update checkpatch.pl to version 0.18
This version brings a few fixes for the extern checks, and a couple of
new checks.
Of note:
- false is now recognised as a 0 assignment in static/external
assignments,
- printf format strings including %L are reported,
- a number of fixes for the extern in .c file detector which had
temporarily lost its ability to detect variables; undetected due to
the loss of its test.
Andy Whitcroft (8):
Version: 0.18
false should trip 0 assignment checks
tests: reinstate missing tests
tests: allow specification of the file extension for a test
fix extern checks for variables
check for and report %Lu, %Ld, and %Li
ensure we only start a statement on lines with some content
extern spacing
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index fd21b5e..b6bbbcd 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -9,7 +9,7 @@
my $P = $0;
$P =~ s@.*/@@g;
-my $V = '0.17';
+my $V = '0.18';
use Getopt::Long qw(:config no_auto_abbrev);
@@ -1144,7 +1144,7 @@
# Check for potential 'bare' types
my ($stat, $cond);
- if ($realcnt) {
+ if ($realcnt && $line =~ /.\s*\S/) {
($stat, $cond) = ctx_statement_block($linenr,
$realcnt, 0);
$stat =~ s/\n./\n /g;
@@ -1316,12 +1316,12 @@
}
# check for external initialisers.
- if ($line =~ /^.$Type\s*$Ident\s*=\s*(0|NULL);/) {
+ if ($line =~ /^.$Type\s*$Ident\s*=\s*(0|NULL|false)\s*;/) {
ERROR("do not initialise externals to 0 or NULL\n" .
$herecurr);
}
# check for static initialisers.
- if ($line =~ /\s*static\s.*=\s*(0|NULL);/) {
+ if ($line =~ /\s*static\s.*=\s*(0|NULL|false)\s*;/) {
ERROR("do not initialise statics to 0 or NULL\n" .
$herecurr);
}
@@ -1973,7 +1973,7 @@
# check for new externs in .c files.
if ($realfile =~ /\.c$/ && defined $stat &&
- $stat =~ /^.(?:extern\s+)?$Type\s+$Ident(\s*)\(/s)
+ $stat =~ /^.\s*(?:extern\s+)?$Type\s+$Ident(\s*)\(/s)
{
my $paren_space = $1;
@@ -1988,6 +1988,11 @@
if ($paren_space =~ /\n/) {
WARN("arguments for function declarations should follow identifier\n" . $herecurr);
}
+
+ } elsif ($realfile =~ /\.c$/ && defined $stat &&
+ $stat =~ /^.\s*extern\s+/)
+ {
+ WARN("externs should be avoided in .c files\n" . $herecurr);
}
# checks for new __setup's
@@ -2033,6 +2038,16 @@
{
WARN("usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
}
+
+# check for %L{u,d,i} in strings
+ my $string;
+ while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
+ $string = substr($rawline, $-[1], $+[1] - $-[1]);
+ if ($string =~ /(?<!%)%L[udi]/) {
+ WARN("\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
+ last;
+ }
+ }
}
# If we have no input at all, then there is nothing to report on