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 8SEC("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; \ 18l0_%=: exit; \ 19" : 20 : __imm_const(xdp_md_ingress_ifindex, offsetof(struct xdp_md, ingress_ifindex)) 21 : __clobber_all); 22} 23 24char _license[] SEC("license") = "GPL"; 25