From patchwork Fri Feb 21 16:24:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Madhuparna Bhowmik X-Patchwork-Id: 1242210 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=V49ASkJ+; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48PH0k3plBz9sSH for ; Sat, 22 Feb 2020 03:27:02 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726788AbgBUQ06 (ORCPT ); Fri, 21 Feb 2020 11:26:58 -0500 Received: from mail-pj1-f65.google.com ([209.85.216.65]:34884 "EHLO mail-pj1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726342AbgBUQ06 (ORCPT ); Fri, 21 Feb 2020 11:26:58 -0500 Received: by mail-pj1-f65.google.com with SMTP id q39so973512pjc.0; Fri, 21 Feb 2020 08:26:58 -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; bh=yAiMcPC8Fsdh3sF/o6bSGnkKQ3Dm47KWIMRyu7ofJ5A=; b=V49ASkJ+RyKiTpOQYTvgubqkotfVDwDU7UL+/N/g32CniyMwH3T4QowQc449sGC7+1 VQ3V4Oo2ThQ/6dfjndNgZvhFQScyYw32BkolMuZiziwg6BwTU16kt0rG5+taJ12oHxDY 8t19kXJuIKEhuzjkx3djfELiYCAYfoBwKC0CQ7qQ+yOtaBuxk+E4iD5K5oTvv2wbCLaL shq37+h+AG/s4gJxHOd+gWbL8cLDGkZXoJtBiJxuVQE5S9L0+aP5+adnA/+3E35LEcI1 smTgNhnSWMFCIQ0WRXi4xYVMRov+K3osVzVWe7M05zE1N1IEZz/MLPTM6ikkp3yOGZFn LE2w== 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; bh=yAiMcPC8Fsdh3sF/o6bSGnkKQ3Dm47KWIMRyu7ofJ5A=; b=fZepcdFCM2UZ55S6QvfxXEeVkEls+iKaxeLW66fCDnx83/6Y8yXLqlbMIco0p99GBg fbNMfTzP+0Y/fWMgTwBtnLsitqkYfK2UULeoA6FK3YL+X1e9D/bjaxtWb7/82MgYBwib 4lRm8b4sYU+8tz9pwuFAckoS7iXYyv6ODFVHBwSlXXjsiXjSkUm21zgRzL8/mA7b8F8R 0/j4/3rbYmYKAHidMdJIdZbyNi4JCQm9mb3CdqUfEfD9PJvY88lda8ZCN8XYoheuFFK/ iZd4rPZ0eZkBusjN3P8OwkblNG5qqusq5EjksS4+Y2zXwgdFY/W5sTN+sUgDee0VjVMP sBSA== X-Gm-Message-State: APjAAAXNaqiFtHwVuTJCOLV1A6W2JVvsecSboorMiBlAt77nsxf13N5q CE8/2uvya2TrBcJeMBEaaQ== X-Google-Smtp-Source: APXvYqy6cPZ/Deoo2WCfAKDgesbS0VH8ghs5Q6eG52JEhqfDqVaOB3BBP8C8Don0YjxornSvQzSDIQ== X-Received: by 2002:a17:90a:9b88:: with SMTP id g8mr4025235pjp.72.1582302417855; Fri, 21 Feb 2020 08:26:57 -0800 (PST) Received: from madhuparna-HP-Notebook.nitk.ac.in ([112.79.48.60]) by smtp.gmail.com with ESMTPSA id r8sm3031402pjo.22.2020.02.21.08.26.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Feb 2020 08:26:56 -0800 (PST) From: madhuparnabhowmik10@gmail.com To: steffen.klassert@secunet.com, herbert@gondor.apana.org.au, davem@davemloft.net, kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, joel@joelfernandes.org, frextrite@gmail.com, linux-kernel-mentees@lists.linuxfoundation.org, paulmck@kernel.org, Madhuparna Bhowmik Subject: [PATCH] ipv6: xfrm6_tunnel.c: Use built-in RCU list checking Date: Fri, 21 Feb 2020 21:54:47 +0530 Message-Id: <20200221162447.23998-1-madhuparnabhowmik10@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Madhuparna Bhowmik hlist_for_each_entry_rcu() has built-in RCU and lock checking. Pass cond argument to list_for_each_entry_rcu() to silence false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled by default. Signed-off-by: Madhuparna Bhowmik --- net/ipv6/xfrm6_tunnel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index e11bdb0aaa15..25b7ebda2fab 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -78,7 +78,7 @@ static struct xfrm6_tunnel_spi *__xfrm6_tunnel_spi_lookup(struct net *net, const hlist_for_each_entry_rcu(x6spi, &xfrm6_tn->spi_byaddr[xfrm6_tunnel_spi_hash_byaddr(saddr)], - list_byaddr) { + list_byaddr, lockdep_is_held(&xfrm6_tunnel_spi_lock)) { if (xfrm6_addr_equal(&x6spi->addr, saddr)) return x6spi; }