[dpdk-dev] [PATCH v2 01/54] ethdev: remove redundunt device info cleanup before get

[Andrew Rybchenko]

rte_eth_dev_info_get() always fills in device information memory
with zeros on entry.

Fixes: b6719879855d ("ethdev: avoid getting uninitialized info for bad port")
Cc: stable at dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
 app/test-pmd/cmdline.c             | 4 ----
 app/test-pmd/config.c              | 2 --
 examples/ethtool/lib/rte_ethtool.c | 2 --
 examples/kni/main.c                | 1 -
 4 files changed, 9 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index b6bc34b..e4dda93 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -2319,7 +2319,6 @@ struct cmd_config_rss_hash_key {
 	uint8_t hash_key_size;
 	uint32_t key_len;
 
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(res->port_id, &dev_info);
 	if (dev_info.hash_key_size > 0 &&
 			dev_info.hash_key_size <= sizeof(hash_key))
@@ -2852,7 +2851,6 @@ struct cmd_config_rss_reta {
 	struct rte_eth_rss_reta_entry64 reta_conf[8];
 	struct cmd_config_rss_reta *res = parsed_result;
 
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(res->port_id, &dev_info);
 	if (dev_info.reta_size == 0) {
 		printf("Redirection table size is 0 which is "
@@ -2972,7 +2970,6 @@ struct cmd_showport_reta {
 	struct rte_eth_dev_info dev_info;
 	uint16_t max_reta_size;
 
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(res->port_id, &dev_info);
 	max_reta_size = RTE_MIN(dev_info.reta_size, ETH_RSS_RETA_SIZE_512);
 	if (res->size == 0 || res->size > max_reta_size) {
@@ -11091,7 +11088,6 @@ struct cmd_flow_director_result {
 		else if (!strncmp(res->pf_vf, "vf", 2)) {
 			struct rte_eth_dev_info dev_info;
 
-			memset(&dev_info, 0, sizeof(dev_info));
 			rte_eth_dev_info_get(res->port_id, &dev_info);
 			errno = 0;
 			vf_id = strtoul(res->pf_vf + 2, &end, 10);
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 1a5a5c1..523b3d3 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -478,7 +478,6 @@ static int bus_match_all(const struct rte_bus *bus, const void *data)
 	}
 	port = &ports[port_id];
 	rte_eth_link_get_nowait(port_id, &link);
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(port_id, &dev_info);
 	printf("\n%s Infos for port %-2d %s\n",
 	       info_border, port_id, info_border);
@@ -1623,7 +1622,6 @@ struct igb_ring_desc_16_bytes {
 #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
 	struct rte_eth_dev_info dev_info;
 
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(port_id, &dev_info);
 	if (strstr(dev_info.driver_name, "i40e") != NULL) {
 		/* 32 bytes RX descriptor, i40e only */
diff --git a/examples/ethtool/lib/rte_ethtool.c b/examples/ethtool/lib/rte_ethtool.c
index 571c4e5..fd1692d 100644
--- a/examples/ethtool/lib/rte_ethtool.c
+++ b/examples/ethtool/lib/rte_ethtool.c
@@ -41,7 +41,6 @@
 		printf("Insufficient fw version buffer size, "
 		       "the minimum size should be %d\n", ret);
 
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(port_id, &dev_info);
 
 	strlcpy(drvinfo->driver, dev_info.driver_name,
@@ -372,7 +371,6 @@
 	struct rte_eth_dev_info dev_info;
 	uint16_t vf;
 
-	memset(&dev_info, 0, sizeof(dev_info));
 	rte_eth_dev_info_get(port_id, &dev_info);
 	num_vfs = dev_info.max_vfs;
 
diff --git a/examples/kni/main.c b/examples/kni/main.c
index 4710d71..17f695e 100644
--- a/examples/kni/main.c
+++ b/examples/kni/main.c
@@ -898,7 +898,6 @@ struct kni_interface_stats {
 			struct rte_kni_ops ops;
 			struct rte_eth_dev_info dev_info;
 
-			memset(&dev_info, 0, sizeof(dev_info));
 			rte_eth_dev_info_get(port_id, &dev_info);
 
 			/* Get the interface default mac address */
-- 
1.8.3.1