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authorHauke Mehrtens <hauke@hauke-m.de>2017-09-17 18:58:13 +0200
committerJohannes Berg <johannes.berg@intel.com>2017-09-21 15:18:24 +0200
commit8bfe0960dc2d33f15c6098945d36ebed5e5b5434 (patch)
tree732d84b54847c107e65ff7c68e1929d660af6d53
parent67d44a18bd3143e28f6b2a8038100585a2d596cb (diff)
header: add ether_addr_to_u64() and u64_to_ether_addr()v4.14-rc2-1
These function were added in commit 5952758101 ("dsa: mv88e6xxx: Optimise atu_get") and are now used by mwifiex. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--backport/backport-include/linux/etherdevice.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/backport/backport-include/linux/etherdevice.h b/backport/backport-include/linux/etherdevice.h
index 92256e00..a00e6660 100644
--- a/backport/backport-include/linux/etherdevice.h
+++ b/backport/backport-include/linux/etherdevice.h
@@ -193,4 +193,38 @@ static inline int eth_skb_pad(struct sk_buff *skb)
}
#endif /* LINUX_VERSION_IS_LESS(3,19,0) */
+#if LINUX_VERSION_IS_LESS(4,11,0)
+/**
+ * ether_addr_to_u64 - Convert an Ethernet address into a u64 value.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return a u64 value of the address
+ */
+static inline u64 ether_addr_to_u64(const u8 *addr)
+{
+ u64 u = 0;
+ int i;
+
+ for (i = 0; i < ETH_ALEN; i++)
+ u = u << 8 | addr[i];
+
+ return u;
+}
+
+/**
+ * u64_to_ether_addr - Convert a u64 to an Ethernet address.
+ * @u: u64 to convert to an Ethernet MAC address
+ * @addr: Pointer to a six-byte array to contain the Ethernet address
+ */
+static inline void u64_to_ether_addr(u64 u, u8 *addr)
+{
+ int i;
+
+ for (i = ETH_ALEN - 1; i >= 0; i--) {
+ addr[i] = u & 0xff;
+ u = u >> 8;
+ }
+}
+#endif /* LINUX_VERSION_IS_LESS(4,11,0) */
+
#endif /* _BACKPORT_LINUX_ETHERDEVICE_H */