[PATCH] bpf: Make function btf_name_offset_valid static

From: Mathieu Malaterre
Date: Wed Jan 16 2019 - 14:29:53 EST


Initially in commit 69b693f0aefa ("bpf: btf: Introduce BPF Type Format
(BTF)") the function 'btf_name_offset_valid' was introduced as static
function it was later on changed to a non-static one, and then finally
in commit c454a46b5efd ("bpf: Add bpf_line_info support") the function
prototype was removed.

Revert back to original implementation and make the function static.
Remove warning triggered with W=1:

kernel/bpf/btf.c:470:6: warning: no previous prototype for 'btf_name_offset_valid' [-Wmissing-prototypes]

Signed-off-by: Mathieu Malaterre <malat@xxxxxxxxxx>
---
kernel/bpf/btf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index a2f53642592b..befe570be5ba 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -467,7 +467,7 @@ static const struct btf_kind_operations *btf_type_ops(const struct btf_type *t)
return kind_ops[BTF_INFO_KIND(t->info)];
}

-bool btf_name_offset_valid(const struct btf *btf, u32 offset)
+static bool btf_name_offset_valid(const struct btf *btf, u32 offset)
{
return BTF_STR_OFFSET_VALID(offset) &&
offset < btf->hdr.str_len;
--
2.19.2