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checkpatch: allow control over line length warning, default remains 80 

Some projects might want a longer line length so allow a command line
--max-line-length=n control over the long line warnings.  The default line
length is 80.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Constantine Shulyupin <const@makelinux.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2012-12-17 16:01:54 -08:00 committed by Linus Torvalds
parent 03df4b51f3
commit 6cd7f3869c
1 changed files with 6 additions and 3 deletions
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9
scripts/checkpatch.pl
View File

@ -33,6 +33,7 @@ my %ignore_type = ();
my @ignore = (); my @ignore = ();
my $help = 0; my $help = 0;
my $configuration_file = ".checkpatch.conf"; my $configuration_file = ".checkpatch.conf";
my $max_line_length = 80;
sub help { sub help {
my ($exitcode) = @_; my ($exitcode) = @_;
@ -51,6 +52,7 @@ Options:
-f, --file treat FILE as regular source file -f, --file treat FILE as regular source file
--subjective, --strict enable more subjective tests --subjective, --strict enable more subjective tests
--ignore TYPE(,TYPE2...) ignore various comma separated message types --ignore TYPE(,TYPE2...) ignore various comma separated message types
--max-line-length=n set the maximum line length, if exceeded, warn
--show-types show the message "types" in the output --show-types show the message "types" in the output
--root=PATH PATH to the kernel tree root --root=PATH PATH to the kernel tree root
--no-summary suppress the per-file summary --no-summary suppress the per-file summary
@ -107,6 +109,7 @@ GetOptions(
'strict!' => \$check, 'strict!' => \$check,
'ignore=s' => \@ignore, 'ignore=s' => \@ignore,
'show-types!' => \$show_types, 'show-types!' => \$show_types,
'max-line-length=i' => \$max_line_length,
'root=s' => \$root, 'root=s' => \$root,
'summary!' => \$summary, 'summary!' => \$summary,
'mailback!' => \$mailback, 'mailback!' => \$mailback,
@ -1760,15 +1763,15 @@ sub process {
# check we are in a valid source file if not then ignore this hunk # check we are in a valid source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/); next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
#80 column limit #line length limit
if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ && if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
$rawline !~ /^.\s*\*\s*\@$Ident\s/ && $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
!($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ || !($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(KERN_\S+\s*|[^"]*))?"[X\t]*"\s*(?:|,|\)\s*;)\s*$/ ||
$line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) && $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
$length > 80) $length > $max_line_length)
{ {
WARN("LONG_LINE", WARN("LONG_LINE",
"line over 80 characters\n" . $herecurr); "line over $max_line_length characters\n" . $herecurr);
} }
# Check for user-visible strings broken across lines, which breaks the ability # Check for user-visible strings broken across lines, which breaks the ability