2007-11-23 17:22:54 +00:00
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/**************************************************************************
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2015-04-28 01:41:27 +01:00
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*
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s/Tungsten Graphics/VMware/
Tungsten Graphics Inc. was acquired by VMware Inc. in 2008. Leaving the
old copyright name is creating unnecessary confusion, hence this change.
This was the sed script I used:
$ cat tg2vmw.sed
# Run as:
#
# git reset --hard HEAD && find include scons src -type f -not -name 'sed*' -print0 | xargs -0 sed -i -f tg2vmw.sed
#
# Rename copyrights
s/Tungsten Gra\(ph\|hp\)ics,\? [iI]nc\.\?\(, Cedar Park\)\?\(, Austin\)\?\(, \(Texas\|TX\)\)\?\.\?/VMware, Inc./g
/Copyright/s/Tungsten Graphics\(,\? [iI]nc\.\)\?\(, Cedar Park\)\?\(, Austin\)\?\(, \(Texas\|TX\)\)\?\.\?/VMware, Inc./
s/TUNGSTEN GRAPHICS/VMWARE/g
# Rename emails
s/alanh@tungstengraphics.com/alanh@vmware.com/
s/jens@tungstengraphics.com/jowen@vmware.com/g
s/jrfonseca-at-tungstengraphics-dot-com/jfonseca-at-vmware-dot-com/
s/jrfonseca\?@tungstengraphics.com/jfonseca@vmware.com/g
s/keithw\?@tungstengraphics.com/keithw@vmware.com/g
s/michel@tungstengraphics.com/daenzer@vmware.com/g
s/thomas-at-tungstengraphics-dot-com/thellstom-at-vmware-dot-com/
s/zack@tungstengraphics.com/zackr@vmware.com/
# Remove dead links
s@Tungsten Graphics (http://www.tungstengraphics.com)@Tungsten Graphics@g
# C string src/gallium/state_trackers/vega/api_misc.c
s/"Tungsten Graphics, Inc"/"VMware, Inc"/
Reviewed-by: Brian Paul <brianp@vmware.com>
2014-01-17 16:27:50 +00:00
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* Copyright 2006 VMware, Inc., Bismarck, ND. USA.
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2007-11-23 17:22:54 +00:00
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* All Rights Reserved.
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2015-04-28 01:41:27 +01:00
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*
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2007-11-23 17:22:54 +00:00
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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2015-04-28 01:41:27 +01:00
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*
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2007-11-23 17:22:54 +00:00
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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2015-04-28 01:41:27 +01:00
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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2007-11-23 17:22:54 +00:00
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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2015-04-28 01:41:27 +01:00
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*
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2007-11-23 17:22:54 +00:00
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**************************************************************************/
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/**
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* \file
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* List macros heavily inspired by the Linux kernel
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* list handling. No list looping yet.
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2015-04-28 01:41:27 +01:00
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*
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2007-11-23 17:22:54 +00:00
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* Is not threadsafe, so common operations need to
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* be protected using an external mutex.
