linux-kernel - [PATCH] [net-next] mtk-star-emac: mark PM functions as __maybe

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Message-Id: <20200527133513.579367-1-arnd@arndb.de>
Date:   Wed, 27 May 2020 15:34:45 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Felix Fietkau <nbd@...nwrt.org>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [net-next] mtk-star-emac: mark PM functions as __maybe_unused

Without CONFIG_PM, the compiler warns about two unused functions:

drivers/net/ethernet/mediatek/mtk_star_emac.c:1472:12: error: unused function 'mtk_star_suspend' [-Werror,-Wunused-function]
drivers/net/ethernet/mediatek/mtk_star_emac.c:1488:12: error: unused function 'mtk_star_resume' [-Werror,-Wunused-function]

Mark these as __maybe_unused.

Fixes: 8c7bd5a454ff ("net: ethernet: mtk-star-emac: new driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/net/ethernet/mediatek/mtk_star_emac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c
index b18ce47c4f2e..3223567fe1cb 100644
--- a/drivers/net/ethernet/mediatek/mtk_star_emac.c
+++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c
@@ -1469,7 +1469,7 @@ static int mtk_star_mdio_init(struct net_device *ndev)
 	return ret;
 }
 
-static int mtk_star_suspend(struct device *dev)
+static __maybe_unused int mtk_star_suspend(struct device *dev)
 {
 	struct mtk_star_priv *priv;
 	struct net_device *ndev;
@@ -1485,7 +1485,7 @@ static int mtk_star_suspend(struct device *dev)
 	return 0;
 }
 
-static int mtk_star_resume(struct device *dev)
+static __maybe_unused int mtk_star_resume(struct device *dev)
 {
 	struct mtk_star_priv *priv;
 	struct net_device *ndev;
-- 
2.26.2