From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Date: Fri, 26 Jan 2018 17:05:54 +0530
Subject: cxgb4: reset FW_OK flag on firmware crash
Patch-mainline: v4.16-rc1
Git-commit: 825b2b6fd949b0042f3793daafa59b742c9e9d7a
References: bsc#1104279 FATE#325938

If firmware reports error, reset FW_OK flag.

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 |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -195,9 +195,11 @@ static void t4_report_fw_error(struct ad
 	u32 pcie_fw;
 
 	pcie_fw = t4_read_reg(adap, PCIE_FW_A);
-	if (pcie_fw & PCIE_FW_ERR_F)
+	if (pcie_fw & PCIE_FW_ERR_F) {
 		dev_err(adap->pdev_dev, "Firmware reports adapter error: %s\n",
 			reason[PCIE_FW_EVAL_G(pcie_fw)]);
+		adap->flags &= ~FW_OK;
+	}
 }
 
 /*