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 X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7290CC4363A for ; Mon, 5 Oct 2020 06:40:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 008262068D for ; Mon, 5 Oct 2020 06:40:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=chronox.de header.i=@chronox.de header.b="Q6sQmNeX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725866AbgJEGke (ORCPT ); Mon, 5 Oct 2020 02:40:34 -0400 Received: from mo4-p01-ob.smtp.rzone.de ([85.215.255.51]:14262 "EHLO mo4-p01-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725867AbgJEGke (ORCPT ); Mon, 5 Oct 2020 02:40:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1601880032; s=strato-dkim-0002; d=chronox.de; h=References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=BfPJTkHJ25aT4xHJTt8bqUqo6Mmt7owb63RplAlMbz0=; b=Q6sQmNeXAk8G1J0FDlQF03ZyjoIjvoEBOM2MmK7wCRScluNxjE3U3K51hIeJeRpWG8 6XtikIQfxeBi54qMX8FZYKVXwHTFSHNr3GtyXDKP1TBYQ+dqsKu+2KsySLFLu3GaAf/O ErCic+mJhUYhKXuONdcekE3tm7j03Qz/VBvh40fEyPkmdVGbGINSWUV2NkucMaPD8MFQ 7IzgxIMTj0MmpnQWSys3LEsJCogQjxRCJlCOkZRCXgBHh0FXFHo0Iiyc8pQP3D62LpDZ 6Lbf3e/12TmQuFSpc5Vm2YhNx+aQWKRkzFjNJDI5jcSeDnEqKMRN6frzPcQGLmv4DAGI ZBZw== X-RZG-AUTH: ":P2ERcEykfu11Y98lp/T7+hdri+uKZK8TKWEqNyiHySGSa9k9x2wdNs6neUFoh7cs3k0=" X-RZG-CLASS-ID: mo00 Received: from tauon.chronox.de by smtp.strato.de (RZmta 47.2.1 AUTH) with ESMTPSA id C0b627w956eQB0K (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Mon, 5 Oct 2020 08:40:26 +0200 (CEST) From: Stephan Mueller To: Christoph Hellwig , Ard Biesheuvel Cc: Palmer Dabbelt , linux-riscv , Android Kernel Team , kernel test robot , Linux Crypto Mailing List , Linux Kernel Mailing List Subject: Re: [PATCH] crypto: jitterentropy - bind statically into kernel Date: Mon, 05 Oct 2020 08:40:25 +0200 Message-ID: <2588700.mWSkj6HvKX@tauon.chronox.de> In-Reply-To: References: <20200930065617.934638-1-palmerdabbelt@google.com> <20201005061918.GB1856@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Am Montag, 5. Oktober 2020, 08:24:46 CEST schrieb Ard Biesheuvel: Hi Ard, > If jitterentropy is a special case, we could put a alternate > non-'static inline' version of random_get_entropy() in the core > kernel, and only export it if JITTER_ENTROPY is built as a module in > the first place. But I'd prefer it if jitterentropy switches to an API > that is suitable for driver consumption. Which API do you have in mind? In user space, I use clock_gettime(CLOCK_REALTIME) which also considers the clock source. Thanks Stephan