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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>
This commit is contained in:
Kees Cook 2012-12-17 16:01:48 -08:00 committed by Linus Torvalds
parent 5023d3472d
commit 1ba8dfd17e
1 changed files with 13 additions and 0 deletions
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13
scripts/checkpatch.pl
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@ -1757,6 +1757,13 @@ sub process {
#print "is_start<$is_start> is_end<$is_end> length<$length>\n"; #print "is_start<$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.*/ || $realfile =~ /Kbuild.*/) && if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) { ($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) {
my $flag = $1; my $flag = $1;
@ -1912,6 +1919,12 @@ sub process {
# check we are in a valid C source file if not then ignore this hunk # check we are in a valid C source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c)$/); next if ($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 # check for RCS/CVS revision markers
if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) { if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
WARN("CVS_KEYWORD", WARN("CVS_KEYWORD",