bpf: Add base proto function for cgroup-bpf programs (b1cd609d) · Commits · 戴 / test

Currently kernel/bpf/cgroup.c contains only one program type and one proto function cgroup_dev_func_proto(). It'd be useful to have base proto function that can be reused for new cgroup-bpf program types coming soon. Introduce cgroup_base_func_proto(). Signed-off-by:

Andrey Ignatov <rdna@fb.com> Signed-off-by:

Alexei Starovoitov <ast@kernel.org>

kernel/bpf/cgroup.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -701,7 +701,7 @@ int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor,
		EXPORT_SYMBOL(__cgroup_bpf_check_dev_permission);

		static const struct bpf_func_proto *
		cgroup_dev_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
		cgroup_base_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
		{
		switch (func_id) {
		case BPF_FUNC_map_lookup_elem:
		@@ -725,6 +725,12 @@ cgroup_dev_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
		}
		}

		static const struct bpf_func_proto *
		cgroup_dev_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
		{
		return cgroup_base_func_proto(func_id, prog);
		}

		static bool cgroup_dev_is_valid_access(int off, int size,
		enum bpf_access_type type,
		const struct bpf_prog *prog,

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