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9eca508375
The bpf_map_lookup_elem is added in the bpf program. Without previous patch, the test change will trigger the following error: $ ./test_maps ... ; value_p = bpf_map_lookup_elem(map, &key); 20: (bf) r1 = r7 21: (bf) r2 = r8 22: (85) call bpf_map_lookup_elem#1 ; if (!value_p || *value_p != 123) 23: (15) if r0 == 0x0 goto pc+16 R0=map_value(id=2,off=0,ks=4,vs=4,imm=0) R6=inv1 R7=map_ptr(id=0,off=0,ks=4,vs=4,imm=0) R8=fp-8,call_-1 R10=fp0,call_-1 fp-8=mmmmmmmm ; if (!value_p || *value_p != 123) 24: (61) r1 = *(u32 *)(r0 +0) R0=map_value(id=2,off=0,ks=4,vs=4,imm=0) R6=inv1 R7=map_ptr(id=0,off=0,ks=4,vs=4,imm=0) R8=fp-8,call_-1 R10=fp0,call_-1 fp-8=mmmmmmmm bpf_spin_lock cannot be accessed directly by load/store With the kernel fix in the previous commit, the error goes away. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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.. | ||
bpf_flow.c | ||
connect4_prog.c | ||
connect6_prog.c | ||
dev_cgroup.c | ||
get_cgroup_id_kern.c | ||
netcnt_prog.c | ||
sample_map_ret0.c | ||
sample_ret0.c | ||
sendmsg4_prog.c | ||
sendmsg6_prog.c | ||
socket_cookie_prog.c | ||
sockmap_parse_prog.c | ||
sockmap_tcp_msg_prog.c | ||
sockmap_verdict_prog.c | ||
test_adjust_tail.c | ||
test_btf_haskv.c | ||
test_btf_nokv.c | ||
test_get_stack_rawtp.c | ||
test_l4lb_noinline.c | ||
test_l4lb.c | ||
test_lirc_mode2_kern.c | ||
test_lwt_ip_encap.c | ||
test_lwt_seg6local.c | ||
test_map_in_map.c | ||
test_map_lock.c | ||
test_obj_id.c | ||
test_pkt_access.c | ||
test_pkt_md_access.c | ||
test_queue_map.c | ||
test_select_reuseport_kern.c | ||
test_sk_lookup_kern.c | ||
test_skb_cgroup_id_kern.c | ||
test_sock_fields_kern.c | ||
test_sockhash_kern.c | ||
test_sockmap_kern.c | ||
test_spin_lock.c | ||
test_stack_map.c | ||
test_stacktrace_build_id.c | ||
test_stacktrace_map.c | ||
test_tcp_estats.c | ||
test_tcpbpf_kern.c | ||
test_tcpnotify_kern.c | ||
test_tracepoint.c | ||
test_tunnel_kern.c | ||
test_xdp_meta.c | ||
test_xdp_noinline.c | ||
test_xdp_redirect.c | ||
test_xdp_vlan.c | ||
test_xdp.c | ||
xdp_dummy.c |