From nobody Mon Apr 6 14:12:00 2026 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 509BAC6FA83 for ; Wed, 7 Sep 2022 09:19:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230128AbiIGJTt (ORCPT ); Wed, 7 Sep 2022 05:19:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230111AbiIGJTq (ORCPT ); Wed, 7 Sep 2022 05:19:46 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 69C3E55B3; Wed, 7 Sep 2022 02:19:43 -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 37EB8139F; Wed, 7 Sep 2022 02:19:49 -0700 (PDT) Received: from a077893.blr.arm.com (unknown [10.162.40.15]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 4EF9D3F73D; Wed, 7 Sep 2022 02:20:07 -0700 (PDT) From: Anshuman Khandual To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, peterz@infradead.org Cc: Anshuman Khandual , James Clark , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , x86@kernel.org Subject: [PATCH V3 2/4] perf/core: Assert PERF_EVENT_FLAG_ARCH does not overlap with generic flags Date: Wed, 7 Sep 2022 14:49:22 +0530 Message-Id: <20220907091924.439193-3-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220907091924.439193-1-anshuman.khandual@arm.com> References: <20220907091924.439193-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This just ensures that PERF_EVENT_FLAG_ARCH does not overlap with generic hardware event flags. Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Arnaldo Carvalho de Melo Cc: Mark Rutland Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Cc: linux-perf-users@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: James Clark Signed-off-by: Anshuman Khandual --- include/linux/perf_event.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 3f51fbf4a595..10e23a0f9db0 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -140,6 +140,8 @@ struct hw_perf_event_extra { #define PERF_EVENT_FLAG_ARCH 0x000fffff #define PERF_EVENT_FLAG_USER_READ_CNT 0x80000000 =20 +static_assert((PERF_EVENT_FLAG_USER_READ_CNT & PERF_EVENT_FLAG_ARCH) =3D= =3D 0); + /** * struct hw_perf_event - performance event hardware details: */ --=20 2.25.1