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*/
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2015-04-28 01:41:27 +01:00
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#ifndef _UTIL_LIST_H_
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#define _UTIL_LIST_H_
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2007-11-23 17:22:54 +00:00
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2015-04-28 04:39:37 +01:00
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#include <stdbool.h>
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2007-11-23 17:22:54 +00:00
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#include <stddef.h>
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2015-04-28 04:40:11 +01:00
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#include <assert.h>
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2007-11-23 17:22:54 +00:00
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2022-07-07 22:59:48 +01:00
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#define list_assert(cond, msg) assert(cond && msg)
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2007-11-23 17:22:54 +00:00
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struct list_head
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{
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struct list_head *prev;
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struct list_head *next;
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};
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2015-04-28 00:58:29 +01:00
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static inline void list_inithead(struct list_head *item)
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2011-03-28 22:45:31 +01:00
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{
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item->prev = item;
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item->next = item;
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}
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2022-03-16 17:41:29 +00:00
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/**
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* Prepend an item to a list
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*
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* @param item The element to add to the list
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* @param list The list to prepend to
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*/
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2015-04-28 00:58:29 +01:00
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static inline void list_add(struct list_head *item, struct list_head *list)
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2011-03-28 22:45:31 +01:00
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{
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item->prev = list;
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item->next = list->next;
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list->next->prev = item;
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list->next = item;
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}
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2022-03-16 17:41:29 +00:00
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/**
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* Append an item to a list
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*
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* @param item The element to add to the list
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* @param list The list to append to
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*/
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2015-04-28 00:58:29 +01:00
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static inline void list_addtail(struct list_head *item, struct list_head *list)
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2011-03-28 22:45:31 +01:00
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{
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item->next = list;
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item->prev = list->prev;
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list->prev->next = item;
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list->prev = item;
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}
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2019-10-28 10:27:52 +00:00
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static inline bool list_is_empty(const struct list_head *list);
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2016-07-02 13:02:51 +01:00
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2015-04-28 00:58:29 +01:00
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static inline void list_replace(struct list_head *from, struct list_head *to)
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2011-03-28 22:45:31 +01:00
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{
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2019-10-28 10:27:52 +00:00
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if (list_is_empty(from)) {
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2016-07-02 13:02:51 +01:00
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list_inithead(to);
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} else {
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to->prev = from->prev;
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to->next = from->next;
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from->next->prev = to;
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from->prev->next = to;
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}
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2011-03-28 22:45:31 +01:00
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}
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2015-04-28 00:58:29 +01:00
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static inline void list_del(struct list_head *item)
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2011-03-28 22:45:31 +01:00
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{
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item->prev->next = item->next;
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item->next->prev = item->prev;
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2012-10-11 23:01:23 +01:00
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item->prev = item->next = NULL;
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2011-03-28 22:45:31 +01:00
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}
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2007-11-23 17:22:54 +00:00
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2015-04-28 00:58:29 +01:00
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static inline void list_delinit(struct list_head *item)
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2011-03-28 22:45:31 +01:00
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{
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item->prev->next = item->next;
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item->next->prev = item->prev;
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item->next = item;
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item->prev = item;
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}
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2019-10-28 10:27:52 +00:00
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static inline bool list_is_empty(const struct list_head *list)
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2015-04-28 04:39:37 +01:00
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{
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return list->next == list;
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}
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2020-12-15 14:56:02 +00:00
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static inline bool list_is_linked(const struct list_head *list)
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{
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/* both must be NULL or both must be not NULL */
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assert((list->prev != NULL) == (list->next != NULL));
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return list->next != NULL;
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}
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2015-10-23 15:31:41 +01:00
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/**
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* Returns whether the list has exactly one element.
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*/
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static inline bool list_is_singular(const struct list_head *list)
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{
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2020-12-15 15:06:57 +00:00
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return list_is_linked(list) && !list_is_empty(list) && list->next->next == list;
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2015-10-23 15:31:41 +01:00
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}
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2018-07-25 18:37:53 +01:00
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static inline unsigned list_length(const struct list_head *list)
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2015-04-28 04:39:37 +01:00
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{
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struct list_head *node;
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unsigned length = 0;
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for (node = list->next; node != list; node = node->next)
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length++;
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return length;
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}
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2015-07-30 19:28:22 +01:00
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static inline void list_splice(struct list_head *src, struct list_head *dst)
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{
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2019-10-28 10:27:52 +00:00
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if (list_is_empty(src))
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2015-07-30 19:28:22 +01:00
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return;
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src->next->prev = dst;
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src->prev->next = dst->next;
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dst->next->prev = src->prev;
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dst->next = src->next;
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}
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static inline void list_splicetail(struct list_head *src, struct list_head *dst)
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{
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2019-10-28 10:27:52 +00:00
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if (list_is_empty(src))
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2015-07-30 19:28:22 +01:00
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return;
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src->prev->next = dst;
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src->next->prev = dst->prev;
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dst->prev->next = src->next;
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dst->prev = src->prev;
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}
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2018-07-25 18:37:53 +01:00
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static inline void list_validate(const struct list_head *list)
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2015-04-28 04:40:11 +01:00
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{
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struct list_head *node;
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2020-12-15 14:56:02 +00:00
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assert(list_is_linked(list));
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2015-04-28 04:40:11 +01:00
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assert(list->next->prev == list && list->prev->next == list);
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for (node = list->next; node != list; node = node->next)
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assert(node->next->prev == node && node->prev->next == node);
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}
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2022-03-16 18:19:49 +00:00
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/**
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* Move an item from one place in a list to another
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*
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* The item can be in this list, or in another.
