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    Subject[PATCH 5.16 0378/1039] libbpf: Use probe_name for legacy kprobe
    Date
    From: Qiang Wang <wangqiang.wq.frank@bytedance.com>

    [ Upstream commit 71cff670baff5cc6a6eeb0181e2cc55579c5e1e0 ]

    Fix a bug in commit 46ed5fc33db9, which wrongly used the
    func_name instead of probe_name to register legacy kprobe.

    Fixes: 46ed5fc33db9 ("libbpf: Refactor and simplify legacy kprobe code")
    Co-developed-by: Chengming Zhou <zhouchengming@bytedance.com>
    Signed-off-by: Qiang Wang <wangqiang.wq.frank@bytedance.com>
    Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
    Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
    Tested-by: Hengqi Chen <hengqi.chen@gmail.com>
    Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
    Link: https://lore.kernel.org/bpf/20211227130713.66933-1-wangqiang.wq.frank@bytedance.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    tools/lib/bpf/libbpf.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
    index fd25e30e70cc2..2696f0b7f0acc 100644
    --- a/tools/lib/bpf/libbpf.c
    +++ b/tools/lib/bpf/libbpf.c
    @@ -9769,7 +9769,7 @@ bpf_program__attach_kprobe_opts(const struct bpf_program *prog,
    gen_kprobe_legacy_event_name(probe_name, sizeof(probe_name),
    func_name, offset);

    - legacy_probe = strdup(func_name);
    + legacy_probe = strdup(probe_name);
    if (!legacy_probe)
    return libbpf_err_ptr(-ENOMEM);

    --
    2.34.1


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