From 7bdc1b4abab3af0a803300f706c9814ef4e20a3e Mon Sep 17 00:00:00 2001
From: =?utf8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?=
 =?utf8?q?=E6=98=8E?= <yoshfuji@linux-ipv6.org>
Date: Thu, 13 Dec 2012 04:29:36 +0000
Subject: [PATCH] ndisc: Fix padding error in link-layer address option.

If a natural number n exists where 2 + data_len <= 8n < 2 + data_len + pad,
post padding is not initialized correctly.

(Un)fortunately, the only type that requires pad is Infiniband,
whose pad is 2 and data_len is 20, and this logical error has not
become obvious, but it is better to fix.

Note that ndisc_opt_addr_space() handles the situation described
above correctly.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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