[PATCH bpf-next] libbpf: constify few bpf_program getters
From: Andrii Nakryiko <andrii@kernel.org>
Date: 2021-03-24 17:30:48
bpf_program__get_type() and bpf_program__get_expected_attach_type() shouldn't modify given bpf_program, so mark input parameter as const struct bpf_program. This eliminates unnecessary compilation warnings or explicit casts in user programs. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> --- tools/lib/bpf/libbpf.c | 4 ++-- tools/lib/bpf/libbpf.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 058b643cbcb1..cac56381ee59 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c@@ -8457,7 +8457,7 @@ int bpf_program__nth_fd(const struct bpf_program *prog, int n) return fd; } -enum bpf_prog_type bpf_program__get_type(struct bpf_program *prog) +enum bpf_prog_type bpf_program__get_type(const struct bpf_program *prog) { return prog->type; }
@@ -8502,7 +8502,7 @@ BPF_PROG_TYPE_FNS(extension, BPF_PROG_TYPE_EXT); BPF_PROG_TYPE_FNS(sk_lookup, BPF_PROG_TYPE_SK_LOOKUP); enum bpf_attach_type -bpf_program__get_expected_attach_type(struct bpf_program *prog) +bpf_program__get_expected_attach_type(const struct bpf_program *prog) { return prog->expected_attach_type; }
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index a1a424b9b8ff..89ade7d7b31c 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h@@ -361,12 +361,12 @@ LIBBPF_API int bpf_program__set_struct_ops(struct bpf_program *prog); LIBBPF_API int bpf_program__set_extension(struct bpf_program *prog); LIBBPF_API int bpf_program__set_sk_lookup(struct bpf_program *prog); -LIBBPF_API enum bpf_prog_type bpf_program__get_type(struct bpf_program *prog); +LIBBPF_API enum bpf_prog_type bpf_program__get_type(const struct bpf_program *prog); LIBBPF_API void bpf_program__set_type(struct bpf_program *prog, enum bpf_prog_type type); LIBBPF_API enum bpf_attach_type -bpf_program__get_expected_attach_type(struct bpf_program *prog); +bpf_program__get_expected_attach_type(const struct bpf_program *prog); LIBBPF_API void bpf_program__set_expected_attach_type(struct bpf_program *prog, enum bpf_attach_type type);
--
2.30.2