On Mon, Nov 04, 2019 at 06:13:03PM +0800, Charles Yeh wrote:
> > I'm not sure I understand your question; what did you mean here?
> >
> > This patch will be included in Linux 5.5, if that's what your asking.
>
> At 1/18/2018, "USB: serial: pl2303: add new PID to support PL2303TB" is approved
> At 1/27/2018, Greg KH help to update the patch on 4.20, 4.19, 4.14,
> 4.9, 4.4, 3.18 stable tree.
> Therefor, this time can update the patch between 5.5 and 4.4 (or 3.18)?
No, I'm afraid not.
Generally only bug fixes are backported to the stable trees, but we
make an exception for simple patches adding new device ids to existing
drivers.
That's what 4dcf9ddc9ad5 ("USB: serial: pl2303: add new PID to support
PL2303TB") did, and that's why it got backported.
This patch, in contrast, adds support for a new protocol used by a class
of devices which were not supported before, and therefore does not meet
the stable-kernel criteria for backports.
Johan
