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From: Sasha Levin <sashal@kernel.org>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: open list <linux-kernel@vger.kernel.org>,
	linux- stable <stable@vger.kernel.org>,
	Raviteja Narayanam <raviteja.narayanam@xilinx.com>,
	Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-serial@vger.kernel.org,
	Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH AUTOSEL 4.4 42/64] serial: uartps: Wait for tx_empty in console setup
Date: Mon, 28 Sep 2020 18:00:25 -0400
Message-ID: <20200928220025.GD2219727@sasha-vm> (raw)
In-Reply-To: <CA+G9fYsi87yT-bEdpQ+7ca5gH_QcWHmticMSxKuCSt+SLrWj-A@mail.gmail.com>

On Tue, Sep 29, 2020 at 01:46:59AM +0530, Naresh Kamboju wrote:
>On Fri, 18 Sep 2020 at 07:51, Sasha Levin <sashal@kernel.org> wrote:
>>
>> From: Raviteja Narayanam <raviteja.narayanam@xilinx.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@xilinx.com>
>> Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
>> Link: https://lore.kernel.org/r/1586413563-29125-2-git-send-email-raviteja.narayanam@xilinx.com
>> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>
>stable rc branch 4.4 arm64 build broken.
>
>../drivers/tty/serial/xilinx_uartps.c: In function ‘cdns_uart_console_setup’:
>../drivers/tty/serial/xilinx_uartps.c:1170:40: error: ‘TX_TIMEOUT’
>undeclared (first use in this function)
> 1170 |  time_out = jiffies + usecs_to_jiffies(TX_TIMEOUT);
>                                                                      ^~~~~~~~~~
>Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>

Dropped, thanks!

-- 
Thanks,
Sasha

  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200918021643.2067895-1-sashal@kernel.org>
2020-09-18  2:16 ` [PATCH AUTOSEL 4.4 36/64] serial: 8250_omap: Fix sleeping function called from invalid context during probe Sasha Levin
2020-09-18  2:16 ` [PATCH AUTOSEL 4.4 42/64] serial: uartps: Wait for tx_empty in console setup Sasha Levin
2020-09-28 20:16   ` Naresh Kamboju
2020-09-28 22:00     ` Sasha Levin [this message]
2020-09-18  2:16 ` [PATCH AUTOSEL 4.4 51/64] tty: serial: samsung: Correct clock selection logic Sasha Levin

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