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net: handle ARPHRD_PPP in dev_is_mac_header_xmit()
commit a4f39c9 upstream. The goal is to support a bpf_redirect() from an ethernet device (ingress) to a ppp device (egress). The l2 header is added automatically by the ppp driver, thus the ethernet header should be removed. CC: stable@vger.kernel.org Fixes: 27b29f6 ("bpf: add bpf_redirect() helper") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Tested-by: Siwar Zitouni <siwar.zitouni@6wind.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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