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Date:   Tue, 6 Oct 2020 21:36:34 +0200
From:   Pavel Machek <pavel@denx.de>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        Chris Packham <chris.packham@alliedtelesis.co.nz>,
        Mark Brown <broonie@kernel.org>,
        Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 4.19 21/38] spi: fsl-espi: Only process interrupts for
 expected events
Message-ID: <20201006193634.GB8771@duo.ucw.cz>
References: <20201005142108.650363140@linuxfoundation.org>
 <20201005142109.694666032@linuxfoundation.org>
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Hi!

> [ Upstream commit b867eef4cf548cd9541225aadcdcee644669b9e1 ]
>=20
> The SPIE register contains counts for the TX FIFO so any time the irq
> handler was invoked we would attempt to process the RX/TX fifos. Use the
> SPIM value to mask the events so that we only process interrupts that
> were expected.
>=20
> This was a latent issue exposed by commit 3282a3da25bd ("powerpc/64:
> Implement soft interrupt replay in C").

We don't seem to have commit 3282... in 4.19, so we don't need this
one in 4.19-stable according to the changelog.

Best regards,
								Pavel

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
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