From patchwork Sun Apr 24 10:42:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephan Mueller X-Patchwork-Id: 8920131 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CE11C9F441 for ; Sun, 24 Apr 2016 10:45:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A30B520122 for ; Sun, 24 Apr 2016 10:45:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9148320219 for ; Sun, 24 Apr 2016 10:45:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752552AbcDXKpU (ORCPT ); Sun, 24 Apr 2016 06:45:20 -0400 Received: from mail.eperm.de ([89.247.134.16]:53258 "EHLO mail.eperm.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752538AbcDXKpT (ORCPT ); Sun, 24 Apr 2016 06:45:19 -0400 Received: from positron.chronox.de (mail.eperm.de [89.247.134.16]) by mail.eperm.de (Postfix) with ESMTPA id 5FF7C2A005E; Sun, 24 Apr 2016 12:45:12 +0200 (CEST) From: Stephan Mueller To: herbert@gondor.apana.org.au, Theodore Tso Cc: sandyinchina@gmail.com, Jason Cooper , John Denker , "H. Peter Anvin" , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 5/6] crypto: LRNG - hook LRNG into interrupt handler Date: Sun, 24 Apr 2016 12:42:57 +0200 Message-ID: <1597982.NXJbFZcdAH@positron.chronox.de> User-Agent: KMail/4.14.10 (Linux/4.4.7-300.fc23.x86_64; KDE/4.14.18; x86_64; ; ) In-Reply-To: <1589319.WyasadRQQe@positron.chronox.de> References: <1589319.WyasadRQQe@positron.chronox.de> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The LRNG places a callback into the interrupt handler to be triggered for each interrupt. With this callback, entropy is collected. Signed-off-by: Stephan Mueller --- kernel/irq/handle.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index a15b548..8d64e37 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -175,6 +175,7 @@ irqreturn_t handle_irq_event_percpu(struct irq_desc *desc) } add_interrupt_randomness(irq, flags); + lrng_irq_process(); if (!noirqdebug) note_interrupt(desc, retval);