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7a96ccc82c
attribute_container_register() has always returned 0 since its
introduction in commit 06ff5a987e ("Add attribute container to generic
device model") in the historical Linux tree [1]. Convert the return type
to void and update all callers.
This removes dead code where callers checked for errors that could never
occur.
Link: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git [1]
Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
Link: https://patch.msgid.link/20251220-dev-attribute-container-linux-scsi-v1-1-d58fcd03bf21@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* attribute_container.h - a generic container for all classes
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*
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* Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
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*/
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#ifndef _ATTRIBUTE_CONTAINER_H_
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#define _ATTRIBUTE_CONTAINER_H_
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#include <linux/list.h>
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#include <linux/klist.h>
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struct device;
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struct attribute_container {
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struct list_head node;
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struct klist containers;
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struct class *class;
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const struct attribute_group *grp;
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struct device_attribute **attrs;
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int (*match)(struct attribute_container *, struct device *);
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#define ATTRIBUTE_CONTAINER_NO_CLASSDEVS 0x01
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unsigned long flags;
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};
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static inline int
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attribute_container_no_classdevs(struct attribute_container *atc)
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{
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return atc->flags & ATTRIBUTE_CONTAINER_NO_CLASSDEVS;
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}
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static inline void
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attribute_container_set_no_classdevs(struct attribute_container *atc)
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{
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atc->flags |= ATTRIBUTE_CONTAINER_NO_CLASSDEVS;
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}
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void attribute_container_register(struct attribute_container *cont);
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int __must_check attribute_container_unregister(struct attribute_container *cont);
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void attribute_container_create_device(struct device *dev,
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int (*fn)(struct attribute_container *,
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struct device *,
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struct device *));
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void attribute_container_add_device(struct device *dev,
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int (*fn)(struct attribute_container *,
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struct device *,
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struct device *));
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void attribute_container_remove_device(struct device *dev,
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void (*fn)(struct attribute_container *,
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struct device *,
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struct device *));
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void attribute_container_device_trigger(struct device *dev,
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int (*fn)(struct attribute_container *,
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struct device *,
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struct device *));
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int attribute_container_device_trigger_safe(struct device *dev,
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int (*fn)(struct attribute_container *,
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struct device *,
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struct device *),
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int (*undo)(struct attribute_container *,
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struct device *,
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struct device *));
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int attribute_container_add_attrs(struct device *classdev);
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int attribute_container_add_class_device(struct device *classdev);
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void attribute_container_remove_attrs(struct device *classdev);
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void attribute_container_class_device_del(struct device *classdev);
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struct attribute_container *attribute_container_classdev_to_container(struct device *);
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struct device *attribute_container_find_class_device(struct attribute_container *, struct device *);
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struct device_attribute **attribute_container_classdev_to_attrs(const struct device *classdev);
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#endif
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