etherdevice: Add ether_addr_equal_unaligned
Add a generic routine to test if possibly unaligned to u16 Ethernet addresses are equal. If CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is set, this uses the slightly faster generic routine ether_addr_equal, otherwise this uses memcmp. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -265,6 +265,24 @@ static inline bool ether_addr_equal_64bits(const u8 addr1[6+2],
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#endif
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}
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/**
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* ether_addr_equal_unaligned - Compare two not u16 aligned Ethernet addresses
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* @addr1: Pointer to a six-byte array containing the Ethernet address
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* @addr2: Pointer other six-byte array containing the Ethernet address
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*
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* Compare two Ethernet addresses, returns true if equal
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*
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* Please note: Use only when any Ethernet address may not be u16 aligned.
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*/
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static inline bool ether_addr_equal_unaligned(const u8 *addr1, const u8 *addr2)
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{
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#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
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return ether_addr_equal(addr1, addr2);
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#else
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return memcmp(addr1, addr2, ETH_ALEN) == 0;
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#endif
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}
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/**
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* is_etherdev_addr - Tell if given Ethernet address belongs to the device.
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* @dev: Pointer to a device structure
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