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=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 74FE0ECE59D for ; Wed, 16 Oct 2019 08:06:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D31F2168B for ; Wed, 16 Oct 2019 08:06:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571213177; bh=ULxWxdAcTuFv0r9XFK5unvh1UhCWUCjT+N+FdMDZkiI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=Pk4tNT1o96Yb2AJIhRWstaS9jJDp5MR4O/MzSdsphaw5PzYwrz2C4Wm35c/PvkWaZ 4Qx/KDZHdrdtXpGu7Esa+izT+xmb8Sw7kcyM4AHn3a4Qvv0uHoo/OQxyq9/UfHV78P 8GMepTaT1Zd6FNSF1pB1ZN7ZmaCfAFrDRV+pnV9s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404046AbfJPIGQ (ORCPT ); Wed, 16 Oct 2019 04:06:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:53204 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388733AbfJPIGP (ORCPT ); Wed, 16 Oct 2019 04:06:15 -0400 Received: from localhost (unknown [171.76.123.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4519E20650; Wed, 16 Oct 2019 08:06:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571213175; bh=ULxWxdAcTuFv0r9XFK5unvh1UhCWUCjT+N+FdMDZkiI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=aYJcH+jghu4SsAyCK/ysYaa/1+B6G1abNBYHIc7qHCoFNltm6aNS/+LRguSfHc5uB MKoxw22mhR9Yk+e8H9gkIIn3Gr1vnIPmi/kYgCOOwV+XZrWQGzzikTDPRXYOf2YUiJ wHW1Hnw3M1ZlGIoV5pow6OcYhynrU+Hxtw/3Dqpw= Date: Wed, 16 Oct 2019 13:36:07 +0530 From: Vinod Koul To: Bjorn Andersson Cc: Catalin Marinas , Will Deacon , Shawn Guo , Olof Johansson , Maxime Ripard , Arnd Bergmann , Anson Huang , Jagan Teki , Leonard Crestez , Dinh Nguyen , Marcin Juszkiewicz , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: Re: [PATCH] arm64: defconfig: Enable Qualcomm pseudo rng Message-ID: <20191016080607.GH2654@vkoul-mobl> References: <20191011235035.374569-1-bjorn.andersson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191011235035.374569-1-bjorn.andersson@linaro.org> User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11-10-19, 16:50, Bjorn Andersson wrote: > Most Qualcomm platforms contain a pseudo random number generator > hardware block. Enable the driver for this block. This enabled and loads the driver, but doesn't enable the usage. We also need CONFIG_CRYPTO_RNG2 but that gets selected so that part is fine. For userspace we need CONFIG_CRYPTO_USER_API_RNG to be added so that kernel exports interface to users. So can you add that as well. Thanks > > Signed-off-by: Bjorn Andersson > --- > arch/arm64/configs/defconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig > index a5953b0b382d..688c8f200034 100644 > --- a/arch/arm64/configs/defconfig > +++ b/arch/arm64/configs/defconfig > @@ -855,6 +855,7 @@ CONFIG_NLS_ISO8859_1=y > CONFIG_SECURITY=y > CONFIG_CRYPTO_ECHAINIV=y > CONFIG_CRYPTO_ANSI_CPRNG=y > +CONFIG_CRYPTO_DEV_QCOM_RNG=m > CONFIG_DMA_CMA=y > CONFIG_CMA_SIZE_MBYTES=32 > CONFIG_PRINTK_TIME=y > -- > 2.23.0 -- ~Vinod