samples/bpf: add missing <linux/if_vlan.h>
This fixes build error regarding redefinition: CLANG-bpf samples/bpf/parse_varlen.o samples/bpf/parse_varlen.c:111:8: error: redefinition of 'vlan_hdr' struct vlan_hdr { ^ ./include/linux/if_vlan.h:38:8: note: previous definition is here So remove duplicate 'struct vlan_hdr' in sample code and include if_vlan.h Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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@ -6,6 +6,7 @@
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*/
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#define KBUILD_MODNAME "foo"
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/in.h>
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@ -108,11 +109,6 @@ static int parse_ipv6(void *data, uint64_t nh_off, void *data_end)
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return 0;
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}
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struct vlan_hdr {
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uint16_t h_vlan_TCI;
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uint16_t h_vlan_encapsulated_proto;
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};
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SEC("varlen")
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int handle_ingress(struct __sk_buff *skb)
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{
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