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Date: Tue, 14 Jan 2020 09:56:27 -0800 From: Alexei Starovoitov <alexei.starovoitov@...il.com> To: Martin KaFai Lau <kafai@...com> Cc: bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, David Miller <davem@...emloft.net>, Kernel Team <kernel-team@...com>, Network Development <netdev@...r.kernel.org> Subject: Re: [PATCH bpf-next] bpf: Fix seq_show for BPF_MAP_TYPE_STRUCT_OPS On Mon, Jan 13, 2020 at 11:26 PM Martin KaFai Lau <kafai@...com> wrote: > > Instead of using bpf_struct_ops_map_lookup_elem() which is > not implemented, bpf_struct_ops_map_seq_show_elem() should > also use bpf_struct_ops_map_sys_lookup_elem() which does > an inplace update to the value. The change allocates > a value to pass to bpf_struct_ops_map_sys_lookup_elem(). > > [root@...h-fb-vm1 bpf]# cat /sys/fs/bpf/dctcp > {{{1}},BPF_STRUCT_OPS_STATE_INUSE,{{00000000df93eebc,00000000df93eebc},0,2, ... > > Fixes: 85d33df357b6 ("bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS") > Reported-by: Dan Carpenter <dan.carpenter@...cle.com> > Signed-off-by: Martin KaFai Lau <kafai@...com> Applied. Thanks
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