Re: Typo in the man7 bpf-helpers page

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Hi Zexuan, Quentin,

On 1/31/23 11:03, Zexuan Luo wrote:
Hello Colomar,

I just found a potential bug in the bpf-helpers page.

Thanks for reporting bugs :)


Under the https://www.man7.org/linux/man-pages/man7/bpf-helpers.7.html:

This page is generated from the Linux kernel sources. I've CCed Quentin and the BPF list so they can check it there.

BTW, I'm refreshing the page now.

Quentin, I realized in the diff that there is some inconsistency in the number of spaces after a sentence-ending period. Could you please use two spaces for that? It's especially important for groff(1), which will render it differently. However, it's not a big issue, so don't feel urged to do that.

Cheers,

Alex


```
        u64 bpf_get_socket_cookie(struct sk_buff *skb)

               Description
                      If the struct sk_buff pointed by skb has a known
                      socket, retrieve the cookie (generated by the
                      kernel) of this socket.  If no cookie has been set
                      yet, generate a new cookie. Once generated, the
                      socket cookie remains stable for the life of the
                      socket. This helper can be useful for monitoring
                      per socket networking traffic statistics as it
                      provides a global socket identifier that can be
                      assumed unique.

               Return A 8-byte long non-decreasing number on success, or
                      0 if the socket field is missing inside skb.

        u64 bpf_get_socket_cookie(struct bpf_sock_addr *ctx)

               Description
                      Equivalent to bpf_get_socket_cookie() helper that
                      accepts skb, but gets socket from struct
                      bpf_sock_addr context.

               Return A 8-byte long non-decreasing number.

        u64 bpf_get_socket_cookie(struct bpf_sock_ops *ctx)

               Description
                      Equivalent to bpf_get_socket_cookie() helper that
                      accepts skb, but gets socket from struct
                      bpf_sock_ops context.

               Return A 8-byte long non-decreasing number.
```

The function bpf_get_socket_cookie repeats three times. The second one
should be bpf_get_socket_cookie_addr and the third one should be
bpf_get_socket_cookie_ops.

--
<http://www.alejandro-colomar.es/>

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