Re: [PATCH] drm/nouveau: Remove the unused header file nvif/list.h

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On 09 2月 22 14:53:19, Cai Huoqing wrote:
> The nouveau driver depends on include/linux/list.h instead of
> nvif/list.h, so remove the obstacle-nvif/list.h.
> 
> Signed-off-by: Cai Huoqing <cai.huoqing@xxxxxxxxx>
> ---
Ping :)
>  drivers/gpu/drm/nouveau/include/nvif/list.h | 353 --------------------
>  1 file changed, 353 deletions(-)
>  delete mode 100644 drivers/gpu/drm/nouveau/include/nvif/list.h
> 
> diff --git a/drivers/gpu/drm/nouveau/include/nvif/list.h b/drivers/gpu/drm/nouveau/include/nvif/list.h
> deleted file mode 100644
> index 8af5d144ecb0..000000000000
> --- a/drivers/gpu/drm/nouveau/include/nvif/list.h
> +++ /dev/null
> @@ -1,353 +0,0 @@
> -/*
> - * Copyright © 2010 Intel Corporation
> - * Copyright © 2010 Francisco Jerez <currojerez@xxxxxxxxxx>
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice (including the next
> - * paragraph) shall be included in all copies or substantial portions of the
> - * Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
> - * IN THE SOFTWARE.
> - *
> - */
> -
> -/* Modified by Ben Skeggs <bskeggs@xxxxxxxxxx> to match kernel list APIs */
> -
> -#ifndef _XORG_LIST_H_
> -#define _XORG_LIST_H_
> -
> -/**
> - * @file Classic doubly-link circular list implementation.
> - * For real usage examples of the linked list, see the file test/list.c
> - *
> - * Example:
> - * We need to keep a list of struct foo in the parent struct bar, i.e. what
> - * we want is something like this.
> - *
> - *     struct bar {
> - *          ...
> - *          struct foo *list_of_foos; -----> struct foo {}, struct foo {}, struct foo{}
> - *          ...
> - *     }
> - *
> - * We need one list head in bar and a list element in all list_of_foos (both are of
> - * data type 'struct list_head').
> - *
> - *     struct bar {
> - *          ...
> - *          struct list_head list_of_foos;
> - *          ...
> - *     }
> - *
> - *     struct foo {
> - *          ...
> - *          struct list_head entry;
> - *          ...
> - *     }
> - *
> - * Now we initialize the list head:
> - *
> - *     struct bar bar;
> - *     ...
> - *     INIT_LIST_HEAD(&bar.list_of_foos);
> - *
> - * Then we create the first element and add it to this list:
> - *
> - *     struct foo *foo = malloc(...);
> - *     ....
> - *     list_add(&foo->entry, &bar.list_of_foos);
> - *
> - * Repeat the above for each element you want to add to the list. Deleting
> - * works with the element itself.
> - *      list_del(&foo->entry);
> - *      free(foo);
> - *
> - * Note: calling list_del(&bar.list_of_foos) will set bar.list_of_foos to an empty
> - * list again.
> - *
> - * Looping through the list requires a 'struct foo' as iterator and the
> - * name of the field the subnodes use.
> - *
> - * struct foo *iterator;
> - * list_for_each_entry(iterator, &bar.list_of_foos, entry) {
> - *      if (iterator->something == ...)
> - *             ...
> - * }
> - *
> - * Note: You must not call list_del() on the iterator if you continue the
> - * loop. You need to run the safe for-each loop instead:
> - *
> - * struct foo *iterator, *next;
> - * list_for_each_entry_safe(iterator, next, &bar.list_of_foos, entry) {
> - *      if (...)
> - *              list_del(&iterator->entry);
> - * }
> - *
> - */
> -
> -/**
> - * The linkage struct for list nodes. This struct must be part of your
> - * to-be-linked struct. struct list_head is required for both the head of the
> - * list and for each list node.
> - *
> - * Position and name of the struct list_head field is irrelevant.
> - * There are no requirements that elements of a list are of the same type.
