On 05/06/17 10:59, Russell King - ARM Linux wrote:

On Mon, Jun 05, 2017 at 10:33:50AM +0900, Inki Dae wrote:

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2017년 06월 02일 22:58에 Andreas Färber 이(가) 쓴 글:

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Hello,

We're observing the following build failure with v4.12-rc3, latest linux.git and linux-next.git:

[ 9825s] LD vmlinux.o [ 9904s] MODPOST vmlinux.o [ 9915s] drivers/built-in.o: In function `hdmi_get_modes': [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:866: undefined reference to `cec_notifier_set_phys_addr_from_edid' [ 9915s] drivers/built-in.o: In function `hdmi_remove': [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:1923: undefined reference to `cec_notifier_set_phys_addr' [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:1927: undefined reference to `cec_notifier_put' [ 9915s] drivers/built-in.o: In function `hdmi_probe': [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:1889: undefined reference to `cec_notifier_get' [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:1904: undefined reference to `cec_notifier_put' [ 9915s] drivers/built-in.o: In function `hdmi_disable': [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:1509: undefined reference to `cec_notifier_set_phys_addr' [ 9915s] drivers/built-in.o: In function `hdmi_detect': [ 9915s] /home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/linux-obj/../drivers/gpu/drm/exynos/exynos_hdmi.c:827: undefined reference to `cec_notifier_set_phys_addr' [ 9931s] make[2]: *** [/home/abuild/rpmbuild/BUILD/kernel-vanilla-4.12.rc3.51.ga374846/linux-4.12-rc3-51-ga374846/Makefile:997: vmlinux] Error 1 [ 9931s] make[1]: *** [Makefile:152: sub-make] Error 2 [ 9931s] make: *** [Makefile:24: __sub-make] Error 2

My guess is the symbols used by the exynos drm module are not exported:

cec_notifier_set_phys_addr_from_edid cec_notifier_set_phys_addr cec_notifier_put cec_notifier_get

Can you please look into fixing this?

Thanks for reporting.

Will check and fix it.

Please look at Hans' update to the way CEC's dependencies are handled. https://git.linuxtv.org/hverkuil/media_tree.git/log/?h=drm-cec

These are apparently scheduled for -rc, but Mauro is busy.

They got merged in the media fixes tree, so with luck will appear in 4.12 soon.

Regards,

Hans