linux-kernel - Re: [PATCH] streamline_config.pl: use references rather than copied data structures

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Date:	Thu, 27 May 2010 16:24:44 +0200
From:	Toralf Förster <toralf.foerster@....de>
To:	rostedt@...dmis.org
Cc:	zippel@...ux-m68k.org, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] streamline_config.pl: use references rather than copied data structures


Steven Rostedt wrote at 15:07:29
> On Thu, 2010-05-27 at 13:42 +0200, Toralf Förster wrote:
> > IMHO there's no need for a copy-by-value
> 
> Hi Toralf,
> 
> I'm sorry but "Your Humble Opinion" is not rational to make changes.
> 
> A change to the code must have a reason other than opinion. You must be
> able to show that there is actual benefit for a change, or at least
> explain it.
> 
> Every time a change is made, there is potential for a new bug to be
> introduced (especially in Perl). So, unless there's actual need for a
> change, don't make one.
> 
> This is not performance critical code. If you are fixing a bug, or
> adding a feature, then sure. But I really don't want changes that do
> nothing but skin the cat a different way.
> 
> Thanks,
> 
> -- Steve

Understood and accepted.

What's about the following 2 snippets (a trivial typo and an attempt to 
prevent a possible trap) ? :


diff --git a/scripts/kconfig/streamline_config.pl 
b/scripts/kconfig/streamline_config.pl
index afbd54a..3f54911 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -242,7 +242,7 @@ foreach my $makefile (@makefiles) {
            foreach my $obj (split /\s+/,$objs) {
                $obj =~ s/-/_/g;
                if ($obj =~ /(.*)\.o$/) {
-                   # Objects may bes enabled by more than one config.
+                   # Objects may be enabled by more than one config.
                    # Store configs in an array.
                    my @arr;



diff --git a/scripts/kconfig/streamline_config.pl 
b/scripts/kconfig/streamline_config.pl
index afbd54a..9726946 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -307,7 +307,7 @@ close (LIN);
 my %configs;
 foreach my $module (keys(%modules)) {
     if (defined($objects{$module})) {
-       @arr = @{$objects{$module}};
+       my @arr = @{$objects{$module}};
        foreach my $conf (@arr) {
            $configs{$conf} = $module;
        }


-- 
MfG/Sincerely
Toralf Förster

pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

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