linux-kernel - [PATCH 10/17] checkpatch: reduce warnings for #include of asm/foo.h to check from arch/bar.c

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Date:	Mon, 11 Aug 2008 21:13:05 +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 10/17] checkpatch: reduce warnings for #include of asm/foo.h to check from arch/bar.c

It is much more likely that an architecture file will want to directly
include asm header files.  Reduce this WARNING to a CHECK when the referencing
file is in the arch directory.

Signed-off-by: Andy Whitcroft <apw@...dowen.org>
---
 scripts/checkpatch.pl |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 0e5af8e..9e7e9d1 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1942,12 +1942,17 @@ sub process {
 
 #warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
 		if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
-			my $checkfile = "include/linux/$1.h";
-			if (-f "$root/$checkfile" && $realfile ne $checkfile &&
+			my $file = "$1.h";
+			my $checkfile = "include/linux/$file";
+			if (-f "$root/$checkfile" &&
+			    $realfile ne $checkfile &&
 			    $1 ne 'irq')
 			{
-				WARN("Use #include <linux/$1.h> instead of <asm/$1.h>\n" .
-					$herecurr);
+				if ($realfile =~ m{^arch/}) {
+					CHK("Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+				} else {
+					WARN("Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
+				}
 			}
 		}
 
-- 
1.6.0.rc1.258.g80295

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