We get a few warnings when building kernel with W=1:
drivers/net/ethernet/hisilicon/hisi_femac.c:943:5: warning: no previous 
prototype for 'hisi_femac_drv_suspend' [-Wmissing-prototypes]
drivers/net/ethernet/hisilicon/hisi_femac.c:960:5: warning: no previous 
prototype for 'hisi_femac_drv_resume' [-Wmissing-prototypes]
drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c:76:21: warning: no previous 
prototype for 'hns_ae_get_handle' [-Wmissing-prototypes]
....

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou....@linaro.org>
---
 drivers/net/ethernet/hisilicon/hisi_femac.c        |  6 ++---
 drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c  | 30 +++++++++++-----------
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c |  2 +-
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c  |  8 +++---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c |  7 ++---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c |  6 ++---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c  |  7 ++---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c  |  4 +--
 .../net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c    |  2 +-
 drivers/net/ethernet/hisilicon/hns/hns_enet.c      | 12 ++++-----
 drivers/net/ethernet/hisilicon/hns/hns_ethtool.c   | 24 +++++++++--------
 11 files changed, 57 insertions(+), 51 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hisi_femac.c 
b/drivers/net/ethernet/hisilicon/hisi_femac.c
index ca68e22..ced1859 100644
--- a/drivers/net/ethernet/hisilicon/hisi_femac.c
+++ b/drivers/net/ethernet/hisilicon/hisi_femac.c
@@ -940,8 +940,8 @@ static int hisi_femac_drv_remove(struct platform_device 
*pdev)
 }
 
 #ifdef CONFIG_PM
-int hisi_femac_drv_suspend(struct platform_device *pdev,
-                          pm_message_t state)
+static int hisi_femac_drv_suspend(struct platform_device *pdev,
+                                 pm_message_t state)
 {
        struct net_device *ndev = platform_get_drvdata(pdev);
        struct hisi_femac_priv *priv = netdev_priv(ndev);
@@ -957,7 +957,7 @@ int hisi_femac_drv_suspend(struct platform_device *pdev,
        return 0;
 }
 
-int hisi_femac_drv_resume(struct platform_device *pdev)
+static int hisi_femac_drv_resume(struct platform_device *pdev)
 {
        struct net_device *ndev = platform_get_drvdata(pdev);
        struct hisi_femac_priv *priv = netdev_priv(ndev);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c 
b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index e28d960..a1150e9 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -73,8 +73,8 @@ static struct ring_pair_cb *hns_ae_get_ring_pair(struct 
hnae_queue *q)
        return container_of(q, struct ring_pair_cb, q);
 }
 
-struct hnae_handle *hns_ae_get_handle(struct hnae_ae_dev *dev,
-                                     u32 port_id)
+static struct hnae_handle *hns_ae_get_handle(struct hnae_ae_dev *dev,
+                                            u32 port_id)
 {
        int vfnum_per_port;
        int qnum_per_vf;
@@ -271,7 +271,7 @@ static int hns_ae_start(struct hnae_handle *handle)
        return 0;
 }
 
-void hns_ae_stop(struct hnae_handle *handle)
+static void hns_ae_stop(struct hnae_handle *handle)
 {
        struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle);
 
@@ -299,7 +299,7 @@ static void hns_ae_reset(struct hnae_handle *handle)
        }
 }
 
-void hns_ae_toggle_ring_irq(struct hnae_ring *ring, u32 mask)
+static void hns_ae_toggle_ring_irq(struct hnae_ring *ring, u32 mask)
 {
        u32 flag;
 
@@ -487,8 +487,8 @@ static void hns_ae_get_coalesce_range(struct hnae_handle 
*handle,
        *rx_usecs_high  = HNS_RCB_MAX_COALESCED_USECS;
 }
 
-void hns_ae_update_stats(struct hnae_handle *handle,
-                        struct net_device_stats *net_stats)
+static void hns_ae_update_stats(struct hnae_handle *handle,
+                               struct net_device_stats *net_stats)
 {
        int port;
        int idx;
@@ -570,7 +570,7 @@ void hns_ae_update_stats(struct hnae_handle *handle,
        net_stats->multicast = mac_cb->hw_stats.rx_mc_pkts;
 }
 
-void hns_ae_get_stats(struct hnae_handle *handle, u64 *data)
+static void hns_ae_get_stats(struct hnae_handle *handle, u64 *data)
 {
        int idx;
        struct hns_mac_cb *mac_cb;
@@ -602,8 +602,8 @@ void hns_ae_get_stats(struct hnae_handle *handle, u64 *data)
                hns_dsaf_get_stats(vf_cb->dsaf_dev, p, vf_cb->port_index);
 }
 
