linux-kernel - [PATCH 1/4] checkpatch: Add test for blank lines after function/struct/union/enum

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Message-Id: <1ff1bd5d51b309aa44c4cdc1f9ab253791e4818f.1403541113.git.joe@perches.com>
Date:	Mon, 23 Jun 2014 09:35:52 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Jean Delvare <jdelvare@...e.de>,
	Andy Whitcroft <apw@...onical.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] checkpatch: Add test for blank lines after function/struct/union/enum

Add a --strict test asking for a blank line after
function/struct/union/enum declarations.

Allow exceptions for several attributes and macro uses.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 scripts/checkpatch.pl | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 538105a..4bb4218 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2291,6 +2291,21 @@ sub process {
 			     "networking block comments put the trailing */ on a separate line\n" . $herecurr);
 		}
 
+# check for missing blank lines after struct/union declarations
+# with exceptions for various attributes and macros
+		if ($prevline =~ /^[\+ ]};?\s*$/ &&
+		    !($line =~ /^\+\s*$/ ||
+		      $line =~ /^\+\s*EXPORT_SYMBOL/ ||
+		      $line =~ /^\+\s*MODULE_/i ||
+		      $line =~ /^\+\s*\#\s*(?:end|elif|else)/ ||
+		      $line =~ /^\+[a-z_]*init/ ||
+		      $line =~ /^\+\s*(?:static\s+)?[A-Z_]*ATTR/ ||
+		      $line =~ /^\+\s*DECLARE/ ||
+		      $line =~ /^\+\s*__setup/)) {
+			CHK("LINE_SPACING",
+			    "Please use a blank line after function/struct/union/enum declarations\n" . $hereprev);
+		}
+
 # check for missing blank lines after declarations
 		if ($sline =~ /^\+\s+\S/ &&			#Not at char 1
 			# actual declarations
-- 
1.8.1.2.459.gbcd45b4.dirty

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