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SubjectRe: [PATCH net] net: mvpp2: fix a txq_done race condition
From: Antoine Tenart <>
Date: Tue, 18 Sep 2018 16:58:47 +0200

> When no Tx IRQ is available, the txq_done() routine (called from
> tx_done()) shouldn't be called from the polling function, as in such
> case it is already called in the Tx path thanks to an hrtimer. This
> mostly occurred when using PPv2.1, as the engine then do not have Tx
> IRQs.
> Fixes: edc660fa09e2 ("net: mvpp2: replace TX coalescing interrupts with hrtimer")
> Reported-by: Stefan Chulski <>
> Signed-off-by: Antoine Tenart <>

Applied and queued up for -stable.

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