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Mon, 13 Apr 2026 10:26:30 -0700 (PDT) From: Marcos Paulo de Souza Date: Mon, 13 Apr 2026 14:26:14 -0300 Subject: [PATCH v2 3/6] selftests: livepatch: Introduce does_sysfs_exists 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: <20260413-lp-tests-old-fixes-v2-3-367c7cb5006f@suse.com> References: <20260413-lp-tests-old-fixes-v2-0-367c7cb5006f@suse.com> In-Reply-To: <20260413-lp-tests-old-fixes-v2-0-367c7cb5006f@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 X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1776101176; l=1081; i=mpdesouza@suse.com; s=20231031; h=from:subject:message-id; bh=m8oJEkUhz0J3w0JnIvC2DIbk+EyHDWrxfKUyFDm6LMU=; b=E93oe1YNo+RSYupe5HX5Y5o4BZx0ByITywWIL0YtM5glH0NYRv3YYBExa+tGYCGnkgWIAUF/M kQwUY0KIZg3Bm1wyJkF46y7IN2sfWAMjLZ5bdxX85rgQ8Chnwy1dxX5 X-Developer-Key: i=mpdesouza@suse.com; a=ed25519; pk=/Ni/TsKkr69EOmdZXkp1Q/BlzDonbOBRsfPa18ySIwU= Return 1 if the livepatch sysfs attribute exists, and 0 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..382596eaaf01 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_exists(modname, attr) - check sysfs attribute existence +# modname - livepatch module creating the sysfs interface +# attr - attribute name to be checked +function does_sysfs_exists() { + 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 -- 2.52.0