Re: [PATCH 2/2] selftests: livepatch: functions.sh: Workaround heredoc on older bash

[David Laight <david.laight.linux@gmail.com>]

On Fri, 20 Feb 2026 11:12:34 -0300
Marcos Paulo de Souza <mpdesouza@suse.com> wrote:

> When running current selftests on older distributions like SLE12-SP5 that
> contains an older bash trips over heredoc. Convert it to plain echo
> calls, which ends up with the same result.
> 
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
> ---
>  tools/testing/selftests/livepatch/functions.sh | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh
> index 8ec0cb64ad94..45ed04c6296e 100644
> --- a/tools/testing/selftests/livepatch/functions.sh
> +++ b/tools/testing/selftests/livepatch/functions.sh
> @@ -96,10 +96,8 @@ function pop_config() {
>  }
>  
>  function set_dynamic_debug() {
> -        cat <<-EOF > "$SYSFS_DEBUG_DIR/dynamic_debug/control"
> -		file kernel/livepatch/* +p
> -		func klp_try_switch_task -p
> -		EOF
> +	echo "file kernel/livepatch/* +p" > "$SYSFS_DEBUG_DIR/dynamic_debug/control"
> +	echo "func klp_try_switch_task -p" > "$SYSFS_DEBUG_DIR/dynamic_debug/control"

Use printf so you can write both lines in one command.

	David

>  }
>  
>  function set_ftrace_enabled() {
>