linux-kernel - [PATCH] net: enetc: Replace ifdef with IS

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Message-ID: <20240830175052.1463711-1-martyn.welch@collabora.com>
Date: Fri, 30 Aug 2024 18:50:50 +0100
From: Martyn Welch <martyn.welch@...labora.com>
To: Claudiu Manoil <claudiu.manoil@....com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: kernel@...labora.com,
	Martyn Welch <martyn.welch@...labora.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] net: enetc: Replace ifdef with IS_ENABLED

The enetc driver uses ifdefs when checking whether
CONFIG_FSL_ENETC_PTP_CLOCK is enabled in a number of places. This works
if the driver is compiled in but fails if the driver is available as a
kernel module. Replace the instances of ifdef with use of the IS_ENABLED
macro, that will evaluate as true when this feature is built as a kernel
module.

Signed-off-by: Martyn Welch <martyn.welch@...labora.com>
---
 drivers/net/ethernet/freescale/enetc/enetc.c         | 8 ++++----
 drivers/net/ethernet/freescale/enetc/enetc.h         | 4 ++--
 drivers/net/ethernet/freescale/enetc/enetc_ethtool.c | 2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 5c45f42232d3..276bc96dd1ef 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -977,7 +977,7 @@ static int enetc_refill_rx_ring(struct enetc_bdr *rx_ring, const int buff_cnt)
 	return j;
 }
 
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 static void enetc_get_rx_tstamp(struct net_device *ndev,
 				union enetc_rx_bd *rxbd,
 				struct sk_buff *skb)
@@ -1041,7 +1041,7 @@ static void enetc_get_offloads(struct enetc_bdr *rx_ring,
 		__vlan_hwaccel_put_tag(skb, tpid, le16_to_cpu(rxbd->r.vlan_opt));
 	}
 
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 	if (priv->active_offloads & ENETC_F_RX_TSTAMP)
 		enetc_get_rx_tstamp(rx_ring->ndev, rxbd, skb);
 #endif
@@ -2882,7 +2882,7 @@ void enetc_set_features(struct net_device *ndev, netdev_features_t features)
 }
 EXPORT_SYMBOL_GPL(enetc_set_features);
 
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 static int enetc_hwtstamp_set(struct net_device *ndev, struct ifreq *ifr)
 {
 	struct enetc_ndev_priv *priv = netdev_priv(ndev);
@@ -2956,7 +2956,7 @@ static int enetc_hwtstamp_get(struct net_device *ndev, struct ifreq *ifr)
 int enetc_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
 {
 	struct enetc_ndev_priv *priv = netdev_priv(ndev);
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 	if (cmd == SIOCSHWTSTAMP)
 		return enetc_hwtstamp_set(ndev, rq);
 	if (cmd == SIOCGHWTSTAMP)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index a9c2ff22431c..b527bb3d51b4 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -184,7 +184,7 @@ static inline union enetc_rx_bd *enetc_rxbd(struct enetc_bdr *rx_ring, int i)
 {
 	int hw_idx = i;
 
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 	if (rx_ring->ext_en)
 		hw_idx = 2 * i;
 #endif
@@ -199,7 +199,7 @@ static inline void enetc_rxbd_next(struct enetc_bdr *rx_ring,
 
 	new_rxbd++;
 
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 	if (rx_ring->ext_en)
 		new_rxbd++;
 #endif
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
index 5e684b23c5f5..d6fdec2220ce 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
@@ -853,7 +853,7 @@ static int enetc_get_ts_info(struct net_device *ndev,
 		info->phc_index = -1;
 	}
 
-#ifdef CONFIG_FSL_ENETC_PTP_CLOCK
+#if IS_ENABLED(CONFIG_FSL_ENETC_PTP_CLOCK)
 	info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
 				SOF_TIMESTAMPING_RX_HARDWARE |
 				SOF_TIMESTAMPING_RAW_HARDWARE |
-- 
2.45.2