ipv4: call __ip_options_echo() in cookie_v4_check()
commit 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") missed that cookie_v4_check() still calls ip_options_echo() which uses IPCB(). It should use TCPCB() at TCP layer, so call __ip_options_echo() instead. Fixes: commit 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Cc: Krzysztof Kolasa <kkolasa@winsoft.pl> Cc: Eric Dumazet <edumazet@google.com> Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Signed-off-by: Cong Wang <cwang@twopensource.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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