This is needed by the rsi driver.
Signed-off-by: Hauke Mehrtens <[email protected]>
---
backport/backport-include/linux/etherdevice.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/backport/backport-include/linux/etherdevice.h
b/backport/backport-include/linux/etherdevice.h
index 8d09e1f..cc2ee0a 100644
--- a/backport/backport-include/linux/etherdevice.h
+++ b/backport/backport-include/linux/etherdevice.h
@@ -148,6 +148,29 @@ static inline bool ether_addr_equal_unaligned(const u8
*addr1, const u8 *addr2)
return memcmp(addr1, addr2, ETH_ALEN) == 0;
#endif
}
+
+/**
+ * ether_addr_copy - Copy an Ethernet address
+ * @dst: Pointer to a six-byte array Ethernet address destination
+ * @src: Pointer to a six-byte array Ethernet address source
+ *
+ * Please note: dst & src must both be aligned to u16.
+ */
+#define ether_addr_copy LINUX_BACKPORT(ether_addr_copy)
+static inline void ether_addr_copy(u8 *dst, const u8 *src)
+{
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+ *(u32 *)dst = *(const u32 *)src;
+ *(u16 *)(dst + 4) = *(const u16 *)(src + 4);
+#else
+ u16 *a = (u16 *)dst;
+ const u16 *b = (const u16 *)src;
+
+ a[0] = b[0];
+ a[1] = b[1];
+ a[2] = b[2];
+#endif
+}
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0) */
#endif /* _BACKPORT_LINUX_ETHERDEVICE_H */
--
1.9.1
--
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