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| author |   Diogo Ivo <diogo.ivo@siemens.com> | 2024-04-03 11:48:12 +0100 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2024-04-09 09:47:28 +0200 |
| commit | e1900d7ba9c9fd9edb214c43d2826876a5a35057 (patch) | |
| tree | 394103551ed2837966da4d1f580e3b105bb1d098 | |
| parent | dt-bindings: net: Add support for AM65x SR1.0 in ICSSG (diff) | |
| download | wireguard-linux-e1900d7ba9c9fd9edb214c43d2826876a5a35057.tar.xz wireguard-linux-e1900d7ba9c9fd9edb214c43d2826876a5a35057.zip | |
eth: Move IPv4/IPv6 multicast address bases to their own symbols
As these addresses can be useful outside of checking if an address
is a multicast address (for example in device drivers) make them
accessible to users of etherdevice.h to avoid code duplication.
Signed-off-by: Diogo Ivo <diogo.ivo@siemens.com>
Reviewed-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | include/linux/etherdevice.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 224645f17c33..8d6daf828427 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -71,6 +71,12 @@ static const u8 eth_reserved_addr_base[ETH_ALEN] __aligned(2) = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }; #define eth_stp_addr eth_reserved_addr_base +static const u8 eth_ipv4_mcast_addr_base[ETH_ALEN] __aligned(2) = +{ 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; + +static const u8 eth_ipv6_mcast_addr_base[ETH_ALEN] __aligned(2) = +{ 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 }; + /** * is_link_local_ether_addr - Determine if given Ethernet address is link-local * @addr: Pointer to a six-byte array containing the Ethernet address @@ -430,18 +436,16 @@ static inline bool ether_addr_equal_masked(const u8 *addr1, const u8 *addr2, static inline bool ether_addr_is_ipv4_mcast(const u8 *addr) { - u8 base[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; u8 mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 }; - return ether_addr_equal_masked(addr, base, mask); + return ether_addr_equal_masked(addr, eth_ipv4_mcast_addr_base, mask); } static inline bool ether_addr_is_ipv6_mcast(const u8 *addr) { - u8 base[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 }; u8 mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; - return ether_addr_equal_masked(addr, base, mask); + return ether_addr_equal_masked(addr, eth_ipv6_mcast_addr_base, mask); } static inline bool ether_addr_is_ip_mcast(const u8 *addr) |