linux-kernel - [PATCH 5.4 061/165] kselftest: Support old perl versions

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Date:   Sat, 11 Jan 2020 10:49:40 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, SeongJae Park <sjpark@...zon.de>,
        Kees Cook <keescook@...omium.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 061/165] kselftest: Support old perl versions

From: SeongJae Park <sjpark@...zon.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@...zon.de>
Acked-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.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