linux-kernel - [PATCH 3/4] checkpatch: Add --fix option for a couple OPEN

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Message-Id: <6af268570f1c0c929126a06164c983230c71754b.1405018255.git.joe@perches.com>
Date:	Thu, 10 Jul 2014 11:53:40 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] checkpatch: Add --fix option for a couple OPEN_BRACE misuses

Style misuses of these types are corrected:

typedef struct foo
{
	int bar;
};

int foo(int bar) { return bar+1;
}

int foo(int bar) {
	return bar+1;
}

Signed-off-by: Joe Perches <joe@...ches.com>
---
 scripts/checkpatch.pl | 33 ++++++++++++++++++++++++++++-----
 1 file changed, 28 insertions(+), 5 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 569ba31..1e95953 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3164,17 +3164,40 @@ sub process {
 
 # function brace can't be on same line, except for #defines of do while,
 # or if closed on same line
-		if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and
+		if (($line=~/$Type\s*$Ident\(.*\).*\s*{/) and
 		    !($line=~/\#\s*define.*do\s{/) and !($line=~/}/)) {
-			ERROR("OPEN_BRACE",
-			      "open brace '{' following function declarations go on the next line\n" . $herecurr);
+			if (ERROR("OPEN_BRACE",
+				  "open brace '{' following function declarations go on the next line\n" . $herecurr) &&
+			    $fix) {
+				fix_delete_line($fixlinenr, $rawline);
+				my $fixed_line = $rawline;
+				$fixed_line =~ /(^..*$Type\s*$Ident\(.*\)\s*){(.*)$/;
+				my $line1 = $1;
+				my $line2 = $2;
+				fix_insert_line($fixlinenr, ltrim($line1));
+				fix_insert_line($fixlinenr, "\+{");
+				if ($line2 !~ /^\s*$/) {
+					fix_insert_line($fixlinenr, "\+\t" . trim($line2));
+				}
+			}
 		}
 
 # open braces for enum, union and struct go on the same line.
 		if ($line =~ /^.\s*{/ &&
 		    $prevline =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?\s*$/) {
-			ERROR("OPEN_BRACE",
-			      "open brace '{' following $1 go on the same line\n" . $hereprev);
+			if (ERROR("OPEN_BRACE",
+				  "open brace '{' following $1 go on the same line\n" . $hereprev) &&
+			    $fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
+				fix_delete_line($fixlinenr - 1, $prevrawline);
+				fix_delete_line($fixlinenr, $rawline);
+				my $fixedline = rtrim($prevrawline) . " {";
+				fix_insert_line($fixlinenr, $fixedline);
+				$fixedline = $rawline;
+				$fixedline =~ s/^(.\s*){\s*/$1\t/;
+				if ($fixedline !~ /^\+\s*$/) {
+					fix_insert_line($fixlinenr, $fixedline);
+				}
+			}
 		}
 
 # missing space after union, struct or enum definition
-- 
1.8.1.2.459.gbcd45b4.dirty

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