linux-kernel - [PATCH 6/7] checkpatch: ensure we only apply checks to the lines within hunks

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Date:	Tue,  2 Sep 2008 18:25:13 +0100
From:	Andy Whitcroft <apw@...dowen.org>
To:	Andrew Morton <akpm@...l.org>
Cc:	Randy Dunlap <rdunlap@...otime.net>,
	Joel Schopp <jschopp@...tin.ibm.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Andy Whitcroft <apw@...dowen.org>
Subject: [PATCH 6/7] checkpatch: ensure we only apply checks to the lines within hunks

We should only apply source checks to lines within hunks.  Checks which are
anchored in the context may falsly trigger in the commentory.  Ensure they
only match within valid hunk lines.

Signed-off-by: Andy Whitcroft <apw@...dowen.org>
---
 scripts/checkpatch.pl |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2e513fd..fe4553c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1128,6 +1128,7 @@ sub process {
 		$linenr++;
 
 		my $rawline = $rawlines[$linenr - 1];
+		my $hunk_line = ($realcnt != 0);
 
 #extract the line range in the file after the patch is applied
 		if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
@@ -1238,8 +1239,8 @@ sub process {
 			ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
 		}
 
-#ignore lines being removed
-		if ($line=~/^-/) {next;}
+# ignore non-hunk lines and lines being removed
+		next if (!$hunk_line || $line =~ /^-/);
 
 #trailing whitespace
 		if ($line =~ /^\+.*\015/) {
-- 
1.6.0.rc1.258.g80295

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