linux-kernel - [PATCH 4.9 030/241] drivers: net: xgene: Fix wrong logical operation

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Date:   Mon, 19 Mar 2018 19:04:55 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Iyappan Subramanian <isubramanian@....com>,
        Quan Nguyen <qnguyen@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.9 030/241] drivers: net: xgene: Fix wrong logical operation

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Quan Nguyen <qnguyen@....com>


[ Upstream commit 11623fce0f9afef30c45e3f2120b063de3809a8f ]

This patch fixes the wrong logical OR operation by changing it to
bit-wise OR operation.

Fixes: 3bb502f83080 ("drivers: net: xgene: fix statistics counters race condition")
Signed-off-by: Iyappan Subramanian <isubramanian@....com>
Signed-off-by: Quan Nguyen <qnguyen@....com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/apm/xgene/xgene_enet_main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -537,9 +537,9 @@ static int xgene_enet_rx_frame(struct xg
 	buf_pool->rx_skb[skb_index] = NULL;
 
 	/* checking for error */
-	status = (GET_VAL(ELERR, le64_to_cpu(raw_desc->m0)) << LERR_LEN) ||
+	status = (GET_VAL(ELERR, le64_to_cpu(raw_desc->m0)) << LERR_LEN) |
 		  GET_VAL(LERR, le64_to_cpu(raw_desc->m0));
-	if (unlikely(status > 2)) {
+	if (unlikely(status)) {
 		dev_kfree_skb_any(skb);
 		xgene_enet_parse_error(rx_ring, netdev_priv(rx_ring->ndev),
 				       status);