[PATCH] checkpatch: printks always need a KERN_<LEVEL>

From: Joe Perches
Date: Tue Oct 03 2017 - 12:10:41 EST


There was code in checkpatch that allowed continuation printks
to be used without KERN_CONT. Remove the continuation check
and always require a KERN_<LEVEL>.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
scripts/checkpatch.pl | 26 ++++----------------------
1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..fa6d76f1d58b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3829,28 +3829,10 @@ sub process {
"Prefer printk_ratelimited or pr_<level>_ratelimited to printk_ratelimit\n" . $herecurr);
}

-# printk should use KERN_* levels. Note that follow on printk's on the
-# same line do not need a level, so we use the current block context
-# to try and find and validate the current printk. In summary the current
-# printk includes all preceding printk's which have no newline on the end.
-# we assume the first bad printk is the one to report.
- if ($line =~ /\bprintk\((?!KERN_)\s*"/) {
- my $ok = 0;
- for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) {
- #print "CHECK<$lines[$ln - 1]\n";
- # we have a preceding printk if it ends
- # with "\n" ignore it, else it is to blame
- if ($lines[$ln - 1] =~ m{\bprintk\(}) {
- if ($rawlines[$ln - 1] !~ m{\\n"}) {
- $ok = 1;
- }
- last;
- }
- }
- if ($ok == 0) {
- WARN("PRINTK_WITHOUT_KERN_LEVEL",
- "printk() should include KERN_ facility level\n" . $herecurr);
- }
+# printk should use KERN_* levels
+ if ($line =~ /\bprintk\s*\(\s*(?!KERN_[A-Z]+\b)/) {
+ WARN("PRINTK_WITHOUT_KERN_LEVEL",
+ "printk() should include KERN_<LEVEL> facility level\n" . $herecurr);
}

if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) {
--
2.10.0.rc2.1.g053435c