-void hns_ae_get_strings(struct hnae_handle *handle,
-                       u32 stringset, u8 *data)
+static void hns_ae_get_strings(struct hnae_handle *handle,
+                              u32 stringset, u8 *data)
 {
        int port;
        int idx;
@@ -635,7 +635,7 @@ void hns_ae_get_strings(struct hnae_handle *handle,
                hns_dsaf_get_strings(stringset, p, port, dsaf_dev);
 }
 
-int hns_ae_get_sset_count(struct hnae_handle *handle, int stringset)
+static int hns_ae_get_sset_count(struct hnae_handle *handle, int stringset)
 {
        u32 sset_count = 0;
        struct hns_mac_cb *mac_cb;
@@ -684,7 +684,7 @@ static int hns_ae_config_loopback(struct hnae_handle 
*handle,
        return ret;
 }
 
-void hns_ae_update_led_status(struct hnae_handle *handle)
+static void hns_ae_update_led_status(struct hnae_handle *handle)
 {
        struct hns_mac_cb *mac_cb;
 
@@ -695,8 +695,8 @@ void hns_ae_update_led_status(struct hnae_handle *handle)
        hns_set_led_opt(mac_cb);
 }
 
-int hns_ae_cpld_set_led_id(struct hnae_handle *handle,
-                          enum hnae_led_state status)
+static int hns_ae_cpld_set_led_id(struct hnae_handle *handle,
+                                 enum hnae_led_state status)
 {
        struct hns_mac_cb *mac_cb;
 
@@ -707,7 +707,7 @@ int hns_ae_cpld_set_led_id(struct hnae_handle *handle,
        return hns_cpld_led_set_id(mac_cb, status);
 }
 
-void hns_ae_get_regs(struct hnae_handle *handle, void *data)
+static void hns_ae_get_regs(struct hnae_handle *handle, void *data)
 {
        u32 *p = data;
        int i;
@@ -732,7 +732,7 @@ void hns_ae_get_regs(struct hnae_handle *handle, void *data)
                hns_dsaf_get_regs(vf_cb->dsaf_dev, vf_cb->port_index, p);
 }
 
-int hns_ae_get_regs_len(struct hnae_handle *handle)
+static int hns_ae_get_regs_len(struct hnae_handle *handle)
 {
        u32 total_num;
        struct hnae_vf_cb *vf_cb = hns_ae_get_vf_cb(handle);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
index 1e1eb92..f0c63c8 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
@@ -327,7 +327,7 @@ static void hns_gmac_init(void *mac_drv)
                hns_gmac_set_uc_match(mac_drv, 0);
 }
 
-void hns_gmac_update_stats(void *mac_drv)
+static void hns_gmac_update_stats(void *mac_drv)
 {
        struct mac_hw_stats *hw_stats = NULL;
        struct mac_driver *drv = (struct mac_driver *)mac_drv;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index a68eef0..291a1ae 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -882,8 +882,9 @@ static int hns_mac_get_mode(phy_interface_t phy_if)
        }
 }
 
-u8 __iomem *hns_mac_get_vaddr(struct dsaf_device *dsaf_dev,
-                             struct hns_mac_cb *mac_cb, u32 mac_mode_idx)
+static u8 __iomem *
+hns_mac_get_vaddr(struct dsaf_device *dsaf_dev,
+                 struct hns_mac_cb *mac_cb, u32 mac_mode_idx)
 {
        u8 __iomem *base = dsaf_dev->io_base;
        int mac_id = mac_cb->mac_id;
@@ -901,7 +902,8 @@ u8 __iomem *hns_mac_get_vaddr(struct dsaf_device *dsaf_dev,
  * @mac_cb: mac control block
  * return 0 - success , negative --fail
  */
-int hns_mac_get_cfg(struct dsaf_device *dsaf_dev, struct hns_mac_cb *mac_cb)
+static int
+hns_mac_get_cfg(struct dsaf_device *dsaf_dev, struct hns_mac_cb *mac_cb)
 {
        int ret;
        u32 mac_mode_idx;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 8e5b3f5..0090927 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -42,7 +42,7 @@ static const struct acpi_device_id hns_dsaf_acpi_match[] = {
 };
 MODULE_DEVICE_TABLE(acpi, hns_dsaf_acpi_match);
 
