From: Marc Kleine-Budde <mkl@pengutronix.de>
To: linux-can@vger.kernel.org
Cc: kernel@pengutronix.de
Subject: [PATCH can-next 0/3] can: rx-offload: performance improvements + function be be called from threaded IRQ
Date: Sat, 24 Jul 2021 22:47:43 +0200 [thread overview]
Message-ID: <20210724204745.736053-1-mkl@pengutronix.de> (raw)
Hello,
adding a skb to skb_queue in rx_offoad requires to take a lock. By
adding an unlocked skb queue that is appended at the end of the ISR
only one lock needs to be taken.
Further the infamous "Non-RCU local softirq work is pending" error is
fixed by introducing a new can_rx_offload_threaded_irq_finish()
function to be used from threaded IRQ handlers.
regards,
Marc
next reply other threads:[~2021-07-24 20:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-24 20:47 Marc Kleine-Budde [this message]
2021-07-24 20:47 ` [PATCH can-next 1/3] can: rx-offload: add skb queue for use during ISR Marc Kleine-Budde
2021-07-24 20:47 ` [PATCH can-next 2/3] can: rx-offload: can_rx_offload_irq_finish(): directly call napi_schedule() Marc Kleine-Budde
2021-07-24 20:47 ` [PATCH can-next 3/3] can: rx-offload: can_rx_offload_threaded_irq_finish(): add new function to be called from threaded interrupt Marc Kleine-Budde
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