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Mon, 04 May 2026 11:35:14 -0700 (PDT) From: Marcos Paulo de Souza Date: Mon, 04 May 2026 15:34:44 -0300 Subject: [PATCH v5 3/6] selftests: livepatch: Introduce does_sysfs_exist function 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="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260504-lp-tests-old-fixes-v5-3-0be26d94ab9a@suse.com> References: <20260504-lp-tests-old-fixes-v5-0-0be26d94ab9a@suse.com> In-Reply-To: <20260504-lp-tests-old-fixes-v5-0-0be26d94ab9a@suse.com> To: Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence , Shuah Khan Cc: live-patching@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Marcos Paulo de Souza , marcos@mpdesouza.com X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1777919697; l=1087; i=mpdesouza@suse.com; s=20231031; h=from:subject:message-id; bh=zwVAcfIrB5gkKSQrtegRJbhzNles6rOGTmiKmx6GRWQ=; b=xEIWz0+yEclXAyLG6pKQNfJzvV5laNiryR+3nDpFPz3Hkej5nUD5QebhOsozzUiaV2yImPQaH T2/YF6b0iK7AH7VTr1yYJ3lUpYUvXehnHIm4+XwXRPlvqORNmFVNucP X-Developer-Key: i=mpdesouza@suse.com; a=ed25519; pk=/Ni/TsKkr69EOmdZXkp1Q/BlzDonbOBRsfPa18ySIwU= Returns true if the livepatch sysfs attribute exists, and false otherwise. This new function will be used in the next patches. Signed-off-by: Marcos Paulo de Souza --- tools/testing/selftests/livepatch/functions.sh | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh index 8ec0cb64ad94..2bc50271729c 100644 --- a/tools/testing/selftests/livepatch/functions.sh +++ b/tools/testing/selftests/livepatch/functions.sh @@ -339,6 +339,16 @@ function check_result { fi } +# does_sysfs_exist(modname, attr) - check sysfs attribute existence +# modname - livepatch module creating the sysfs interface +# attr - attribute name to be checked +function does_sysfs_exist() { + local mod="$1"; shift + local attr="$1"; shift + + [[ -f "$SYSFS_KLP_DIR/$mod/$attr" ]] +} + # check_sysfs_rights(modname, rel_path, expected_rights) - check sysfs # path permissions # modname - livepatch module creating the sysfs interface -- 2.54.0