From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753594Ab3AQR3J (ORCPT ); Thu, 17 Jan 2013 12:29:09 -0500 Received: from e8.ny.us.ibm.com ([32.97.182.138]:49037 "EHLO e8.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751152Ab3AQR3H (ORCPT ); Thu, 17 Jan 2013 12:29:07 -0500 Date: Thu, 17 Jan 2013 09:28:14 -0800 From: Sukadev Bhattiprolu To: acme@ghostprotocols.net Cc: jolsa@redhat.com, Anton Blanchard , paulus@samba.org, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org Subject: [PATCH] perf: Fix PMU format parsing test failure Message-ID: <20130117172814.GA18882@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Operating-System: Linux 2.0.32 on an i486 User-Agent: Mutt/1.5.20 (2009-06-14) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13011717-9360-0000-0000-00000F57DFB0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>From 776e6d7942754f139c27753213c9cf4617536618 Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu Date: Thu, 17 Jan 2013 09:11:30 -0800 Subject: [PATCH] perf; Fix PMU format parsing test failure On POWER, the 'perf format parsing' test always fails. Looks like it is because memset() is being passed number of longs rather than number of bytes. It is interesting that the test always passes on my x86 box. With this patch, the test passes on POWER and continues to pass on x86. Signed-off-by: Sukadev Bhattiprolu --- tools/perf/util/include/linux/bitops.h | 1 + tools/perf/util/pmu.c | 2 +- 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h index a55d8cf..45cf10a 100644 --- a/tools/perf/util/include/linux/bitops.h +++ b/tools/perf/util/include/linux/bitops.h @@ -14,6 +14,7 @@ #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) #define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64)) #define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32)) +#define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE) #define for_each_set_bit(bit, addr, size) \ for ((bit) = find_first_bit((addr), (size)); \ diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 9bdc60c..b93ff14 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -548,7 +548,7 @@ void perf_pmu__set_format(unsigned long *bits, long from, long to) if (!to) to = from; - memset(bits, 0, BITS_TO_LONGS(PERF_PMU_FORMAT_BITS)); + memset(bits, 0, BITS_TO_BYTES(PERF_PMU_FORMAT_BITS)); for (b = from; b <= to; b++) set_bit(b, bits); } -- 1.7.1