1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Stubs for the Network PHY library 4 */ 5 6 #include <linux/rtnetlink.h> 7 8 struct kernel_hwtstamp_config; 9 struct netlink_ext_ack; 10 struct phy_device; 11 12 #if IS_ENABLED(CONFIG_PHYLIB) 13 14 extern const struct phylib_stubs *phylib_stubs; 15 16 struct phylib_stubs { 17 int (*hwtstamp_get)(struct phy_device *phydev, 18 struct kernel_hwtstamp_config *config); 19 int (*hwtstamp_set)(struct phy_device *phydev, 20 struct kernel_hwtstamp_config *config, 21 struct netlink_ext_ack *extack); 22 }; 23 phy_hwtstamp_get(struct phy_device * phydev,struct kernel_hwtstamp_config * config)24 static inline int phy_hwtstamp_get(struct phy_device *phydev, 25 struct kernel_hwtstamp_config *config) 26 { 27 /* phylib_register_stubs() and phylib_unregister_stubs() 28 * also run under rtnl_lock(). 29 */ 30 ASSERT_RTNL(); 31 32 if (!phylib_stubs) 33 return -EOPNOTSUPP; 34 35 return phylib_stubs->hwtstamp_get(phydev, config); 36 } 37 phy_hwtstamp_set(struct phy_device * phydev,struct kernel_hwtstamp_config * config,struct netlink_ext_ack * extack)38 static inline int phy_hwtstamp_set(struct phy_device *phydev, 39 struct kernel_hwtstamp_config *config, 40 struct netlink_ext_ack *extack) 41 { 42 /* phylib_register_stubs() and phylib_unregister_stubs() 43 * also run under rtnl_lock(). 44 */ 45 ASSERT_RTNL(); 46 47 if (!phylib_stubs) 48 return -EOPNOTSUPP; 49 50 return phylib_stubs->hwtstamp_set(phydev, config, extack); 51 } 52 53 #else 54 phy_hwtstamp_get(struct phy_device * phydev,struct kernel_hwtstamp_config * config)55 static inline int phy_hwtstamp_get(struct phy_device *phydev, 56 struct kernel_hwtstamp_config *config) 57 { 58 return -EOPNOTSUPP; 59 } 60 phy_hwtstamp_set(struct phy_device * phydev,struct kernel_hwtstamp_config * config,struct netlink_ext_ack * extack)61 static inline int phy_hwtstamp_set(struct phy_device *phydev, 62 struct kernel_hwtstamp_config *config, 63 struct netlink_ext_ack *extack) 64 { 65 return -EOPNOTSUPP; 66 } 67 68 #endif 69