linux-kernel - [PATCH] checkpatch: Expand parenthesis alignment test to declarations, functions and assignments

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Date:	Sat, 29 Mar 2014 13:14:45 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] checkpatch: Expand parenthesis alignment test to
 declarations, functions and assignments

Currently the parenthesis alignment test works only on
misalignments of if statements like

	if (foo(bar,
			baz)

Expand the test to find misalignments like:

static inline int foo(int bar,
			int baz)

and

	foo(bar,
			baz);

and

	foo = bar(baz,
			qux);

Expand the $Inline keyword for __inline and __inline__ too.
Add $Inline to $Declare so it also matches "static inline <foo>".

Signed-off-by: Joe Perches <joe@...ches.com>
---
 scripts/checkpatch.pl | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 889929d..1e63973 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -281,7 +281,7 @@ our $Attribute	= qr{
 			__weak
 		  }x;
 our $Modifier;
-our $Inline	= qr{inline|__always_inline|noinline};
+our $Inline	= qr{inline|__always_inline|noinline|__inline|__inline__};
 our $Member	= qr{->$Ident|\.$Ident|\[[^]]*\]};
 our $Lval	= qr{$Ident(?:$Member)*};
 
@@ -435,7 +435,7 @@ sub build_types {
 			(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*|\[\])+|(?:\s*\[\s*\])+)?
 			(?:\s+$Inline|\s+$Modifier)*
 		  }x;
-	$Declare	= qr{(?:$Storage\s+)?$Type};
+	$Declare	= qr{(?:$Storage\s+(?:$Inline\s+)?)?$Type};
 }
 build_types();
 
@@ -1613,7 +1613,7 @@ sub pos_last_openparen {
 		}
 	}
 
-	return $last_openparen + 1;
+	my $ts = length(expand_tabs(substr($line, 0, $last_openparen))) + 1;
 }
 
 sub process {
@@ -2200,7 +2200,7 @@ sub process {
 
 # check multi-line statement indentation matches previous line
 		if ($^V && $^V ge 5.10.0 &&
-		    $prevline =~ /^\+(\t*)(if \(|$Ident\().*(\&\&|\|\||,)\s*$/) {
+		    $prevline =~ /^\+([ \t]*)((?:$c90_Keywords(?:\s+if)\s*)|(?:$Declare\s*)?(?:$Ident|\(\s*\*\s*$Ident\s*\))\s*|$Ident\s*=\s*$Ident\s*)\(.*(\&\&|\|\||,)\s*$/) {
 			$prevline =~ /^\+(\t*)(.*)$/;
 			my $oldindent = $1;
 			my $rest = $2;


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