2023-06-05 17:54:37

by Stanislav Fomichev

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Subject: Re: [PATCH] libbpf:fix use empty function pointers in ringbuf_poll

On 06/05, Xin Liu wrote:
> From: zhangmingyi <[email protected]>
>
> The sample_cb of the ring_buffer__new interface can transfer NULL. However,
> the system does not check whether sample_cb is NULL during
> ring_buffer__poll, null pointer is used.

What is the point of calling ring_buffer__new with sample_cb == NULL?