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UPSTREAM: bpf: Refactor bpf_iter_reg to have separate seq_info member

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There is no functionality change for this patch.
Struct bpf_iter_reg is used to register a bpf_iter target,
which includes information for both prog_load, link_create
and seq_file creation.

This patch puts fields related seq_file creation into
a different structure. This will be useful for map
elements iterator where one iterator covers different
map types and different map types may have different
seq_ops, init/fini private_data function and
private_data size.

Change-Id: I2577d77f6b6be71319457720547ba77cff04c68b
Signed-off-by: Yonghong Song <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
This commit is contained in:
Yonghong Song 2020-07-23 11:41:09 -07:00 • committed by basamaryan
commit ecc4d9f640
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9 changed files with 64 additions and 29 deletions
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8
net/ipv6/route.c
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@ -6415,17 +6415,21 @@ DEFINE_BPF_ITER_FUNC(ipv6_route, struct bpf_iter_meta *meta, struct fib6_info *r
BTF_ID_LIST(btf_fib6_info_id)
BTF_ID(struct, fib6_info)
static struct bpf_iter_reg ipv6_route_reg_info = {
.target = "ipv6_route",
static const struct bpf_iter_seq_info ipv6_route_seq_info = {
.seq_ops = &ipv6_route_seq_ops,
.init_seq_private = bpf_iter_init_seq_net,
.fini_seq_private = bpf_iter_fini_seq_net,
.seq_priv_size = sizeof(struct ipv6_route_iter),
};
static struct bpf_iter_reg ipv6_route_reg_info = {
.target = "ipv6_route",
.ctx_arg_info_size = 1,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__ipv6_route, rt),
PTR_TO_BTF_ID_OR_NULL },
},
.seq_info = &ipv6_route_seq_info,
};
static int __init bpf_iter_register(void)