From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net V1] net/ipv4: Use proper RCU APIs for writer-side in udp_offload.c Date: Tue, 04 Feb 2014 20:03:26 -0800 (PST) Message-ID: <20140204.200326.1370432247105523133.davem@davemloft.net> References: <1391348530-31643-1-git-send-email-ogerlitz@mellanox.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, shlomop@mellanox.com, edumazet@google.com To: ogerlitz@mellanox.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:48756 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750899AbaBEED1 (ORCPT ); Tue, 4 Feb 2014 23:03:27 -0500 In-Reply-To: <1391348530-31643-1-git-send-email-ogerlitz@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Or Gerlitz Date: Sun, 2 Feb 2014 15:42:10 +0200 > From: Shlomo Pongratz > > RCU writer side should use rcu_dereference_protected() and not > rcu_dereference(), fix that. This also removes the "suspicious RCU usage" > warning seen when running with CONFIG_PROVE_RCU. > > Also, don't use rcu_assign_pointer/rcu_dereference for pointers > which are invisible beyond the udp offload code. > > Fixes: b582ef0 ('net: Add GRO support for UDP encapsulating protocols') > Reported-by: Eric Dumazet > Cc: Eric Dumazet > Signed-off-by: Or Gerlitz > Signed-off-by: Shlomo Pongratz Applied, thank you.