Merge tag 'usb-serial-5.8-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git...

Merge tag 'usb-serial-5.8-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for 5.8-rc1

Here are the USB-serial updates for 5.8-rc1, including:

 - a SPDX comment-style clean up
 - a fix usb_wwan modem drivers which could end up resubmitting the
   their read URBs in a tight loop on disconnect
 - a regression fix for a subset of quirky ch341 devices which would
   lock up on certain low line speeds when using the new divisor
   algorithm

All have been in linux-next with no reported issues.

* tag 'usb-serial-5.8-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: ch341: fix lockup of devices with limited prescaler
  USB: serial: ch341: add basis for quirk detection
  USB: serial: usb_wwan: do not resubmit rx urb on fatal errors
  USB: serial: Use the correct style for SPDX License Identifier