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kernel/linux-rt-4.4.41/scripts/coccinelle/iterators/device_node_continue.cocci 1.98 KB
5113f6f70   김현기   kernel add
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  /// Device node iterators put the previous value of the index variable, so an
  /// explicit put causes a double put.
  ///
  // Confidence: High
  // Copyright: (C) 2015 Julia Lawall, Inria. GPLv2.
  // URL: http://coccinelle.lip6.fr/
  // Options: --no-includes --include-headers
  // Keywords: for_each_child_of_node, etc.
  
  virtual patch
  virtual context
  virtual org
  virtual report
  
  @r exists@
  expression e1,e2;
  local idexpression n;
  iterator name for_each_node_by_name, for_each_node_by_type,
  for_each_compatible_node, for_each_matching_node,
  for_each_matching_node_and_match, for_each_child_of_node,
  for_each_available_child_of_node, for_each_node_with_property;
  iterator i;
  position p1,p2;
  statement S;
  @@
  
  (
  (
  for_each_node_by_name(n,e1) S
  |
  for_each_node_by_type(n,e1) S
  |
  for_each_compatible_node(n,e1,e2) S
  |
  for_each_matching_node(n,e1) S
  |
  for_each_matching_node_and_match(n,e1,e2) S
  |
  for_each_child_of_node(e1,n) S
  |
  for_each_available_child_of_node(e1,n) S
  |
  for_each_node_with_property(n,e1) S
  )
  &
  i@p1(...) {
     ... when != of_node_get(n)
         when any
     of_node_put@p2(n);
     ... when any
  }
  )
  
  @s exists@
  local idexpression r.n;
  statement S;
  position r.p1,r.p2;
  iterator i;
  @@
  
   of_node_put@p2(n);
   ... when any
   i@p1(..., n, ...)
   S
  
  @t depends on s && patch && !context && !org && !report@
  local idexpression n;
  position r.p2;
  @@
  
  - of_node_put@p2(n);
  
  // ----------------------------------------------------------------------------
  
  @t_context depends on s && !patch && (context || org || report)@
  local idexpression n;
  position r.p2;
  position j0;
  @@
  
  *  of_node_put@j0@p2(n);
  
  // ----------------------------------------------------------------------------
  
  @script:python t_org depends on org@
  j0 << t_context.j0;
  @@
  
  msg = "ERROR: probable double put."
  coccilib.org.print_todo(j0[0], msg)
  
  // ----------------------------------------------------------------------------
  
  @script:python t_report depends on report@
  j0 << t_context.j0;
  @@
  
  msg = "ERROR: probable double put."
  coccilib.report.print_report(j0[0], msg)