From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f68.google.com (mail-ed1-f68.google.com [209.85.208.68]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3CD3433BBCB for ; Mon, 15 Dec 2025 14:17:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.68 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765808263; cv=none; b=dXwicp7oKFyx5gwWZi7zwDfH4OAwShtPPs40X9dOEtCU/D2RzG8wv/1QSYSYVarGeeBKsIu6LAIKRNehmWO49S0MGrDnba6gQhH41wy7VTnsHU9Avo3JLoyjMs1R80Huk5TBwbe6gU2jQjcoMdmDTEcbBWpcbxsE+FAsOclBq4I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765808263; c=relaxed/simple; bh=KVuyHGeUtpLkpGJYZbfb5WtDJicjtg3giXBlS+vhN0U=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=sc7znAvEAFYjxXXtBACrvrHs6GyTXE1TU4oF8PZXchNqXmzkmwRjO7w5mMuhJ64R7k0uu3xC1U3JrnkTuCb6yi29M1njzFz42iu2wxtgYGx+sj2jyIJBmSYX2ckrIVrAo4nh+lmhewnB1i9goscpLgCx8+y5HPRzfeEheLaNLRI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=0/MwqUlQ; arc=none smtp.client-ip=209.85.208.68 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="0/MwqUlQ" Received: by mail-ed1-f68.google.com with SMTP id 4fb4d7f45d1cf-64165cd689eso5527821a12.0 for ; Mon, 15 Dec 2025 06:17:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1765808255; x=1766413055; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ppOcPFqIwq9P7NGqZqTz1/tjn18c3F+fMKSBb9x2/Cg=; b=0/MwqUlQdu789oy/P41nfqLWb7EnWXY85sbaj1smEzYO15dtuHKqLxDRGab17o4MUA D9TVJCvajbSn5mubZh7M9K5h4OT9pI/1qbh3beoBI1s+cs7/fK/G4sJRfPkfXVwqwBh3 SXWcXenTFagxpnUecAa9mbcMVNCQ0U0akf+J4xD5CfLDcNwb1vJBMEz8cd19gt/edXo+ 6prwzju0rCEY9Jjuz4PQX50jj8chQizO7srmUjvdHU5PwJBwJQDO9vd0BIIvgTsOQttn fOSTaGyo9VctrEKOw8TJvYNlkT8bhVXwWSOKvHyDcKwgwrFzGeqWEX80uILWCX3i0XTf hi4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765808255; x=1766413055; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=ppOcPFqIwq9P7NGqZqTz1/tjn18c3F+fMKSBb9x2/Cg=; b=mICbGPzTZgnleBoq43L0fHyENqrrEmz4l2yNCJ815Px1CcuUniUqRGRtysKrQSRlpO VdcZy8VDWKMpTVzzKoGHFaYmogwBrt4q4ll7N+uF9Ez7sIoPyWyBGAtVpnRBzaoab+fn lS5EApvQuywbwOUyexRlgkhEF2CtHlmquyVOZ1dLpWu+2//mfkB3ERqxAGBn7diVwbec ahGROvkgNVp0AiRstS63Ts8m/D+PsB/TYpoELRbYEboSDsEfq3BYa5YnmBCQT24eRGaJ TNan1Gmpiof/3oEBclZgG6CwSNLB7a53ylXhj2Dc9NqHKQF7funixBN9QBooEFTfW+GT z4bg== X-Forwarded-Encrypted: i=1; AJvYcCVmYTyu7m+l1OfPDx6qLWt+BjDaKFJ9dX5TH67QKE27LD10SUQ7K+V9AkTdiTJutGPJlWVH/IA=@vger.kernel.org X-Gm-Message-State: AOJu0Yz7bNw3qof4TUVB5xl+85eSABITJCBN0vkF9CoOQt1X3b5NgKbm TI9pirmVZwwYqrR626d9r0cbaJAXh47Cpd8lP46B6aaLXL4M4Gi28SVEJL2b831OPk8= X-Gm-Gg: AY/fxX754s2xwEQWVQ6uIpfj+QqPi9IavcS7KIWmxwsgXzXAoAcsZD6SEPI2GUItW7v Orrio7y4oL7tAWm4qb+Vt+C2iML8rJSpC28AxM+CdlY145rKy3TsPlr5BlLJRfUGkNzEz111LxH 2/aafyCoc7XtXn9PbZKR0EuACM75Cx6RUe3t0PjddB8/Z0Nv+FrbEDvdN3uYXsc/nYXo+qxKk4F 0nQe8ti/q1ggha/wMJbbC7q1sm4ZqvgDk4ETJKp5Gu5yRX0zjl24cvzcvpTzkWOsC3gsixvENOZ mqElq3/GKDKj5VumL9dvYnuZzpyU9iLKEnUMbwbbF8tCgMaEBQz94019yXPXXfXoX0MAeloKiB0 HOZ28IDXVrdk+Y3n4ySdVbj3mSOUT8zSPMZsMOeGYkgZa4TGdIIzeOM0TGIihdcMeKSmdCxfSw1 15IEt3VDGYlRl9LBe75nX6eNw9t1DuNLt+0um5qT2nx9cIYJYCSNdKgt3vrg== X-Google-Smtp-Source: AGHT+IF5kWl8asvVZ2gDn2/ukMC7FmJVzWuHgbBPUo4GSSTrWpKfiHxIiV3JEK3vNep6zj7EVQ2rxQ== X-Received: by 2002:a17:907:a909:b0:b7c:cc8d:14ef with SMTP id a640c23a62f3a-b7d218d55fdmr1188092466b.32.1765808254923; Mon, 15 Dec 2025 06:17:34 -0800 (PST) Received: from localhost (ip-046-005-122-062.um12.pools.vodafone-ip.de. [46.5.122.62]) by smtp.gmail.com with UTF8SMTPSA id a640c23a62f3a-b7cfa56c152sm1380034166b.56.2025.12.15.06.17.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Dec 2025 06:17:34 -0800 (PST) From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Jens Wiklander , Jonathan Corbet , Sumit Garg , Olivia Mackall , Herbert Xu , =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= , Alexandre Belloni , Ard Biesheuvel , Maxime Coquelin , Alexandre Torgue , Sumit Garg , Ilias Apalodimas , Jan Kiszka , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Sudeep Holla , Christophe JAILLET , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , Michael Chan , Pavan Chebbi , James Bottomley , Jarkko Sakkinen , Mimi Zohar , David Howells , Paul Moore , James Morris , "Serge E. Hallyn" , Peter Huewe Cc: op-tee@lists.trustedfirmware.