[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2] scripts/checkpatch.pl: Bug fix
From: |
Su Hang |
Subject: |
[Qemu-devel] [PATCH v2] scripts/checkpatch.pl: Bug fix |
Date: |
Tue, 3 Apr 2018 23:17:13 +0800 |
checkpatch.pl stops complaining about following pattern:
"""
do {
//do somethins;
} while (conditions);
"""
One things need to be mentioned:
Becasue `if`, `while` and `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 behind block may never run:
""" Line: 2415
if (!defined $suppress_ifbraces{$linenr - 1} &&
$line =~ /\b(if|while|for|else)\b/ &&
$line !~ /\#\s*if/ &&
$line !~ /\#\s*else/) {
"""
I'm not sure, please give me some advice.
(Sorry, I don't know this patch should base on which commit,
so I generate this patch based on
commit:fb8446d94ec7a3dc0c3a7e7da672406476f075ac,
I choose this by `git log -2 scripts/checkpath.pl`.
Sincerely say sorry, if I have misunderstand any meaning.)
Signed-off-by: Su Hang <address@hidden>
---
scripts/checkpatch.pl | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index a88af61ed4ee..d6f0747ba20a 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2352,8 +2352,22 @@ sub process {
}
}
-# check for missing bracing round if etc
- if ($line =~ /(^.*)\bif\b/ && $line !~ /\#\s*if/) {
+# check for missing bracing around if etc
+ if ($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) {
@@ -2362,7 +2376,6 @@ sub process {
if $#chunks >= 1;
}
if ($#chunks >= 0 && $level == 0) {
- my $allowed = 0;
my $seen = 0;
my $herectx = $here . "\n";
my $ln = $linenr - 1;
@@ -2406,7 +2419,7 @@ 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