diff options
| author |   Johannes Berg <johannes.berg@intel.com> | 2017-04-11 15:34:57 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-04-11 14:38:43 -0400 |
| commit | be9370a7d8614d1fa54649c75de14458e79b91ec (patch) | |
| tree | 69ab002234e93207d87ad9864028557919c791df /include | |
| parent | Merge branch 'fec-driver-code-clean' (diff) | |
| download | linux-dev-be9370a7d8614d1fa54649c75de14458e79b91ec.tar.xz linux-dev-be9370a7d8614d1fa54649c75de14458e79b91ec.zip | |
bpf: remove struct bpf_prog_type_list
There's no need to have struct bpf_prog_type_list since
it just contains a list_head, the type, and the ops
pointer. Since the types are densely packed and not
actually dynamically registered, it's much easier and
smaller to have an array of type->ops pointer. Also
initialize this array statically to remove code needed
to initialize it.
In order to save duplicating the list, move it to a new
header file and include it in the places needing it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf.h | 16 | ||||
| -rw-r--r-- | include/linux/bpf_types.h | 18 |
2 files changed, 23 insertions, 11 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index bbb513da5075..07fc02bb38e4 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -173,12 +173,6 @@ struct bpf_verifier_ops { union bpf_attr __user *uattr); }; -struct bpf_prog_type_list { - struct list_head list_node; - const struct bpf_verifier_ops *ops; - enum bpf_prog_type type; -}; - struct bpf_prog_aux { atomic_t refcnt; u32 used_map_cnt; @@ -243,7 +237,11 @@ int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr, #ifdef CONFIG_BPF_SYSCALL DECLARE_PER_CPU(int, bpf_prog_active); -void bpf_register_prog_type(struct bpf_prog_type_list *tl); +#define BPF_PROG_TYPE(_id, _ops) \ + extern const struct bpf_verifier_ops _ops; +#include <linux/bpf_types.h> +#undef BPF_PROG_TYPE + void bpf_register_map_type(struct bpf_map_type_list *tl); struct bpf_prog *bpf_prog_get(u32 ufd); @@ -306,10 +304,6 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size) /* verify correctness of eBPF program */ int bpf_check(struct bpf_prog **fp, union bpf_attr *attr); #else -static inline void bpf_register_prog_type(struct bpf_prog_type_list *tl) -{ -} - static inline struct bpf_prog *bpf_prog_get(u32 ufd) { return ERR_PTR(-EOPNOTSUPP); diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h new file mode 100644 index 000000000000..68b0a9811216 --- /dev/null +++ b/include/linux/bpf_types.h @@ -0,0 +1,18 @@ +/* internal file - do not include directly */ + +#ifdef CONFIG_NET +BPF_PROG_TYPE(BPF_PROG_TYPE_SOCKET_FILTER, sk_filter_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_SCHED_CLS, tc_cls_act_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_SCHED_ACT, tc_cls_act_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_XDP, xdp_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_CGROUP_SKB, cg_skb_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_CGROUP_SOCK, cg_sock_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_LWT_IN, lwt_inout_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_LWT_OUT, lwt_inout_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_LWT_XMIT, lwt_xmit_prog_ops) +#endif +#ifdef CONFIG_BPF_EVENTS +BPF_PROG_TYPE(BPF_PROG_TYPE_KPROBE, kprobe_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_TRACEPOINT, tracepoint_prog_ops) +BPF_PROG_TYPE(BPF_PROG_TYPE_PERF_EVENT, perf_event_prog_ops) +#endif |