Re: exynos drm build failure due to cec_* symbols

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

Thanks,
Inki Dae

> 
> Configs for reproducing are available here:
> 
> v4.12-rc3:
> http://kernel.opensuse.org/cgit/kernel-source/tree/config/armv7hl/default
> http://kernel.opensuse.org/cgit/kernel-source/tree/config/armv7hl/lpae
> 
> linux.git:
> http://kernel.opensuse.org/cgit/kernel-source/tree/config/armv7hl/vanilla?h=vanilla
> 
> linux-next.git:
> http://kernel.opensuse.org/cgit/kernel-source/tree/config/armv7hl/vanilla?h=linux-next
> 
> Thanks,
> Andreas
> 
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