[PATCH bpf-next] libbpf: skip bpf_object__probe_loading for light skeleton

I'm getting the following error when running 'gen skeleton -L' as
regular user:

libbpf: Error in bpf_object__probe_loading():Operation not permitted(1).
Couldn't load trivial BPF program. Make sure your kernel supports BPF
(CONFIG_BPF_SYSCALL=y) and/or that RLIMIT_MEMLOCK is set to big enough
value.

Fixes: 67234743736a ("libbpf: Generate loader program out of BPF ELF file.")
Signed-off-by: Stanislav Fomichev <redacted>
---
 tools/lib/bpf/libbpf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index dc4d5fe6d9d2..b396e45b17ea 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c

@@ -3971,6 +3971,9 @@ bpf_object__probe_loading(struct bpf_object *obj)
 	};
 	int ret;
 
+	if (obj->gen_loader)
+		return 0;
+
 	/* make sure basic loading works */
 
 	memset(&attr, 0, sizeof(attr));

-- 
2.31.1.818.g46aad6cb9e-goog

Hello:

This patch was applied to bpf/bpf-next.git (refs/heads/master):

On Thu, 20 May 2021 20:06:53 -0700 you wrote:

I'm getting the following error when running 'gen skeleton -L' as
regular user:

libbpf: Error in bpf_object__probe_loading():Operation not permitted(1).
Couldn't load trivial BPF program. Make sure your kernel supports BPF
(CONFIG_BPF_SYSCALL=y) and/or that RLIMIT_MEMLOCK is set to big enough
value.

[...]

Here is the summary with links:
  - [bpf-next] libbpf: skip bpf_object__probe_loading for light skeleton
    https://git.kernel.org/bpf/bpf-next/c/f9bceaa59c5c

You are awesome, thank you!
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