mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
4a0df2ef45
This version brings a host of changes to cure false positives and
bugs detected on patches submitted to lkml and -mm. It also brings
a number of new tests in response to reviews, of particular note:
- catch use of volatile
- allow deprecated functions to be listed in feature-removal-schedule.txt
- warn about #ifdef's in c files
- check that spinlock_t and struct mutex use is commented
- report on architecture specific defines being used
- report memory barriers without an associated comment
Full changelog:
catch use of volatile
convert other quoted string checks to common routine
alloc deprecated functions to be listed in feature-removal-schedule.txt
split out the line length and indent for each line
improve switch block handling
handle GNU diff context lines with no leading space
warn about #ifdef's in c files
tidy up tests for signed-off-by using raw mode
check that spinlock_t and struct mutex use is commented
syntax checks for open brace placement may drop off the bottom of hunk
report memory barriers without an associated comment
when a sign off is present but ugly do not report it missing
do not mistake bitfield definitions for indented labels
report on architecture specific defines being used
major update to the operator checks
prevent switch/if/while etc matching foo_switch
generify assignement in condition error message
introduce an operator context marker
Version: 0.03
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
756 lines
19 KiB
Perl
Executable file
756 lines
19 KiB
Perl
Executable file
#!/usr/bin/perl -w
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# (c) 2001, Dave Jones. <davej@codemonkey.org.uk> (the file handling bit)
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# (c) 2005, Joel Scohpp <jschopp@austin.ibm.com> (the ugly bit)
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# (c) 2007, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite, etc)
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# Licensed under the terms of the GNU GPL License version 2
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use strict;
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my $P = $0;
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my $V = '0.03';
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use Getopt::Long qw(:config no_auto_abbrev);
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my $quiet = 0;
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my $tree = 1;
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my $chk_signoff = 1;
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my $chk_patch = 1;
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GetOptions(
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'q|quiet' => \$quiet,
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'tree!' => \$tree,
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'signoff!' => \$chk_signoff,
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'patch!' => \$chk_patch,
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) or exit;
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my $exit = 0;
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if ($#ARGV < 0) {
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print "usage: patchstylecheckemail.pl [options] patchfile\n";
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print "version: $V\n";
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print "options: -q => quiet\n";
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print " --no-tree => run without a kernel tree\n";
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exit(1);
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}
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if ($tree && !top_of_kernel_tree()) {
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print "Must be run from the top-level dir. of a kernel tree\n";
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exit(2);
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}
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my @dep_includes = ();
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my @dep_functions = ();
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my $removal = 'Documentation/feature-removal-schedule.txt';
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if ($tree && -f $removal) {
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open(REMOVE, "<$removal") || die "$P: $removal: open failed - $!\n";
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while (<REMOVE>) {
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if (/^Files:\s+(.*\S)/) {
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for my $file (split(/[, ]+/, $1)) {
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if ($file =~ m@include/(.*)@) {
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push(@dep_includes, $1);
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}
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}
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} elsif (/^Funcs:\s+(.*\S)/) {
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for my $func (split(/[, ]+/, $1)) {
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push(@dep_functions, $func);
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}
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}
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}
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}
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my @lines = ();
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while (<>) {
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chomp;
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push(@lines, $_);
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if (eof(ARGV)) {
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if (!process($ARGV, @lines)) {
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$exit = 1;
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}
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@lines = ();
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}
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}
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exit($exit);
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sub top_of_kernel_tree {
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if ((-f "COPYING") && (-f "CREDITS") && (-f "Kbuild") &&
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(-f "MAINTAINERS") && (-f "Makefile") && (-f "README") &&
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(-d "Documentation") && (-d "arch") && (-d "include") &&
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(-d "drivers") && (-d "fs") && (-d "init") && (-d "ipc") &&
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(-d "kernel") && (-d "lib") && (-d "scripts")) {
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return 1;
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}
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return 0;
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}
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sub expand_tabs {
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my ($str) = @_;
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my $res = '';
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my $n = 0;
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for my $c (split(//, $str)) {
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if ($c eq "\t") {
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$res .= ' ';
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$n++;
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for (; ($n % 8) != 0; $n++) {
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$res .= ' ';
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}
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next;
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}
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$res .= $c;
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$n++;
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}
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return $res;
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}
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sub line_stats {
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my ($line) = @_;
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# Drop the diff line leader and expand tabs
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$line =~ s/^.//;
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$line = expand_tabs($line);
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# Pick the indent from the front of the line.
