driver core: class: remove struct class_interface * from callbacks

The add_dev and remove_dev callbacks in struct class_interface currently
pass in a pointer back to the class_interface structure that is calling
them, but none of the callback implementations actually use this pointer
as it is pointless (the structure is known, the driver passed it in in
the first place if it is really needed again.)

So clean this up and just remove the pointer from the callbacks and fix
up all callback functions.

Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: John Stultz <jstultz@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Wang Weiyang <wangweiyang2@huawei.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Jakob Koschel <jakobkoschel@gmail.com>
Cc: Cai Xinchen <caixinchen1@huawei.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Logan Gunthorpe <logang@deltatee.com>
Link: https://lore.kernel.org/r/2023040250-pushover-platter-509c@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 6 insertions, 8 deletions

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index b11a9162e73a..57feb0cae896 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -663,8 +663,7 @@ static void ses_match_to_enclosure(struct enclosure_device *edev,
 	}
 }
 
-static int ses_intf_add(struct device *cdev,
-			struct class_interface *intf)
+static int ses_intf_add(struct device *cdev)
 {
 	struct scsi_device *sdev = to_scsi_device(cdev->parent);
 	struct scsi_device *tmp_sdev;
@@ -869,8 +868,7 @@ static void ses_intf_remove_enclosure(struct scsi_device *sdev)
 	enclosure_unregister(edev);
 }
 
-static void ses_intf_remove(struct device *cdev,
-			    struct class_interface *intf)
+static void ses_intf_remove(struct device *cdev)
 {
 	struct scsi_device *sdev = to_scsi_device(cdev->parent);
 
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4997f880d4a4..037f8c98a6d3 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -96,8 +96,8 @@ static int scatter_elem_sz_prev = SG_SCATTER_SZ;
 
 #define SG_SECTOR_SZ 512
 
-static int sg_add_device(struct device *, struct class_interface *);
-static void sg_remove_device(struct device *, struct class_interface *);
+static int sg_add_device(struct device *);
+static void sg_remove_device(struct device *);
 
 static DEFINE_IDR(sg_index_idr);
 static DEFINE_RWLOCK(sg_index_lock);	/* Also used to lock
@@ -1488,7 +1488,7 @@ out_unlock:
 }
 
 static int
-sg_add_device(struct device *cl_dev, struct class_interface *cl_intf)
+sg_add_device(struct device *cl_dev)
 {
 	struct scsi_device *scsidp = to_scsi_device(cl_dev->parent);
 	Sg_device *sdp = NULL;
@@ -1578,7 +1578,7 @@ sg_device_destroy(struct kref *kref)
 }
 
 static void
-sg_remove_device(struct device *cl_dev, struct class_interface *cl_intf)
+sg_remove_device(struct device *cl_dev)
 {
 	struct scsi_device *scsidp = to_scsi_device(cl_dev->parent);
 	Sg_device *sdp = dev_get_drvdata(cl_dev);