From patchwork Thu Mar 19 12:46:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yue Haibing X-Patchwork-Id: 1258184 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.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=bpf-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48jmrT3Mvvz9sPR for ; Thu, 19 Mar 2020 23:47:05 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726934AbgCSMrE (ORCPT ); Thu, 19 Mar 2020 08:47:04 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:12102 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726589AbgCSMrE (ORCPT ); Thu, 19 Mar 2020 08:47:04 -0400 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 9810353EC2277E87DC44; Thu, 19 Mar 2020 20:46:57 +0800 (CST) Received: from localhost (10.173.223.234) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.487.0; Thu, 19 Mar 2020 20:46:51 +0800 From: YueHaibing To: , , , CC: , , , , YueHaibing Subject: [PATCH bpf-next] bpf: tcp: Fix unused function warnings Date: Thu, 19 Mar 2020 20:46:31 +0800 Message-ID: <20200319124631.58432-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.173.223.234] X-CFilter-Loop: Reflected Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org If BPF_STREAM_PARSER is not set, gcc warns: net/ipv4/tcp_bpf.c:483:12: warning: 'tcp_bpf_sendpage' defined but not used [-Wunused-function] net/ipv4/tcp_bpf.c:395:12: warning: 'tcp_bpf_sendmsg' defined but not used [-Wunused-function] net/ipv4/tcp_bpf.c:13:13: warning: 'tcp_bpf_stream_read' defined but not used [-Wunused-function] Moves the unused functions into the #ifdef Reported-by: Hulk Robot Signed-off-by: YueHaibing Reviewed-by: Lorenz Bauer Reviewed-by: Jakub Sitnicki --- net/ipv4/tcp_bpf.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c index fe7b4fbc31c1..37c91f25cae3 100644 --- a/net/ipv4/tcp_bpf.c +++ b/net/ipv4/tcp_bpf.c @@ -10,19 +10,6 @@ #include #include -static bool tcp_bpf_stream_read(const struct sock *sk) -{ - struct sk_psock *psock; - bool empty = true; - - rcu_read_lock(); - psock = sk_psock(sk); - if (likely(psock)) - empty = list_empty(&psock->ingress_msg); - rcu_read_unlock(); - return !empty; -} - static int tcp_bpf_wait_data(struct sock *sk, struct sk_psock *psock, int flags, long timeo, int *err) { @@ -298,6 +285,20 @@ int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg, } EXPORT_SYMBOL_GPL(tcp_bpf_sendmsg_redir); +#ifdef CONFIG_BPF_STREAM_PARSER +static bool tcp_bpf_stream_read(const struct sock *sk) +{ + struct sk_psock *psock; + bool empty = true; + + rcu_read_lock(); + psock = sk_psock(sk); + if (likely(psock)) + empty = list_empty(&psock->ingress_msg); + rcu_read_unlock(); + return !empty; +} + static int tcp_bpf_send_verdict(struct sock *sk, struct sk_psock *psock, struct sk_msg *msg, int *copied, int flags) { @@ -528,7 +529,6 @@ static int tcp_bpf_sendpage(struct sock *sk, struct page *page, int offset, return copied ? copied : err; } -#ifdef CONFIG_BPF_STREAM_PARSER enum { TCP_BPF_IPV4, TCP_BPF_IPV6,