2827d98bc5
As warned by Randy: on x86_64: CONFIG_USB_ROLE_SWITCH=m and HISI_HIKEY_USB=y. ld: drivers/misc/hisi_hikey_usb.o: in function `hisi_hikey_usb_remove': hisi_hikey_usb.c:(.text+0x61): undefined reference to `usb_role_switch_unregister' ld: hisi_hikey_usb.c:(.text+0xa4): undefined reference to `usb_role_switch_put' ld: drivers/misc/hisi_hikey_usb.o: in function `hub_usb_role_switch_set': hisi_hikey_usb.c:(.text+0xd3): undefined reference to `usb_role_switch_get_drvdata' ld: drivers/misc/hisi_hikey_usb.o: in function `relay_set_role_switch': hisi_hikey_usb.c:(.text+0x54d): undefined reference to `usb_role_switch_set_role' ld: drivers/misc/hisi_hikey_usb.o: in function `hisi_hikey_usb_probe': hisi_hikey_usb.c:(.text+0x8a5): undefined reference to `usb_role_switch_get' ld: hisi_hikey_usb.c:(.text+0xa08): undefined reference to `usb_role_switch_register' ld: hisi_hikey_usb.c:(.text+0xa6e): undefined reference to `usb_role_switch_put' Make it dependent on CONFIG_USB_ROLE_SWITCH. Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/0e49432d0db9ee8429a9923a1d995935b6b83552.1602047370.git.mchehab+huawei@kernel.org 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.