Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp1009523iob; Fri, 13 May 2022 19:28:44 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwx4Xp/V5i/MWkF4+dFN2iQ1U70Qr2oDnBZa8+ykLVrzrpI8VIurzYyPGLHVZMjeGXfT/AA X-Received: by 2002:adf:e891:0:b0:20a:d653:7cd2 with SMTP id d17-20020adfe891000000b0020ad6537cd2mr5819061wrm.195.1652495324027; Fri, 13 May 2022 19:28:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1652495324; cv=none; d=google.com; s=arc-20160816; b=HK46UBaaI9w96rCL6T9OpD0eNMRS1M8IbWSNY0/+ON9GW5qZPTKzWNmxYi/qdvvunx GTwNslDw/dpmh92HS6v+Hn9hyncZiMusqWKnsUL09bbJqgz3Va8/IOhsEnbml+cLirBP nCb8gZ0XkKiWVOTdGSeXqNj02eUVbUSMMaLkvSrdYnAj2H8M21PTggQ6MFIECh5P/F2m D/W32R3OLWWnWWUXqgAiQO8udbJgCuc2HCfBdeN1Z0yIcgSnGlpyhXIjBob5wl+RxebR y0e2uWKxct5sLUNvYQVDqJg/x7msnjKyvPakc1RUSbKbQPZBqsz9AE8BG94EXgTUhnrW 4odA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=gPNMbArBJCvYDYkV1IWzfKeqADSCcWxJPx+23eVhIls=; b=0IQS9YuI0ZlhEfDZ6xqdyWVcBLHVmaDdlr1014gFbjlT4urEVDYcdU+jXonhurMFsM k4ztm4div2eFHMZ6GBzzbRw2BQ/JtO9WrMfLj8W8tqmuXlu7AqI9SSjv8EvajmYvJ2I8 uk/mBGvXPozqk8mYFLaP+6FGm/O2f0F8vKkcRLHo8JGat+AUHTGHAEx6DJZJrPRo9K67 /sJDDB39T4H0ESKVXvWfpVUW48shTJhSJj++pT2OGX/06PZwjL0nS4OMIsGu4MTNoSQz CPmmCajFNiphyGPKe8rVOFac31oD11+SMQx1oizW//ueu5jp+VY5dG1iNAOI/DV40CJK BQgw== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning linux-crypto-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [23.128.96.19]) by mx.google.com with ESMTPS id o2-20020a5d47c2000000b00203e9019489si5117107wrc.525.2022.05.13.19.28.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 May 2022 19:28:44 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-crypto-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning linux-crypto-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1CBB34D781B; Fri, 13 May 2022 17:43:03 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377297AbiEMG0X (ORCPT + 99 others); Fri, 13 May 2022 02:26:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377299AbiEMG0T (ORCPT ); Fri, 13 May 2022 02:26:19 -0400 Received: from isilmar-4.linta.de (isilmar-4.linta.de [136.243.71.142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7A8292980B for ; Thu, 12 May 2022 23:26:08 -0700 (PDT) X-isilmar-external: YES X-isilmar-external: YES X-isilmar-external: YES X-isilmar-external: YES Received: from owl.dominikbrodowski.net (owl.brodo.linta [10.2.0.111]) by isilmar-4.linta.de (Postfix) with ESMTPSA id 9FE222013A8; Fri, 13 May 2022 06:26:05 +0000 (UTC) Received: by owl.dominikbrodowski.net (Postfix, from userid 1000) id 21EF380A2E; Fri, 13 May 2022 08:25:17 +0200 (CEST) Date: Fri, 13 May 2022 08:25:17 +0200 From: Dominik Brodowski To: "Jason A. Donenfeld" Cc: linux-kernel@vger.kernel, linux-crypto@vger.kernel.org, Theodore Ts'o Subject: Re: [PATCH] random: do not use batches when !crng_ready() Message-ID: References: <20220503121836.522258-1-Jason@zx2c4.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220503121836.522258-1-Jason@zx2c4.com> X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Am Tue, May 03, 2022 at 02:18:36PM +0200 schrieb Jason A. Donenfeld: > It's too hard to keep the batches synchronized, and pointless anyway, > since in !crng_ready(), we're updating the base_crng key really often, > where batching only hurts. So instead, if the crng isn't ready, just > call into get_random_bytes(). At this stage nothing is performance > critical anyhow. > > Cc: Theodore Ts'o > Cc: Dominik Brodowski > Signed-off-by: Jason A. Donenfeld Reviewed-by: Dominik Brodowski Thanks, Dominik