I'm not sure why the restriction was added,
but I can't access pointers to POD types like
const char * when probing vfs_read function.
Removing the check and allow non struct type
access in context.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
kernel/bpf/btf.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index ed2075884724..ae90f60ac1b8 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3712,12 +3712,6 @@ bool btf_ctx_access(int off, int size, enum bpf_access_type type,
/* skip modifiers */
while (btf_type_is_modifier(t))
t = btf_type_by_id(btf, t->type);
- if (!btf_type_is_struct(t)) {
- bpf_log(log,
- "func '%s' arg%d type %s is not a struct\n",
- tname, arg, btf_kind_str[BTF_INFO_KIND(t->info)]);
- return false;
- }
bpf_log(log, "func '%s' arg%d has btf_id %d type %s '%s'\n",
tname, arg, info->btf_id, btf_kind_str[BTF_INFO_KIND(t->info)],
__btf_name_by_offset(btf, t->name_off));
--
2.21.1
