3.2.82-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Duan Jiong <[email protected]> commit 6d57e9078e880a3dd232d579f42ac437a8f1ef7b upstream. a lot of code has either the memset or an inefficient copy from a static array that contains the all-zeros Ethernet address. Introduce help function eth_zero_addr() to fill an address with all zeros, making the code clearer and allowing us to get rid of some constant arrays. Signed-off-by: Duan Jiong <[email protected]> Signed-off-by: David S. Miller <[email protected]> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <[email protected]> --- include/linux/etherdevice.h | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -140,6 +140,17 @@ static inline void random_ether_addr(u8 } /** + * eth_zero_addr - Assign zero address + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Assign the zero address to the given address array. + */ +static inline void eth_zero_addr(u8 *addr) +{ + memset(addr, 0x00, ETH_ALEN); +} + +/** * dev_hw_addr_random - Create random MAC and set device flag * @dev: pointer to net_device structure * @hwaddr: Pointer to a six-byte array containing the Ethernet address