> - * There are no requirements for a list head, any struct list_head can be a list
> - * head.
> - */
> -struct list_head {
> -    struct list_head *next, *prev;
> -};
> -
> -/**
> - * Initialize the list as an empty list.
> - *
> - * Example:
> - * INIT_LIST_HEAD(&bar->list_of_foos);
> - *
> - * @param The list to initialized.
> - */
> -#define LIST_HEAD_INIT(name) { &(name), &(name) }
> -
> -#define LIST_HEAD(name) \
> -	struct list_head name = LIST_HEAD_INIT(name)
> -
> -static inline void
> -INIT_LIST_HEAD(struct list_head *list)
> -{
> -    list->next = list->prev = list;
> -}
> -
> -static inline void
> -__list_add(struct list_head *entry,
> -                struct list_head *prev, struct list_head *next)
> -{
> -    next->prev = entry;
> -    entry->next = next;
> -    entry->prev = prev;
> -    prev->next = entry;
> -}
> -
> -/**
> - * Insert a new element after the given list head. The new element does not
> - * need to be initialised as empty list.
> - * The list changes from:
> - *      head → some element → ...
> - * to
> - *      head → new element → older element → ...
> - *
> - * Example:
> - * struct foo *newfoo = malloc(...);
> - * list_add(&newfoo->entry, &bar->list_of_foos);
> - *
> - * @param entry The new element to prepend to the list.
> - * @param head The existing list.
> - */
> -static inline void
> -list_add(struct list_head *entry, struct list_head *head)
> -{
> -    __list_add(entry, head, head->next);
> -}
> -
> -/**
> - * Append a new element to the end of the list given with this list head.
> - *
> - * The list changes from:
> - *      head → some element → ... → lastelement
> - * to
> - *      head → some element → ... → lastelement → new element
> - *
> - * Example:
> - * struct foo *newfoo = malloc(...);
> - * list_add_tail(&newfoo->entry, &bar->list_of_foos);
> - *
> - * @param entry The new element to prepend to the list.
> - * @param head The existing list.
> - */
> -static inline void
> -list_add_tail(struct list_head *entry, struct list_head *head)
> -{
> -    __list_add(entry, head->prev, head);
> -}
> -
> -static inline void
> -__list_del(struct list_head *prev, struct list_head *next)
> -{
> -    next->prev = prev;
> -    prev->next = next;
> -}
> -
> -/**
> - * Remove the element from the list it is in. Using this function will reset
> - * the pointers to/from this element so it is removed from the list. It does
> - * NOT free the element itself or manipulate it otherwise.
> - *
> - * Using list_del on a pure list head (like in the example at the top of
> - * this file) will NOT remove the first element from
> - * the list but rather reset the list as empty list.
> - *
> - * Example:
> - * list_del(&foo->entry);
> - *
> - * @param entry The element to remove.
> - */
> -static inline void
> -list_del(struct list_head *entry)
> -{
> -    __list_del(entry->prev, entry->next);
> -}
> -
> -static inline void
> -list_del_init(struct list_head *entry)
> -{
> -    __list_del(entry->prev, entry->next);
> -    INIT_LIST_HEAD(entry);
> -}
> -
> -static inline void list_move_tail(struct list_head *list,
> -				  struct list_head *head)
> -{
> -	__list_del(list->prev, list->next);
> -	list_add_tail(list, head);
> -}
> -
> -/**
> - * Check if the list is empty.
> - *
> - * Example:
> - * list_empty(&bar->list_of_foos);
> - *
> - * @return True if the list contains one or more elements or False otherwise.
> - */
> -static inline bool
> -list_empty(struct list_head *head)
> -{
> -    return head->next == head;
> -}
> -
> -/**
> - * Returns a pointer to the container of this list element.
> - *
> - * Example:
> - * struct foo* f;
> - * f = container_of(&foo->entry, struct foo, entry);
> - * assert(f == foo);
> - *
> - * @param ptr Pointer to the struct list_head.