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my ($white) = ($line =~ /^(\s*)/);
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return (length($line), length($white));
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}
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sub ctx_block_get {
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my ($linenr, $remain, $outer) = @_;
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my $line;
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my $start = $linenr - 1;
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my $end = $linenr - 1 + $remain;
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my $blk = '';
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my @o;
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my @c;
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my @res = ();
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for ($line = $start; $line < $end; $line++) {
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$blk .= $lines[$line];
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@o = ($blk =~ /\{/g);
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@c = ($blk =~ /\}/g);
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if (!$outer || (scalar(@o) - scalar(@c)) == 1) {
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push(@res, $lines[$line]);
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}
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last if (scalar(@o) == scalar(@c));
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}
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return @res;
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}
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sub ctx_block_outer {
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my ($linenr, $remain) = @_;
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return ctx_block_get($linenr, $remain, 1);
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}
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sub ctx_block {
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my ($linenr, $remain) = @_;
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return ctx_block_get($linenr, $remain, 0);
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}
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sub ctx_locate_comment {
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my ($first_line, $end_line) = @_;
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# Catch a comment on the end of the line itself.
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my ($current_comment) = ($lines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*$@);
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return $current_comment if (defined $current_comment);
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# Look through the context and try and figure out if there is a
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# comment.
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my $in_comment = 0;
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$current_comment = '';
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for (my $linenr = $first_line; $linenr < $end_line; $linenr++) {
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my $line = $lines[$linenr - 1];
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##warn " $line\n";
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if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
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$in_comment = 1;
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}
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if ($line =~ m@/\*@) {
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$in_comment = 1;
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}
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if (!$in_comment && $current_comment ne '') {
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$current_comment = '';
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}
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$current_comment .= $line . "\n" if ($in_comment);
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if ($line =~ m@\*/@) {
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$in_comment = 0;
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}
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}
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chomp($current_comment);
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return($current_comment);
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}
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sub ctx_has_comment {
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my ($first_line, $end_line) = @_;
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my $cmt = ctx_locate_comment($first_line, $end_line);
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##print "LINE: $lines[$end_line - 1 ]\n";
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##print "CMMT: $cmt\n";
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return ($cmt ne '');
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}
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sub cat_vet {
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my ($vet) = @_;
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$vet =~ s/\t/^I/;
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$vet =~ s/$/\$/;
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return $vet;
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}
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sub has_non_quoted {
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return ($_[0] =~ m{$_[1]} and $_[0] !~ m{\".*$_[1].*\"});
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}
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sub process {
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my $filename = shift;
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my @lines = @_;
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my $linenr=0;
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my $prevline="";
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my $stashline="";
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my $length;
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my $indent;
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my $previndent=0;
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my $stashindent=0;
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my $clean = 1;
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my $signoff = 0;
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my $is_patch = 0;
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# Trace the real file/line as we go.
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my $realfile = '';
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my $realline = 0;
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my $realcnt = 0;
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my $here = '';
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my $in_comment = 0;
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my $first_line = 0;
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foreach my $line (@lines) {
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$linenr++;
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#extract the filename as it passes
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if ($line=~/^\+\+\+\s+(\S+)/) {
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$realfile=$1;
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$in_comment = 0;
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next;
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}
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#extract the line range in the file after the patch is applied
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if ($line=~/^\@\@ -\d+,\d+ \+(\d+)(,(\d+))? \@\@/) {
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$is_patch = 1;
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$first_line = $linenr + 1;
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$in_comment = 0;
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$realline=$1-1;
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if (defined $2) {
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$realcnt=$3+1;
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} else {
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$realcnt=1+1;
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}
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next;
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}
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# track the line number as we move through the hunk, note that
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# new versions of GNU diff omit the leading space on completely
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# blank context lines so we need to count that too.
