[Bugfix] Fix parsing of `--disable-mm-preprocessor-cache` (#22909)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

[Bugfix] Fix parsing of `--disable-mm-preprocessor-cache` (#22909)
Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
dbe29804 · Cyrus Leung · GitHub · 625ccd1c · dbe29804
Unverified Commit dbe29804 authored Aug 14, 2025 by Cyrus Leung Committed by GitHub Aug 14, 2025
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vllm/engine/arg_utils.py vllm/engine/arg_utils.py +1 -1

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--- a/vllm/engine/arg_utils.py
+++ b/vllm/engine/arg_utils.py
@@ -711,7 +711,7 @@ class EngineArgs:
            "--mm-processor-cache-gb",
            **multimodal_kwargs["mm_processor_cache_gb"])
        multimodal_group.add_argument("--disable-mm-preprocessor-cache",
-                                      type=bool,
+                                      action="store_true",
                                      deprecated=True)
        multimodal_group.add_argument(
            "--interleave-mm-strings",