const struct bpf_verifier_state *src)
{
struct bpf_func_state *dst;
- u32 jmp_sz = sizeof(struct bpf_idx_pair) * src->jmp_history_cnt;
int i, err;
- if (dst_state->jmp_history_cnt < src->jmp_history_cnt) {
- kfree(dst_state->jmp_history);
- dst_state->jmp_history = kmalloc(jmp_sz, GFP_USER);
- if (!dst_state->jmp_history)
- return -ENOMEM;
- }
- memcpy(dst_state->jmp_history, src->jmp_history, jmp_sz);
+ dst_state->jmp_history = copy_array(dst_state->jmp_history, src->jmp_history,
+ src->jmp_history_cnt, sizeof(struct bpf_idx_pair),
+ GFP_USER);
+ if (!dst_state->jmp_history)
+ return -ENOMEM;
dst_state->jmp_history_cnt = src->jmp_history_cnt;
/* if dst has more stack frames then src frame, free them */