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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /tools/firewire/list.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/firewire/list.h')
-rw-r--r-- | tools/firewire/list.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tools/firewire/list.h b/tools/firewire/list.h new file mode 100644 index 000000000..6278d08e9 --- /dev/null +++ b/tools/firewire/list.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +struct list { + struct list *next, *prev; +}; + +static inline void +list_init(struct list *list) +{ + list->next = list; + list->prev = list; +} + +static inline int +list_empty(struct list *list) +{ + return list->next == list; +} + +static inline void +list_insert(struct list *link, struct list *new_link) +{ + new_link->prev = link->prev; + new_link->next = link; + new_link->prev->next = new_link; + new_link->next->prev = new_link; +} + +static inline void +list_append(struct list *list, struct list *new_link) +{ + list_insert((struct list *)list, new_link); +} + +static inline void +list_prepend(struct list *list, struct list *new_link) +{ + list_insert(list->next, new_link); +} + +static inline void +list_remove(struct list *link) +{ + link->prev->next = link->next; + link->next->prev = link->prev; +} + +#define list_entry(link, type, member) \ + ((type *)((char *)(link)-(unsigned long)(&((type *)0)->member))) + +#define list_head(list, type, member) \ + list_entry((list)->next, type, member) + +#define list_tail(list, type, member) \ + list_entry((list)->prev, type, member) + +#define list_next(elm, member) \ + list_entry((elm)->member.next, typeof(*elm), member) + +#define list_for_each_entry(pos, list, member) \ + for (pos = list_head(list, typeof(*pos), member); \ + &pos->member != (list); \ + pos = list_next(pos, member)) + |