1 // SPDX-License-Identifier: GPL-2.0
2 /* Converted from tools/testing/selftests/bpf/verifier/xdp.c */
3 
4 #include <linux/bpf.h>
5 #include <bpf/bpf_helpers.h>
6 #include "bpf_misc.h"
7 
8 SEC("xdp")
9 __description("XDP, using ifindex from netdev")
10 __success __retval(1)
11 __naked void xdp_using_ifindex_from_netdev(void)
12 {
13 	asm volatile ("					\
14 	r0 = 0;						\
15 	r2 = *(u32*)(r1 + %[xdp_md_ingress_ifindex]);	\
16 	if r2 < 1 goto l0_%=;				\
17 	r0 = 1;						\
18 l0_%=:	exit;						\
19 "	:
20 	: __imm_const(xdp_md_ingress_ifindex, offsetof(struct xdp_md, ingress_ifindex))
21 	: __clobber_all);
22 }
23 
24 char _license[] SEC("license") = "GPL";
25