|WARNING| gro: fix packet type comparisons

[dpdklab at iol.unh.edu]

Test-Label: ai-code-review
Test-Status: WARNING
https://dpdk.org/patch/171584

_AI Code Review_

=== Patch Review: series.patch (via Claude) ===
Review date: 2026-10-17

The provided patch file contains an HTML error page (504 Gateway Time-out from nginx) rather than actual DPDK patch content. This is not a valid DPDK patch that can be reviewed.

To perform a meaningful code review, I would need:
- A valid unified diff or git format-patch output
- C source code changes to DPDK
- Commit message with proper formatting
- File modifications showing added/removed lines

Please provide the actual patch content in git format-patch or unified diff format.

Review-Result: ERROR