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authorKees Cook <keescook@chromium.org>2012-12-17 16:01:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-17 17:15:18 -0800
commit1ba8dfd17ead04de18bfca7b68c2a144c8be736a (patch)
treed9f42871b6809cd40e03557bc243a11d6039dd20 /scripts/checkpatch.pl
parent5023d3472d444747bfa12e9798d7993e7efb8287 (diff)
downloadlinux-linaro-stable-1ba8dfd17ead04de18bfca7b68c2a144c8be736a.tar.gz
checkpatch: warn about using CONFIG_EXPERIMENTAL
This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, it is being removed. This will discourage future addition of CONFIG_EXPERIMENTAL while it is being phased out. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andy Whitcroft <apw@canonical.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/checkpatch.pl')
-rwxr-xr-xscripts/checkpatch.pl13
1 files changed, 13 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d4f61a6fed5d..cd251d5f3f1a 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1757,6 +1757,13 @@ sub process {
#print "is_start<$is_start> is_end<$is_end> length<$length>\n";
}
+# discourage the addition of CONFIG_EXPERIMENTAL in Kconfig.
+ if ($realfile =~ /Kconfig/ &&
+ $line =~ /.\s*depends on\s+.*\bEXPERIMENTAL\b/) {
+ WARN("CONFIG_EXPERIMENTAL",
+ "Use of CONFIG_EXPERIMENTAL is deprecated. For alternatives, see https://lkml.org/lkml/2012/10/23/580\n");
+ }
+
if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) {
my $flag = $1;
@@ -1912,6 +1919,12 @@ sub process {
# check we are in a valid C source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c)$/);
+# discourage the addition of CONFIG_EXPERIMENTAL in #if(def).
+ if ($line =~ /^\+\s*\#\s*if.*\bCONFIG_EXPERIMENTAL\b/) {
+ WARN("CONFIG_EXPERIMENTAL",
+ "Use of CONFIG_EXPERIMENTAL is deprecated. For alternatives, see https://lkml.org/lkml/2012/10/23/580\n");
+ }
+
# check for RCS/CVS revision markers
if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
WARN("CVS_KEYWORD",