net: atl1: fix soft lockup on out-of-range cmb_tpd_next_to_clean read

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Same issue as atl1c (see the first commit in this series, "net:
atl1c: fix soft lockup on out-of-range tpd_cons read"): the hardware
can report an out-of-range cmb_tpd_next_to_clean (seen as 0xffff)
while the PCIe link/MAC is resetting. An out-of-range value can
never be reached and the loop below would spin forever. Treat it as
"nothing new to clean" instead.

Fixes: f3cc28c797 ("Add Attansic L1 ethernet driver.")
Cc: stable@vger.kernel.org
Signed-off-by: Gajdos Tamás <tamas@rimpianto.com>
Link: https://patch.msgid.link/20260921091334.3571525-4-tamas@rimpianto.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Gajdos Tamás 2026-09-21 11:13:34 +02:00 • committed by Paolo Abeni

parent 374bf9e4b9

commit 43e746821f

1 changed files with 3 additions and 0 deletions

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drivers/net/ethernet/atheros/atlx/atl1.c

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