From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Date: Fri, 26 Jan 2018 17:05:55 +0530
Subject: cxgb4: fix incorrect condition for using firmware LDST commands
Patch-mainline: v4.16-rc1
Git-commit: ebb5568fe27794cdcf18c8d9dc6b80dae98d79ec
References: bsc#1104279 FATE#325938

Only contact firmware if it's alive _AND_ if use_bd (use backdoor
access) is not set when issuing FW_LDST_CMD.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -5090,7 +5090,7 @@ int t4_read_rss(struct adapter *adapter,
 
 static unsigned int t4_use_ldst(struct adapter *adap)
 {
-	return (adap->flags & FW_OK) || !adap->use_bd;
+	return (adap->flags & FW_OK) && !adap->use_bd;
 }
 
 /**