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authorAndrii Nakryiko <andrii@kernel.org>2021-10-25 15:45:31 -0700
committerAlexei Starovoitov <ast@kernel.org>2021-10-25 18:37:21 -0700
commitc4813e969ac471af730902377a2656b6b1b92c4d (patch)
tree20e332370af87375b7a5675cd45e7a0705decfb6 /tools/lib
parente21d585cb3db65a207cd338c74b9886090ef1ceb (diff)
libbpf: Deprecate ambiguously-named bpf_program__size() API
The name of the API doesn't convey clearly that this size is in number of bytes (there needed to be a separate comment to make this clear in libbpf.h). Further, measuring the size of BPF program in bytes is not exactly the best fit, because BPF programs always consist of 8-byte instructions. As such, bpf_program__insn_cnt() is a better alternative in pretty much any imaginable case. So schedule bpf_program__size() deprecation starting from v0.7 and it will be removed in libbpf 1.0. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211025224531.1088894-5-andrii@kernel.org
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/bpf/libbpf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 449eeed80be6..e1900819bfab 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -224,6 +224,7 @@ LIBBPF_API bool bpf_program__autoload(const struct bpf_program *prog);
LIBBPF_API int bpf_program__set_autoload(struct bpf_program *prog, bool autoload);
/* returns program size in bytes */
+LIBBPF_DEPRECATED_SINCE(0, 7, "use bpf_program__insn_cnt() instead")
LIBBPF_API size_t bpf_program__size(const struct bpf_program *prog);
struct bpf_insn;