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commit945c37ed56upstream. when CONFIG_USB_ROLE_SWITCH is not defined, add usb_role_switch_find_by_fwnode() definition which return NULL. Fixes:c6919d5e0c("usb: roles: Add usb_role_switch_find_by_fwnode()") Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com> Link: https://lore.kernel.org/r/1641818608-25039-1-git-send-email-quic_linyyuan@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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