linux-kernel - [PATCH v2 bpf-next 2/4] libbpf: make skip_mods_and

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Date:   Sun, 17 Jan 2021 22:16:02 +0000
From:   Alan Maguire <alan.maguire@...cle.com>
To:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org
Cc:     kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org, morbo@...gle.com,
        shuah@...nel.org, bpf@...r.kernel.org, netdev@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alan Maguire <alan.maguire@...cle.com>
Subject: [PATCH v2 bpf-next 2/4] libbpf: make skip_mods_and_typedefs available internally in libbpf

btf_dump.c will need it for type-based data display.

Signed-off-by: Alan Maguire <alan.maguire@...cle.com>
---
 tools/lib/bpf/libbpf.c          | 4 +---
 tools/lib/bpf/libbpf_internal.h | 2 ++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 2abbc38..4ef84e1 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -73,8 +73,6 @@
 #define __printf(a, b)	__attribute__((format(printf, a, b)))
 
 static struct bpf_map *bpf_object__add_map(struct bpf_object *obj);
-static const struct btf_type *
-skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id);
 
 static int __base_pr(enum libbpf_print_level level, const char *format,
 		     va_list args)
@@ -1885,7 +1883,7 @@ static int bpf_object__init_user_maps(struct bpf_object *obj, bool strict)
 	return 0;
 }
 
-static const struct btf_type *
+const struct btf_type *
 skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id)
 {
 	const struct btf_type *t = btf__type_by_id(btf, id);
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index 969d0ac..c25d2df 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -108,6 +108,8 @@ static inline void *libbpf_reallocarray(void *ptr, size_t nmemb, size_t size)
 void *btf_add_mem(void **data, size_t *cap_cnt, size_t elem_sz,
 		  size_t cur_cnt, size_t max_cnt, size_t add_cnt);
 int btf_ensure_mem(void **data, size_t *cap_cnt, size_t elem_sz, size_t need_cnt);
+const struct btf_type *skip_mods_and_typedefs(const struct btf *btf, __u32 id,
+					      __u32 *res_id);
 
 static inline bool libbpf_validate_opts(const char *opts,
 					size_t opts_sz, size_t user_sz,
-- 
1.8.3.1