linux-kernel - Re: [PATCH AUTOSEL 4.14 08/10] MIPS: Alchemy: fix dbdma2

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Message-ID: <ZI7GorATfHRiqOn9@duo.ucw.cz>
Date:   Sun, 18 Jun 2023 10:56:02 +0200
From:   Pavel Machek <pavel@...x.de>
To:     Manuel Lauss <manuel.lauss@...il.com>
Cc:     Pavel Machek <pavel@...x.de>, Sasha Levin <sashal@...nel.org>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 4.14 08/10] MIPS: Alchemy: fix dbdma2

On Sun 2023-06-18 07:43:10, Manuel Lauss wrote:
> On Fri, Jun 16, 2023 at 9:33 PM Pavel Machek <pavel@...x.de> wrote:
> 
> > Hi!
> >
> > > From: Manuel Lauss <manuel.lauss@...il.com>
> > >
> > > [ Upstream commit 2d645604f69f3a772d58ead702f9a8e84ab2b342 ]
> > >
> > > Various fixes for the Au1200/Au1550/Au1300 DBDMA2 code:
> > >
> > > - skip cache invalidation if chip has working coherency circuitry.
> > > - invalidate KSEG0-portion of the (physical) data address.
> > > - force the dma channel doorbell write out to bus immediately with
> > >   a sync.
> > >
> > > Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> > > Signed-off-by: Sasha Levin <sashal@...nel.org>
> >
> > I believe author's signoff is missing here.
> >
> 
> As the author, I say this patch should not be applied to 4.xx at all.  Same
> for my other 2 MIPS patches.

Thanks for info, where is the threshold, do we need them for 5.10?

Sasha, please drop.

Best regards,
									Pavel

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