> - * @param type Data type of the list element.
> - * @param member Member name of the struct list_head field in the list element.
> - * @return A pointer to the data struct containing the list head.
> - */
> -#ifndef container_of
> -#define container_of(ptr, type, member) \
> -    (type *)((char *)(ptr) - (char *) &((type *)0)->member)
> -#endif
> -
> -/**
> - * Alias of container_of
> - */
> -#define list_entry(ptr, type, member) \
> -    container_of(ptr, type, member)
> -
> -/**
> - * Retrieve the first list entry for the given list pointer.
> - *
> - * Example:
> - * struct foo *first;
> - * first = list_first_entry(&bar->list_of_foos, struct foo, list_of_foos);
> - *
> - * @param ptr The list head
> - * @param type Data type of the list element to retrieve
> - * @param member Member name of the struct list_head field in the list element.
> - * @return A pointer to the first list element.
> - */
> -#define list_first_entry(ptr, type, member) \
> -    list_entry((ptr)->next, type, member)
> -
> -/**
> - * Retrieve the last list entry for the given listpointer.
> - *
> - * Example:
> - * struct foo *first;
> - * first = list_last_entry(&bar->list_of_foos, struct foo, list_of_foos);
> - *
> - * @param ptr The list head
> - * @param type Data type of the list element to retrieve
> - * @param member Member name of the struct list_head field in the list element.
> - * @return A pointer to the last list element.
> - */
> -#define list_last_entry(ptr, type, member) \
> -    list_entry((ptr)->prev, type, member)
> -
> -#define __container_of(ptr, sample, member)				\
> -    (void *)container_of((ptr), typeof(*(sample)), member)
> -
> -/**
> - * Loop through the list given by head and set pos to struct in the list.
> - *
> - * Example:
> - * struct foo *iterator;
> - * list_for_each_entry(iterator, &bar->list_of_foos, entry) {
> - *      [modify iterator]
> - * }
> - *
> - * This macro is not safe for node deletion. Use list_for_each_entry_safe
> - * instead.
> - *
> - * @param pos Iterator variable of the type of the list elements.
> - * @param head List head
> - * @param member Member name of the struct list_head in the list elements.
> - *
> - */
> -#define list_for_each_entry(pos, head, member)				\
> -    for (pos = __container_of((head)->next, pos, member);		\
> -	 &pos->member != (head);					\
> -	 pos = __container_of(pos->member.next, pos, member))
> -
> -/**
> - * Loop through the list, keeping a backup pointer to the element. This
> - * macro allows for the deletion of a list element while looping through the
> - * list.
> - *
> - * See list_for_each_entry for more details.
> - */
> -#define list_for_each_entry_safe(pos, tmp, head, member)		\
> -    for (pos = __container_of((head)->next, pos, member),		\
> -	 tmp = __container_of(pos->member.next, pos, member);		\
> -	 &pos->member != (head);					\
> -	 pos = tmp, tmp = __container_of(pos->member.next, tmp, member))
> -
> -
> -#define list_for_each_entry_reverse(pos, head, member)			\
> -	for (pos = __container_of((head)->prev, pos, member);		\
> -	     &pos->member != (head);					\
> -	     pos = __container_of(pos->member.prev, pos, member))
> -
> -#define list_for_each_entry_continue(pos, head, member)			\
> -	for (pos = __container_of(pos->member.next, pos, member);	\
> -	     &pos->member != (head);					\
> -	     pos = __container_of(pos->member.next, pos, member))
> -
> -#define list_for_each_entry_continue_reverse(pos, head, member)		\
> -	for (pos = __container_of(pos->member.prev, pos, member);	\
> -	     &pos->member != (head);					\
> -	     pos = __container_of(pos->member.prev, pos, member))
> -
> -#define list_for_each_entry_from(pos, head, member)			\
> -	for (;								\
> -	     &pos->member != (head);					\
> -	     pos = __container_of(pos->member.next, pos, member))
> -
> -#endif
> -- 
> 2.25.1
> 



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