ll-20140607.0 - ftbfs on beaglebone

[Fathi Boudra]

https://ci.linaro.org/view/engineering-builds/job/package-and-publish-linux-linaro/hwpack=beaglebone,label=build/470/consoleText

  CC arch/arm/mm/proc-syms.o
/home/buildslave/workspace/package-and-publish-linux-linaro/kernel_build/test_build/linux/arch/arm/mach-highbank/highbank.c: In function ‘highbank_init’:
/home/buildslave/workspace/package-and-publish-linux-linaro/kernel_build/test_build/linux/arch/arm/mach-highbank/highbank.c:170:2: error: implicit declaration of function ‘pl320_ipc_register_notifier’ [-Werror=implicit-function-declaration]
  pl320_ipc_register_notifier(&hb_keys_nb);
  ^
cc1: some warnings being treated as errors
make[3]: *** [arch/arm/mach-highbank/highbank.o] Error 1
make[2]: *** [arch/arm/mach-highbank] Error 2

[Fathi Boudra (fboudra)]

Jassi, it's related to https://lists.01.org/pipermail/kbuild-all/2014-March/003916.html

[Andrey Konovalov (andrey-konovalov)]

The compilation error was due to mailbox framework patches in the integration-linaro-vexpress topic - they broke multi_v7_defconfig build. beaglebone kernel configuration is based on multi_v7_defconfig, so the beaglebone build was broken.
In particular:
1) "mailbox: rename pl320-ipc specific mailbox.h" patch is the older version (which doesn't update arch/arm/mach-highbank/highbank.c). The newer, corrected version of this patch exists. Anyway, this is a single line change renaming the header file.
2) "mailbox: pl320: Introduce common API driver" patch removes pl320_ipc_register_notifier() function which is called from arch/arm/mach-highbank/highbank.c without changing the highbank.c.

The current solution by ARM LT is to drop the mailbox framework patches from their integration-linaro-vexpress topic branch (thus dropping cpu_freq support for Juno). This has been done, and the updated integration-linaro-vexpress topic has been merged into linux-linaro, the ll-20140612.0 tag.

[Andrey Konovalov (andrey-konovalov)]

beaglebone kernels build OK now:
https://ci.linaro.org/job/linux-linaro-tracking-ll/429/