44 u32 c4iw_id_alloc(struct c4iw_id_table *alloc)  in c4iw_id_alloc()  argument
49 	spin_lock_irqsave(&alloc->lock, flags);  in c4iw_id_alloc()
51 	obj = find_next_zero_bit(alloc->table, alloc->max, alloc->last);  in c4iw_id_alloc()
52 	if (obj >= alloc->max)  in c4iw_id_alloc()
53 		obj = find_first_zero_bit(alloc->table, alloc->max);  in c4iw_id_alloc()
55 	if (obj < alloc->max) {  in c4iw_id_alloc()
56 		if (alloc->flags & C4IW_ID_TABLE_F_RANDOM)  in c4iw_id_alloc()
57 			alloc->last += get_random_u32_below(RANDOM_SKIP);  in c4iw_id_alloc()
59 			alloc->last = obj + 1;  in c4iw_id_alloc()
60 		if (alloc->last >= alloc->max)  in c4iw_id_alloc()
61 			alloc->last = 0;  in c4iw_id_alloc()
62 		__set_bit(obj, alloc->table);  in c4iw_id_alloc()
63 		obj += alloc->start;  in c4iw_id_alloc()
67 	spin_unlock_irqrestore(&alloc->lock, flags);  in c4iw_id_alloc()
71 void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj)  in c4iw_id_free()  argument
75 	obj -= alloc->start;  in c4iw_id_free()
77 	spin_lock_irqsave(&alloc->lock, flags);  in c4iw_id_free()
78 	__clear_bit(obj, alloc->table);  in c4iw_id_free()
79 	spin_unlock_irqrestore(&alloc->lock, flags);  in c4iw_id_free()
82 int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,  in c4iw_id_table_alloc()  argument
85 	alloc->start = start;  in c4iw_id_table_alloc()
86 	alloc->flags = flags;  in c4iw_id_table_alloc()
88 		alloc->last = get_random_u32_below(RANDOM_SKIP);  in c4iw_id_table_alloc()
90 		alloc->last = 0;  in c4iw_id_table_alloc()
91 	alloc->max = num;  in c4iw_id_table_alloc()
92 	spin_lock_init(&alloc->lock);  in c4iw_id_table_alloc()
93 	alloc->table = bitmap_zalloc(num, GFP_KERNEL);  in c4iw_id_table_alloc()
94 	if (!alloc->table)  in c4iw_id_table_alloc()
97 	if (!(alloc->flags & C4IW_ID_TABLE_F_EMPTY))  in c4iw_id_table_alloc()
98 		bitmap_set(alloc->table, 0, reserved);  in c4iw_id_table_alloc()
103 void c4iw_id_table_free(struct c4iw_id_table *alloc)  in c4iw_id_table_free()  argument
105 	bitmap_free(alloc->table);  in c4iw_id_table_free()