From: Sameeh Jubran <sameehj@amazon.com>
Date: Wed, 1 May 2019 16:47:06 +0300
Subject: net: ena: fix incorrect test of supported hash function
Patch-mainline: v5.2-rc1
Git-commit: d3cfe7ddbc3dfbb9b201615b7fef8fd66d1b5fe8
References: bsc#1138879 bsc#1139020 bsc#1139021

ena_com_set_hash_function() tests if a hash function is supported
by the device before setting it.
The test returns the opposite result than needed.
Reverse the condition to return the correct value.
Also use the BIT macro instead of inline shift.

Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/amazon/ena/ena_com.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -2195,7 +2195,7 @@ int ena_com_set_hash_function(struct ena
 	if (unlikely(ret))
 		return ret;
 
-	if (get_resp.u.flow_hash_func.supported_func & (1 << rss->hash_func)) {
+	if (!(get_resp.u.flow_hash_func.supported_func & BIT(rss->hash_func))) {
 		pr_err("Func hash %d isn't supported by device, abort\n",
 		       rss->hash_func);
 		return -EOPNOTSUPP;