make pdfdoc errors with 4.10-rc7

[Jim Davis]

On a Fedora 25 system, make pdfdocs is failing with

[jim@krebstar linux-rc]$ grep -v -i 'warning:' /tmp/make-pdfdocs.err
/data/linux-rc/Documentation/doc-guide/sphinx.rst:110: ERROR: Unknown
target name: "sphinx c domain".
./include/net/cfg80211.h:3154: ERROR: Unexpected indentation.
./include/net/mac80211.h:3214: ERROR: Unexpected indentation.
./include/net/mac80211.h:3219: ERROR: Unexpected indentation.
./include/net/mac80211.h:1773: ERROR: Unexpected indentation.
./kernel/time/timer.c:1240: ERROR: Unexpected indentation.
./kernel/time/timer.c:1242: ERROR: Unexpected indentation.
./include/linux/wait.h:124: ERROR: Unexpected indentation.
./include/linux/spi/spi.h:369: ERROR: Unexpected indentation.
./drivers/usb/core/message.c:481: ERROR: Unexpected indentation.
/data/linux-rc/Documentation/driver-api/usb.rst:623: ERROR: Unknown
target name: "usb_type".
/data/linux-rc/Documentation/driver-api/usb.rst:623: ERROR: Unknown
target name: "usb_dir".
/data/linux-rc/Documentation/driver-api/usb.rst:623: ERROR: Unknown
target name: "usb_recip".
/data/linux-rc/Documentation/driver-api/usb.rst:689: ERROR: Unknown
target name: "usbdevfs_urb_type".
./sound/soc/soc-core.c:2508: ERROR: Unknown target name: "snd_soc_daifmt".
./sound/core/jack.c:312: ERROR: Unknown target name: "snd_jack_btn".
make[2]: *** [linux-user.pdf] Error 1
make[1]: *** [pdfdocs] Error 2
make: *** [pdfdocs] Error 2


-- 
Jim