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if ($line =~ /^( |\+|$)/) {
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$realline++;
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$realcnt-- if ($realcnt != 0);
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# track any sort of multi-line comment. Obviously if
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# the added text or context do not include the whole
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# comment we will not see it. Such is life.
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#
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# Guestimate if this is a continuing comment. If this
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# is the start of a diff block and this line starts
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# ' *' then it is very likely a comment.
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if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
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$in_comment = 1;
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}
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if ($line =~ m@/\*@) {
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$in_comment = 1;
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}
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if ($line =~ m@\*/@) {
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$in_comment = 0;
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}
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# Measure the line length and indent.
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($length, $indent) = line_stats($line);
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# Track the previous line.
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($prevline, $stashline) = ($stashline, $line);
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($previndent, $stashindent) = ($stashindent, $indent);
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}
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#make up the handle for any error we report on this line
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$here = "PATCH: $ARGV:$linenr:";
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$here .= "\nFILE: $realfile:$realline:" if ($realcnt != 0);
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my $herecurr = "$here\n$line\n\n";
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my $hereprev = "$here\n$prevline\n$line\n\n";
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#check the patch for a signoff:
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if ($line =~ /^\s*Signed-off-by:\s/) {
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$signoff++;
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} elsif ($line =~ /^\s*signed-off-by:/i) {
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# This is a signoff, if ugly, so do not double report.
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$signoff++;
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if (!($line =~ /^\s*Signed-off-by:/)) {
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print "use Signed-off-by:\n";
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print "$herecurr";
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$clean = 0;
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}
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if ($line =~ /^\s*signed-off-by:\S/i) {
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print "need space after Signed-off-by:\n";
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print "$herecurr";
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$clean = 0;
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}
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}
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#ignore lines not being added
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if ($line=~/^[^\+]/) {next;}
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# check we are in a valid source file *.[hcsS] if not then ignore this hunk
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next if ($realfile !~ /\.[hcsS]$/);
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#trailing whitespace
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if ($line=~/\S\s+$/) {
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my $herevet = "$here\n" . cat_vet($line) . "\n\n";
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print "trailing whitespace\n";
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print "$herevet";
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$clean = 0;
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}
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#80 column limit
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if (!($prevline=~/\/\*\*/) && $length > 80) {
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print "line over 80 characters\n";
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print "$herecurr";
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$clean = 0;
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}
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# check we are in a valid source file *.[hc] if not then ignore this hunk
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next if ($realfile !~ /\.[hc]$/);
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# at the beginning of a line any tabs must come first and anything
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# more than 8 must use tabs.
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if ($line=~/^\+\s* \t\s*\S/ or $line=~/^\+\s* \s*/) {
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my $herevet = "$here\n" . cat_vet($line) . "\n\n";
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print "use tabs not spaces\n";
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print "$herevet";
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$clean = 0;
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}
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#
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# The rest of our checks refer specifically to C style
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# only apply those _outside_ comments.
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#
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next if ($in_comment);
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# no C99 // comments
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if (has_non_quoted($line, '//')) {
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print "do not use C99 // comments\n";
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print "$herecurr";
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$clean = 0;
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}
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# Remove comments from the line before processing.
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$line =~ s@/\*.*\*/@@g;
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$line =~ s@/\*.*@@;
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$line =~ s@.*\*/@@;
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$line =~ s@//.*@@;
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#EXPORT_SYMBOL should immediately follow its function closing }.
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if (($line =~ /EXPORT_SYMBOL.*\(.*\)/) ||
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($line =~ /EXPORT_UNUSED_SYMBOL.*\(.*\)/)) {
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if (($prevline !~ /^}/) &&
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($prevline !~ /^\+}/) &&
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($prevline !~ /^ }/)) {
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print "EXPORT_SYMBOL(func); should immediately follow its function\n";
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print "$herecurr";
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$clean = 0;
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}
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}
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# check for static initialisers.
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if ($line=~/\s*static\s.*=\s+(0|NULL);/) {
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print "do not initialise statics to 0 or NULL\n";
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print "$herecurr";
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$clean = 0;
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}
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# check for new typedefs.
