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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/s390/include/asm/ccwgroup.h
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@@ -36,11 +36,6 @@
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  * @set_online: function called when device is set online
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  * @set_offline: function called when device is set offline
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  * @shutdown: function called when device is shut down
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- * @prepare: prepare for pm state transition
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- * @complete: undo work done in @prepare
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- * @freeze: callback for freezing during hibernation snapshotting
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- * @thaw: undo work done in @freeze
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- * @restore: callback for restoring after hibernation
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  * @driver: embedded driver structure
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  * @ccw_driver: supported ccw_driver (optional)
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  */
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@@ -50,11 +45,6 @@
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 	int (*set_online) (struct ccwgroup_device *);
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 	int (*set_offline) (struct ccwgroup_device *);
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 	void (*shutdown)(struct ccwgroup_device *);
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-	int (*prepare) (struct ccwgroup_device *);
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-	void (*complete) (struct ccwgroup_device *);
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-	int (*freeze)(struct ccwgroup_device *);
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-	int (*thaw) (struct ccwgroup_device *);
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-	int (*restore)(struct ccwgroup_device *);
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 	struct device_driver driver;
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 	struct ccw_driver *ccw_driver;
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@@ -64,6 +54,8 @@
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 extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
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 int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv,
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 			int num_devices, const char *buf);
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+struct ccwgroup_device *get_ccwgroupdev_by_busid(struct ccwgroup_driver *gdrv,
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+						 char *bus_id);
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 extern int ccwgroup_set_online(struct ccwgroup_device *gdev);
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 extern int ccwgroup_set_offline(struct ccwgroup_device *gdev);