net: ethernet: cortina: Finish RX updates before NAPI completion

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napi_complete_done() releases ownership of the NAPI instance, but the
Gemini poll keeps the RX statistics writer section open and updates the
free queue after calling it. A new poll can therefore start while the old
writer is still active.

Finish the statistics and free queue updates before releasing ownership.
Only re-enable RX interrupts when napi_complete_done() reports successful
completion.

Fixes: 4d5ae32f5e ("net: ethernet: Add a driver for Gemini gigabit ethernet")
Suggested-by: Joe Damato <joe@dama.to>
Assisted-by: LLM
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260903-gemini-ethernet-fixes-v2-2-2bbbd598ca6e@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Linus Walleij 2026-09-03 23:45:30 +02:00 • committed by Paolo Abeni

parent a0de06d0da

commit baa26841cb

1 changed files with 6 additions and 6 deletions

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drivers/net/ethernet/cortina/gemini.c

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