Bug#783275: linux: cross-building for armhf fails in install-udeb_armhf target due to missing module imx-hdmi

[Wookey <wookey@debian.org>]

Source: linux
Version: 4.0-1~exp1
Severity: normal

I added a very minor dtb patch to the 4.0-1~exp1 package then tried to
build it with:
dpkg-buildpackage -aarmhf -B -d
(the -d is needed because dpkg-checkbuilddeps gets confused about arch
of python and binutils currently, but everything is installed)

the kernel all builds but when packaging up the files I get;

kernel-wedge install-files 4.0.0-trunk
        install -D -m 644 debian/linux-image-4.0.0-trunk-armmp/boot/vmlinuz-4.0.0-trunk-armmp debian/kernel-image-4.0.0-trunk-armmp-di/boot/vmlinuz
        install -d debian/kernel-image-4.0.0-trunk-armmp-di/lib/modules/4.0.0-trunk-armmp
        install -m 644 debian/linux-image-4.0.0-trunk-armmp/lib/modules/4.0.0-trunk-armmp/modules.builtin debian/linux-image-4.0.0-trunk-armmp/lib/modules/4.0.0-trunk-armmp/modules.order debian/kernel-image-4.0.0-trunk-armmp-di/lib/modules/4.0.0-trunk-armmp/
        install -D -m 644 debian/linux-image-4.0.0-trunk-armmp/boot/System.map-4.0.0-trunk-armmp debian/kernel-image-4.0.0-trunk-armmp-di/boot/System.map
        install -d debian/kernel-image-4.0.0-trunk-armmp-di/usr/lib
        cp -a debian/linux-image-4.0.0-trunk-armmp/usr/lib/linux-image-4.0.0-trunk-armmp debian/kernel-image-4.0.0-trunk-armmp-di/usr/lib/linux-image-4.0.0-trunk-armmp
        kernel-wedge copy-modules 4.0.0-trunk armmp 4.0.0-trunk-armmp
missing module imx-hdmi
command exited with status 1
debian/rules.real:426: recipe for target 'install-udeb_armhf' failed
make[2]: *** [install-udeb_armhf] Error 2
make[2]: Leaving directory '/home/wookey/linaro/installer/D01/linux-4.0'
debian/rules.gen:63: recipe for target 'binary-arch_armhf' failed
make[1]: *** [binary-arch_armhf] Error 2
make[1]: Leaving directory '/home/wookey/linaro/installer/D01/linux-4.0'
debian/rules:42: recipe for target 'binary-arch' failed
make: *** [binary-arch] Error 2
dpkg-buildpackage: error: debian/rules binary-arch gave error exit status 2

I'm not sure whether that should be built, or should not be listed to
be packaged. Investigating further, but thought this worth reporting.

I think it's unlikely this is caused by the patch I applied
to arch/arm/boot/dts/hip04.dtsi (defining ethernet resources) and
arch/arm/configs/hisi_defconfig:
+CONFIG_HIP04_ETH=y 

but will check

-- System Information:
Debian Release: 7.8
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash