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Mon, 13 Apr 2026 10:26:20 -0700 (PDT) Received: from [127.0.0.1] ([2804:1bc4:224:7800:585c:db3a:fcb:e21f]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488d5734a94sm298657835e9.0.2026.04.13.10.26.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Apr 2026 10:26:20 -0700 (PDT) From: Marcos Paulo de Souza Subject: [PATCH v2 0/6] kselftests: livepatch: Adapt tests to be executed on 4.12 kernels Date: Mon, 13 Apr 2026 14:26:11 -0300 Message-Id: <20260413-lp-tests-old-fixes-v2-0-367c7cb5006f@suse.com> Precedence: bulk X-Mailing-List: live-patching@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIADMn3WkC/22Nyw6CMBBFf4XM2jF9BBBX/IdhAWWQGqSkU4iG8 O8WdOny5D7OCkzeEsM1WcHTYtm6MYI6JWD6erwT2jYyKKEyoUWBw4SBODC6ocXOvoixK9K0bsy FjMohDidPRxB3t+rLPDcPMmF/2hu95eD8+7Aucu/9BFL/EywSBeayNlnbNVqluuSZ6WzcE6pt2 z598ED7xQAAAA== X-Change-ID: 20260309-lp-tests-old-fixes-f955abc8ec27 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=2546; i=mpdesouza@suse.com; s=20231031; h=from:subject:message-id; bh=tlNFGMK5G8ttgy6AVZeZhapjuaMcl29X2npFsloWIt4=; b=dgMIwWOoPPxnVBD33RIsUE57uohRERIxr3/vmU7Ina+6wliM2wP5bwsHPuHZgMb/PzJitEex/ K8M+fOMmz3NCu/I5zzbXUWuIA+SP+l1vUhvf+Kq98mnnRZeekTdzI9U X-Developer-Key: i=mpdesouza@suse.com; a=ed25519; pk=/Ni/TsKkr69EOmdZXkp1Q/BlzDonbOBRsfPa18ySIwU= A new version of the patchset, with fewer patches now. Please take a look! Original cover-letter: These patches don't really change how the patches are run, just skip some tests on kernels that don't support a feature (like kprobe and livepatched living together) or when a livepatch sysfs attribute is missing. The last patch slightly adjusts check_result function to skip dmesg messages on SLE kernels when a livepatch is removed. These patches are based on printk/for-next branch. Please review! Thanks! Signed-off-by: Marcos Paulo de Souza --- Changes in v2: - Patch descriptions were changed to remove "test-X", since it was polluting the commit subjects (Miroslav Benes) - Patch 8 was dropped since it was checking for a message from an out-of-tree patch. (Petr Mladek) - Patch 3 was dropped as should be treated as expected failure for older kernels. (Petr Mladek) - Patch 2 was changed to use y/n instead of 1/0, since it's more natural to use it. - Patch 1 was changed to handle ppc and loongson, and error out if dealing with a different architecture that sets CONFIG_ARCH_HAS_SYSCALL_WRAPPER and haven't changed the test to include the proper wrapper prefix. - Patch 4 was changed to invert the return of the bash function to return 1 in failure, like a normal bash function (Joe Lawrence) - Patches 5, 6 an 7 were changed to not split the tests, but to only run the tests when the attribute were present (Miroslav Benes) - Link to v1: https://patch.msgid.link/20260313-lp-tests-old-fixes-v1-0-71ac6dfb3253@suse.com --- Marcos Paulo de Souza (6): selftests: livepatch: Check for ARCH_HAS_SYSCALL_WRAPPER config selftests: livepatch: Replace true/false module parameter by y/n selftests: livepatch: Introduce does_sysfs_exists function selftests: livepatch: Check if patched sysfs attribute exists selftests: livepatch: Check if replace sysfs attribute exists selftests: livepatch: Check if stack_order sysfs attribute exists tools/testing/selftests/livepatch/functions.sh | 10 ++ tools/testing/selftests/livepatch/test-kprobe.sh | 8 +- tools/testing/selftests/livepatch/test-sysfs.sh | 120 ++++++++++++--------- .../livepatch/test_modules/test_klp_syscall.c | 17 ++- 4 files changed, 99 insertions(+), 56 deletions(-) --- base-commit: 712c0756828becbfc629ff8d8b82deff5d1115e4 change-id: 20260309-lp-tests-old-fixes-f955abc8ec27 Best regards, -- Marcos Paulo de Souza