netdev - [PATCH -next] octeontx2-pf: Fix unused variable build error

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Date:   Mon, 19 Sep 2022 10:58:40 +0800
From:   Ren Zhijie <renzhijie2@...wei.com>
To:     <sgoutham@...vell.com>, <gakula@...vell.com>,
        <sbhatta@...vell.com>, <hkelam@...vell.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <sumang@...vell.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Ren Zhijie <renzhijie2@...wei.com>
Subject: [PATCH -next] octeontx2-pf: Fix unused variable build error

If CONFIG_DCB is not set,
make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu-,
will be failed, like this:

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c: In function ‘otx2_select_queue’:
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c:1886:19: error: unused variable ‘pf’ [-Werror=unused-variable]
  struct otx2_nic *pf = netdev_priv(netdev);
                   ^~
cc1: all warnings being treated as errors

To fix this build error, put the definition of *pf under the CONFIG_DCB.

Fixes: 99c969a83d82 ("octeontx2-pf: Add egress PFC support")
Signed-off-by: Ren Zhijie <renzhijie2@...wei.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index 49a4ff01cecb..9f5cb213c6d7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -1883,8 +1883,8 @@ static netdev_tx_t otx2_xmit(struct sk_buff *skb, struct net_device *netdev)
 static u16 otx2_select_queue(struct net_device *netdev, struct sk_buff *skb,
 			     struct net_device *sb_dev)
 {
-	struct otx2_nic *pf = netdev_priv(netdev);
 #ifdef CONFIG_DCB
+	struct otx2_nic *pf = netdev_priv(netdev);
 	u8 vlan_prio;
 #endif
 
-- 
2.17.1