From: Alex Barba <alex.barba@broadcom.com>
Date: Thu, 3 Nov 2022 19:33:27 -0400
Subject: bnxt_en: fix potentially incorrect return value for ndo_rx_flow_steer
Patch-mainline: v6.1-rc5
Git-commit: 02597d39145bb0aa81d04bf39b6a913ce9a9d465
References: git-fixes

In the bnxt_en driver ndo_rx_flow_steer returns '0' whenever an entry
that we are attempting to steer is already found.  This is not the
correct behavior.  The return code should be the value/index that
corresponds to the entry.  Returning zero all the time causes the
RFS records to be incorrect unless entry '0' is the correct one.  As
flows migrate to different cores this can create entries that are not
correct.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Reported-by: Akshay Navgire <anavgire@purestorage.com>
Signed-off-by: Alex Barba <alex.barba@broadcom.com>
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -12676,8 +12676,8 @@ static int bnxt_rx_flow_steer(struct net
 	rcu_read_lock();
 	hlist_for_each_entry_rcu(fltr, head, hash) {
 		if (bnxt_fltr_match(fltr, new_fltr)) {
+			rc = fltr->sw_id;
 			rcu_read_unlock();
-			rc = 0;
 			goto err_free;
 		}
 	}