroy(&ch_index_idr);
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 99eb0a30df61..db0ba68f2e6e 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1554,8 +1554,10 @@ void scsi_remove_target(struct device *dev)
 }
 EXPORT_SYMBOL(scsi_remove_target);
 
-int __scsi_register_driver(struct device_driver *drv, struct module *owner)
+int __scsi_register_driver(struct scsi_driver *sdrv, struct module *owner)
 {
+	struct device_driver *drv = &sdrv->gendrv;
+
 	drv->bus = &scsi_bus_type;
 	drv->owner = owner;
 
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index f50b92e63201..6ea6ee2830a4 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -4417,7 +4417,7 @@ static int __init init_sd(void)
 		goto err_out_class;
 	}
 
-	err = scsi_register_driver(&sd_template.gendrv);
+	err = scsi_register_driver(&sd_template);
 	if (err)
 		goto err_out_driver;
 
@@ -4444,7 +4444,7 @@ static void __exit exit_sd(void)
 
 	SCSI_LOG_HLQUEUE(3, printk("exit_sd: exiting sd driver\n"));
 
-	scsi_unregister_driver(&sd_template.gendrv);
+	scsi_unregister_driver(&sd_template);
 	mempool_destroy(sd_page_pool);
 
 	class_unregister(&sd_disk_class);
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 2c61624cb4b0..f8f5164f3de2 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -921,7 +921,7 @@ static int __init ses_init(void)
 	if (err)
 		return err;
 
-	err = scsi_register_driver(&ses_template.gendrv);
+	err = scsi_register_driver(&ses_template);
 	if (err)
 		goto out_unreg;
 
@@ -934,7 +934,7 @@ static int __init ses_init(void)
 
 static void __exit ses_exit(void)
 {
-	scsi_unregister_driver(&ses_template.gendrv);
+	scsi_unregister_driver(&ses_template);
 	scsi_unregister_interface(&ses_interface);
 }
 
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index add13e306898..2f6bb6355186 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -1001,7 +1001,7 @@ static int __init init_sr(void)
 	rc = register_blkdev(SCSI_CDROM_MAJOR, "sr");
 	if (rc)
 		return rc;
-	rc = scsi_register_driver(&sr_template.gendrv);
+	rc = scsi_register_driver(&sr_template);
 	if (rc)
 		unregister_blkdev(SCSI_CDROM_MAJOR, "sr");
 
@@ -1010,7 +1010,7 @@ static int __init init_sr(void)
 
 static void __exit exit_sr(void)
 {
-	scsi_unregister_driver(&sr_template.gendrv);
+	scsi_unregister_driver(&sr_template);
 	unregister_blkdev(SCSI_CDROM_MAJOR, "sr");
 }
 
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 168f25e4aaa3..45622cfce926 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4576,7 +4576,7 @@ static int __init init_st(void)
 		goto err_class;
 	}
 
-	err = scsi_register_driver(&st_template.gendrv);
+	err = scsi_register_driver(&st_template);
 	if (err)
 		goto err_chrdev;
 
@@ -4592,7 +4592,7 @@ static int __init init_st(void)
 
 static void __exit exit_st(void)
 {
-	scsi_unregister_driver(&st_template.gendrv);
+	scsi_unregister_driver(&st_template);
 	unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
 				 ST_MAX_TAPE_ENTRIES);
 	class_unregister(&st_sysfs_class);
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 80c0b49f30b0..da1e89e95d07 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -11240,7 +11240,7 @@ static int __init ufshcd_core_init(void)
 
 	ufs_debugfs_init();
 
-	ret = scsi_register_driver(&ufs_dev_wlun_template.gendrv);
+	ret = scsi_register_driver(&ufs_dev_wlun_template);
 	if (ret)
 		ufs_debugfs_exit();
 	return ret;
@@ -11249,7 +11249,7 @@ static int __init ufshcd_core_init(void)
 static void __exit ufshcd_core_exit(void)
 {
 	ufs_debugfs_exit();
-	scsi_unregister_driver(&ufs_dev_wlun_template.gendrv);
+	scsi_unregister_driver(&ufs_dev_wlun_template);
 }
 
 module_init(ufshcd_core_init);
diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
index c0e89996bdb3..40aba9a9349a 100644
--- a/include/scsi/scsi_driver.h
+++ b/include/scsi/scsi_driver.h
@@ -25,9 +25,9 @@ struct scsi_driver {
 
 #define scsi_register_driver(drv) \
 	__scsi_register_driver(drv, THIS_MODULE)
-int __scsi_register_driver(struct device_driver *, struct module *);
+int __scsi_register_driver(struct scsi_driver *, struct module *);
 #define scsi_unregister_driver(drv) \
-	driver_unregister(drv);
+	driver_unregister(&(drv)->gendrv);
 
 extern int scsi_register_interface(struct class_interface *);
 #define scsi_unregister_interface(intf) \
-- 
2.47.3