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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 35E2BC2BA04 for ; Wed, 12 May 2021 16:37:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1791760BBB for ; Wed, 12 May 2021 16:37:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237149AbhELQiC (ORCPT ); Wed, 12 May 2021 12:38:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:40102 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236739AbhELPqB (ORCPT ); Wed, 12 May 2021 11:46:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E9F3B619AD; Wed, 12 May 2021 15:23:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620833011; bh=brDECwq0ads36K/hjlP+Sn6y3VTsqo9k6dOwc+CzcbA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vONhtI317Qwvu9OVpT5UirCI16Oy3Sy+CgMXSwPNCyDC98ifveSCVk27cSeyBXNkX de9X183xsXjxFHTkloLa+3eTDOvNrewIahaEBd8lQro2Mwv3UHO4V6HP0avSCtMUiD +qRabXe0oPzXh9fhzCqBnFRD38gCcEsEaDPQqArY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Adrian Hunter , Leo Yan , Alexander Shishkin , "Gustavo A. R. Silva" , Ingo Molnar , Jiri Olsa , Kan Liang , Mark Rutland , Namhyung Kim , Peter Zijlstra , Steve MacLean , Yonatan Goldschmidt , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 5.10 512/530] perf tools: Change fields type in perf_record_time_conv Date: Wed, 12 May 2021 16:50:22 +0200 Message-Id: <20210512144836.587096611@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144819.664462530@linuxfoundation.org> References: <20210512144819.664462530@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Leo Yan [ Upstream commit e1d380ea8b00db4bb14d1f513000d4b62aa9d3f0 ] C standard claims "An object declared as type _Bool is large enough to store the values 0 and 1", bool type size can be 1 byte or larger than 1 byte. Thus it's uncertian for bool type size with different compilers. This patch changes the bool type in structure perf_record_time_conv to __u8 type, and pads extra bytes for 8-byte alignment; this can give reliable structure size. Fixes: d110162cafc8 ("perf tsc: Support cap_user_time_short for event TIME_CONV") Suggested-by: Adrian Hunter Signed-off-by: Leo Yan Acked-by: Adrian Hunter Cc: Alexander Shishkin Cc: Gustavo A. R. Silva Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steve MacLean Cc: Yonatan Goldschmidt Link: https://lore.kernel.org/r/20210428120915.7123-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/lib/perf/include/perf/event.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h index 988c539bedb6..baf64ea74e10 100644 --- a/tools/lib/perf/include/perf/event.h +++ b/tools/lib/perf/include/perf/event.h @@ -336,8 +336,9 @@ struct perf_record_time_conv { __u64 time_zero; __u64 time_cycles; __u64 time_mask; - bool cap_user_time_zero; - bool cap_user_time_short; + __u8 cap_user_time_zero; + __u8 cap_user_time_short; + __u8 reserved[6]; /* For alignment */ }; struct perf_record_header_feature { -- 2.30.2