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, linux-rtc@vger.kernel.org, linux-efi@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Cristian Marussi , arm-scmi@vger.kernel.org, linux-mips@vger.kernel.org, netdev@vger.kernel.org, linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org, Jason Gunthorpe Subject: [PATCH v2 00/17] tee: Use bus callbacks instead of driver callbacks Date: Mon, 15 Dec 2025 15:16:30 +0100 Message-ID: X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Developer-Signature: v=1; a=openpgp-sha256; l=3083; i=u.kleine-koenig@baylibre.com; h=from:subject:message-id; bh=KVuyHGeUtpLkpGJYZbfb5WtDJicjtg3giXBlS+vhN0U=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBpQBhBsL1Z+rYFoGFHUfEy6nbD85QotpwGnuS0G OxYNqNRFI2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCaUAYQQAKCRCPgPtYfRL+ TugUB/9E31O/wKyUkNJNEPUiyayhLen3mT/3afyja8AKlZtLRRSDYD85SklWs8WUYR25f620Tug HCQFCBGP6zvWFDFUJWDts8iS5V7u/2f3fzK4EwWEIO8RjWf//RCGbcOXzrjD+gHhyiO4ntF2NWr 3ospR0B/APcHFEMI3zfkmIaPNlyEhNrddsNRbaHKA+WTWhZm7A/yqOnVYIJ6MLuTrhjHLZZoL5u gBimMOyT/Dmu6TUF9ex7Rhk+vookCt9jpn+vbxsz0ArRtMIo0W8fVdouxPDFA9SMn/bCn6BBJ+B fl85F7WiQwNbfWoeC8/qrjWMCGDfxgyRZi39jRQ+nWgTC5V5 X-Developer-Key: i=u.kleine-koenig@baylibre.com; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: 8bit Hello, the objective of this series is to make tee driver stop using callbacks in struct device_driver. These were superseded by bus methods in 2006 (commit 594c8281f905 ("[PATCH] Add bus_type probe, remove, shutdown methods.")) but nobody cared to convert all subsystems accordingly. Here the tee drivers are converted. The first commit is somewhat unrelated, but simplifies the conversion (and the drivers). It introduces driver registration helpers that care about setting the bus and owner. (The latter is missing in all drivers, so by using these helpers the drivers become more correct.) v1 of this series is available at https://lore.kernel.org/all/cover.1765472125.git.u.kleine-koenig@baylibre.com Changes since v1: - rebase to v6.19-rc1 (no conflicts) - add tags received so far - fix whitespace issues pointed out by Sumit Garg - fix shutdown callback to shutdown and not remove As already noted in v1's cover letter, this series should go in during a single merge window as there are runtime warnings when the series is only applied partially. Sumit Garg suggested to apply the whole series via Jens Wiklander's tree. If this is done the dependencies in this series are honored, in case the plan changes: Patches #4 - #17 depend on the first two. Note this series is only build tested. Uwe Kleine-König (17): tee: Add some helpers to reduce boilerplate for tee client drivers tee: Add probe, remove and shutdown bus callbacks to tee_client_driver tee: Adapt documentation to cover recent additions hwrng: optee - Make use of module_tee_client_driver() hwrng: optee - Make use of tee bus methods rtc: optee: Migrate to use tee specific driver registration function rtc: optee: Make use of tee bus methods efi: stmm: Make use of module_tee_client_driver() efi: stmm: Make use of tee bus methods firmware: arm_scmi: optee: Make use of module_tee_client_driver() firmware: arm_scmi: Make use of tee bus methods firmware: tee_bnxt: Make use of module_tee_client_driver() firmware: tee_bnxt: Make use of tee bus methods KEYS: trusted: Migrate to use tee specific driver registration function KEYS: trusted: Make use of tee bus methods tpm/tpm_ftpm_tee: Make use of tee specific driver registration tpm/tpm_ftpm_tee: Make use of tee bus methods Documentation/driver-api/tee.rst | 18 +---- drivers/char/hw_random/optee-rng.c | 26 ++---- drivers/char/tpm/tpm_ftpm_tee.c | 31 +++++--- drivers/firmware/arm_scmi/transports/optee.c | 32 +++----- drivers/firmware/broadcom/tee_bnxt_fw.c | 30 ++----- drivers/firmware/efi/stmm/tee_stmm_efi.c | 25 ++---- drivers/rtc/rtc-optee.c | 27 ++----- drivers/tee/tee_core.c | 84 ++++++++++++++++++++ include/linux/tee_drv.h | 12 +++ security/keys/trusted-keys/trusted_tee.c | 17 ++-- 10 files changed, 164 insertions(+), 138 deletions(-) base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8 -- 2.47.3