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if ($line=~/\s*typedef\s/) {
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print "do not add new typedefs\n";
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print "$herecurr";
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$clean = 0;
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}
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# * goes on variable not on type
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if ($line=~/[A-Za-z\d_]+\* [A-Za-z\d_]+/) {
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print "\"foo* bar\" should be \"foo *bar\"\n";
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print "$herecurr";
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$clean = 0;
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}
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# # no BUG() or BUG_ON()
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# if ($line =~ /\b(BUG|BUG_ON)\b/) {
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# print "Try to use WARN_ON & Recovery code rather than BUG() or BUG_ON()\n";
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# print "$herecurr";
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# $clean = 0;
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# }
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# printk should use KERN_* levels
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if ($line =~ /\bprintk\((?!KERN_)/) {
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print "printk() should include KERN_ facility level\n";
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print "$herecurr";
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$clean = 0;
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}
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#function brace can't be on same line, except for #defines of do while, or if closed on same line
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if (($line=~/[A-Za-z\d_]+\**\s+\**[A-Za-z\d_]+\(.*\).* {/) and
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!($line=~/\#define.*do\s{/) and !($line=~/}/)) {
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print "braces following function declarations go on the next line\n";
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print "$herecurr";
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$clean = 0;
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}
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# Note we expand the line with the leading + as the real
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# line will be displayed with the leading + and the tabs
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# will therefore also expand that way.
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my $opline = $line;
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$opline = expand_tabs($opline);
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$opline =~ s/^.//;
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if (!($line=~/\#\s*include/)) {
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# Check operator spacing.
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my @elements = split(/(<<=|>>=|<=|>=|==|!=|\+=|-=|\*=|\/=|%=|\^=|\|=|&=|->|<<|>>|<|>|=|!|~|&&|\|\||,|\^|\+\+|--|;|&|\||\+|-|\*|\/\/|\/)/, $opline);
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my $off = 1;
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for (my $n = 0; $n < $#elements; $n += 2) {
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$off += length($elements[$n]);
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my $a = '';
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$a = 'V' if ($elements[$n] ne '');
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$a = 'W' if ($elements[$n] =~ /\s$/);
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$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
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$a = 'O' if ($elements[$n] eq '');
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$a = 'E' if ($elements[$n] eq '' && $n == 0);
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my $op = $elements[$n + 1];
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my $c = '';
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if (defined $elements[$n + 2]) {
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$c = 'V' if ($elements[$n + 2] ne '');
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$c = 'W' if ($elements[$n + 2] =~ /^\s/);
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$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
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$c = 'O' if ($elements[$n + 2] eq '');
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} else {
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$c = 'E';
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}
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my $ctx = "${a}x${c}";
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my $at = "(ctx:$ctx)";
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my $ptr = (" " x $off) . "^";
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my $hereptr = "$here\n$line\n$ptr\n\n";
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##print "<$s1:$op:$s2> <$elements[$n]:$elements[$n + 1]:$elements[$n + 2]>\n";
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# Skip things apparently in quotes.
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next if ($line=~/\".*\Q$op\E.*\"/ or $line=~/\'\Q$op\E\'/);
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# We need ; as an operator. // is a comment.
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if ($op eq ';' or $op eq '//') {
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# -> should have no spaces
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} elsif ($op eq '->') {
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if ($ctx =~ /Wx.|.xW/) {
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print "no spaces around that '$op' $at\n";
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print "$hereptr";
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$clean = 0;
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}
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# , must have a space on the right.
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} elsif ($op eq ',') {
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if ($ctx !~ /.xW|.xE/) {
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print "need space after that '$op' $at\n";
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print "$hereptr";
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$clean = 0;
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}
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|
# unary ! and unary ~ are allowed no space on the right
|
|
} elsif ($op eq '!' or $op eq '~') {
|
|
if ($ctx !~ /[WOEB]x./) {
|
|
print "need space before that '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
if ($ctx =~ /.xW/) {
|
|
print "no space after that '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# unary ++ and unary -- are allowed no space on one side.
