Goto labels are commonly written in the leftmost column (sometimes with
one space in front), regardless of indentation level. Sometimes they're
on a line of their own, but sometimes the same line is shared with a
normal code statement that then starts at the expected indentation
level. When checking indentation, we should check where that normal
piece of code starts, not where the label starts (there's a separate
INDENTED_LABEL test to check the label itself). Therefore, the
line_stats() function that is used to get indentation level should treat
goto labels like whitespace. The SUSPICIOUS_CODE_INDENT test also needs
to explicitly ignore labels to make sure it doesn't get confused by
them.
Signed-off-by: Julius Werner <jwer...@chromium.org>
---
scripts/checkpatch.pl | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c1dfc0107be41d..d89367a59e7d37 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1396,8 +1396,12 @@ sub copy_spacing {
sub line_stats {
my ($line) = @_;
- # Drop the diff line leader and expand tabs
+ # Drop the diff line leader
$line =~ s/^.//;
+
+ # Treat labels like whitespace when counting indentation
+ $line =~ s/^( ?$Ident:)/" " x length($1)/e;
+
$line = expand_tabs($line);
# Pick the indent from the front of the line.
@@ -4197,6 +4201,9 @@ sub process {
# Remove any comments
$s_next =~ s/$;//g;
+ # Remove any leading labels
+ $s_next =~ s/\n( ?$Ident:)/"\n" . " " x length($1)/eg;
+
# Skip this check for in case next statement starts
with 'else'
if ($s_next !~ /\s*\belse\b/) {
--
2.29.2
