[dpdk-stable] [PATCH 1/2] eventdev: fix eth Rx adapter hotplug incompatibility

[Nikhil Rao]

Use RTE_MAX_ETHPORTS instead of rte_eth_dev_count_total()
when allocating eth Rx adapter's per-eth device data structure
to account for hotplugged devices.

Fixes: 9c38b704d280 ("eventdev: add eth Rx adapter implementation")
Cc: stable at dpdk.org
Signed-off-by: Nikhil Rao <nikhil.rao at intel.com>
---
 lib/librte_eventdev/rte_event_eth_rx_adapter.c | 5 ++---
 lib/librte_eventdev/rte_event_eth_rx_adapter.h | 4 ----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
index f5e5a0b..870ac8c 100644
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
@@ -1998,8 +1998,7 @@ static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
 	rx_adapter->id = id;
 	strcpy(rx_adapter->mem_name, mem_name);
 	rx_adapter->eth_devices = rte_zmalloc_socket(rx_adapter->mem_name,
-					/* FIXME: incompatible with hotplug */
-					rte_eth_dev_count_total() *
+					RTE_MAX_ETHPORTS *
 					sizeof(struct eth_device_info), 0,
 					socket_id);
 	rte_convert_rss_key((const uint32_t *)default_rss_key,
@@ -2012,7 +2011,7 @@ static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
 		return -ENOMEM;
 	}
 	rte_spinlock_init(&rx_adapter->rx_lock);
-	RTE_ETH_FOREACH_DEV(i)
+	for (i = 0; i < RTE_MAX_ETHPORTS; i++)
 		rx_adapter->eth_devices[i].dev = &rte_eth_devices[i];
 
 	event_eth_rx_adapter[id] = rx_adapter;
diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.h b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
index 332ee21..863b72a 100644
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.h
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
@@ -76,10 +76,6 @@
  * rte_event_eth_rx_adapter_cb_register() function allows the
  * application to register a callback that selects which packets to enqueue
  * to the event device.
- *
- * Note:
- * 1) Devices created after an instance of rte_event_eth_rx_adapter_create
- *  should be added to a new instance of the rx adapter.
  */
 
 #ifdef __cplusplus
-- 
1.8.3.1