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author | Yann E. MORIN <yann.morin.1998@free.fr> | 2013-11-14 00:53:35 +0100 |
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committer | Peter Korsgaard <peter@korsgaard.com> | 2013-11-14 12:34:49 +0100 |
commit | b48e35a28a6391ec16f09df66ad5b1065330f265 (patch) | |
tree | 83e955dab61ba5cca95707c2b7920e74ec99e2d0 /support/kconfig/list.h | |
parent | 147be50283c49ed15a6b56aaa5d455eec92c9615 (diff) | |
download | buildroot-b48e35a28a6391ec16f09df66ad5b1065330f265.tar.gz buildroot-b48e35a28a6391ec16f09df66ad5b1065330f265.zip |
support/kconfig: bump to kconfig from linux-3.12
With this, we can trash our probability patch, it's now upstream.
Refresh a few other patches.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'support/kconfig/list.h')
-rw-r--r-- | support/kconfig/list.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/support/kconfig/list.h b/support/kconfig/list.h index 0ae730be5f..685d80e1bb 100644 --- a/support/kconfig/list.h +++ b/support/kconfig/list.h @@ -51,6 +51,19 @@ struct list_head { pos = list_entry(pos->member.next, typeof(*pos), member)) /** + * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry + * @pos: the type * to use as a loop cursor. + * @n: another type * to use as temporary storage + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + */ +#define list_for_each_entry_safe(pos, n, head, member) \ + for (pos = list_entry((head)->next, typeof(*pos), member), \ + n = list_entry(pos->member.next, typeof(*pos), member); \ + &pos->member != (head); \ + pos = n, n = list_entry(n->member.next, typeof(*n), member)) + +/** * list_empty - tests whether a list is empty * @head: the list to test. */ @@ -88,4 +101,31 @@ static inline void list_add_tail(struct list_head *_new, struct list_head *head) __list_add(_new, head->prev, head); } +/* + * Delete a list entry by making the prev/next entries + * point to each other. + * + * This is only for internal list manipulation where we know + * the prev/next entries already! + */ +static inline void __list_del(struct list_head *prev, struct list_head *next) +{ + next->prev = prev; + prev->next = next; +} + +#define LIST_POISON1 ((void *) 0x00100100) +#define LIST_POISON2 ((void *) 0x00200200) +/** + * list_del - deletes entry from list. + * @entry: the element to delete from the list. + * Note: list_empty() on entry does not return true after this, the entry is + * in an undefined state. + */ +static inline void list_del(struct list_head *entry) +{ + __list_del(entry->prev, entry->next); + entry->next = (struct list_head*)LIST_POISON1; + entry->prev = (struct list_head*)LIST_POISON2; +} #endif |