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9#include <linux/module.h>
10#include <linux/list.h>
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18
19void __list_add(struct list_head *new,
20 struct list_head *prev,
21 struct list_head *next)
22{
23 WARN(next->prev != prev,
24 "list_add corruption. next->prev should be "
25 "prev (%p), but was %p. (next=%p).\n",
26 prev, next->prev, next);
27 WARN(prev->next != next,
28 "list_add corruption. prev->next should be "
29 "next (%p), but was %p. (prev=%p).\n",
30 next, prev->next, prev);
31 next->prev = new;
32 new->next = next;
33 new->prev = prev;
34 prev->next = new;
35}
36EXPORT_SYMBOL(__list_add);
37
38void __list_del_entry(struct list_head *entry)
39{
40 struct list_head *prev, *next;
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42 prev = entry->prev;
43 next = entry->next;
44
45 if (WARN(next == LIST_POISON1,
46 "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
47 entry, LIST_POISON1) ||
48 WARN(prev == LIST_POISON2,
49 "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
50 entry, LIST_POISON2) ||
51 WARN(prev->next != entry,
52 "list_del corruption. prev->next should be %p, "
53 "but was %p\n", entry, prev->next) ||
54 WARN(next->prev != entry,
55 "list_del corruption. next->prev should be %p, "
56 "but was %p\n", entry, next->prev))
57 return;
58
59 __list_del(prev, next);
60}
61EXPORT_SYMBOL(__list_del_entry);
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69void list_del(struct list_head *entry)
70{
71 __list_del_entry(entry);
72 entry->next = LIST_POISON1;
73 entry->prev = LIST_POISON2;
74}
75EXPORT_SYMBOL(list_del);
76