netdev - Re: [PATCH net] r8169: fix issue with forced threading in combination with shared interrupts

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Message-ID: <87wnz9b6v4.fsf@depni.sinp.msu.ru>
Date:   Thu, 29 Oct 2020 14:37:35 +0300
From:   Serge Belyshev <belyshev@...ni.sinp.msu.ru>
To:     Heiner Kallweit <hkallweit1@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>,
        Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net] r8169: fix issue with forced threading in
 combination with shared interrupts

> As reported by Serge flag IRQF_NO_THREAD causes an error if the
> interrupt is actually shared and the other driver(s) don't have this
> flag set. This situation can occur if a PCI(e) legacy interrupt is
> used in combination with forced threading.
> There's no good way to deal with this properly, therefore we have to
> remove flag IRQF_NO_THREAD. For fixing the original forced threading
> issue switch to napi_schedule().
>
> Fixes: 424a646e072a ("r8169: fix operation under forced interrupt threading")
> Link: https://www.spinics.net/lists/netdev/msg694960.html
> Reported-by: Serge Belyshev <belyshev@...ni.sinp.msu.ru>
> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
> ---

Thanks, that works for me.

Tested-by: Serge Belyshev <belyshev@...ni.sinp.msu.ru>