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Date: Tue, 18 Dec 2007 06:46:41 +0100
From: Borislav Petkov <bbpetkov@yahoo.de>
To: apw@shadowen.org, rdunlap@xenotime.net, jschopp@austin.ibm.com,
       linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] scripts/checkpatch.pl: add a check for the patch level
	(patch -p<num>)
Message-ID: <20071218054641.GA15994@gollum.tnic>
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References: <20071217071105.GA10869@gollum.tnic>
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On Mon, Dec 17, 2007 at 08:11:05AM +0100, Borislav Petkov wrote:

A slightly microoptimized version 1.1:

---
From: Borislav Petkov <bbpetkov@yahoo.de>


Check the patch level of the single hunks in a patch file, however only when
checkpatch.pl is called from within the kernel tree.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
--

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 579f50f..3eda27b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -653,6 +653,18 @@ sub CHK {
 	}
 }
 
+sub check_patchlevel {
+
+	if ($tree) {
+		my ($path) = @_;
+		$path =~ s![^/]*/!!;
+
+		if (!stat($path)) {
+			WARN("Check the patchlevel (hint: patch option -p)");
+		}
+	}
+}
+
 sub process {
 	my $filename = shift;
 	my @lines = @_;
@@ -713,10 +725,16 @@ sub process {
 #extract the filename as it passes
 		if ($line=~/^\+\+\+\s+(\S+)/) {
 			$realfile=$1;
+
+			if ($realfile) {
+				check_patchlevel($realfile);
+			}
+
 			$realfile =~ s@^[^/]*/@@;
 			$in_comment = 0;
 			next;
 		}
+
 #extract the line range in the file after the patch is applied
 		if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
 			$is_patch = 1;
-- 
Regards/Gru?,
    Boris.
--
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