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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483a31b3dd7sm285500355e9.2.2026.02.23.08.37.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Feb 2026 08:37:34 -0800 (PST) Date: Mon, 23 Feb 2026 16:37:33 +0000 From: David Laight To: Marcos Paulo de Souza Cc: Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence , Shuah Khan , live-patching@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] selftests: livepatch: functions.sh: Workaround heredoc on older bash Message-ID: <20260223163733.00e23e47@pumpkin> In-Reply-To: <20260220-lp-test-trace-v1-2-4b6703cd01a6@suse.com> References: <20260220-lp-test-trace-v1-0-4b6703cd01a6@suse.com> <20260220-lp-test-trace-v1-2-4b6703cd01a6@suse.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 20 Feb 2026 11:12:34 -0300 Marcos Paulo de Souza 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 > --- > 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() { >