From c68e58783f20d3eb32b99e1962b26462f2e3195a Mon Sep 17 00:00:00 2001
From: Arnaud Lacombe <lacombar@gmail.com>
Date: Mon, 15 Aug 2011 01:07:14 -0400
Subject: [PATCH] script/checkpatch.pl: warn about deprecated use of
EXTRA_{A,C,CPP,LD}FLAGS
Usage of these flags has been deprecated for nearly 4 years by:
commit f77bf01425b11947eeb3b5b54685212c302741b8
Author: Sam Ravnborg <sam@neptun.(none)>
Date: Mon Oct 15 22:25:06 2007 +0200
kbuild: introduce ccflags-y, asflags-y and ldflags-y
Moreover, these flags (at least EXTRA_CFLAGS) have been documented for command
line use. By default, gmake(1) do not override command line setting, so this is
likely to result in build failure or unexpected behavior.
Warn about their introduction in Makefile or Kbuild files.
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
scripts/checkpatch.pl | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9d761c95eca2..955183ada37a 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1661,6 +1661,20 @@ sub process {
#print "is_end<$is_end> length<$length>\n";
}
+ if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
+ ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) {
+ my $flag = $1;
+ my $replacement = {
+ 'EXTRA_AFLAGS' => 'asflags-y',
+ 'EXTRA_CFLAGS' => 'ccflags-y',
+ 'EXTRA_CPPFLAGS' => 'cppflags-y',
+ 'EXTRA_LDFLAGS' => 'ldflags-y',
+ };
+
+ WARN("DEPRECATED_VARIABLE",
+ "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
+ }
+
# check we are in a valid source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
--
2.34.1