-int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
+static int hns_dsaf_get_cfg(struct dsaf_device *dsaf_dev)
 {
        int ret, i;
        u32 desc_num;
@@ -2085,8 +2085,9 @@ static void hns_dsaf_pfc_unit_cnt(struct dsaf_device 
*dsaf_dev, int  mac_id,
  * @dsaf_id: dsa fabric id
  * @xge_ge_work_mode
  */
-void hns_dsaf_port_work_rate_cfg(struct dsaf_device *dsaf_dev, int mac_id,
-                                enum dsaf_port_rate_mode rate_mode)
+static void
+hns_dsaf_port_work_rate_cfg(struct dsaf_device *dsaf_dev, int mac_id,
+                           enum dsaf_port_rate_mode rate_mode)
 {
        u32 port_work_mode;
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index 67accce..d452d39 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -265,7 +265,7 @@ void hns_dsaf_srst_chns(struct dsaf_device *dsaf_dev, u32 
msk, bool dereset)
  * bit18-19 for com/dfx
  * @enable: false - request reset , true - drop reset
  */
-void
+static void
 hns_dsaf_srst_chns_acpi(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
 {
        hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
@@ -287,7 +287,7 @@ void hns_dsaf_roce_srst(struct dsaf_device *dsaf_dev, bool 
dereset)
        }
 }
 
-void hns_dsaf_roce_srst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
+static void hns_dsaf_roce_srst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
 {
        hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
                                   HNS_ROCE_RESET_FUNC, 0, dereset);
@@ -479,7 +479,7 @@ static phy_interface_t hns_mac_get_phy_if_acpi(struct 
hns_mac_cb *mac_cb)
        return phy_if;
 }
 
-int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
+static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
 {
        if (!mac_cb->cpld_ctrl)
                return -ENODEV;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
index 6ea8722..04e674c 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
@@ -73,7 +73,7 @@ hns_ppe_common_get_ioaddr(struct ppe_common_cb *ppe_common)
  * comm_index: common index
  * retuen 0 - success , negative --fail
  */
-int hns_ppe_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index)
+static int hns_ppe_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index)
 {
        struct ppe_common_cb *ppe_common;
        int ppe_num;
@@ -104,7 +104,8 @@ int hns_ppe_common_get_cfg(struct dsaf_device *dsaf_dev, 
int comm_index)
        return 0;
 }
 
-void hns_ppe_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index)
+static void
+hns_ppe_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index)
 {
        dsaf_dev->ppe_common[comm_index] = NULL;
 }
@@ -337,7 +338,7 @@ static void hns_ppe_uninit_hw(struct hns_ppe_cb *ppe_cb)
        }
 }
 
-void hns_ppe_uninit_ex(struct ppe_common_cb *ppe_common)
+static void hns_ppe_uninit_ex(struct ppe_common_cb *ppe_common)
 {
        u32 i;
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index ef11077..ded4506 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -612,7 +612,7 @@ void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, u16 
*max_vfn,
        }
 }
 
-int hns_rcb_get_ring_num(struct dsaf_device *dsaf_dev)
+static int hns_rcb_get_ring_num(struct dsaf_device *dsaf_dev)
 {
        switch (dsaf_dev->dsaf_mode) {
        case DSAF_MODE_ENABLE_FIX:
@@ -648,7 +648,7 @@ int hns_rcb_get_ring_num(struct dsaf_device *dsaf_dev)
        }
 }
 
-void __iomem *hns_rcb_common_get_vaddr(struct rcb_common_cb *rcb_common)
+static void __iomem *hns_rcb_common_get_vaddr(struct rcb_common_cb *rcb_common)
 {
        struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c
index 8f4f0e8..3198890 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c
@@ -306,7 +306,7 @@ static void hns_xgmac_config_max_frame_length(void 
*mac_drv, u16 newval)
        dsaf_write_dev(drv, XGMAC_MAC_MAX_PKT_SIZE_REG, newval);
 }
 
-void hns_xgmac_update_stats(void *mac_drv)
+static void hns_xgmac_update_stats(void *mac_drv)
 {
        struct mac_driver *drv = (struct mac_driver *)mac_drv;
        struct mac_hw_stats *hw_stats = &drv->mac_cb->hw_stats;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c 
b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index d7e1f8c..cbb0161 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1085,7 +1085,7 @@ static int hns_nic_net_set_mac_address(struct net_device 
*ndev, void *p)
        return 0;
 }
 
-void hns_nic_update_stats(struct net_device *netdev)
+static void hns_nic_update_stats(struct net_device *netdev)
 {
        struct hns_nic_priv *priv = netdev_priv(netdev);
        struct hnae_handle *h = priv->ae_handle;
@@ -1373,7 +1373,7 @@ static int hns_nic_do_ioctl(struct net_device *netdev, 
struct ifreq *ifr,
 
 /* use only for netconsole to poll with the device without interrupt */
 #ifdef CONFIG_NET_POLL_CONTROLLER
-void hns_nic_poll_controller(struct net_device *ndev)
+static void hns_nic_poll_controller(struct net_device *ndev)
 {
        struct hns_nic_priv *priv = netdev_priv(ndev);
        unsigned long flags;
@@ -1486,7 +1486,7 @@ static netdev_features_t hns_nic_fix_features(
  *
  * return void
  */
-void hns_set_multicast_list(struct net_device *ndev)
+static void hns_set_multicast_list(struct net_device *ndev)
 {
        struct hns_nic_priv *priv = netdev_priv(ndev);
        struct hnae_handle *h = priv->ae_handle;
@@ -1504,7 +1504,7 @@ void hns_set_multicast_list(struct net_device *ndev)
        }
 }
 
