>>>>> +# nested likely/unlikely calls
>>>>> + if ($line =~ /\b(?:(?:un)?likely)\s*\(\s*!?\s*(IS_ERR(?:_OR_NULL|_VALUE)?|WARN)/) {
>>>>> + WARN("LIKELY_MISUSE",
…
>> \b(?:un)?likely\s*
>
> This pair of brackets is required to match "unlikely"
> and it's optional in order to match "likely".
I agree also to this view if you refer to the shortened regular expression here.
But I got an other development opinion for an extra pair of non-capturing parentheses
at the front (from the version which you suggested).
Regards,
Markus
