arp: fix a regression in arp_solicit()
arp: fix a regression in arp_solicit()

Sedat reported the following commit caused a regression:

commit 9650388b5c56578fdccc79c57a8c82fb92b8e7f1
Author: Eric Dumazet <312c7d941f03386814be517ffdb3e0eb6624e275@google.com>
Date:   Fri Dec 21 07:32:10 2012 +0000

    ipv4: arp: fix a lockdep splat in arp_solicit

This is due to the 6th parameter of arp_send() needs to be NULL
for the broadcast case, the above commit changed it to an all-zero
array by mistake.

Reported-by: Sedat Dilek <4946ef7dd8f3b21b6f8e2f51ee1d2e36059c35a6@gmail.com>
Tested-by: Sedat Dilek <4946ef7dd8f3b21b6f8e2f51ee1d2e36059c35a6@gmail.com>
Cc: Sedat Dilek <4946ef7dd8f3b21b6f8e2f51ee1d2e36059c35a6@gmail.com>
Cc: Eric Dumazet <312c7d941f03386814be517ffdb3e0eb6624e275@google.com>
Cc: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>
Cc: Julian Anastasov <84572ef2253ef81e2d8cd8c65849f4d9a3881f47@ssi.bg>
Signed-off-by: Cong Wang <0f114804888b88d50037b04b42e57b858d851b87@gmail.com>
Acked-by: Eric Dumazet <312c7d941f03386814be517ffdb3e0eb6624e275@google.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs