Re: [PATCH net v3] net: phy: Tell caller result of phy_change()
From: David Miller
Date: Mon Mar 12 2018 - 10:34:15 EST
From: Brad Mouring <brad.mouring@xxxxxx>
Date: Thu, 8 Mar 2018 16:23:03 -0600
> In 664fcf123a30e (net: phy: Threaded interrupts allow some simplification)
> the phy_interrupt system was changed to use a traditional threaded
> interrupt scheme instead of a workqueue approach.
>
> With this change, the phy status check moved into phy_change, which
> did not report back to the caller whether or not the interrupt was
> handled. This means that, in the case of a shared phy interrupt,
> only the first phydev's interrupt registers are checked (since
> phy_interrupt() would always return IRQ_HANDLED). This leads to
> interrupt storms when it is a secondary device that's actually the
> interrupt source.
>
> Signed-off-by: Brad Mouring <brad.mouring@xxxxxx>
Applied and queued up for -stable, thanks.