diff mbox series

[bpf-next,v5,1/9] bpf: Remove unnecessary checks on the offset of btf_field.

Message ID 20240510011312.1488046-2-thinker.li@gmail.com (mailing list archive)
State New
Delegated to: BPF
Headers show
Series Enable BPF programs to declare arrays of kptr, bpf_rb_root, and bpf_list_head. | expand

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Commit Message

Kui-Feng Lee May 10, 2024, 1:13 a.m. UTC 
reg_find_field_offset() always return a btf_field with a matching offset
value. Checking the offset of the returned btf_field is unnecessary.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
---
 kernel/bpf/verifier.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 9e3aba08984e..3cc8e68b5b73 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -11640,7 +11640,7 @@  __process_kf_arg_ptr_to_graph_node(struct bpf_verifier_env *env,
 
 	node_off = reg->off + reg->var_off.value;
 	field = reg_find_field_offset(reg, node_off, node_field_type);
-	if (!field || field->offset != node_off) {
+	if (!field) {
 		verbose(env, "%s not found at offset=%u\n", node_type_name, node_off);
 		return -EINVAL;
 	}