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*
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* @param item The item to move
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* @param loc The element to put the item in front of
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*/
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static inline void list_move_to(struct list_head *item, struct list_head *loc) {
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list_del(item);
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list_add(item, loc);
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}
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2022-07-27 16:48:11 +01:00
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#define list_entry(__item, __type, __field) \
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2007-11-23 17:22:54 +00:00
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((__type *)(((char *)(__item)) - offsetof(__type, __field)))
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2012-04-01 19:21:47 +01:00
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/**
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* Cast from a pointer to a member of a struct back to the containing struct.
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*
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* 'sample' MUST be initialized, or else the result is undefined!
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*/
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2020-12-05 19:56:45 +00:00
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#define list_container_of(ptr, sample, member) \
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2010-07-02 06:27:17 +01:00
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(void *)((char *)(ptr) \
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- ((char *)&(sample)->member - (char *)(sample)))
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2015-04-29 13:38:45 +01:00
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#define list_first_entry(ptr, type, member) \
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2022-07-27 16:48:11 +01:00
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list_entry((ptr)->next, type, member)
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2015-04-29 13:38:45 +01:00
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#define list_last_entry(ptr, type, member) \
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2022-07-27 16:48:11 +01:00
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list_entry((ptr)->prev, type, member)
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2015-04-29 13:38:45 +01:00
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2010-07-02 06:27:17 +01:00
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#define LIST_FOR_EACH_ENTRY(pos, head, member) \
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2020-12-05 19:56:45 +00:00
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for (pos = NULL, pos = list_container_of((head)->next, pos, member); \
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2010-07-02 06:27:17 +01:00
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&pos->member != (head); \
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2020-12-05 19:56:45 +00:00
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pos = list_container_of(pos->member.next, pos, member))
|
2010-07-02 06:27:17 +01:00
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#define LIST_FOR_EACH_ENTRY_SAFE(pos, storage, head, member) \
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2020-12-05 19:56:45 +00:00
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for (pos = NULL, pos = list_container_of((head)->next, pos, member), \
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storage = list_container_of(pos->member.next, pos, member); \
|
2010-07-02 06:27:17 +01:00
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&pos->member != (head); \
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2020-12-05 19:56:45 +00:00
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pos = storage, storage = list_container_of(storage->member.next, storage, member))
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2011-03-28 22:45:31 +01:00
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#define LIST_FOR_EACH_ENTRY_SAFE_REV(pos, storage, head, member) \
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2020-12-05 19:56:45 +00:00
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for (pos = NULL, pos = list_container_of((head)->prev, pos, member), \
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storage = list_container_of(pos->member.prev, pos, member); \
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2011-03-28 22:45:31 +01:00
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&pos->member != (head); \
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2020-12-05 19:56:45 +00:00
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pos = storage, storage = list_container_of(storage->member.prev, storage, member))
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2011-03-28 22:45:31 +01:00
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#define LIST_FOR_EACH_ENTRY_FROM(pos, start, head, member) \
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2020-12-05 19:56:45 +00:00
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for (pos = NULL, pos = list_container_of((start), pos, member); \
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2011-03-28 22:45:31 +01:00
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&pos->member != (head); \
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2020-12-05 19:56:45 +00:00
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pos = list_container_of(pos->member.next, pos, member))
|
2011-03-28 22:45:31 +01:00
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#define LIST_FOR_EACH_ENTRY_FROM_REV(pos, start, head, member) \
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2020-12-05 19:56:45 +00:00
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for (pos = NULL, pos = list_container_of((start), pos, member); \
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2011-03-28 22:45:31 +01:00
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&pos->member != (head); \
|
2020-12-05 19:56:45 +00:00
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pos = list_container_of(pos->member.prev, pos, member))
|
2011-03-28 22:45:31 +01:00
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2015-04-28 02:56:02 +01:00
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#define list_for_each_entry(type, pos, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((head)->next, type, member), \
