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lib/modules/5.15.0-1026-aws/build/scripts/coccinelle/api/_[ Not.Writable ]

File://lib/modules/5.15.0-1026-aws/build/scripts/coccinelle/api/check_bq27xxx_data.cocci

// SPDX-License-Identifier: GPL-2.0-only
/// Detect BQ27XXX_DATA structures with identical registers, dm registers or
/// properties.
//# Doesn't unfold macros used in register or property fields.
//# Requires OCaml scripting
///
// Confidence: High
// Copyright: (C) 2017 Julia Lawall, Inria/LIP6,
// URL: http://coccinelle.lip6.fr/
// Requires: 1.0.7
// Keywords: BQ27XXX_DATA

virtual report

@initialize:ocaml@
@@

let print_report p msg =
  let p = List.hd p in
  Printf.printf "%s:%d:%d-%d: %s" p.file p.line p.col p.col_end msg

@str depends on report@
type t;
identifier i,i1,i2;
expression e1,e2;
@@

t i[] = {
  ...,
  [e1] = BQ27XXX_DATA(i1,...),
  ...,
  [e2] = BQ27XXX_DATA(i2,...),
  ...,
};

@script:ocaml tocheck@
i1 << str.i1;
i2 << str.i2;
i1regs; i2regs;
i1dmregs; i2dmregs;
i1props; i2props;
@@

if not(i1 = i2)
then
  begin
    i1regs := make_ident (i1 ^ "_regs");
    i2regs := make_ident (i2 ^ "_regs");
    i1dmregs := make_ident (i1 ^ "_dm_regs");
    i2dmregs := make_ident (i2 ^ "_dm_regs");
    i1props := make_ident (i1 ^ "_props");
    i2props := make_ident (i2 ^ "_props")
  end

(* ---------------------------------------------------------------- *)

@getregs1@
typedef u8;
identifier tocheck.i1regs;
initializer list i1regs_vals;
position p1;
@@

u8 i1regs@p1[...] = { i1regs_vals, };

@getregs2@
identifier tocheck.i2regs;
initializer list i2regs_vals;
position p2;
@@

u8 i2regs@p2[...] = { i2regs_vals, };

@script:ocaml@
(_,i1regs_vals) << getregs1.i1regs_vals;
(_,i2regs_vals) << getregs2.i2regs_vals;
i1regs << tocheck.i1regs;
i2regs << tocheck.i2regs;
p1 << getregs1.p1;
p2 << getregs2.p2;
@@

if i1regs < i2regs &&
   List.sort compare i1regs_vals = List.sort compare i2regs_vals
then
  let msg =
    Printf.sprintf
      "WARNING %s and %s (line %d) are identical\n"
      i1regs i2regs (List.hd p2).line in
  print_report p1 msg

(* ---------------------------------------------------------------- *)

@getdmregs1@
identifier tocheck.i1dmregs;
initializer list i1dmregs_vals;
position p1;
@@

struct bq27xxx_dm_reg i1dmregs@p1[] = { i1dmregs_vals, };

@getdmregs2@
identifier tocheck.i2dmregs;
initializer list i2dmregs_vals;
position p2;
@@

struct bq27xxx_dm_reg i2dmregs@p2[] = { i2dmregs_vals, };

@script:ocaml@
(_,i1dmregs_vals) << getdmregs1.i1dmregs_vals;
(_,i2dmregs_vals) << getdmregs2.i2dmregs_vals;
i1dmregs << tocheck.i1dmregs;
i2dmregs << tocheck.i2dmregs;
p1 << getdmregs1.p1;
p2 << getdmregs2.p2;
@@

if i1dmregs < i2dmregs &&
   List.sort compare i1dmregs_vals = List.sort compare i2dmregs_vals
then
  let msg =
    Printf.sprintf
      "WARNING %s and %s (line %d) are identical\n"
      i1dmregs i2dmregs (List.hd p2).line in
  print_report p1 msg

(* ---------------------------------------------------------------- *)

@getprops1@
identifier tocheck.i1props;
initializer list[n1] i1props_vals;
position p1;
@@

enum power_supply_property i1props@p1[] = { i1props_vals, };

@getprops2@
identifier tocheck.i2props;
initializer list[n2] i2props_vals;
position p2;
@@

enum power_supply_property i2props@p2[] = { i2props_vals, };

@script:ocaml@
(_,i1props_vals) << getprops1.i1props_vals;
(_,i2props_vals) << getprops2.i2props_vals;
i1props << tocheck.i1props;
i2props << tocheck.i2props;
p1 << getprops1.p1;
p2 << getprops2.p2;
@@

if i1props < i2props &&
   List.sort compare i1props_vals = List.sort compare i2props_vals
then
  let msg =
    Printf.sprintf
      "WARNING %s and %s (line %d) are identical\n"
      i1props i2props (List.hd p2).line in
  print_report p1 msg

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