-void hns_nic_set_rx_mode(struct net_device *ndev)
+static void hns_nic_set_rx_mode(struct net_device *ndev)
 {
        struct hns_nic_priv *priv = netdev_priv(ndev);
        struct hnae_handle *h = priv->ae_handle;
@@ -1519,8 +1519,8 @@ void hns_nic_set_rx_mode(struct net_device *ndev)
        hns_set_multicast_list(ndev);
 }
 
-struct rtnl_link_stats64 *hns_nic_get_stats64(struct net_device *ndev,
-                                             struct rtnl_link_stats64 *stats)
+static struct rtnl_link_stats64 *
+hns_nic_get_stats64(struct net_device *ndev, struct rtnl_link_stats64 *stats)
 {
        int idx = 0;
        u64 tx_bytes = 0;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c 
b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 5eb3245..76ff959 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -666,8 +666,8 @@ static void hns_nic_get_drvinfo(struct net_device *net_dev,
  * @dev: net device
  * @param: ethtool parameter
  */
-void hns_get_ringparam(struct net_device *net_dev,
-                      struct ethtool_ringparam *param)
+static void hns_get_ringparam(struct net_device *net_dev,
+                             struct ethtool_ringparam *param)
 {
        struct hns_nic_priv *priv = netdev_priv(net_dev);
        struct hnae_ae_ops *ops;
@@ -815,7 +815,8 @@ static int hns_set_coalesce(struct net_device *net_dev,
  * @dev: net device
  * @ch: channel info.
  */
-void hns_get_channels(struct net_device *net_dev, struct ethtool_channels *ch)
+static void
+hns_get_channels(struct net_device *net_dev, struct ethtool_channels *ch)
 {
        struct hns_nic_priv *priv = netdev_priv(net_dev);
 
@@ -832,8 +833,8 @@ void hns_get_channels(struct net_device *net_dev, struct 
ethtool_channels *ch)
  * @stats: statistics info.
  * @data: statistics data.
  */
-void hns_get_ethtool_stats(struct net_device *netdev,
-                          struct ethtool_stats *stats, u64 *data)
+static void hns_get_ethtool_stats(struct net_device *netdev,
+                                 struct ethtool_stats *stats, u64 *data)
 {
        u64 *p = data;
        struct hns_nic_priv *priv = netdev_priv(netdev);
@@ -890,7 +891,7 @@ void hns_get_ethtool_stats(struct net_device *netdev,
  * @stats: string set ID.
  * @data: objects data.
  */
-void hns_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
+static void hns_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 {
        struct hns_nic_priv *priv = netdev_priv(netdev);
        struct hnae_handle *h = priv->ae_handle;
@@ -980,7 +981,7 @@ void hns_get_strings(struct net_device *netdev, u32 
stringset, u8 *data)
  *
  * Return string set count.
  */
-int hns_get_sset_count(struct net_device *netdev, int stringset)
+static int hns_get_sset_count(struct net_device *netdev, int stringset)
 {
        struct hns_nic_priv *priv = netdev_priv(netdev);
        struct hnae_handle *h = priv->ae_handle;
@@ -1012,7 +1013,7 @@ int hns_get_sset_count(struct net_device *netdev, int 
stringset)
  *
  * Return 0 on success, negative on failure.
  */
-int hns_phy_led_set(struct net_device *netdev, int value)
+static int hns_phy_led_set(struct net_device *netdev, int value)
 {
        int retval;
        struct hns_nic_priv *priv = netdev_priv(netdev);
@@ -1035,7 +1036,8 @@ int hns_phy_led_set(struct net_device *netdev, int value)
  *
  * Return 0 on success, negative on failure.
  */
-int hns_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state 
state)
+static int
+hns_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
 {
        struct hns_nic_priv *priv = netdev_priv(netdev);
        struct hnae_handle *h = priv->ae_handle;
@@ -1109,8 +1111,8 @@ int hns_set_phys_id(struct net_device *netdev, enum 
ethtool_phys_id_state state)
  * @cmd: ethtool cmd
  * @date: register data
  */
-void hns_get_regs(struct net_device *net_dev, struct ethtool_regs *cmd,
-                 void *data)
+static void hns_get_regs(struct net_device *net_dev, struct ethtool_regs *cmd,
+                        void *data)
 {
        struct hns_nic_priv *priv = netdev_priv(net_dev);
        struct hnae_ae_ops *ops;
-- 
2.7.4

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