linux-kernel - Re: [PATCH v2 2/2] genirq: Synchronize only with single thread on free

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Date:   Sun, 24 Jun 2018 11:49:10 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Lukas Wunner <lukas@...ner.de>
cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH v2 2/2] genirq: Synchronize only with single thread on
 free_irq()

On Sun, 24 Jun 2018, Lukas Wunner wrote:

> When pciehp is converted to threaded IRQ handling, removal of unplugged
> devices below a PCIe hotplug port happens synchronously in the IRQ
> thread.  Removal of devices typically entails a call to free_irq() by
> their drivers.

Is this an actual mainline problem or did you discover that in course of
upcoming work?

Thanks,

	tglx