|
|
} elsif ($op eq '++' or $op eq '--') {
|
|
if ($ctx !~ /[WOB]x[^W]|[^W]x[WOB]/) {
|
|
print "need space one side of that '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# & is both unary and binary
|
|
# unary:
|
|
# a &b
|
|
# binary (consistent spacing):
|
|
# a&b OK
|
|
# a & b OK
|
|
#
|
|
# boiling down to: if there is a space on the right then there
|
|
# should be one on the left.
|
|
#
|
|
# - is the same
|
|
#
|
|
# * is the same only adding:
|
|
# type:
|
|
# (foo *)
|
|
# (foo **)
|
|
#
|
|
} elsif ($op eq '&' or $op eq '-') {
|
|
if ($ctx !~ /VxV|[EWB]x[WE]|[EWB]x[VO]/) {
|
|
print "need space before that '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
|
|
} elsif ($op eq '*') {
|
|
if ($ctx !~ /VxV|[EWB]x[WE]|[EWB]x[VO]|[EWO]x[OBV]/) {
|
|
print "need space before that '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# << and >> may either have or not have spaces both sides
|
|
} elsif ($op eq '<<' or $op eq '>>' or $op eq '+' or $op eq '/' or
|
|
$op eq '^' or $op eq '|')
|
|
{
|
|
if ($ctx !~ /VxV|WxW|VxE|WxE/) {
|
|
print "need consistent spacing around '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# All the others need spaces both sides.
|
|
} elsif ($ctx !~ /[EW]x[WE]/) {
|
|
print "need spaces around that '$op' $at\n";
|
|
print "$hereptr";
|
|
$clean = 0;
|
|
}
|
|
$off += length($elements[$n + 1]);
|
|
}
|
|
}
|
|
|
|
#need space before brace following if, while, etc
|
|
if ($line=~/\(.*\){/) {
|
|
print "need a space before the brace\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
#goto labels aren't indented, allow a single space however
|
|
if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
|
|
!($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
|
|
print "labels should not be indented\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# Need a space before open parenthesis after if, while etc
|
|
if ($line=~/\b(if|while|for|switch)\(/) {
|
|
print "need a space before the open parenthesis\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# Check for illegal assignment in if conditional.
|
|
if ($line=~/\b(if|while)\s*\(.*[^<>!=]=[^=].*\)/) {
|
|
print "do not use assignment in condition\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# Check for }<nl>else {, these must be at the same
|
|
# indent level to be relevant to each other.
|
|
if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ and
|
|
$previndent == $indent) {
|
|
print "else should follow close brace\n";
|
|
print "$hereprev";
|
|
$clean = 0;
|
|
}
|
|
|
|
# Check for switch () and associated case and default
|
|
# statements should be at the same indent.
|
|
if ($line=~/\bswitch\s*\(.*\)/) {
|
|
my $err = '';
|
|
my $sep = '';
|
|
my @ctx = ctx_block_outer($linenr, $realcnt);
|
|
shift(@ctx);
|
|
for my $ctx (@ctx) {
|
|
my ($clen, $cindent) = line_stats($ctx);
|
|
if ($ctx =~ /\s*(case\s+|default:)/ &&
|
|
$indent != $cindent) {
|
|
$err .= "$sep$ctx\n";
|
|
$sep = '';
|
|
} else {
|
|
$sep = "[...]\n";
|
|
}
|
|
}
|
|
if ($err ne '') {
|
|
print "switch and case should be at the same indent\n";
|
|
print "$here\n$line\n$err\n";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
|
|
#studly caps, commented out until figure out how to distinguish between use of existing and adding new
|
|
# if (($line=~/[\w_][a-z\d]+[A-Z]/) and !($line=~/print/)) {
|
|
# print "No studly caps, use _\n";
|
|
# print "$herecurr";
|
|
# $clean = 0;
|
|
# }
|
|
|
|
#no spaces allowed after \ in define
|
|
if ($line=~/\#define.*\\\s$/) {
|
|
print("Whitepspace after \\ makes next lines useless\n");
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
#warn if <asm/foo.h> is #included and <linux/foo.h> is available.
