[1/4] USB: serial: ftdi_sio: fix IXON/IXOFF mixup

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Fri, May 18, 2018 at 04:33:50PM +0200, Johan Hovold wrote:
> On Fri, May 18, 2018 at 03:53:54PM +0200, Greg Kroah-Hartman wrote:
> > On Fri, May 18, 2018 at 03:25:47PM +0200, Johan Hovold wrote:
> > > Since forever this driver has had IXON and IXOFF mixed up, and has used
> > > the latter rather than the former to enable hardware-assisted software
> > > flow control on output.
> 
> > Ugh, that's a huge sign that no one actually uses IXON/IXOFF anymore :(
> 
> Could be that some applications set both IXON and IXOFF "just to be
> safe"; that appears to be the case with minicom at least.
> 
> > Anyway, thanks for fixing this up, should also probably be backported to
> > the stable kernels.
> 
> I considered that, but since its a change in behaviour I figured it was
> best that anyone affected hits this with a major (minor?) kernel version
> update (rather than a stable update). But I'll add a stable tag if you
> think it's warranted?

Fair enough.  If anyone notices we can easily backport it later on if
needed.

thanks,

greg k-h
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