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 0F2DA2D12F3; Sat, 23 May 2026 19:04:04 +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=1779563045; cv=none; b=jpBK+aTxjYkt1CPmfoP1umdQF6aVimvZyRosofTRcjxtRl99r09oUqrY3Dwwt0CBe/1IiqSruheXE5ZxMrthrykKA1ccDZ53VxsGRZGinIexI5EOfoSSqYNyljgIvvRAs+HYT6Wjm/JCLuC+A5//2WEk052tgZFa35CUg/RHZy4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779563045; c=relaxed/simple; bh=qKdKW12reljmkI9Y5GL96UhP5eGpAEu75do6kp2GrbQ=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=bZNX9jqF2o6wzAqd/hU/H39DfFkJr7uYaQIrd18IoIGYIduOLBrqT6QN6C6ch1vPwKlKs3U1702Vd6uvh+eal7nBjIE1SrmzwJto2u4Q4wjhzTSF4ZA0C4M7aaA4/UiLTykj4ifX2ns+bpfKFN5VZosfIoGKhw0MPzr1+SU0LXs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ncgstb4+; 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="Ncgstb4+" Received: by smtp.kernel.org (Postfix) with ESMTPS id 876E6C2BCB4; Sat, 23 May 2026 19:04:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779563044; bh=qKdKW12reljmkI9Y5GL96UhP5eGpAEu75do6kp2GrbQ=; h=From:Subject:Date:To:Cc:Reply-To:From; b=Ncgstb4+cU6Kr/5vk8rsYFyV4+Vp9eGMDxhnXQVVqjvXKekp7P5Mvrg2rKjmFIeM6 Wu7KH2kzMzCpMVfUG1Vvf81mVhWYdikI1QG/7SR1hByDyv8lAngLOlu7nqTTL7gx4b MGWLaH6ZRhXxbVIKTFaYwkSxc0XfcMfPYp30s+Polf8A0ix9xeIHIxK5vZlU0dddMX gBnz5J2FtdgQl7mMv9nA2wWJhyVB9C4vElAyGqIwnZQy7nAEjDEbGXhXD9gp4MINOk VVDHAU8/uM8OwFnaOCmu0R6IMB0x9DmP0dRMRfKxgvSflDZJsHgQXKEjb1lVGupk/y x0tJS52KuBE2w== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D9A0CD5BB1; Sat, 23 May 2026 19:04:04 +0000 (UTC) From: Demi Marie Obenour via B4 Relay Subject: [PATCH 0/2] Delete the Qualcomm crypto engine Date: Sat, 23 May 2026 15:03:55 -0400 Message-Id: <20260523-delete-qce-v1-0-86105cd7f406@gmail.com> Precedence: bulk X-Mailing-List: devicetree@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=H4sIAAAAAAAC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDUyNj3ZTUnNSSVN3C5FRdA2Mz4xQjo0QLU0szJaCGgqLUtMwKsGHRsbW 1AAdO39VcAAAA X-Change-ID: 20260523-delete-qce-0363d22a8596 To: Herbert Xu , "David S. Miller" , Thara Gopinath , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Russell King Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-msm@vger.kernel.org, Eric Biggers , Ard Biesheuvel , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Demi Marie Obenour X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1779563043; l=2071; i=demiobenour@gmail.com; s=20250731; h=from:subject:message-id; bh=qKdKW12reljmkI9Y5GL96UhP5eGpAEu75do6kp2GrbQ=; b=TtSJ+IKiIz4+J8ZUozDqY5sbAF3vqtXPpM9l1sFNxConO52NyijO6g3Vw49p+zAa/n1QHX5tt xTSDIB65+CJC+aZ2Q+K518avBn4FicGdDE2+6UFcs1UfpBdkIoLYdjs X-Developer-Key: i=demiobenour@gmail.com; a=ed25519; pk=4iGY+ynEKxIfs+fIUK9EzsvZ44yGE0GvXLeLTPKKPhI= X-Endpoint-Received: by B4 Relay for demiobenour@gmail.com/20250731 with auth_id=473 X-Original-From: Demi Marie Obenour Reply-To: demiobenour@gmail.com The only realistic uses I can think of are: 1. Very weak devices where QCE is actually faster. 2. Devices without bitsliced NEON. Do any such devices exist in the wild? I have no idea. Not even compile-tested, but should be trivial as it just deletes code. I didn't change the device tree beyond marking the bindings as deprecated. Signed-off-by: Demi Marie Obenour --- Demi Marie Obenour (2): crypto: Delete Qualcomm crypto engine driver devicetree: Mark QCE bindings as deprecated .../devicetree/bindings/crypto/qcom-qce.yaml | 3 + MAINTAINERS | 8 - arch/arm/configs/multi_v7_defconfig | 1 - arch/arm64/configs/defconfig | 1 - drivers/crypto/Kconfig | 111 --- drivers/crypto/Makefile | 1 - drivers/crypto/qce/Makefile | 9 - drivers/crypto/qce/aead.c | 841 --------------------- drivers/crypto/qce/aead.h | 56 -- drivers/crypto/qce/cipher.h | 56 -- drivers/crypto/qce/common.c | 595 --------------- drivers/crypto/qce/common.h | 104 --- drivers/crypto/qce/core.c | 271 ------- drivers/crypto/qce/core.h | 64 -- drivers/crypto/qce/dma.c | 135 ---- drivers/crypto/qce/dma.h | 47 -- drivers/crypto/qce/regs-v5.h | 326 -------- drivers/crypto/qce/sha.c | 545 ------------- drivers/crypto/qce/sha.h | 72 -- drivers/crypto/qce/skcipher.c | 529 ------------- 20 files changed, 3 insertions(+), 3772 deletions(-) --- base-commit: 49e05bb00f2e8168695f7af4d694c39e1423e8a2 change-id: 20260523-delete-qce-0363d22a8596 Best regards, -- Demi Marie Obenour