Re: [PATCH AUTOSEL 4.4 42/64] serial: uartps: Wait for tx_empty in console setup

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Sep 29, 2020 at 01:46:59AM +0530, Naresh Kamboju wrote:
On Fri, 18 Sep 2020 at 07:51, Sasha Levin <sashal@xxxxxxxxxx> wrote:

From: Raviteja Narayanam <raviteja.narayanam@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1586413563-29125-2-git-send-email-raviteja.narayanam@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

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@xxxxxxxxxx>

Dropped, thanks!

--
Thanks,
Sasha



[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux PPP]     [Linux FS]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Linmodem]     [Device Mapper]     [Linux Kernel for ARM]

  Powered by Linux