From patchwork Mon Nov 13 10:45:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134146 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 B445E430AB; Mon, 13 Nov 2023 11:52:27 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id C37A040E72; Mon, 13 Nov 2023 11:51:12 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 340D940A75 for ; Mon, 13 Nov 2023 11:51:03 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4STR6T6Z6tzWh6l; Mon, 13 Nov 2023 18:50:41 +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 18:51:01 +0800 From: Jie Hai To: , Hemant Agrawal , Sachin Saxena CC: , , Subject: [PATCH 15/21] bus/fslmc: replace strtok with strtok_r Date: Mon, 13 Nov 2023 18:45:44 +0800 Message-ID: <20231113104550.2138654-16-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 Acked-by: Sachin Saxena --- drivers/bus/fslmc/fslmc_bus.c | 5 +++-- drivers/bus/fslmc/portal/dpaa2_hw_dpio.c | 4 ++-- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c index 57bfb5111a97..7960ad3979ef 100644 --- a/drivers/bus/fslmc/fslmc_bus.c +++ b/drivers/bus/fslmc/fslmc_bus.c @@ -131,6 +131,7 @@ scan_one_fslmc_device(char *dev_name) { char *dup_dev_name, *t_ptr; struct rte_dpaa2_device *dev = NULL; + char *sp = NULL; int ret = -1; if (!dev_name) @@ -168,7 +169,7 @@ scan_one_fslmc_device(char *dev_name) } /* Parse the device name and ID */ - t_ptr = strtok(dup_dev_name, "."); + t_ptr = strtok_r(dup_dev_name, ".", &sp); if (!t_ptr) { DPAA2_BUS_ERR("Invalid device found: (%s)", dup_dev_name); ret = -EINVAL; @@ -199,7 +200,7 @@ scan_one_fslmc_device(char *dev_name) else dev->dev_type = DPAA2_UNKNOWN; - t_ptr = strtok(NULL, "."); + t_ptr = strtok_r(NULL, ".", &sp); if (!t_ptr) { DPAA2_BUS_ERR("Skipping invalid device (%s)", dup_dev_name); ret = 0; diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c index 4aec7b2cd8ba..09a1a2b23787 100644 --- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c +++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c @@ -129,7 +129,7 @@ dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id, int cpu_id) uint32_t cpu_mask = 1; int ret; size_t len = 0; - char *temp = NULL, *token = NULL; + char *temp = NULL, *token = NULL, *sp = NULL; char string[STRING_LEN], command[COMMAND_LEN]; FILE *file; @@ -141,7 +141,7 @@ dpaa2_affine_dpio_intr_to_respective_core(int32_t dpio_id, int cpu_id) } while (getline(&temp, &len, file) != -1) { if ((strstr(temp, string)) != NULL) { - token = strtok(temp, ":"); + token = strtok_r(temp, ":", &sp); break; } }