diff options
| author | Andy Whitcroft <apw@shadowen.org> | 2008-10-15 22:02:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 11:21:37 -0700 |
| commit | 170d3a22688f06fda42e353bbccd0f3df89f3d94 (patch) | |
| tree | 77dda2b9e7890d95452cfe3255d8d83187be579a /scripts/checkpatch.pl | |
| parent | a6a84062821738426ed4f58f4d584ecb7feb3dee (diff) | |
| download | lwn-170d3a22688f06fda42e353bbccd0f3df89f3d94.tar.gz lwn-170d3a22688f06fda42e353bbccd0f3df89f3d94.zip | |
checkpatch: handle do without braces if we have enough context
If we have sufficient context detect and handle do without braces ({).
Else these incorrectly trigger a trailing statements error for the
associated while.
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>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 17e1d94fa1fa..19690a2ddb74 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1051,6 +1051,7 @@ sub process { # suppression flags my %suppress_ifbraces; + my %suppress_whiletrailers; # Pre-scan the patch sanitizing the lines. # Pre-scan the patch looking for any __setup documentation. @@ -1156,6 +1157,7 @@ sub process { $prev_values = 'E'; %suppress_ifbraces = (); + %suppress_whiletrailers = (); next; # track the line number as we move through the hunk, note that @@ -1301,9 +1303,9 @@ sub process { } # Check for potential 'bare' types - my ($stat, $cond, $line_nr_next, $remain_next); + my ($stat, $cond, $line_nr_next, $remain_next, $off_next); if ($realcnt && $line =~ /.\s*\S/) { - ($stat, $cond, $line_nr_next, $remain_next) = + ($stat, $cond, $line_nr_next, $remain_next, $off_next) = ctx_statement_block($linenr, $realcnt, 0); $stat =~ s/\n./\n /g; $cond =~ s/\n./\n /g; @@ -1952,7 +1954,26 @@ sub process { # Check for illegal assignment in if conditional -- and check for trailing # statements after the conditional. - if ($line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) { + if ($line =~ /do\s*(?!{)/) { + my ($stat_next) = ctx_statement_block($line_nr_next, + $remain_next, $off_next); + $stat_next =~ s/\n./\n /g; + ##print "stat<$stat> stat_next<$stat_next>\n"; + + if ($stat_next =~ /^\s*while\b/) { + # If the statement carries leading newlines, + # then count those as offsets. + my ($whitespace) = + ($stat_next =~ /^((?:\s*\n[+-])*\s*)/s); + my $offset = + statement_rawlines($whitespace) - 1; + + $suppress_whiletrailers{$line_nr_next + + $offset} = 1; + } + } + if (!defined $suppress_whiletrailers{$linenr} && + $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) { my ($s, $c) = ($stat, $cond); if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/) { |