0027-net-ena-fix-build-for-O1-optimization.patch

From 198c105b25519ca4eb65b8c6c0c54cdb8e4c238a Mon Sep 17 00:00:00 2001
From: Ferruh Yigit <ferruh.yigit@intel.com>
Date: Mon, 11 May 2020 17:07:24 +0100
Subject: [PATCH 27/27] net/ena: fix build for O1 optimization
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[ upstream commit 5f267cb01b41def2af37b8fa56828e75ae91add0 ]

Can be reproduced with "make EXTRA_CFLAGS='-O1'" command using
gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2)

Build error:
.../drivers/net/ena/ena_ethdev.c: In function ‘eth_ena_dev_init’:
.../drivers/net/ena/ena_ethdev.c:1815:20:
    error: ‘wd_state’ may be used uninitialized in this function
           [-Werror=maybe-uninitialized]
 1815 |  adapter->wd_state = wd_state;
      |  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~

This looks like false positive, fixing by assigning initial value to
'wd_state' variable.

Change-Id: I68bd21d4e2a4b41466e670e282856d4f072dadc0
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
---
 drivers/net/ena/ena_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 31a768eceb..aa20c7f8c1 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1519,7 +1519,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 	u16 tx_sgl_size = 0;
 
 	static int adapters_found;
-	bool wd_state;
+	bool wd_state = false;
 
 	eth_dev->dev_ops = &ena_dev_ops;
 	eth_dev->rx_pkt_burst = &eth_ena_recv_pkts;
-- 
2.20.1