Re: [PATCH 00/26] tty/serial flow control fixes

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On 09/08/2014 07:24 PM, Greg Kroah-Hartman wrote:
> On Tue, Sep 02, 2014 at 05:39:09PM -0400, Peter Hurley wrote:
>> Hi Greg,
>>
>> This patch series reworks the internals of tty and serial flow control to
>> fix multiple races in both START/STOP flow control and RTS/CTS flow control.
>>
>> The main changes in this series are:
>> Patch 1
>>    Backs out the UPF_HARD_FLOW kludge for 8250. This revert should be
>>    for mainline and -next
>>
>> Patches 3-7
>>    Fixes to x_char handling (ie., sending START/STOP) both in the serial
>>    core and to several UART drivers
>>
>> Patches 10-15
>>    Rename and move ASYNC_CTS_FLOW and ASYNC_CHECK_CD statuses into
>>    a private field for the serial core, and add helper functions to test
>>    those statuses for UART drivers.
>>
>>    This is a necessary step toward making tty port->flags SMP-safe, without
>>    introducing a new lock.
> 
> I stopped applying at patch 13, due to the objections to that patch.
> Please redo the rest of the series and resend.

I'm going to wait for the fallout from patch 21 to shake out first.

Regards,
Peter Hurley
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