From: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Date: Wed, 19 Dec 2018 06:45:37 -0800
Subject: i40e: Limiting RSS queues to CPUs
Patch-mainline: v5.1-rc1
Git-commit: 3647cd6eaf83d7f6145a3ccac73f5286496490d2
References: jsc#SLE-4797

Limiting RSS queues number to online CPUs number in order to
avoid issues with creating misconfigured RSS queues.

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11070,6 +11070,7 @@ int i40e_reconfig_rss_queues(struct i40e
 	if (!(pf->flags & I40E_FLAG_RSS_ENABLED))
 		return 0;
 
+	queue_count = min_t(int, queue_count, num_online_cpus());
 	new_rss_size = min_t(int, queue_count, pf->rss_size_max);
 
 	if (queue_count != vsi->num_queue_pairs) {