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=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=no 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 5B90AC32750 for ; Wed, 14 Aug 2019 00:36:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2A8A120843 for ; Wed, 14 Aug 2019 00:36:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="agaAlbCO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726780AbfHNAgC (ORCPT ); Tue, 13 Aug 2019 20:36:02 -0400 Received: from mail-pg1-f202.google.com ([209.85.215.202]:35522 "EHLO mail-pg1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726316AbfHNAgB (ORCPT ); Tue, 13 Aug 2019 20:36:01 -0400 Received: by mail-pg1-f202.google.com with SMTP id q1so11776848pgt.2 for ; Tue, 13 Aug 2019 17:36:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=Cu+36JF78r6qebD+fzAIMoP3auw3DHa5JgHDYnbOQS4=; b=agaAlbCOXwpWZ1rEpbIgzA1nhq8apU3jhz4rB11Ox7zK2Akab4jmWCwf1eFEYcSdqk 6vSzssiCyk0/Re2v8sDIDWJ0TNqu3TPrBbrYEhpamBw7VPCYw0DtfRLzMGPGZ3ryAuIY +qHlW4a7XJ9GTFQfBxavwd5WnKw8JvZ+DRo4ZAw1+MRqM6Zpxjwrt8YWX1/zQBy8AeXw N8cmA2+as9UuCYoxAgtnQ7vA8hs3USlmTxaGwekpWHOaWHSMUJ8nqvq5B1nzDcS1y1kD OjjMABjUm1UW60sNRsPCd+Rrebhhd9kq7lHrLZbpzG36YubdO0UzANYILQCGIsskE5Ud R7uQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=Cu+36JF78r6qebD+fzAIMoP3auw3DHa5JgHDYnbOQS4=; b=j8yQOH6Rl2zF+7WkDiJAVJfL0Xb2TYLav1sCJ0ph7OvOJLZODFREQ8I0F9O2k3miRA ilMWOlj6AdboBwZCGXyDmo/x8rohw21h8vV1Mc/ne7sZ4GAyzjtCFH8DKSOAxanGw1yX KKksdIjseePHjPWOKZTbVfyhUcnWirpLpeKpmTiJ51f+xQ4e0P7MwfSP8mYmDBEE9NXj OHsK7zt3ID+tgzTjtvTBSX0IDEigrEBZ/E9JzhCsUI9gs03FH5nGCw6AhR551ZbHi3ZA BLO0olKDy4pO0o3ciXf/wh3qlCQ/hVJxBoRCWPbct40F0iG7JSwbCNeIoFB4fPqXV9/i 5FgA== X-Gm-Message-State: APjAAAWRmfiKm2OWhTidpDLjIdl2rOaZkzZYXmusKSmxKzPGaeaTU+pB rc5V46Segv1UlztUkOrQIMZqnPLIJw== X-Google-Smtp-Source: APXvYqx9gRONA4IxsGp99a+6zL2GKJFiLbvPKafeGJacjMPJ8nB+SZ7n6psXm+8vxgexYBchbRllgwxBVdM= X-Received: by 2002:a63:5f01:: with SMTP id t1mr9981095pgb.200.1565742960704; Tue, 13 Aug 2019 17:36:00 -0700 (PDT) Date: Tue, 13 Aug 2019 17:35:57 -0700 In-Reply-To: Message-Id: <20190814003557.97004-1-yabinc@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.23.0.rc1.153.gdeed80330f-goog Subject: Re: [PATCH v3] coresight: Serialize enabling/disabling a link device. From: Yabin Cui To: Mathieu Poirier , Suzuki K Poulose , Alexander Shishkin Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yabin Cui Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > The patch isn't difficult to do but does go deeper in each link > drivers (ETF, funnel, replicator). Let me know if you are not > comfortable with the idea and I will see what I can do on my side. I am comfortable with the idea. I chose to add lock in coresight_enable_link() just because it is the smallest change. But a refactor probably is better for maintainance. Feel free to upload a new patch fixing the problem. I can help to test it.