From: sashiko-bot@kernel.org
To: "Nicolai Buchwitz" <nb@tipi-net.de>
Cc: linux-usb@vger.kernel.org
Subject: Re: [PATCH net 2/2] net: usb: cdc_mbim: don't enable BHs in tx_fixup under netpoll
Date: Tue, 20 Oct 2026 08:59:18 +0000 [thread overview]
Message-ID: <sashiko-outbox-178671@kernel.org> (raw)
In-Reply-To: <20261020-cdc-ncm-netpoll-v1-2-682184384b49@tipi-net.de>
> cdc_mbim_tx_fixup() has the same spin_unlock_bh() as cdc_ncm_tx_fixup().
> Under netpoll it runs pending softirqs while the txq lock is held, and
> a transmit from one of them spins on that lock.
>
> Use spin_lock_irqsave() as in cdc_ncm.
>
> Fixes: 9bf211a30b3f ("net: cdc_mbim: adding MBIM driver")
> Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261020-cdc-ncm-netpoll-v1-0-682184384b49@tipi-net.de?part=2
prev parent reply other threads:[~2026-10-20 8:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 7:16 [PATCH net 0/2] net: usb: cdc_ncm/cdc_mbim: fix netpoll lockup in tx_fixup Nicolai Buchwitz
2026-10-20 7:16 ` [PATCH net 1/2] net: usb: cdc_ncm: don't enable BHs in tx_fixup under netpoll Nicolai Buchwitz
2026-10-20 8:59 ` sashiko-bot
2026-10-20 7:16 ` [PATCH net 2/2] net: usb: cdc_mbim: " Nicolai Buchwitz
2026-10-20 8:59 ` sashiko-bot [this message]
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