linux-kernel - [for-next][PATCH 4/8] ktest.pl: Add a NOT operator

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Date:   Wed, 01 Jul 2020 19:17:21 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     "John Warthog9 Hawley" <warthog9@...nel.org>
Subject: [for-next][PATCH 4/8] ktest.pl: Add a NOT operator

From: "Steven Rostedt (VMware)" <rostedt@...dmis.org>

There is a NOT DEFINED operator, but there is not an operator that can
negate any other expression.

 For example: NOT (${FOO} == boot || ${BAR} == run)

Add the keyword NOT to allow the ktest.pl config files to negate operators.

Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
---
 tools/testing/ktest/ktest.pl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index f99cf633ed84..0d04b8a2b5a2 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -911,6 +911,12 @@ sub process_expression {
 	}
     }
 
+    if ($val =~ s/^\s*NOT\s+(.*)//) {
+	my $express = $1;
+	my $ret = process_expression($name, $express);
+	return !$ret;
+    }
+
     if ($val =~ /^\s*0\s*$/) {
 	return 0;
     } elsif ($val =~ /^\s*\d+\s*$/) {
-- 
2.26.2