linux-kernel - [PATCH] checkpatch: Add for_each tests to indentation and brace tests

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Date:	Sat, 12 Jul 2014 22:33:54 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] checkpatch: Add for_each tests to indentation and brace
 tests

All the various for_each loop macros were not tested for
trailing brace on the following lines and for bad indentation.

Add them.

Reported-by: Greg KH <gregkh@...uxfoundation.org>
Signed-off-by: Joe Perches <joe@...ches.com>
---
On Sat, 2014-07-12 at 16:08 -0700, Greg KH wrote:
> The following function:
> 
> $ cat foo.c 
> 
> static int foo_init(void)
> {
> 
> 	list_for_each_entry(foo, &foo, list)
> 	{
> 		do_something_foo(foo);
> 	}
> 
> 	return 0;
> }
> 
> Will not be caught by checkpatch:
> 
> $ ./scripts/checkpatch.pl --file foo.c 
> total: 0 errors, 0 warnings, 11 lines checked
> 
> foo.c has no obvious style problems and is ready for submission.

 scripts/checkpatch.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d5ac001..5efbf50 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2698,7 +2698,7 @@ sub process {
 
 # if/while/etc brace do not go on next line, unless defining a do while loop,
 # or if that brace on the next line is for something else
-		if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
+		if ($line =~ /(.*)\b((?:if|while|for|switch|(?:[a-z_]+|)for_each[a-z_]+)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
 			my $pre_ctx = "$1$2";
 
 			my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
@@ -2744,7 +2744,7 @@ sub process {
 		}
 
 # Check relative indent for conditionals and blocks.
-		if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+		if ($line =~ /\b(?:(?:if|while|for|(?:[a-z_]+|)for_each[a-z_]+)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
 			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
 				ctx_statement_block($linenr, $realcnt, 0)
 					if (!defined $stat);


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