|SUCCESS| vfio: fix cdev build with old Linux headers

[dpdklab at iol.unh.edu]

Test-Label: ai-code-review
Test-Status: SUCCESS
https://dpdk.org/patch/172349

_AI Code Review_

=== Patch Review: series.patch (via Claude) ===
Review date: 2026-11-02

# DPDK Patch Review

## Summary
Reviewing patch: "vfio: fix cdev build with old Linux headers"

This patch addresses a build issue by reordering header includes to ensure imported UAPI headers with compatibility definitions are processed before system headers.

## ERRORS

None identified.

## WARNINGS

None identified.

## INFO

### Include Order Pattern
The patch moves UAPI includes before system includes, which deviates from the standard DPDK include order documented in AGENTS.md:
1. System/libc includes
2. DPDK EAL includes
3. DPDK misc library includes
4. Application-specific includes

However, the commit message provides clear justification: imported UAPI headers contain compatibility definitions (`__counted_by` fallback) that must be available before system headers that might indirectly include `linux/stddef.h`. This is a valid exception to the normal ordering rule when required for compilation compatibility.

The new order is:
1. Imported UAPI headers (with compat definitions)
2. System/libc includes
3. DPDK includes

This is acceptable given the technical constraint explained in the commit message.

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Review-Result: CLEAN