Bug fix: checkpatch.pl stops complaining about following pattern:
"""
do {
//do somethins;
} while (conditions);
"""
Two things need to be mentioned:
1) Before I casue this bug, checkpatch.pl will raise a wrong
complain:
"""
ERROR: braces {} are necessary even for single statement blocks
+ for (i == 0; i < 0; ++i)
+ {
+ ;
+ } else
"""
In this patch, this wrong complain get fixed.
2) Becasue all(`if`, `while`, `for`) check have been done in this
`if` block(Line: 2356), and this block contains following statement:
""" Line: 2379
$suppress_ifbraces{$ln + $offset} = 1;
"""
So the block after this block may never run:
""" Line: 2415
if (!defined $suppress_ifbraces{$linenr - 1} &&
$line =~ /\b(if|while|for|else)\b/ &&
$line !~ /\#\s*if/ &&
$line !~ /\#\s*else/) {
"""
But I think, maybe it's ok, becasue all check has been done by
up block. I'm not sure, please give me some advice.
Signed-off-by: Su Hang <suhan...@mails.ucas.ac.cn>
---
scripts/checkpatch.pl | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d1fe79bcc47c..2ca833f22e5a 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2355,6 +2355,18 @@ sub process {
# check for missing bracing around if etc
if ($line =~ /(^.*)\b(?:if|while|for)\b/ &&
$line !~ /\#\s*if/) {
+ my $allowed = 0;
+
+ # Check the pre-context.
+ if ($line =~ /(\}.*?)$/) {
+ my $pre = $1;
+
+ if ($line !~ /else/) {
+ print "APW: ALLOWED: pre<$pre>
line<$line>\n"
+ if $dbg_adv_apw;
+ $allowed = 1;
+ }
+ }
my ($level, $endln, @chunks) =
ctx_statement_full($linenr, $realcnt, 1);
if ($dbg_adv_apw) {
@@ -2363,7 +2375,6 @@ sub process {
if $#chunks >= 1;
}
if ($#chunks >= 0 && $level == 0) {
- my $allowed = 0;
my $seen = 0;
my $herectx = $here . "\n";
my $ln = $linenr - 1;
@@ -2407,7 +2418,7 @@ sub process {
$allowed = 1;
}
}
- if ($seen != ($#chunks + 1)) {
+ if ($seen != ($#chunks + 1) && !$allowed) {
ERROR("braces {} are necessary for all
arms of this statement\n" . $herectx);
}
}
--
2.7.4
