From c68e58783f20d3eb32b99e1962b26462f2e3195a Mon Sep 17 00:00:00 2001 From: Arnaud Lacombe 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 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 Cc: Andy Whitcroft Signed-off-by: Arnaud Lacombe Signed-off-by: Michal Marek --- 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