Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> writes:
> On Wed, Nov 9, 2022 at 9:46 AM Donald Hunter <donald.hunter@xxxxxxxxx> wrote:
>>
>> +This example BPF program shows how to access an array element.
>> +
>> +.. code-block:: c
>> +
>> + int bpf_prog(struct __sk_buff *skb)
>> + {
>> + struct iphdr ip;
>> + int index;
>> + long *value;
>> +
>> + if (bpf_skb_load_bytes(skb, ETH_HLEN, &ip, sizeof(ip)) < 0)
>> + return 0;
>> +
>> + index = ip.protocol;
>> + value = bpf_map_lookup_elem(&my_map, &index);
>> + if (value)
>> + __sync_fetch_and_add(value, skb->len);
>
> should be &value
>
> I fixed it up and applied to bpf-next, thanks.
I double checked and it really should be value, which is already a
pointer.
Do you want me to send a patch to fix it up?
