ping: fix recently introduced build breakage for non-optimizing builds

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/networking/ping.c b/networking/ping.c
index e1f9ebc3a..dcbf19682 100644
--- a/networking/ping.c
+++ b/networking/ping.c
@@ -769,7 +769,7 @@ static void ping6(len_and_sockaddr *lsa)
         setsockopt_SOL_SOCKET_int(pingsock, SO_RCVBUF, sockopt);
 
         sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
-        if (sockopt != 2)
+        if (offsetof(struct icmp6_hdr, icmp6_cksum) != 2)
                 BUG_bad_offsetof_icmp6_cksum();
         setsockopt_int(pingsock, SOL_RAW, IPV6_CHECKSUM, sockopt);