diff options
| author |   Alan Maguire <alan.maguire@oracle.com> | 2020-09-28 12:31:09 +0100 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-09-28 18:26:58 -0700 |
| commit | eb411377aed9e27835e77ee0710ee8f4649958f3 (patch) | |
| tree | 90908f665c621d466093f55d1cbc4479e0dcd24a /kernel/bpf/btf.c | |
| parent | selftests/bpf: Fix overflow tests to reflect iter size increase (diff) | |
| download | linux-dev-eb411377aed9e27835e77ee0710ee8f4649958f3.tar.xz linux-dev-eb411377aed9e27835e77ee0710ee8f4649958f3.zip | |
bpf: Add bpf_seq_printf_btf helper
A helper is added to allow seq file writing of kernel data
structures using vmlinux BTF. Its signature is
long bpf_seq_printf_btf(struct seq_file *m, struct btf_ptr *ptr,
u32 btf_ptr_size, u64 flags);
Flags and struct btf_ptr definitions/use are identical to the
bpf_snprintf_btf helper, and the helper returns 0 on success
or a negative error value.
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/1601292670-1616-8-git-send-email-alan.maguire@oracle.com
Diffstat (limited to 'kernel/bpf/btf.c')
| -rw-r--r-- | kernel/bpf/btf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index dcdd7109aa29..498e5e553825 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -5346,8 +5346,8 @@ static void btf_seq_show(struct btf_show *show, const char *fmt, seq_vprintf((struct seq_file *)show->target, fmt, args); } -static int btf_type_seq_show_flags(const struct btf *btf, u32 type_id, - void *obj, struct seq_file *m, u64 flags) +int btf_type_seq_show_flags(const struct btf *btf, u32 type_id, + void *obj, struct seq_file *m, u64 flags) { struct btf_show sseq; |