Hi, When I read the code of list_del(), I find LIST_POISON1 and LIST_POISON2:
static inline void list_del(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
entry->next = LIST_POISON1;
entry->prev = LIST_POISON2;
}
Why not set entry->next and entry->prev to NULL ?
Thank you!
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