From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8EA2E313529; Fri, 13 Feb 2026 09:24:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770974647; cv=none; b=uzE1/OLcW9hgFVzkZgNYBNj+w8ypDQisLTXaP+5Vbkpsa+4woqiuJyRwqK3OwrTwLztlJVl91kyGyW6ETfHPaD/b8wT59mwN/D5eOA7Sdd1CNSXq0p2sI+MoEITdjF7PDMdbuRQp6+C82mOsfkJeKus5ohYx4x23aAwqXl+Age4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770974647; c=relaxed/simple; bh=HokvFizIW7Zwfvzx1UHlGYR1GRohwiP4iYCT85S00Dw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mUur+WHLn+UVNaaQZD2h5VUPS6gva85Kt1nDrnupt86LUytpzZQVzQl4julxedm+GLx/gZS5GZmrLNOUWvlU3ZLPPNgl2xTppp/FoOJu8mHJ2EYNUfGjEZujxTC66pM8Kol0+amiGQNM0bSDTBVUwXYK6S1yG8hkhkdZlSOCg/s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oHpLeFQF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="oHpLeFQF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C760C116C6; Fri, 13 Feb 2026 09:24:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770974647; bh=HokvFizIW7Zwfvzx1UHlGYR1GRohwiP4iYCT85S00Dw=; h=From:To:Cc:Subject:Date:From; b=oHpLeFQFC6BhM+5AdgnFsslsy8+M1H+hy4JPLVmAoLKMixVOsq5nl0ZLAlkE4d1y7 iKU3hOqFclodsOoC0pWiA093wkqBtdIKRGw1CdYx9OSN4AhL5z7pVvyi1T2LUgs9Re yw4u/RaeznK9aTkRcATFpHrliyix8QMG8nHU0zKjzeQcTo4O6U4nzV5fDwKr0u4sYU l/Kn1Cgqg3/7OzoN0KsK6vOZGPVb84edV/Si3h2aeT5xUFZGcsq1qGUMo8qvKTeyIz 0KzSUtCRy1tLMk2ecg08KS5CAvsg9flQr7LBHATEG8AmNccCdqRbH6XOwMLLlqeHHJ infHz6GiUalww== From: Tzung-Bi Shih To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich Cc: Jonathan Corbet , Shuah Khan , Laurent Pinchart , Bartosz Golaszewski , Wolfram Sang , Jason Gunthorpe , Johan Hovold , "Paul E . McKenney" , Dan Williams , Linus Walleij , chrome-platform@lists.linux.dev, tzungbi@kernel.org, driver-core@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH v8 0/3] drivers/base: Introduce revocable Date: Fri, 13 Feb 2026 09:23:04 +0000 Message-ID: <20260213092307.858908-1-tzungbi@kernel.org> X-Mailer: git-send-email 2.53.0.310.g728cabbaf7-goog Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The series is separated from [1] to show the independency and compare potential use cases easier. This is the revocable core part. Use cases are in other series. The 1st patch introduces the revocable which is an implementation of ideas from the talk [2]. The 2nd and 3rd patches add test cases for revocable in KUnit and selftest. [1] https://lore.kernel.org/all/20251016054204.1523139-1-tzungbi@kernel.org [2] https://lpc.events/event/17/contributions/1627/ --- v8: - Rework on the revocable APIs. See changelog in [PATCH v8 1/3] for details. v7: https://lore.kernel.org/all/20260116080235.350305-1-tzungbi@kernel.org - Rebase onto next-20260115. v6: https://lore.kernel.org/chrome-platform/20251106152330.11733-1-tzungbi@kernel.org - Rebase onto next-20251106. - Separate revocable core and use cases. v5: https://lore.kernel.org/chrome-platform/20251016054204.1523139-1-tzungbi@kernel.org - Rebase onto next-20251015. - Add more context about the PoC. - Support multiple revocable providers in the PoC. v4: https://lore.kernel.org/chrome-platform/20250923075302.591026-1-tzungbi@kernel.org - Rebase onto next-20250922. - Remove the 5th patch from v3. - Add fops replacement PoC in 5th - 7th patches. v3: https://lore.kernel.org/chrome-platform/20250912081718.3827390-1-tzungbi@kernel.org - Rebase onto https://lore.kernel.org/chrome-platform/20250828083601.856083-1-tzungbi@kernel.org and next-20250912. - The 4th patch changed accordingly. v2: https://lore.kernel.org/chrome-platform/20250820081645.847919-1-tzungbi@kernel.org - Rename "ref_proxy" -> "revocable". - Add test cases in Kunit and selftest. v1: https://lore.kernel.org/chrome-platform/20250814091020.1302888-1-tzungbi@kernel.org Tzung-Bi Shih (3): revocable: Revocable resource management revocable: Add KUnit test cases selftests: revocable: Add kselftest cases .../driver-api/driver-model/index.rst | 1 + .../driver-api/driver-model/revocable.rst | 256 +++++++++++ MAINTAINERS | 11 + drivers/base/Kconfig | 5 + drivers/base/Makefile | 5 +- drivers/base/revocable.c | 228 ++++++++++ drivers/base/revocable_test.c | 410 ++++++++++++++++++ include/linux/revocable.h | 194 +++++++++ tools/testing/selftests/revocable/Makefile | 7 + .../selftests/revocable/revocable_test.c | 177 ++++++++ .../selftests/revocable/revocable_test.h | 20 + .../selftests/revocable/test-revocable.sh | 34 ++ .../selftests/revocable/test_modules/Makefile | 10 + .../revocable/test_modules/revocable_test.c | 234 ++++++++++ 14 files changed, 1591 insertions(+), 1 deletion(-) create mode 100644 Documentation/driver-api/driver-model/revocable.rst create mode 100644 drivers/base/revocable.c create mode 100644 drivers/base/revocable_test.c create mode 100644 include/linux/revocable.h create mode 100644 tools/testing/selftests/revocable/Makefile create mode 100644 tools/testing/selftests/revocable/revocable_test.c create mode 100644 tools/testing/selftests/revocable/revocable_test.h create mode 100755 tools/testing/selftests/revocable/test-revocable.sh create mode 100644 tools/testing/selftests/revocable/test_modules/Makefile create mode 100644 tools/testing/selftests/revocable/test_modules/revocable_test.c -- 2.53.0.310.g728cabbaf7-goog