|
|
if ($tree && $line =~ qr|\s*\#\s*include\s*\<asm\/(.*)\.h\>|) {
|
|
my $checkfile = "include/linux/$1.h";
|
|
if (-f $checkfile) {
|
|
print "Use #include <linux/$1.h> instead of <asm/$1.h>\n";
|
|
print $herecurr;
|
|
$clean = 0;
|
|
}
|
|
}
|
|
|
|
#if/while/etc brace do not go on next line, unless #defining a do while loop, or if that brace on the next line is for something else
|
|
if ($prevline=~/\b(if|while|for|switch)\s*\(/) {
|
|
my @opened = $prevline=~/\(/g;
|
|
my @closed = $prevline=~/\)/g;
|
|
my $nr_line = $linenr;
|
|
my $remaining = $realcnt;
|
|
my $next_line = $line;
|
|
my $extra_lines = 0;
|
|
my $display_segment = $prevline;
|
|
|
|
while ($remaining > 1 && scalar @opened > scalar @closed) {
|
|
$prevline .= $next_line;
|
|
$display_segment .= "\n" . $next_line;
|
|
$next_line = $lines[$nr_line];
|
|
$nr_line++;
|
|
$remaining--;
|
|
|
|
@opened = $prevline=~/\(/g;
|
|
@closed = $prevline=~/\)/g;
|
|
}
|
|
|
|
if (($prevline=~/\b(if|while|for|switch)\s*\(.*\)\s*$/) and ($next_line=~/{/) and
|
|
!($next_line=~/\b(if|while|for)/) and !($next_line=~/\#define.*do.*while/)) {
|
|
print "That { should be on the previous line\n";
|
|
print "$here\n$display_segment\n$next_line\n\n";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
|
|
#multiline macros should be enclosed in a do while loop
|
|
if (($prevline=~/\#define.*\\/) and !($prevline=~/do\s+{/) and
|
|
!($prevline=~/\(\{/) and ($line=~/;\s*\\/) and
|
|
!($line=~/do.*{/) and !($line=~/\(\{/)) {
|
|
print "Macros with multiple statements should be enclosed in a do - while loop\n";
|
|
print "$hereprev";
|
|
$clean = 0;
|
|
}
|
|
|
|
# don't include deprecated include files
|
|
for my $inc (@dep_includes) {
|
|
if ($line =~ m@\#\s*include\s*\<$inc>@) {
|
|
print "Don't use <$inc>: see Documentation/feature-removal-schedule.txt\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
|
|
# don't use deprecated functions
|
|
for my $func (@dep_functions) {
|
|
if (has_non_quoted($line, '\b' . $func . '\b')) {
|
|
print "Don't use $func(): see Documentation/feature-removal-schedule.txt\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
|
|
# no volatiles please
|
|
if (has_non_quoted($line, '\bvolatile\b')) {
|
|
print "Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# warn about #ifdefs in C files
|
|
if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
|
|
print "#ifdef in C files should be avoided\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
|
|
# check for spinlock_t definitions without a comment.
|
|
if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/) {
|
|
my $which = $1;
|
|
if (!ctx_has_comment($first_line, $linenr)) {
|
|
print "$1 definition without comment\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
# check for memory barriers without a comment.
|
|
if ($line =~ /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/) {
|
|
if (!ctx_has_comment($first_line, $linenr)) {
|
|
print "memory barrier without comment\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
# check of hardware specific defines
|
|
if ($line =~ m@^.#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@) {
|
|
print "architecture specific defines should be avoided\n";
|
|
print "$herecurr";
|
|
$clean = 0;
|
|
}
|
|
}
|
|
|
|
if ($chk_patch && !$is_patch) {
|
|
$clean = 0;
|
|
print "Does not appear to be a unified-diff format patch\n";
|
|
}
|
|
if ($is_patch && $chk_signoff && $signoff == 0) {
|
|
$clean = 0;
|
|
print "Missing Signed-off-by: line(s)\n";
|
|
}
|
|
|
|
if ($clean == 1 && $quiet == 0) {
|
|
print "Your patch has no obvious style problems and is ready for submission.\n"
|
|
}
|
|
if ($clean == 0 && $quiet == 0) {
|
|
print "Your patch has style problems, please review. If any of these errors\n";
|
|
print "are false positives report them to the maintainer, see\n";
|
|
print "CHECKPATCH in MAINTAINERS.\n";
|
|
}
|
|
return $clean;
|
|
}
|