> 2020/08/06 1:38、David Ahern <dsahern@xxxxxxxxx>のメール:
>
> On 8/4/20 5:27 AM, Yoshiki Komachi wrote:
>>
>> I guess that no build errors will occur because the API is allowed when
>> CONFIG_BRIDGE is enabled.
>>
>> I successfully build my kernel applying this patch, and I don’t receive any
>> messages from build robots for now.
>
> If CONFIG_BRIDGE is a module, build should fail: filter.c is built-in
> trying to access a symbol from module.
When I tried building my kernel with CONFIG_BRIDGE set as a module, I got
the following error as you pointed out:
ld: net/core/filter.o: in function `____bpf_xdp_fdb_lookup':
/root/bpf-next/net/core/filter.c:5108: undefined reference to `br_fdb_find_port_xdp'
It may be necessary to fix it to support kernels built with CONFIG_BRIDGE set
as a mfodule, so let me make sure if it should be called via netdev ops to get
destination port in a bridge again.
Thanks & Best regards,
—
Yoshiki Komachi
komachi.yoshiki@xxxxxxxxx
