From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>
Cc: <thomas@monjalon.net>, <ferruh.yigit@intel.com>,
<andrew.rybchenko@oktetlabs.ru>, <jerry.lilijun@huawei.com>,
<xudingke@huawei.com>, Yunjian Wang <wangyunjian@huawei.com>,
<stable@dpdk.org>
Subject: [dpdk-stable] [dpdk-dev] [PATCH v2] ethdev: fix data type for port id
Date: Tue, 27 Oct 2020 21:41:22 +0800 [thread overview]
Message-ID: <1603806082-21484-1-git-send-email-wangyunjian@huawei.com> (raw)
In-Reply-To: <e17cf818a98e4dd5109acacd8c2bd754a0c1abda.1603713753.git.wangyunjian@huawei.com>
From: Yunjian Wang <wangyunjian@huawei.com>
The ethdev port id should be 16 bits now. This patch fixes the data
type of the variable for 'pid', changing from uint32_t to uint16_t.
We also need use RTE_BUILD_BUG_ON() to ensure that RTE_MAX_ETHPORTS
is less or equal to UINT16_MAX.
Fixes: 5b7ba31148a8 ("ethdev: add port ownership")
Cc: stable@dpdk.org
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
v2:
add RTE_BUILD_BUG_ON() check for RTE_MAX_ETHPORTS validity
---
lib/librte_ethdev/rte_ethdev.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index b12bb3854d..ecaca5c600 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -816,7 +816,7 @@ rte_eth_dev_get_name_by_port(uint16_t port_id, char *name)
int
rte_eth_dev_get_port_by_name(const char *name, uint16_t *port_id)
{
- uint32_t pid;
+ uint16_t pid;
if (name == NULL) {
RTE_ETHDEV_LOG(ERR, "Null pointer is specified\n");
@@ -4292,6 +4292,8 @@ RTE_INIT(eth_dev_init_cb_lists)
{
int i;
+ RTE_BUILD_BUG_ON(RTE_MAX_ETHPORTS > UINT16_MAX);
+
for (i = 0; i < RTE_MAX_ETHPORTS; i++)
TAILQ_INIT(&rte_eth_devices[i].link_intr_cbs);
}
--
2.23.0
next prev parent reply other threads:[~2020-10-27 13:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 12:24 [dpdk-stable] [dpdk-dev] [PATCH] " wangyunjian
2020-10-26 12:29 ` Andrew Rybchenko
2020-10-27 13:41 ` wangyunjian [this message]
2020-10-27 14:29 ` [dpdk-stable] [dpdk-dev] [PATCH v2] " Thomas Monjalon
2020-10-29 12:18 ` wangyunjian
2020-10-29 12:40 ` Andrew Rybchenko
2020-10-29 12:43 ` Thomas Monjalon
2020-11-02 9:18 ` [dpdk-stable] [dpdk-dev] [PATCH v3] " wangyunjian
2020-11-03 18:44 ` Thomas Monjalon
2020-11-03 23:42 ` Stephen Hemminger
2020-11-04 1:57 ` wangyunjian
2020-11-04 2:57 ` [dpdk-stable] [dpdk-dev] [PATCH v4] " wangyunjian
2020-11-04 3:26 ` Ajit Khaparde
2020-11-04 11:46 ` Ferruh Yigit
2020-11-04 13:49 ` Ferruh Yigit
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