From patchwork Thu May 27 23:54:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mat Martineau X-Patchwork-Id: 449302 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 9CBBFC47089 for ; Thu, 27 May 2021 23:55:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7FA66613D4 for ; Thu, 27 May 2021 23:55:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236974AbhE0X4e (ORCPT ); Thu, 27 May 2021 19:56:34 -0400 Received: from mga01.intel.com ([192.55.52.88]:38823 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236705AbhE0X4Q (ORCPT ); Thu, 27 May 2021 19:56:16 -0400 IronPort-SDR: FjC2Xp2f2XICMu3cFMHXn8U3NAKXBxO+ZAQ9El32xrcP1i6zo3h0pI7mxHBi05davwB/MQMyEX R+iQlVmS9DbA== X-IronPort-AV: E=McAfee;i="6200,9189,9997"; a="224079919" X-IronPort-AV: E=Sophos;i="5.83,228,1616482800"; d="scan'208";a="224079919" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 May 2021 16:54:36 -0700 IronPort-SDR: REzDS1hbYzJYnjh3Dv7PZz7AlOEU2/F9TmkYJrBQDz8rdnw+ZyvqHxZzFw9f4AI9HRI0sN21dZ lgb1Vp7Fv+lQ== X-IronPort-AV: E=Sophos;i="5.83,228,1616482800"; d="scan'208";a="443774250" Received: from mjmartin-desk2.amr.corp.intel.com (HELO mjmartin-desk2.intel.com) ([10.209.84.136]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 May 2021 16:54:36 -0700 From: Mat Martineau To: netdev@vger.kernel.org Cc: Jianguo Wu , davem@davemloft.net, kuba@kernel.org, matthieu.baerts@tessares.net, mptcp@lists.linux.dev, Paolo Abeni , Mat Martineau Subject: [PATCH net-next 1/7] mptcp: fix pr_debug in mptcp_token_new_connect Date: Thu, 27 May 2021 16:54:24 -0700 Message-Id: <20210527235430.183465-2-mathew.j.martineau@linux.intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210527235430.183465-1-mathew.j.martineau@linux.intel.com> References: <20210527235430.183465-1-mathew.j.martineau@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jianguo Wu After commit 2c5ebd001d4f ("mptcp: refactor token container"), pr_debug() is called before mptcp_crypto_key_gen_sha() in mptcp_token_new_connect(), so the output local_key, token and idsn are 0, like: MPTCP: ssk=00000000f6b3c4a2, local_key=0, token=0, idsn=0 Move pr_debug() after mptcp_crypto_key_gen_sha(). Fixes: 2c5ebd001d4f ("mptcp: refactor token container") Acked-by: Paolo Abeni Signed-off-by: Jianguo Wu Signed-off-by: Mat Martineau --- net/mptcp/token.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/mptcp/token.c b/net/mptcp/token.c index 8f0270a780ce..72a24e63b131 100644 --- a/net/mptcp/token.c +++ b/net/mptcp/token.c @@ -156,9 +156,6 @@ int mptcp_token_new_connect(struct sock *sk) int retries = TOKEN_MAX_RETRIES; struct token_bucket *bucket; - pr_debug("ssk=%p, local_key=%llu, token=%u, idsn=%llu\n", - sk, subflow->local_key, subflow->token, subflow->idsn); - again: mptcp_crypto_key_gen_sha(&subflow->local_key, &subflow->token, &subflow->idsn); @@ -172,6 +169,9 @@ int mptcp_token_new_connect(struct sock *sk) goto again; } + pr_debug("ssk=%p, local_key=%llu, token=%u, idsn=%llu\n", + sk, subflow->local_key, subflow->token, subflow->idsn); + WRITE_ONCE(msk->token, subflow->token); __sk_nulls_add_node_rcu((struct sock *)msk, &bucket->msk_chain); bucket->chain_len++;