demos/janitorings/list_for_each.cocci

   1 @@
   2 iterator list_for_each;
   3 statement S;
   4 expression head;
   5 struct list_head *pos;
   6 @@
   7 - for (pos = head.next; pos != &head; pos = pos->next)
   8 -  S
   9 //+ list_for_each(pos, &head)
  10
  11
  12 @@
  13 //iterator list_for_each;
  14 statement S;
  15 expression head;
  16 struct list_head *pos;
  17 @@
  18 - for (pos = head->next; pos != head; pos = pos->next)
  19 -  S
  20 //+ list_for_each(pos, head)
  21
  22
  23
  24 // list_add, list_del
  25 // list_move
  26 // list_del_init
  27 // list_add_tail
  28
  29 // { ... when !=
  30 //    list_del() \| xxx->next = E \| list_add() \| f(...,xxx,...)
  31 // }
  32
  33
  34 // le cas single statement
  35
  36
  37
  38 // in  0c5719c43d34073f6b4b0a2dd99f5317a5f63abd
  39 //
  40 //-    struct list_head *walk = &pdev->bus_list;
  41 //+    struct list_head *walk;
  42 //
  43 //-    for (walk = walk->next; walk != &pdev->bus_list; walk = walk->next) {