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    Subject[PATCH 5.4 061/165] kselftest: Support old perl versions
    Date
    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


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