1// SPDX-License-Identifier: GPL-2.0-only 2/// Detect BQ27XXX_DATA structures with identical registers, dm registers or 3/// properties. 4//# Doesn't unfold macros used in register or property fields. 5//# Requires OCaml scripting 6/// 7// Confidence: High 8// Copyright: (C) 2017 Julia Lawall, Inria/LIP6, 9// URL: https://coccinelle.gitlabpages.inria.fr/website 10// Requires: 1.0.7 11// Keywords: BQ27XXX_DATA 12 13virtual report 14 15@initialize:ocaml@ 16@@ 17 18let print_report p msg = 19 let p = List.hd p in 20 Printf.printf "%s:%d:%d-%d: %s" p.file p.line p.col p.col_end msg 21 22@str depends on report@ 23type t; 24identifier i,i1,i2; 25expression e1,e2; 26@@ 27 28t i[] = { 29 ..., 30 [e1] = BQ27XXX_DATA(i1,...), 31 ..., 32 [e2] = BQ27XXX_DATA(i2,...), 33 ..., 34}; 35 36@script:ocaml tocheck@ 37i1 << str.i1; 38i2 << str.i2; 39i1regs; i2regs; 40i1dmregs; i2dmregs; 41i1props; i2props; 42@@ 43 44if not(i1 = i2) 45then 46 begin 47 i1regs := make_ident (i1 ^ "_regs"); 48 i2regs := make_ident (i2 ^ "_regs"); 49 i1dmregs := make_ident (i1 ^ "_dm_regs"); 50 i2dmregs := make_ident (i2 ^ "_dm_regs"); 51 i1props := make_ident (i1 ^ "_props"); 52 i2props := make_ident (i2 ^ "_props") 53 end 54 55(* ---------------------------------------------------------------- *) 56 57@getregs1@ 58typedef u8; 59identifier tocheck.i1regs; 60initializer list i1regs_vals; 61position p1; 62@@ 63 64u8 i1regs@p1[...] = { i1regs_vals, }; 65 66@getregs2@ 67identifier tocheck.i2regs; 68initializer list i2regs_vals; 69position p2; 70@@ 71 72u8 i2regs@p2[...] = { i2regs_vals, }; 73 74@script:ocaml@ 75(_,i1regs_vals) << getregs1.i1regs_vals; 76(_,i2regs_vals) << getregs2.i2regs_vals; 77i1regs << tocheck.i1regs; 78i2regs << tocheck.i2regs; 79p1 << getregs1.p1; 80p2 << getregs2.p2; 81@@ 82 83if i1regs < i2regs && 84 List.sort compare i1regs_vals = List.sort compare i2regs_vals 85then 86 let msg = 87 Printf.sprintf 88 "WARNING %s and %s (line %d) are identical\n" 89 i1regs i2regs (List.hd p2).line in 90 print_report p1 msg 91 92(* ---------------------------------------------------------------- *) 93 94@getdmregs1@ 95identifier tocheck.i1dmregs; 96initializer list i1dmregs_vals; 97position p1; 98@@ 99 100struct bq27xxx_dm_reg i1dmregs@p1[] = { i1dmregs_vals, }; 101 102@getdmregs2@ 103identifier tocheck.i2dmregs; 104initializer list i2dmregs_vals; 105position p2; 106@@ 107 108struct bq27xxx_dm_reg i2dmregs@p2[] = { i2dmregs_vals, }; 109 110@script:ocaml@ 111(_,i1dmregs_vals) << getdmregs1.i1dmregs_vals; 112(_,i2dmregs_vals) << getdmregs2.i2dmregs_vals; 113i1dmregs << tocheck.i1dmregs; 114i2dmregs << tocheck.i2dmregs; 115p1 << getdmregs1.p1; 116p2 << getdmregs2.p2; 117@@ 118 119if i1dmregs < i2dmregs && 120 List.sort compare i1dmregs_vals = List.sort compare i2dmregs_vals 121then 122 let msg = 123 Printf.sprintf 124 "WARNING %s and %s (line %d) are identical\n" 125 i1dmregs i2dmregs (List.hd p2).line in 126 print_report p1 msg 127 128(* ---------------------------------------------------------------- *) 129 130@getprops1@ 131identifier tocheck.i1props; 132initializer list[n1] i1props_vals; 133position p1; 134@@ 135 136enum power_supply_property i1props@p1[] = { i1props_vals, }; 137 138@getprops2@ 139identifier tocheck.i2props; 140initializer list[n2] i2props_vals; 141position p2; 142@@ 143 144enum power_supply_property i2props@p2[] = { i2props_vals, }; 145 146@script:ocaml@ 147(_,i1props_vals) << getprops1.i1props_vals; 148(_,i2props_vals) << getprops2.i2props_vals; 149i1props << tocheck.i1props; 150i2props << tocheck.i2props; 151p1 << getprops1.p1; 152p2 << getprops2.p2; 153@@ 154 155if i1props < i2props && 156 List.sort compare i1props_vals = List.sort compare i2props_vals 157then 158 let msg = 159 Printf.sprintf 160 "WARNING %s and %s (line %d) are identical\n" 161 i1props i2props (List.hd p2).line in 162 print_report p1 msg 163