On Sat, Mar 25, 2017 at 4:00 AM, Daniel Walker [off-list ref] wrote:

I get this build failure,


In file included from arch/powerpc/boot/fdt.c:51:
../arch/powerpc/boot/libfdt_env.h:9: error: redefinition of typedef
'uint32_t'
../arch/powerpc/boot/types.h:20: note: previous declaration of 'uint32_t'
was here
../arch/powerpc/boot/libfdt_env.h:10: error: redefinition of typedef
'uint64_t'
../arch/powerpc/boot/types.h:21: note: previous declaration of 'uint64_t'
was here
make[2]: *** [arch/powerpc/boot/fdt.o] Error 1
make[1]: *** [uImage] Error 2
make[1]: Leaving directory `/nobackup/danielwa/linux/t1040'
make: *** [sub-make] Error 2


and it bisects to ,


commit 656ad58ef19e2a763fa5c938b20ae0f6b8d67242
Author: Oliver O'Halloran [off-list ref]
Date:   Fri Jul 1 00:34:37 2016 +1000

    powerpc/boot: Add OPAL console to epapr wrappers

    This patch adds an OPAL console backend to the powerpc boot wrapper so
    that decompression failures inside the wrapper can be reported to the
    user. This is important since it typically indicates data corruption in
    the firmware and other nasty things.

    Currently this only works when building a little endian kernel. When
    compiling a 64 bit BE kernel the wrapper is always build 32 bit to be
    compatible with some 32 bit firmwares. BE support will be added at a
    later date. Another limitation of this is that only the "raw" type of
    OPAL console is supported, however machines that provide a hvsi console
    also provide a raw console so this is not an issue in practice.

    Actually-written-by: Benjamin Herrenschmidt [off-list ref]
    Signed-off-by: Oliver O'Halloran [off-list ref]
    [mpe: Move #ifdef __powerpc64__ to avoid warnings on 32-bit]
    Signed-off-by: Michael Ellerman [off-list ref]


I can provide a config file if needed. My apologies if this was already
reported.

Thanks for the report, I don't think this is a known bug. mpe's build
testing is pretty thorough so I'm surprised this wasn't caught sooner.

A config file and the version of gcc that you're using would be useful.

Oliver