From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753732AbaENWbS (ORCPT ); Wed, 14 May 2014 18:31:18 -0400 Received: from mail-pa0-f42.google.com ([209.85.220.42]:53118 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752875AbaENWbQ (ORCPT ); Wed, 14 May 2014 18:31:16 -0400 From: David Riley To: Thomas Gleixner Cc: John Stultz , Doug Anderson , linux-kernel@vger.kernel.org, David Riley Subject: [PATCH v2 0/2] Add test to validate udelay Date: Wed, 14 May 2014 15:30:15 -0700 Message-Id: <1400106617-17085-1-git-send-email-davidriley@chromium.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1399421543-7751-1-git-send-email-davidriley@chromium.org> References: <1399421543-7751-1-git-send-email-davidriley@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This change adds a module and a script that makes use of it to validate that udelay delays for at least as long as requested (as compared to ktime). Changes since v1: - allow udelay() to be 0.5% faster than requested as per feedback David Riley (2): kernel: time: Add udelay_test module to validate udelay tools: add script to test udelay kernel/time/Kconfig | 7 ++ kernel/time/Makefile | 1 + kernel/time/udelay_test.c | 169 +++++++++++++++++++++++++++++++++++++++++++++ tools/time/udelay_test.sh | 66 ++++++++++++++++++ 4 files changed, 243 insertions(+) create mode 100644 kernel/time/udelay_test.c create mode 100644 tools/time/udelay_test.sh -- 1.7.9.5