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| author | Daniel T. Lee <danieltimlee@gmail.com> | 2023-01-15 16:16:09 +0900 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-01-15 13:32:45 -0800 |
| commit | a1f93c8fb0a836b6c891e51729f6cb98a1da47ba (patch) | |
| tree | a37d83ff9e419de041007e34eb30ce24fc86a6e5 /samples | |
| parent | 58e975d014e1e31bd1586be7d2be6d61bd3e3ada (diff) | |
| download | lwn-a1f93c8fb0a836b6c891e51729f6cb98a1da47ba.tar.gz lwn-a1f93c8fb0a836b6c891e51729f6cb98a1da47ba.zip | |
samples/bpf: replace legacy map with the BTF-defined map
With libbpf 1.0 release, support for legacy BPF map declaration syntax
had been dropped. If you run a program using legacy BPF in the latest
libbpf, the following error will be output.
libbpf: map 'lwt_len_hist_map' (legacy): legacy map definitions are deprecated, use BTF-defined maps instead
libbpf: Use of BPF_ANNOTATE_KV_PAIR is deprecated, use BTF-defined maps in .maps section instead
This commit replaces legacy map with the BTF-defined map.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Link: https://lore.kernel.org/r/20230115071613.125791-7-danieltimlee@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/lwt_len_hist_kern.c | 24 | ||||
| -rw-r--r-- | samples/bpf/test_cgrp2_tc_kern.c | 25 |
2 files changed, 14 insertions, 35 deletions
diff --git a/samples/bpf/lwt_len_hist_kern.c b/samples/bpf/lwt_len_hist_kern.c index 1fa14c54963a..44ea7b56760e 100644 --- a/samples/bpf/lwt_len_hist_kern.c +++ b/samples/bpf/lwt_len_hist_kern.c @@ -16,23 +16,13 @@ #include <uapi/linux/in.h> #include <bpf/bpf_helpers.h> -struct bpf_elf_map { - __u32 type; - __u32 size_key; - __u32 size_value; - __u32 max_elem; - __u32 flags; - __u32 id; - __u32 pinning; -}; - -struct bpf_elf_map SEC("maps") lwt_len_hist_map = { - .type = BPF_MAP_TYPE_PERCPU_HASH, - .size_key = sizeof(__u64), - .size_value = sizeof(__u64), - .pinning = 2, - .max_elem = 1024, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_HASH); + __type(key, u64); + __type(value, u64); + __uint(pinning, LIBBPF_PIN_BY_NAME); + __uint(max_entries, 1024); +} lwt_len_hist_map SEC(".maps"); static unsigned int log2(unsigned int v) { diff --git a/samples/bpf/test_cgrp2_tc_kern.c b/samples/bpf/test_cgrp2_tc_kern.c index 4dd532a312b9..737ce3eb8944 100644 --- a/samples/bpf/test_cgrp2_tc_kern.c +++ b/samples/bpf/test_cgrp2_tc_kern.c @@ -19,24 +19,13 @@ struct eth_hdr { unsigned short h_proto; }; -#define PIN_GLOBAL_NS 2 -struct bpf_elf_map { - __u32 type; - __u32 size_key; - __u32 size_value; - __u32 max_elem; - __u32 flags; - __u32 id; - __u32 pinning; -}; - -struct bpf_elf_map SEC("maps") test_cgrp2_array_pin = { - .type = BPF_MAP_TYPE_CGROUP_ARRAY, - .size_key = sizeof(uint32_t), - .size_value = sizeof(uint32_t), - .pinning = PIN_GLOBAL_NS, - .max_elem = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_CGROUP_ARRAY); + __type(key, u32); + __type(value, u32); + __uint(pinning, LIBBPF_PIN_BY_NAME); + __uint(max_entries, 1); +} test_cgrp2_array_pin SEC(".maps"); SEC("filter") int handle_egress(struct __sk_buff *skb) |