Fix ignore_layers not working for FP8 models

[Copilot]

• Understand the issue: ignore_layers argument not working for FP8 models
• Root cause: get_fp_layer_names only checks SUPPORTED_LAYER_TYPES which doesn't include FP8Linear
• Fix get_fp_layer_names to also check INNER_SUPPORTED_LAYER_TYPES (FP8Linear)
• Test the fix with a minimal test case
• Add test to existing test suite for FP8 models
• Add comprehensive unit tests for get_fp_layer_names function
• Address code review feedback (improved mocking, removed debug print)
• Run existing tests to ensure no regression
• Security scan passed (0 vulnerabilities found)
• Final code review passed (0 issues found)
• Address PR review comments: removed unused import, added None test, fixed pre-commit issues

Changes in this commit:

• Removed unused import of INNER_SUPPORTED_LAYER_TYPES from test file
• Added test_none_ignore_layers to test None input handling
• Applied pre-commit formatting (black, isort)

Original prompt

#1283

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[Copilot]

Pull request overview

This PR fixes a bug where the --ignore_layers argument fails to exclude layers from quantization in FP8 models. The root cause was that get_fp_layer_names() only checked SUPPORTED_LAYER_TYPES but FP8 models contain FP8Linear layers which exist only in INNER_SUPPORTED_LAYER_TYPES.

Changes:

• Updated get_fp_layer_names() to check both SUPPORTED_LAYER_TYPES and INNER_SUPPORTED_LAYER_TYPES
• Added comprehensive unit tests for layer name matching with regular Linear and FP8Linear layers
• Added integration test validating end-to-end behavior with FP8 models

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
auto_round/compressors/utils.py	Modified get_fp_layer_names() to check both layer type lists, enabling FP8Linear layer detection
test/test_cpu/utils/test_compressor_utils.py	Added unit tests covering regular Linear layers, FP8Linear layers, pattern matching, and edge cases
test/test_cuda/advanced/test_fp8_input.py	Added integration test validating ignore_layers functionality with FP8 models

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[yiliu30]

@copilot Please fix the pre-commit issue

[Copilot]

@copilot Please fix the pre-commit issue

Fixed pre-commit issues (black, isort formatting) in commit 17fbf3a. All pre-commit checks now pass.

[n1ck-guo]

LGTM

[github-actions]

This pull request has been automatically marked as stale because it has not had any activity within 90 days. It will be automatically closed if no further activity occurs within 30 days. Leave a comment if you feel this pull request should remain open. Thank you!