On Mon, Jan 04, 2016 at 08:07:40AM -0800, Joe Perches wrote:
> On Mon, 2016-01-04 at 13:36 +0200, Michael S. Tsirkin wrote:
> > + my $all_barriers = join('|', (@barriers, @smp_barriers));
> > +
> > + if ($line =~ /\b($all_barriers)\(/) {
>
> It would be better to use /\b$all_barriers\s*\(/
> as there's no reason for the capture and there
> could be a space between the function and the
> open parenthesis.
I think you mean
/\b(?:$all_barriers)\s*\(/
as 'all_barriers' will be:
mb|wmb|rmb|smp_mb|smp_wmb|smp_rmb
and putting that into your suggestion results in:
/\bmb|wmb|rmb|smp_mb|smp_wmb|smp_rmb\s*\(/
which is clearly wrong - the \b only applies to 'mb' and the \s*\( only
applies to smp_rmb.
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