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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 05F78C73C63 for ; Wed, 10 Jul 2019 01:51:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC38420651 for ; Wed, 10 Jul 2019 01:51:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726002AbfGJBv1 (ORCPT ); Tue, 9 Jul 2019 21:51:27 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:45100 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725807AbfGJBv1 (ORCPT ); Tue, 9 Jul 2019 21:51:27 -0400 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 48FCA33D463FEB7EBE02; Wed, 10 Jul 2019 09:51:24 +0800 (CST) Received: from localhost (10.133.213.239) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.439.0; Wed, 10 Jul 2019 09:51:18 +0800 From: YueHaibing To: , , CC: , , YueHaibing Subject: [PATCH] RDMA/siw: Print error code while kthread_create failed Date: Wed, 10 Jul 2019 09:50:09 +0800 Message-ID: <20190710015009.57120-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.133.213.239] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In iw_create_tx_threads(), if we failed to create kthread, we should print the 'rv', this fix gcc warning: drivers/infiniband/sw/siw/siw_main.c: In function 'siw_create_tx_threads': drivers/infiniband/sw/siw/siw_main.c:91:11: warning: variable 'rv' set but not used [-Wunused-but-set-variable] Reported-by: Hulk Robot Signed-off-by: YueHaibing --- drivers/infiniband/sw/siw/siw_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c index fd2552a..2a70830d 100644 --- a/drivers/infiniband/sw/siw/siw_main.c +++ b/drivers/infiniband/sw/siw/siw_main.c @@ -101,7 +101,8 @@ static int siw_create_tx_threads(void) if (IS_ERR(siw_tx_thread[cpu])) { rv = PTR_ERR(siw_tx_thread[cpu]); siw_tx_thread[cpu] = NULL; - pr_info("Creating TX thread for CPU %d failed", cpu); + pr_info("Creating TX thread for CPU%d failed %d\n", + cpu, rv); continue; } kthread_bind(siw_tx_thread[cpu], cpu); -- 2.7.4