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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2DFC7C0015E for ; Mon, 24 Jul 2023 13:48:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231814AbjGXNsZ (ORCPT ); Mon, 24 Jul 2023 09:48:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49572 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229505AbjGXNsH (ORCPT ); Mon, 24 Jul 2023 09:48:07 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B941549CF; Mon, 24 Jul 2023 06:45:53 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2CE9815A1; Mon, 24 Jul 2023 06:46:02 -0700 (PDT) Received: from e127643.broadband (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 450813F67D; Mon, 24 Jul 2023 06:45:16 -0700 (PDT) From: James Clark To: linux-perf-users@vger.kernel.org, irogers@google.com, anshuman.khandual@arm.com, will@kernel.org Cc: James Clark , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Thomas Gleixner , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Kan Liang , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/4] perf/x86: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability Date: Mon, 24 Jul 2023 14:44:57 +0100 Message-Id: <20230724134500.970496-3-james.clark@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230724134500.970496-1-james.clark@arm.com> References: <20230724134500.970496-1-james.clark@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Since commit bd2756811766 ("perf: Rewrite core context handling") the relationship between perf_event_context and PMUs has changed so that the error scenario that PERF_PMU_CAP_HETEROGENEOUS_CPUS originally silenced no longer exists. Remove the capability to avoid confusion that it actually influences any perf core behavior. This change should be a no-op. Acked-by: Ian Rogers Signed-off-by: James Clark --- arch/x86/events/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 9d248703cbdd..2353aaf0b248 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -2168,7 +2168,6 @@ static int __init init_hw_perf_events(void) hybrid_pmu->pmu = pmu; hybrid_pmu->pmu.type = -1; hybrid_pmu->pmu.attr_update = x86_pmu.attr_update; - hybrid_pmu->pmu.capabilities |= PERF_PMU_CAP_HETEROGENEOUS_CPUS; hybrid_pmu->pmu.capabilities |= PERF_PMU_CAP_EXTENDED_HW_TYPE; err = perf_pmu_register(&hybrid_pmu->pmu, hybrid_pmu->name, -- 2.34.1