Qiu a88937f5cb [bugfix](cp) replace None with zeros/inf tensor to avoid TypeError (#5837) ...

### What this PR does / why we need it?
When there is no kv cache in some devices, the `_compute_prefill_context
func` will return `None`, which is unexecpted. This PR replaces None
with full zeros/-inf tensors to avoid TypeError.

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
```bash
pytest tests/e2e/multicard/4-cards/long_sequence/test_chunked_prefill.py -k test_models_chunked_prefill_with_empty_kvcache
```

- vLLM version: v0.13.0
- vLLM main:
2f4e6548ef

---------

Signed-off-by: QiuChunshuo <qiuchunshuo@huawei.com>

2026-01-14 20:57:48 +08:00

..

2-cards

[Quantization] Support compressed tensors moe w8a8 int8 dynamic weight (#5718)

2026-01-14 09:17:26 +08:00

4-cards

[bugfix](cp) replace None with zeros/inf tensor to avoid TypeError (#5837)

2026-01-14 20:57:48 +08:00