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=-9.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 90C4CC2D0DB for ; Wed, 29 Jan 2020 16:09:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5BBE42071E for ; Wed, 29 Jan 2020 16:09:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Eamuglrt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727024AbgA2QJM (ORCPT ); Wed, 29 Jan 2020 11:09:12 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:46364 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726564AbgA2QJM (ORCPT ); Wed, 29 Jan 2020 11:09:12 -0500 Received: by mail-pg1-f195.google.com with SMTP id z124so9037976pgb.13 for ; Wed, 29 Jan 2020 08:09:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=+oq96d085fk9R1zembWjfCyukhjjIatlVof2J+sNPxs=; b=EamuglrtmZ9uGundx/IPRJmVpL0Y/3ThnGKOVz4Zqb8m1MOH+bYP3fPoP5u8oz49Pn 1Ij0uVWlWzH+x4BHRgxbd/WvXmQvpf1139nKPgvcQwhptH7/kdEQp58OBYTmsNidNqu+ t2BBYY5mNpfr1yt+vHtvAupk/RTbYduLBjxPdP3PIsc4rgg5R1XSPm2TAPcEGkAOASzE kY1PCIFULGkg/YJjrCq9QmJB8D/tSTQv/nAfwwkcDJjKNBiSDRAPmySG9yxlrYhEs4qd uM1e2ZNWjtHQ2PpOvWQBMcJKxfTO350EfYmBRbw1WpRyyTa+cta9B1bu6pubqqsmNGK6 5oVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=+oq96d085fk9R1zembWjfCyukhjjIatlVof2J+sNPxs=; b=PWF1q0Oq4VaeWQSxnS+WykWRwRJjn1JT2tHR6ndhjBK0DoWkWibRCoMl6iFO1esgBZ C52N7kUu55dERpSyVRFAUacOmfeQoRFO2PcEWZAU1s7bOqQQ79MLI1iYsccPIwRn541E IJxUQDYcsIrg9D4SI3X03wl526M6kokrWpDfEDibNWMSoPN8KwMPP7MMYBPvTI/9UL71 +4nKWz1UFtLaLSG5ZWx7r6hzupMTwdeNepxKk/jw2X+sMcRUyKzzWFgiJNuVvSK32hX0 onywIj7ASKaJ128/NFw+xbH/C+GlwSTLWWOHxM54PCuCwB1JjS9TKyqUNQTqrMe9gqdV sxKg== X-Gm-Message-State: APjAAAUdBth0FCu6d99NqpKzfH6TRNF4i17ywTBA71gAvFINbp+Oq1jE zJaUIIY2g6uXFUBy7zPCiuo= X-Google-Smtp-Source: APXvYqyhg/HldHGGdfEgHowy5IgtRURU9SafwhhUwsow9z2iqxxg52P1LutbN5nUIyb+3aqkQpZ/Eg== X-Received: by 2002:a65:5809:: with SMTP id g9mr31259946pgr.146.1580314151330; Wed, 29 Jan 2020 08:09:11 -0800 (PST) Received: from localhost.localdomain ([146.196.37.139]) by smtp.googlemail.com with ESMTPSA id 73sm3258801pgc.13.2020.01.29.08.09.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jan 2020 08:09:10 -0800 (PST) From: Amol Grover To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim Cc: linux-kernel@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, Joel Fernandes , Madhuparna Bhowmik , "Paul E . McKenney" , Amol Grover Subject: [PATCH 1/2] events: callchain: Annotate RCU pointer with __rcu Date: Wed, 29 Jan 2020 21:38:12 +0530 Message-Id: <20200129160813.14263-1-frextrite@gmail.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fixes following instances of sparse error error: incompatible types in comparison expression (different address spaces) kernel/events/callchain.c:66:9: error: incompatible types in comparison kernel/events/callchain.c:96:9: error: incompatible types in comparison kernel/events/callchain.c:161:19: error: incompatible types in comparison This introduces the following warning kernel/events/callchain.c:65:17: warning: incorrect type in assignment Signed-off-by: Amol Grover --- kernel/events/callchain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c index c2b41a263166..f91e1f41d25d 100644 --- a/kernel/events/callchain.c +++ b/kernel/events/callchain.c @@ -32,7 +32,7 @@ static inline size_t perf_callchain_entry__sizeof(void) static DEFINE_PER_CPU(int, callchain_recursion[PERF_NR_CONTEXTS]); static atomic_t nr_callchain_events; static DEFINE_MUTEX(callchain_mutex); -static struct callchain_cpus_entries *callchain_cpus_entries; +static struct callchain_cpus_entries __rcu *callchain_cpus_entries; __weak void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, -- 2.24.1