Re: [PATCH bpf-next v4 2/5] bpf: Add ksock kfuncs

On Fri, Aug 07, 2026 at 11:08:43AM +0800, Jiayuan Chen wrote:
> 
> On 8/7/26 2:22 AM, Mahe Tardy wrote:
> 
> 
> [...]
> 
> > +	return ret;
> > +}
> > +
> > +__bpf_kfunc_end_defs();
> > +
> > +BTF_KFUNCS_START(ksock_init_kfunc_btf_ids)
> > +BTF_ID_FLAGS(func, bpf_ksock_create, KF_ACQUIRE | KF_RET_NULL | KF_SLEEPABLE)
> > +BTF_ID_FLAGS(func, bpf_ksock_connect, KF_SLEEPABLE)
> > +BTF_KFUNCS_END(ksock_init_kfunc_btf_ids)
> > +
> > +static const struct btf_kfunc_id_set ksock_init_kfunc_set = {
> > +	.owner = THIS_MODULE,
> > +	.set = &ksock_init_kfunc_btf_ids,
> > +};
> > +
> > +BTF_KFUNCS_START(ksock_kfunc_btf_ids)
> > +BTF_ID_FLAGS(func, bpf_ksock_release, KF_RELEASE)
> > +BTF_ID_FLAGS(func, bpf_ksock_acquire, KF_ACQUIRE | KF_RCU | KF_RET_NULL)
> > +BTF_ID_FLAGS(func, bpf_ksock_send, KF_SLEEPABLE)
> > +BTF_KFUNCS_END(ksock_kfunc_btf_ids)
> > +
> > +BTF_ID_LIST_SINGLE(bpf_lsm_socket_sendmsg_id, func, bpf_lsm_socket_sendmsg)
> > +
> 
> 
> I guess bpf_lsm_socket_sendmsg will not be compiled when CONFIG_BPF_LSM is
> disabled
> 

Yes indeed we can guard this with CONFIG_BPF_LSM as it might produce a
warning on building with CONFIG_BPF_LSM disabled. Thanks.