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([181.229.23.179]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-139d90e95c6sm47507970c88.11.2026.06.27.19.42.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 27 Jun 2026 19:42:48 -0700 (PDT) From: =?UTF-8?q?Iv=C3=A1n=20Ezequiel=20Rodriguez?= To: zfigura@codeweavers.com Cc: wine-devel@winehq.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Iv=C3=A1n=20Ezequiel=20Rodriguez?= Subject: [PATCH 0/4] ntsync documentation, selftests, and owner validation Date: Sat, 27 Jun 2026 23:42:35 -0300 Message-ID: <20260628024239.152852-1-ivanrwcm25@gmail.com> X-Mailer: git-send-email 2.43.0 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: 8bit This series improves ntsync without changing wait/wake semantics: 1/4 — Align Documentation/userspace-api/ntsync.rst with include/uapi/linux/ntsync.h (ioctl macro names and struct layout). 2/4 — Fix wake_all selftest: CREATE_EVENT returns an fd, not zero. 3/4 — Add selftests for documented EINVAL cases (zero owner, non-zero pad, cross-instance object use). 4/4 — Reject wait ioctls when owner is zero, matching the documented uAPI (3/4 depends on 4/4 for the owner tests). Patch 4/4 closes a spec gap: Documentation/userspace-api/ntsync.rst requires EINVAL when wait owner is zero, but setup_wait() only validated pad and flags. Unlock/kill mutex ioctls already reject owner == 0. Testing: - scripts/checkpatch.pl --strict --no-tree: clean (4/4 patches) - make headers && make -C tools/testing/selftests TARGETS=drivers/ntsync - Kernel 7.1.0-ntsync-test+ (CONFIG_NTSYNC=y), QEMU x86_64 initramfs: tools/testing/selftests/drivers/ntsync/ntsync — 12/12 PASS, including wake_all and wait_args_validation - On 6.17.0-35-generic with the distro ntsync.ko (without patch 4/4): wait_args_validation fails on owner==0 (wait proceeds instead of EINVAL), confirming the gap this series fixes Elizabeth Figura wine-devel@winehq.org --- Documentation/userspace-api/ntsync.rst | 22 +++++----- tools/testing/selftests/drivers/ntsync/ntsync.c | 45 ++++++++++++++++++++ drivers/misc/ntsync.c | 3 ++ 3 files changed, 59 insertions(+), 11 deletions(-) Iván Ezequiel Rodriguez (4): docs: ntsync: align uAPI ioctl names and struct layout with ntsync.h selftests: ntsync: fix wake_all CREATE_EVENT fd expectation selftests: ntsync: add wait argument validation tests ntsync: reject wait ioctls with zero owner -- 2.43.0