[PATCH net-next 01/14] etherdevice: Add eth_<foo>_addr CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS code

[Joe Perches]

Make the memset possibly more efficient with the appropriate
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS #ifdef

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
 include/linux/etherdevice.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 606563e..22ad94a 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -192,7 +192,12 @@ static inline void eth_random_addr(u8 *addr)
  */
 static inline void eth_broadcast_addr(u8 *addr)
 {
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+	*(u32 *)addr = 0xffffffff;
+	*(u16 *)(addr + 4) = 0xffff;
+#else
 	memset(addr, 0xff, ETH_ALEN);
+#endif
 }
 
 /**
@@ -203,7 +208,12 @@ static inline void eth_broadcast_addr(u8 *addr)
  */
 static inline void eth_zero_addr(u8 *addr)
 {
-	memset(addr, 0x00, ETH_ALEN);
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+	*(u32 *)addr = 0;
+	*(u16 *)(addr + 4) = 0;
+#else
+	memset(addr, 0, ETH_ALEN);
+#endif
 }
 
 /**
-- 
2.1.2

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