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Message-ID: <20160914130231.3035-2-grygorii.strashko@ti.com>
Date:   Wed, 14 Sep 2016 16:02:23 +0300
From:   Grygorii Strashko <grygorii.strashko@...com>
To:     "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        Mugunthan V N <mugunthanvnm@...com>,
        Richard Cochran <richardcochran@...il.com>
CC:     Sekhar Nori <nsekhar@...com>, <linux-kernel@...r.kernel.org>,
        <linux-omap@...r.kernel.org>, WingMan Kwok <w-kwok2@...com>,
        Grygorii Strashko <grygorii.strashko@...com>
Subject: [PATCH 1/9] net: ethernet: ti: exclude cpts from build when disabled

TI CPTS feature declared as optional, but cpts.c module is
included in build always.
Exclude  cpts.c from build when CPTS is disabled in Kconfig and
optimize usage of CONFIG_TI_CPTS.

Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
---
 drivers/net/ethernet/ti/Makefile |  3 ++-
 drivers/net/ethernet/ti/cpsw.c   | 21 ++++++++++++++++-----
 drivers/net/ethernet/ti/cpts.c   |  8 --------
 drivers/net/ethernet/ti/cpts.h   | 14 ++++++++++++--
 4 files changed, 30 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index d420d94..1e7c10b 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -12,8 +12,9 @@ obj-$(CONFIG_TI_DAVINCI_MDIO) += davinci_mdio.o
 obj-$(CONFIG_TI_DAVINCI_CPDMA) += davinci_cpdma.o
 obj-$(CONFIG_TI_CPSW_PHY_SEL) += cpsw-phy-sel.o
 obj-$(CONFIG_TI_CPSW_ALE) += cpsw_ale.o
+obj-$(CONFIG_TI_CPTS) += cpts.o
 obj-$(CONFIG_TI_CPSW) += ti_cpsw.o
-ti_cpsw-y := cpsw.o cpts.o
+ti_cpsw-y := cpsw.o
 
 obj-$(CONFIG_TI_KEYSTONE_NETCP) += keystone_netcp.o
 keystone_netcp-y := netcp_core.o
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index c6cff3d..b743bb1d 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1514,7 +1514,6 @@ fail:
 }
 
 #ifdef CONFIG_TI_CPTS
-
 static void cpsw_hwtstamp_v1(struct cpsw_common *cpsw)
 {
 	struct cpsw_slave *slave = &cpsw->slaves[cpsw->data.active_slave];
@@ -1661,7 +1660,16 @@ static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
 
 	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
 }
+#else
+static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
+{
+	return -EOPNOTSUPP;
+}
 
+static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
+{
+	return -EOPNOTSUPP;
+}
 #endif /*CONFIG_TI_CPTS*/
 
 static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
@@ -1674,12 +1682,10 @@ static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
 		return -EINVAL;
 
 	switch (cmd) {
-#ifdef CONFIG_TI_CPTS
 	case SIOCSHWTSTAMP:
 		return cpsw_hwtstamp_set(dev, req);
 	case SIOCGHWTSTAMP:
 		return cpsw_hwtstamp_get(dev, req);
-#endif
 	}
 
 	if (!cpsw->slaves[slave_no].phy)
@@ -1935,10 +1941,10 @@ static void cpsw_set_msglevel(struct net_device *ndev, u32 value)
 	priv->msg_enable = value;
 }
 
+#ifdef CONFIG_TI_CPTS
 static int cpsw_get_ts_info(struct net_device *ndev,
 			    struct ethtool_ts_info *info)
 {
-#ifdef CONFIG_TI_CPTS
 	struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
 
 	info->so_timestamping =
@@ -1955,7 +1961,12 @@ static int cpsw_get_ts_info(struct net_device *ndev,
 	info->rx_filters =
 		(1 << HWTSTAMP_FILTER_NONE) |
 		(1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
+	return 0;
+}
 #else
+static int cpsw_get_ts_info(struct net_device *ndev,
+			    struct ethtool_ts_info *info)
+{
 	info->so_timestamping =
 		SOF_TIMESTAMPING_TX_SOFTWARE |
 		SOF_TIMESTAMPING_RX_SOFTWARE |
@@ -1963,9 +1974,9 @@ static int cpsw_get_ts_info(struct net_device *ndev,
 	info->phc_index = -1;
 	info->tx_types = 0;
 	info->rx_filters = 0;
-#endif
 	return 0;
 }
+#endif
 
 static int cpsw_get_settings(struct net_device *ndev,
 			     struct ethtool_cmd *ecmd)
diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
index 85a55b4..aaab08e 100644
--- a/drivers/net/ethernet/ti/cpts.c
+++ b/drivers/net/ethernet/ti/cpts.c
@@ -31,8 +31,6 @@
 
 #include "cpts.h"
 
-#ifdef CONFIG_TI_CPTS
-
 #define cpts_read32(c, r)	__raw_readl(&c->reg->r)
 #define cpts_write32(c, v, r)	__raw_writel(v, &c->reg->r)
 
@@ -350,12 +348,9 @@ void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb)
 	skb_tstamp_tx(skb, &ssh);
 }
 
-#endif /*CONFIG_TI_CPTS*/
-
 int cpts_register(struct device *dev, struct cpts *cpts,
 		  u32 mult, u32 shift)
 {
-#ifdef CONFIG_TI_CPTS
 	int err, i;
 	unsigned long flags;
 
@@ -391,18 +386,15 @@ int cpts_register(struct device *dev, struct cpts *cpts,
 	schedule_delayed_work(&cpts->overflow_work, CPTS_OVERFLOW_PERIOD);
 
 	cpts->phc_index = ptp_clock_index(cpts->clock);
-#endif
 	return 0;
 }
 
 void cpts_unregister(struct cpts *cpts)
 {
-#ifdef CONFIG_TI_CPTS
 	if (cpts->clock) {
 		ptp_clock_unregister(cpts->clock);
 		cancel_delayed_work_sync(&cpts->overflow_work);
 	}
 	if (cpts->refclk)
 		cpts_clk_release(cpts);
-#endif
 }
diff --git a/drivers/net/ethernet/ti/cpts.h b/drivers/net/ethernet/ti/cpts.h
index 69a46b9..a68780d 100644
--- a/drivers/net/ethernet/ti/cpts.h
+++ b/drivers/net/ethernet/ti/cpts.h
@@ -130,6 +130,8 @@ struct cpts {
 #ifdef CONFIG_TI_CPTS
 void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb);
 void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb);
+int cpts_register(struct device *dev, struct cpts *cpts, u32 mult, u32 shift);
+void cpts_unregister(struct cpts *cpts);
 #else
 static inline void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb)
 {
@@ -137,9 +139,17 @@ static inline void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb)
 static inline void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb)
 {
 }
+
+static inline int
+cpts_register(struct device *dev, struct cpts *cpts, u32 mult, u32 shift)
+{
+	return 0;
+}
+
+static inline void cpts_unregister(struct cpts *cpts)
+{
+}
 #endif
 
-int cpts_register(struct device *dev, struct cpts *cpts, u32 mult, u32 shift);
-void cpts_unregister(struct cpts *cpts);
 
 #endif
-- 
2.9.3

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