linux-kernel - Re: [PATCH AUTOSEL 4.9 64/90] serial: uartps: Wait for tx

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Message-ID: <20200929065902.GD2439787@kroah.com>
Date:   Tue, 29 Sep 2020 08:59:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     Sasha Levin <sashal@...nel.org>,
        Raviteja Narayanam <raviteja.narayanam@...inx.com>,
        open list <linux-kernel@...r.kernel.org>,
        linux- stable <stable@...r.kernel.org>,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>,
        linux-serial@...r.kernel.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        lkft-triage@...ts.linaro.org
Subject: Re: [PATCH AUTOSEL 4.9 64/90] serial: uartps: Wait for tx_empty in
 console setup

On Tue, Sep 29, 2020 at 01:43:22AM +0530, Naresh Kamboju wrote:
> On Tue, 29 Sep 2020 at 01:41, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> >
> > On Fri, 18 Sep 2020 at 07:55, Sasha Levin <sashal@...nel.org> wrote:
> > >
> > > From: Raviteja Narayanam <raviteja.narayanam@...inx.com>
> > >
> > > [ Upstream commit 42e11948ddf68b9f799cad8c0ddeab0a39da33e8 ]
> > >
> > > On some platforms, the log is corrupted while console is being
> > > registered. It is observed that when set_termios is called, there
> > > are still some bytes in the FIFO to be transmitted.
> > >
> > > So, wait for tx_empty inside cdns_uart_console_setup before calling
> > > set_termios.
> > >
> > > Signed-off-by: Raviteja Narayanam <raviteja.narayanam@...inx.com>
> > > Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
> > > Link: https://lore.kernel.org/r/1586413563-29125-2-git-send-email-raviteja.narayanam@xilinx.com
> > > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > > Signed-off-by: Sasha Levin <sashal@...nel.org>
> >
> > stable rc 4.9 arm64 build broken.
> 
> and stable rc 4.9 arm build broken.

Thanks, I've queued up the dependant patch, somehow Sasha's builders
must have missed this :)

greg k-h