| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Tue, 9 Apr 2013 13:19:58 +0200
From: Matthijs Kooijman <matthijs@...in.nl>
To: Andy Whitcroft <apw@...onical.com>, Joe Perches <joe@...ches.com>
Cc: Paul Zimmerman <Paul.Zimmerman@...opsys.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH] checkpatch: Check block comments outside of net
There was some code checking block comments in net/ and drivers/net/,
but nothing to check the regular block comment style.
The end of a block comment is the same as inside net, so that check can
just be generalized.
The start of block comment must not have any comment after the leading
/*, which requires a new check.
Tested with:
$ cat test.c
/* foo */
/*
* foo
*/
/* foo
*/
/* foo
* bar */
/**
* foo
* bar
*/
/****************************
* some long block comment
****************************/
struct foo {
int bar; /* another test */
};
$ ./scripts/checkpatch.pl -f test.c
WARNING: block comments put the leading /* on a separate line
+
+/* foo
WARNING: block comments put the leading /* on a separate line
+
+/* foo
WARNING: block comments put the trailing */ on a separate line
+ * bar */
WARNING: block comments put the leading /* on a separate line
+
+/**
WARNING: block comments put the leading /* on a separate line
+
+/****************************
total: 0 errors, 5 warnings, 25 lines checked
Signed-off-by: Matthijs Kooijman <matthijs@...in.nl>
---
Note that this patch rejects /** comments, since those are not mentioned
in Codingstyle. They are used in practice though (around 1000 occurences
in kernel/ alone), so perhaps they should be allowed and documented?
Also, the new check only fires when the previous line is empty, just
like the start of block comment check for net/. However, I couldn't find
any documentation on why this restriction is needed?
scripts/checkpatch.pl | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index b28cc38..64080ad 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1884,13 +1884,21 @@ sub process {
"networking block comments don't use an empty /* line, use /* Comment...\n" . $hereprev);
}
- if ($realfile =~ m@^(drivers/net/|net/)@ &&
- $rawline !~ m@^\+[ \t]*\*/[ \t]*$@ && #trailing */
+ if ($realfile !~ m@^(drivers/net/|net/)@ &&
+ $rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ && #inline /*...*/
+ $rawline !~ /^\+[ \t]*\/\*[ \t]*$/ && #blank /*
+ $rawline =~ /^\+[ \t]*\/\*.+$/ &&
+ $prevrawline =~ /^\+[ \t]*$/) {
+ WARN("BLOCK_COMMENT_STYLE",
+ "block comments use an empty /* line\n" . $hereprev);
+ }
+
+ if ($rawline !~ m@^\+[ \t]*\*/[ \t]*$@ && #trailing */
$rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ && #inline /*...*/
$rawline !~ m@^\+.*\*{2,}/[ \t]*$@ && #trailing **/
$rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) { #non blank */
- WARN("NETWORKING_BLOCK_COMMENT_STYLE",
- "networking block comments put the trailing */ on a separate line\n" . $herecurr);
+ WARN("BLOCK_COMMENT_STYLE",
+ "block comments put the trailing */ on a separate line\n" . $herecurr);
}
# check for spaces at the beginning of a line.
--
1.8.0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists