checkpatch: exclude drivers/staging from if with unnecessary parentheses test

Greg KH doesn't like this test so exclude the staging directory from the
implied --strict only test unless --strict is actually used on the
command-line.

Link: http://lkml.kernel.org/r/1515704034.9619.165.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
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 d246405..3a7499d 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4526,7 +4526,9 @@ sub process {
                }
 
 # check for unnecessary parentheses around comparisons in if uses
-               if ($^V && $^V ge 5.10.0 && defined($stat) &&
+# when !drivers/staging or command-line uses --strict
+               if (($realfile !~ m@^(?:drivers/staging/)@ || $check_orig) &&
+                   $^V && $^V ge 5.10.0 && defined($stat) &&
                    $stat =~ /(^.\s*if\s*($balanced_parens))/) {
                        my $if_stat = $1;
                        my $test = substr($2, 1, -1);