1 files changed, 14 insertions, 0 deletions

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)$/);