checkpatch: fix UNNECESSARY_KERN_LEVEL false positive

KERN_<LEVEL> is never redundant with printk_ratelimited or printk_once.
(Except perhaps in the sense that you could use e.g.  pr_err_ratelimited
or pr_err_once, but that would apply to printk as well).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Whitcroft <apw@canonical.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 221a2b245690..f130c93a5656 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4547,7 +4547,7 @@ sub process {
                 }
 
 # check for logging functions with KERN_<LEVEL>
-                if ($line !~ /printk\s*\(/ &&
+                if ($line !~ /printk(?:_ratelimited|_once)?\s*\(/ &&
                     $line =~ /\b$logFunctions\s*\(.*\b(KERN_[A-Z]+)\b/) {
                         my $level = $1;
                         if (WARN("UNNECESSARY_KERN_LEVEL",