From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 64B02C55167 for ; Fri, 31 Jul 2026 09:06:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rKzJJsEhcg9aCW+oJgDz0AYX9+9OY1teunyfmPeNJGU=; b=mr8fZE5y043chikC+XYpl1BHOQ EelZKV+DzBvnKoIOw3miyxKUxdfN5KzY8/X5vuNJ+TYqmKCpixsDLOhvE1jPDWaynCJnOR0Oe0l9a HFzE3PlcXVNKniIv6oYzkeYRsTqnqh7RBXilWZ17Dx/nYBoEoCbV6CUCvdSy6CI9MtuoQL2pb+eOo hUX6HSypq9afdpIHwElHu5dtyCUkGCqAMNwq8jvzwdAC31PavRApsJQ6WxaiDaRwfOYBtLzdUOXTr zBvV/BX6MBG95G9iTIM5W59RDHGz5nzZ3cR5tTysqY1Gc1RI9kPxBitwG8x/qeOanHX891FVH5BGe 1drcpK9g==; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 31/07/2026 07:08, Eric Biggers wrote: > None of the algorithms the QCE driver registers with the crypto API are > even close to being useful. They're massively outperformed by the The amount of patches you send towards removal of QCE is really stunning. Or rather worrying. This is like third approach or so. Your previous approaches received valid feedback, including even fixes and committment of new maintainer. But you even complained that it does receive fixes! [1] We removed the driver temporarily from typical configurations, so no one will be affected, by whatever is found now and not yet fixed. Still not enough! For you this was reason to remove the driver (AGAIN!) [2] This is beyond comprehension and very unpleasant, because you actively work against the community with this approach. NAK Nacked-by: Krzysztof Kozlowski [1] https://lore.kernel.org/all/20260728152241.GA4281@quark/ [2] https://lore.kernel.org/all/20260724050645.223799-1-ebiggers@kernel.org/ > CPU-based crypto (even actually using far more CPU cycles than the > CPU-based crypto, due to the massive driver overhead), don't provide any > security benefits over the CPU-based crypto, and have various other > issues. They're also unrelated to the Inline Crypto Engine which works > far better and is what is actually being used these days. > > Due to the major performance problems people experienced when > accidentally using this driver, the algorithms were already demoted to > below the priority of ARMv8 CE in the crypto API several years ago. > Regardless of priority, these algorithms also aren't compatible with the > most common uses of in-kernel crypto; for example, they don't support > dm-crypt because they allocate memory, and they don't support IPsec > since they take a mutex which isn't compatible with softirq context. > > It's time to move on and just drop this obsolete functionality entirely. Best regards, Krzysztof