linux-kernel - [PATCH] checkpatch: Add ability to --fix unnecessary blank lines around braces

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Date:	Wed, 28 Jan 2015 23:27:35 -0800
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] checkpatch: Add ability to --fix unnecessary blank lines
 around braces

There's a --strict test for these blank lines.

Add the ability to automatically remove them with --fix.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 scripts/checkpatch.pl | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6705576..059c032 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4461,12 +4461,18 @@ sub process {
 
 # check for unnecessary blank lines around braces
 		if (($line =~ /^.\s*}\s*$/ && $prevrawline =~ /^.\s*$/)) {
-			CHK("BRACES",
-			    "Blank lines aren't necessary before a close brace '}'\n" . $hereprev);
+			if (CHK("BRACES",
+				"Blank lines aren't necessary before a close brace '}'\n" . $hereprev) &&
+			    $fix && $prevrawline =~ /^\+/) {
+				fix_delete_line($fixlinenr - 1, $prevrawline);
+			}
 		}
 		if (($rawline =~ /^.\s*$/ && $prevline =~ /^..*{\s*$/)) {
-			CHK("BRACES",
-			    "Blank lines aren't necessary after an open brace '{'\n" . $hereprev);
+			if (CHK("BRACES",
+				"Blank lines aren't necessary after an open brace '{'\n" . $hereprev) &&
+			    $fix) {
+				fix_delete_line($fixlinenr, $rawline);
+			}
 		}
 
 # no volatiles please



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