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*__next = list_entry(pos->member.next, type, member); \
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2015-04-28 02:56:02 +01:00
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&pos->member != (head); \
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2022-07-27 16:48:11 +01:00
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pos = list_entry(pos->member.next, type, member), \
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2019-05-25 18:50:41 +01:00
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list_assert(pos == __next, "use _safe iterator"), \
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2022-07-27 16:48:11 +01:00
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__next = list_entry(__next->member.next, type, member))
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2015-04-28 02:56:02 +01:00
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#define list_for_each_entry_safe(type, pos, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((head)->next, type, member), \
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*__next = list_entry(pos->member.next, type, member); \
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2015-04-28 02:56:02 +01:00
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&pos->member != (head); \
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pos = __next, \
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2022-07-27 16:48:11 +01:00
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__next = list_entry(__next->member.next, type, member))
|
2015-04-28 02:56:02 +01:00
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#define list_for_each_entry_rev(type, pos, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((head)->prev, type, member), \
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*__prev = list_entry(pos->member.prev, type, member); \
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2015-04-28 02:56:02 +01:00
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&pos->member != (head); \
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2022-07-27 16:48:11 +01:00
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pos = list_entry(pos->member.prev, type, member), \
|
2019-05-25 18:50:41 +01:00
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|
|
list_assert(pos == __prev, "use _safe iterator"), \
|
2022-07-27 16:48:11 +01:00
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|
|
__prev = list_entry(__prev->member.prev, type, member))
|
2015-04-28 02:56:02 +01:00
|
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#define list_for_each_entry_safe_rev(type, pos, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((head)->prev, type, member), \
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*__prev = list_entry(pos->member.prev, type, member); \
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2015-04-28 02:56:02 +01:00
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&pos->member != (head); \
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pos = __prev, \
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2022-07-27 16:48:11 +01:00
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__prev = list_entry(__prev->member.prev, type, member))
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2015-04-28 02:56:02 +01:00
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#define list_for_each_entry_from(type, pos, start, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((start), type, member); \
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2015-04-28 02:56:02 +01:00
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&pos->member != (head); \
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2022-07-27 16:48:11 +01:00
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pos = list_entry(pos->member.next, type, member))
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2015-04-28 02:56:02 +01:00
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2019-09-17 02:21:06 +01:00
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#define list_for_each_entry_from_safe(type, pos, start, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((start), type, member), \
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*__next = list_entry(pos->member.next, type, member); \
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2019-09-17 02:21:06 +01:00
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&pos->member != (head); \
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pos = __next, \
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2022-07-27 16:48:11 +01:00
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__next = list_entry(__next->member.next, type, member))
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2019-09-17 02:21:06 +01:00
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2015-04-28 02:56:02 +01:00
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#define list_for_each_entry_from_rev(type, pos, start, head, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos = list_entry((start), type, member); \
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2015-04-28 02:56:02 +01:00
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&pos->member != (head); \
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2022-07-27 16:48:11 +01:00
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pos = list_entry(pos->member.prev, type, member))
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2015-04-28 02:56:02 +01:00
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2019-08-05 22:19:06 +01:00
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#define list_pair_for_each_entry(type, pos1, pos2, head1, head2, member) \
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2022-07-27 16:48:11 +01:00
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for (type *pos1 = list_entry((head1)->next, type, member), \
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*pos2 = list_entry((head2)->next, type, member); \
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2019-08-05 22:19:06 +01:00
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&pos1->member != (head1) && &pos2->member != (head2); \
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2022-07-27 16:48:11 +01:00
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pos1 = list_entry(pos1->member.next, type, member), \
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pos2 = list_entry(pos2->member.next, type, member))
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2019-08-05 22:19:06 +01:00
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2015-04-28 01:41:27 +01:00
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#endif /*_UTIL_LIST_H_*/
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