diff options
Diffstat (limited to 'libdde-linux26/contrib/include/linux/etherdevice.h')
| -rw-r--r-- | libdde-linux26/contrib/include/linux/etherdevice.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/include/linux/etherdevice.h b/libdde-linux26/contrib/include/linux/etherdevice.h index 1cb0f0b9..fbb3836e 100644 --- a/libdde-linux26/contrib/include/linux/etherdevice.h +++ b/libdde-linux26/contrib/include/linux/etherdevice.h @@ -182,6 +182,33 @@ static inline unsigned compare_ether_addr_64bits(const u8 addr1[6+2], return compare_ether_addr(addr1, addr2); #endif } + +/** + * is_etherdev_addr - Tell if given Ethernet address belongs to the device. + * @dev: Pointer to a device structure + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Compare passed address with all addresses of the device. Return true if the + * address if one of the device addresses. + * + * Note that this function calls compare_ether_addr_64bits() so take care of + * the right padding. + */ +static inline bool is_etherdev_addr(const struct net_device *dev, + const u8 addr[6 + 2]) +{ + struct netdev_hw_addr *ha; + int res = 1; + + rcu_read_lock(); + for_each_dev_addr(dev, ha) { + res = compare_ether_addr_64bits(addr, ha->addr); + if (!res) + break; + } + rcu_read_unlock(); + return !res; +} #endif /* __KERNEL__ */ #endif /* _LINUX_ETHERDEVICE_H */ |