diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2024-05-15 07:29:56 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-05-15 07:30:49 -0700 |
| commit | 621cde16e49b3ecf7d59a8106a20aaebfb4a59a9 (patch) | |
| tree | bb4b8e255e276950c8d9502998f83a7f4f5bf5e9 /tools/lib/bpf/libbpf_probes.c | |
| parent | 317a215d493230da361028ea8a4675de334bfa1a (diff) | |
| parent | 1b294a1f35616977caddaddf3e9d28e576a1adbc (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Cross merge.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/lib/bpf/libbpf_probes.c')
| -rw-r--r-- | tools/lib/bpf/libbpf_probes.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c index 302188122439..9dfbe7750f56 100644 --- a/tools/lib/bpf/libbpf_probes.c +++ b/tools/lib/bpf/libbpf_probes.c @@ -448,7 +448,8 @@ int libbpf_probe_bpf_helper(enum bpf_prog_type prog_type, enum bpf_func_id helpe /* If BPF verifier doesn't recognize BPF helper ID (enum bpf_func_id) * at all, it will emit something like "invalid func unknown#181". * If BPF verifier recognizes BPF helper but it's not supported for - * given BPF program type, it will emit "unknown func bpf_sys_bpf#166". + * given BPF program type, it will emit "unknown func bpf_sys_bpf#166" + * or "program of this type cannot use helper bpf_sys_bpf#166". * In both cases, provided combination of BPF program type and BPF * helper is not supported by the kernel. * In all other cases, probe_prog_load() above will either succeed (e.g., @@ -457,7 +458,8 @@ int libbpf_probe_bpf_helper(enum bpf_prog_type prog_type, enum bpf_func_id helpe * that), or we'll get some more specific BPF verifier error about * some unsatisfied conditions. */ - if (ret == 0 && (strstr(buf, "invalid func ") || strstr(buf, "unknown func "))) + if (ret == 0 && (strstr(buf, "invalid func ") || strstr(buf, "unknown func ") || + strstr(buf, "program of this type cannot use helper "))) return 0; return 1; /* assume supported */ } |