[PATCH AUTOSEL 5.4 079/187] kselftest: Support old perl versions

Sasha Levin
2019-12-27T17:54:48Z

From: SeongJae Park <sjpark@amazon.de>

[ Upstream commit 4eac734486fd431e0756cc5e929f140911a36a53 ]

On an old perl such as v5.10.1, `kselftest/prefix.pl` gives below error
message:

Can't locate object method "autoflush" via package "IO::Handle" at kselftest/prefix.pl line 10.

This commit fixes the error by explicitly specifying the use of the
`IO::Handle` package.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/kselftest/prefix.pl | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kselftest/prefix.pl b/tools/testing/selftests/kselftest/prefix.pl
index ec7e48118183..31f7c2a0a8bd 100755
--- a/tools/testing/selftests/kselftest/prefix.pl
+++ b/tools/testing/selftests/kselftest/prefix.pl
@@ -3,6 +3,7 @@
# Prefix all lines with "# ", unbuffered. Command being piped in may need
# to have unbuffering forced with "stdbuf -i0 -o0 -e0 $cmd".
use strict;
+use IO::Handle;

binmode STDIN;
binmode STDOUT;
--
2.20.1