[dpdk-dev] [PATCH v4 4/8] net/netvsc: fix invalid rte_free on dev_close
From: Stephen Hemminger <stephen@networkplumber.org>
Date: 2020-03-31 17:15:00
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The netvsc PMD was putting the mac address in private data but the
core rte_ethdev doesn't allow that it. It has to be in rte_malloc'd
memory or the a message will be printed on shutdown/close.
EAL: Invalid memory
Fixes: f8279f47dd89 ("net/netvsc: fix crash in secondary process")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/netvsc/hn_ethdev.c | 16 ++++++++++------
drivers/net/netvsc/hn_var.h | 2 --
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/net/netvsc/hn_ethdev.c b/drivers/net/netvsc/hn_ethdev.c
index ac6610838008..05f1a25a1abc 100644
--- a/drivers/net/netvsc/hn_ethdev.c
+++ b/drivers/net/netvsc/hn_ethdev.c@@ -134,8 +134,6 @@ eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) static void eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) { - /* mac_addrs must not be freed alone because part of dev_private */ - eth_dev->data->mac_addrs = NULL; /* free ether device */ rte_eth_dev_release_port(eth_dev);
@@ -937,9 +935,6 @@ eth_hn_dev_init(struct rte_eth_dev *eth_dev) eth_dev->tx_pkt_burst = &hn_xmit_pkts; eth_dev->rx_pkt_burst = &hn_recv_pkts; - /* Since Hyper-V only supports one MAC address, just use local data */ - eth_dev->data->mac_addrs = &hv->mac_addr; - /* * for secondary processes, we don't initialize any further as primary * has already done this work.
@@ -947,6 +942,15 @@ eth_hn_dev_init(struct rte_eth_dev *eth_dev) if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; + /* Since Hyper-V only supports one MAC address */ + eth_dev->data->mac_addrs = rte_calloc("hv_mac", HN_MAX_MAC_ADDRS, + sizeof(struct rte_ether_addr), 0); + if (eth_dev->data->mac_addrs == NULL) { + PMD_INIT_LOG(ERR, + "Failed to allocate memory store MAC addresses"); + return -ENOMEM; + } + hv->vmbus = vmbus; hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP];
@@ -989,7 +993,7 @@ eth_hn_dev_init(struct rte_eth_dev *eth_dev) if (err) goto failed; - err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); + err = hn_rndis_get_eaddr(hv, eth_dev->data->mac_addrs->addr_bytes); if (err) goto failed;
diff --git a/drivers/net/netvsc/hn_var.h b/drivers/net/netvsc/hn_var.h
index 822d737bd3cc..b4c61717379f 100644
--- a/drivers/net/netvsc/hn_var.h
+++ b/drivers/net/netvsc/hn_var.h@@ -139,8 +139,6 @@ struct hn_data { uint8_t rss_key[40]; uint16_t rss_ind[128]; - struct rte_ether_addr mac_addr; - struct rte_eth_dev_owner owner; struct rte_intr_handle vf_intr;
--
2.20.1