Commit 02a8c817 authored by Alban Crequy's avatar Alban Crequy Committed by Daniel Borkmann
Browse files

bpf: add map helper functions push, pop, peek in more BPF programs 



commit f1a2e44a ("bpf: add queue and stack maps") introduced new BPF
helper functions:
- BPF_FUNC_map_push_elem
- BPF_FUNC_map_pop_elem
- BPF_FUNC_map_peek_elem

but they were made available only for network BPF programs. This patch
makes them available for tracepoint, cgroup and lirc programs.

Signed-off-by: default avatarAlban Crequy <alban@kinvolk.io>
Cc: Mauricio Vasquez B <mauricio.vasquez@polito.it>
Acked-by: default avatarSong Liu <songliubraving@fb.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent a5cb3346

drivers/media/rc/bpf-lirc.c

+6 −0
Original line number Diff line number Diff line
@@ -97,6 +97,12 @@ lirc_mode2_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 
		return &bpf_map_update_elem_proto;

	case BPF_FUNC_map_delete_elem:

		return &bpf_map_delete_elem_proto;

	case BPF_FUNC_map_push_elem:

		return &bpf_map_push_elem_proto;

	case BPF_FUNC_map_pop_elem:

		return &bpf_map_pop_elem_proto;

	case BPF_FUNC_map_peek_elem:

		return &bpf_map_peek_elem_proto;

	case BPF_FUNC_ktime_get_ns:

		return &bpf_ktime_get_ns_proto;

	case BPF_FUNC_tail_call:

kernel/bpf/cgroup.c

+6 −0
Original line number Diff line number Diff line
@@ -713,6 +713,12 @@ cgroup_base_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 
		return &bpf_map_update_elem_proto;

	case BPF_FUNC_map_delete_elem:

		return &bpf_map_delete_elem_proto;

	case BPF_FUNC_map_push_elem:

		return &bpf_map_push_elem_proto;

	case BPF_FUNC_map_pop_elem:

		return &bpf_map_pop_elem_proto;

	case BPF_FUNC_map_peek_elem:

		return &bpf_map_peek_elem_proto;

	case BPF_FUNC_get_current_uid_gid:

		return &bpf_get_current_uid_gid_proto;

	case BPF_FUNC_get_local_storage:

kernel/trace/bpf_trace.c

+6 −0
Original line number Diff line number Diff line
@@ -569,6 +569,12 @@ tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 
		return &bpf_map_update_elem_proto;

	case BPF_FUNC_map_delete_elem:

		return &bpf_map_delete_elem_proto;

	case BPF_FUNC_map_push_elem:

		return &bpf_map_push_elem_proto;

	case BPF_FUNC_map_pop_elem:

		return &bpf_map_pop_elem_proto;

	case BPF_FUNC_map_peek_elem:

		return &bpf_map_peek_elem_proto;

	case BPF_FUNC_probe_read:

		return &bpf_probe_read_proto;

	case BPF_FUNC_ktime_get_ns:

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