|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

## Analysis

This patch reorders includes in `lib/eal/linux/eal_vfio_cdev.c` to fix a build failure with old Linux headers. The fix moves UAPI headers before system headers to ensure compatibility definitions are available.

## Findings

### ERRORS

None.

### WARNINGS

None.

### INFO

**Include order deviation documented:**
The patch intentionally violates the standard DPDK include order (system headers before UAPI headers) to work around a kernel header interaction. This is acceptable given the technical justification in the commit message, but worth noting for maintainability. The comment in the commit message explains the issue: `__counted_by` compatibility definitions from the imported UAPI headers must be processed before system headers that indirectly include `linux/stddef.h`.

**Pre-existing: Duplicate `Acked-by` tag:**
The patch contains two identical `Acked-by: David Marchand <david.marchand at redhat.com>` tags. This is a commit message formatting issue, not a code issue, but is unusual and should typically be deduplicated before applying.

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The code change itself is correct: it solves the build failure by ensuring the imported UAPI headers with their compatibility definitions are included first. The deviation from standard include order is justified and documented.

Review-Result: CLEAN