From patchwork Mon Nov 13 10:45:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134140 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 95515430AB; Mon, 13 Nov 2023 11:51:52 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id A60D440A8A; Mon, 13 Nov 2023 11:51:05 +0100 (CET) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id 239F34064C for ; Mon, 13 Nov 2023 11:51:00 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4STR6X2bmHzvQbl for ; Mon, 13 Nov 2023 18:50:44 +0800 (CST) Received: from localhost.localdomain (10.67.165.2) by kwepemd100004.china.huawei.com (7.221.188.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.1258.23; Mon, 13 Nov 2023 18:50:58 +0800 From: Jie Hai To: , Chengwen Feng , Kevin Laatz , Bruce Richardson CC: , Subject: [PATCH 09/21] lib/dmadev: replace strtok with strtok_r Date: Mon, 13 Nov 2023 18:45:38 +0800 Message-ID: <20231113104550.2138654-10-haijie1@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20231113104550.2138654-1-haijie1@huawei.com> References: <20231113104550.2138654-1-haijie1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.2] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemd100004.china.huawei.com (7.221.188.31) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Multiple threads calling the same function may cause condition race issues, which often leads to abnormal behavior and can cause more serious vulnerabilities such as abnormal termination, denial of service, and compromised data integrity. The strtok() is non-reentrant, it is better to replace it with a reentrant function. Signed-off-by: Jie Hai --- lib/dmadev/rte_dmadev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/dmadev/rte_dmadev.c b/lib/dmadev/rte_dmadev.c index 4e5e420c82a5..f856cc7d0905 100644 --- a/lib/dmadev/rte_dmadev.c +++ b/lib/dmadev/rte_dmadev.c @@ -971,7 +971,7 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused, struct rte_dma_info dma_info; struct rte_dma_stats dma_stats; int dev_id, ret, vchan_id; - char *end_param; + char *end_param, *sp = NULL; const char *vchan_param; if (params == NULL || strlen(params) == 0 || !isdigit(*params)) @@ -990,7 +990,7 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused, if (dma_info.nb_vchans == 1 && *end_param == '\0') vchan_id = 0; else { - vchan_param = strtok(end_param, ","); + vchan_param = strtok_r(end_param, ",", &sp); if (!vchan_param || strlen(vchan_param) == 0 || !isdigit(*vchan_param)) return -EINVAL;