diff options
Diffstat (limited to 'tools/testing/ktest')
| -rwxr-xr-x | tools/testing/ktest/ktest.pl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index b7a1c8c617e0..b8fcdabffffe 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -910,6 +910,14 @@ sub set_variable { if (defined($command_tmp_vars{$lvalue})) { return; } + + # If a variable is undefined, treat an unescaped self-reference as empty. + if (!defined($variable{$lvalue})) { + $rvalue =~ s/(?<!\\)\$\{\Q$lvalue\E\}//g; + $rvalue =~ s/^\s+//; + $rvalue =~ s/\s+$//; + } + if ($rvalue =~ /^\s*$/) { delete $variable{$lvalue}; } else { |