diff options
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index ea628ebfa20e..6c11cb61e9f4 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3227,6 +3227,19 @@ sub process { $herecurr); } +# check for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo) + if ($line =~ m@\bsizeof\s*\(\s*($Lval)\s*\)@) { + my $array = $1; + if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) { + my $array_div = $1; + if (WARN("ARRAY_SIZE", + "Prefer ARRAY_SIZE($array)\n" . $herecurr) && + $fix) { + $fixed[$fixlinenr] =~ s/\Q$array_div\E/ARRAY_SIZE($array)/; + } + } + } + # check for function declarations without arguments like "int foo()" if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) { if (ERROR("FUNCTION_WITHOUT_ARGS", |