Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp1863917ybb; Sun, 29 Mar 2020 15:35:34 -0700 (PDT) X-Google-Smtp-Source: ADFU+vtBdzl7CCeOLUPBfNiskevx4HOGkwcryBmhs6gQNX1pNEYXGHkLzGEaMcfiQuMrp/sqSXCh X-Received: by 2002:a4a:aa44:: with SMTP id y4mr7423555oom.74.1585521334765; Sun, 29 Mar 2020 15:35:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1585521334; cv=none; d=google.com; s=arc-20160816; b=jtm+ycZ4ULQl7c0gc7MbO1vjUE7FJPFyeY4NX3htq8ShqFdR+B6zrJ4w1OvhvHXKbE K0YTacMSiIjofYezFpsyeBb0GA2/m4itse9MmBECQNIwuKHh1j8dvP+f8NNYYFUa47Na /iN0SsNb0wQgwhYOEvBDM4dRekWAWmHKCNZmaVHp02KV2m/zTrf6qQLxJP/Qmugzlqyi U8KSS3GNBRqqH4HM8Dx4K53zZ9gehQk/Uoho2uY6hjNXsOOXC1exgfAuBvFlUbwVZB8h h9XHw9RA5Wme1EPaFCOf0vQZzh08YvPazDYN6+DsIGXctMoE9MumlC5Mf54Y4jFy3Dzv jKUw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=CofiEpOz6qV4bJ7q1lzn+JSyUPuHWUwAKNt2NMQTa7g=; b=MzV72JlBl0MOEhuRq8NC8cxK2itFHtsOz54Zp86mx6sKdd/gbc82uKRHwAGG6BfHzd Y32dfMSeXEEWencAjuAwh/Ygnm3niLxIF+udLjz4woZgPNUp8QjWtT0iI51JovZtZVGr qfX2qYzmIQ6pHw7BsIn/eJy+bv2Kf+Kx2A11YpVryUuWs0kxdmC4QssUyDtNE9gk7TP+ MJawaHnlQicjTtlQs9llGbOWp+FKQtpUJ1yl+gPwHhAfdoFCKRDRWzOet7ssMA+5e0RH 8FenPgKKHSuu8h8+DRWOtN25U6h6QOqrw7fnKt1DDlsIfR0qEYpBx7hEXxbv3ZScRSKv t/Bg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id m125si4862238oia.240.2020.03.29.15.35.10; Sun, 29 Mar 2020 15:35:34 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728695AbgC2UpV (ORCPT + 99 others); Sun, 29 Mar 2020 16:45:21 -0400 Received: from mx.sdf.org ([205.166.94.20]:50317 "EHLO mx.sdf.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727370AbgC2UpV (ORCPT ); Sun, 29 Mar 2020 16:45:21 -0400 Received: from sdf.org (IDENT:lkml@sdf.lonestar.org [205.166.94.16]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 02TKj3GP003334 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Sun, 29 Mar 2020 20:45:04 GMT Received: (from lkml@localhost) by sdf.org (8.15.2/8.12.8/Submit) id 02TKj23i004239; Sun, 29 Mar 2020 20:45:02 GMT Date: Sun, 29 Mar 2020 20:45:01 +0000 From: George Spelvin To: Jason Gunthorpe Cc: Bernard Metzler , linux-kernel@vger.kernel.org, Doug Ledford , linux-rdma@vger.kernel.org, Faisal Latif , Shiraz Saleem , Bart Van Assche , lkml@sdf.org Subject: Re: [RFC PATCH v1 42/50] drivers/ininiband: Use get_random_u32() Message-ID: <20200329204501.GF4675@SDF.ORG> References: <202003281643.02SGhN9T020186@sdf.org> <20200329165204.GC4675@SDF.ORG> <20200329200213.GG20941@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200329200213.GG20941@ziepe.ca> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 29, 2020 at 05:02:13PM -0300, Jason Gunthorpe wrote: > On Sun, Mar 29, 2020 at 04:52:04PM +0000, George Spelvin wrote: >> Many intra-machine networks (like infiniband) are specifically not >> designed to be robust in the face of malicious actors on the network. > > This is not really true at all.. Eep, this came out wrong! Let me clarify: Many intra-machine networks like SCSI, LPC, HyperTransport, QuickPath, and I2C are specifically not designed to be robust in the face of malicious actors on the network/bus. I don't know, *and was wondering*, whether this is true of Infiniband. Does that make more sense?