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Date: Sat, 20 Feb 2010 16:26:24 +0800
From: Hui Zhu <teawater@...il.com>
To: Stephen Hemminger <shemminger@...tta.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
"Luis R. Rodriguez" <lrodriguez@...eros.com>,
Sam Ravnborg <sam@...nborg.org>,
Vegard Nossum <vegard.nossum@...il.com>,
Uwe Kleine-KĂśnig
<u.kleine-koenig@...gutronix.de>,
"Robert P. J. Day" <rpjday@...shcourse.ca>,
WANG Cong <amwang@...hat.com>, Arnd Bergmann <arnd@...db.de>,
Arjan van de Ven <arjan@...ux.intel.com>,
Ozan Ăaglayan <ozan@...dus.org.tr>,
Matthew Wilcox <willy@...ux.intel.com>,
Steven Rostedt <rostedt@...dmis.org>,
Li Hong <lihong.hi@...il.com>, Ingo Molnar <mingo@...e.hu>,
Ralf Baechle <ralf@...ux-mips.org>,
Matt Fleming <matt@...sole-pimps.org>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 04/10] namespace: perlcritic warnings
On Sat, Feb 20, 2010 at 01:52, Stephen Hemminger <shemminger@...tta.com> wrote:
> Use local file handle not global.
> Make loop and other variables local in scope.
>
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
>
>
> --- a/scripts/namespace.pl 2010-02-19 08:59:00.432184740 -0800
> +++ b/scripts/namespace.pl 2010-02-19 09:05:52.672644797 -0800
> @@ -175,12 +175,11 @@ sub do_nm
> }
> if (! -e "$source.c" && ! -e "$source.S") {
> # No obvious source, exclude the object if it is conglomerate
> - if (! open(OBJDUMPDATA, "$objdump $basename|")) {
> - printf STDERR "$objdump $fullname failed $!\n";
> - return;
> - }
> + open(my $objdumpdata, "$objdump $basename|")
> + or die "$objdump $fullname failed $!\n";
Looks it just want return, are you sure have to change it to die?
> +
> my $comment;
> - while (<OBJDUMPDATA>) {
> + while (<$objdumpdata>) {
> chomp();
> if (/^In archive/) {
> # Archives are always conglomerate
> @@ -190,18 +189,18 @@ sub do_nm
> next if (! /^[ 0-9a-f]{5,} /);
> $comment .= substr($_, 43);
> }
> - close(OBJDUMPDATA);
> + close($objdumpdata);
> +
> if (!defined($comment) || $comment !~ /GCC\:.*GCC\:/m) {
> printf STDERR "No source file found for $fullname\n";
> }
> return;
> }
> - if (! open(NMDATA, "$nm $basename|")) {
> - printf STDERR "$nm $fullname failed $!\n";
> - return;
> - }
> + open (my $nmdata, "$nm $basename|")
> + or die "$nm $fullname failed $!\n";
> +
> my @nmdata;
> - while (<NMDATA>) {
> + while (<$nmdata>) {
> chop;
> ($type, $name) = (split(/ +/, $_, 3))[1..2];
> # Expected types
> @@ -268,7 +267,8 @@ sub do_nm
> }
> }
> }
> - close(NMDATA);
> + close($nmdata);
> +
> if ($#nmdata < 0) {
> if (
> $fullname ne "lib/brlock.o"
> @@ -316,8 +316,7 @@ sub drop_def
>
> sub list_multiply_defined
> {
> - my ($name, $module);
> - foreach $name (keys(%def)) {
> + foreach my $name (keys(%def)) {
> if ($#{$def{$name}} > 0) {
> # Special case for cond_syscall
> if ($#{$def{$name}} == 1 && $name =~ /^sys_/ &&
> @@ -333,8 +332,9 @@ sub list_multiply_defined
> &drop_def("arch/x86/kernel/vsyscall-sysenter_32.o", $name);
> next;
> }
> +
> printf "$name is multiply defined in :-\n";
> - foreach $module (@{$def{$name}}) {
> + foreach my $module (@{$def{$name}}) {
> printf "\t$module\n";
> }
> }
> @@ -343,12 +343,13 @@ sub list_multiply_defined
>
> sub resolve_external_references
> {
> - my ($object, $type, $name, $i, $j, $kstrtab, $ksymtab, $export);
> + my ($kstrtab, $ksymtab, $export);
> +
> printf "\n";
> - foreach $object (keys(%nmdata)) {
> + foreach my $object (keys(%nmdata)) {
> my $nmdata = $nmdata{$object};
> - for ($i = 0; $i <= $#{$nmdata}; ++$i) {
> - ($type, $name) = split(' ', $nmdata->[$i], 2);
> + for (my $i = 0; $i <= $#{$nmdata}; ++$i) {
> + my ($type, $name) = split(' ', $nmdata->[$i], 2);
> if ($type eq "U" || $type eq "w") {
> if (exists($def{$name}) || exists($ksymtab{$name})) {
> # add the owning object to the nmdata
> @@ -357,7 +358,7 @@ sub resolve_external_references
> $kstrtab = "R __kstrtab_$name";
> $ksymtab = "R __ksymtab_$name";
> $export = 0;
> - for ($j = 0; $j <= $#{$nmdata}; ++$j) {
> + for (my $j = 0; $j <= $#{$nmdata}; ++$j) {
> if ($nmdata->[$j] eq $kstrtab ||
> $nmdata->[$j] eq $ksymtab) {
> $export = 1;
> @@ -424,11 +425,11 @@ sub resolve_external_references
> sub list_extra_externals
> {
> my %noref = ();
> - my ($name, @module, $module, $export);
> - foreach $name (keys(%def)) {
> +
> + foreach my $name (keys(%def)) {
> if (! exists($ref{$name})) {
> - @module = @{$def{$name}};
> - foreach $module (@module) {
> + my @module = @{$def{$name}};
> + foreach my $module (@module) {
> if (! exists($noref{$module})) {
> $noref{$module} = [];
> }
> @@ -438,16 +439,16 @@ sub list_extra_externals
> }
> if (%noref) {
> printf "\nExternally defined symbols with no external references\n";
> - foreach $module (sort(keys(%noref))) {
> + foreach my $module (sort(keys(%noref))) {
> printf " $module\n";
> foreach (sort(@{$noref{$module}})) {
> - if (exists($export{$_})) {
> - $export = " (export only)";
> - }
> - else {
> - $export = "";
> - }
> - printf " $_$export\n";
> + my $export;
> + if (exists($export{$_})) {
> + $export = " (export only)";
> + } else {
> + $export = "";
> + }
> + printf " $_$export\n";
> }
> }
> }
>
> --
>
>
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