Le 26/02/2019 à 23:24, Paul Mackerras a écrit :

On Tue, Feb 26, 2019 at 11:59:08AM +0200, Mike Rapoport wrote:

quoted

On Tue, Feb 26, 2019 at 10:39:54AM +0100, Christophe Leroy wrote:

quoted

Le 26/02/2019 à 09:12, Mike Rapoport a écrit :

quoted

Hi,

I've encountered the following error when building skyroot_defconfig with
current mmotm tree:

make CONFIG_OF_ALL_DTBS=y CONFIG_DTC=y CROSS_COMPILE=/opt/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ARCH=powerpc vmlinux
   ...
   CC      arch/powerpc/kernel/dbell.o
In file included from arch/powerpc/kernel/dbell.c:20:
arch/powerpc/include/asm/kvm_ppc.h: In function 'xics_on_xive':
arch/powerpc/include/asm/kvm_ppc.h:625:9: error: implicit declaration of function 'xive_enabled'; did you mean 'eeh_enabled'? [-Werror=implicit-function-declaration]
   return xive_enabled() && cpu_has_feature(CPU_FTR_HVMODE);
          ^~~~~~~~~~~~
          eeh_enabled

I can neither find the above in arch/powerpc/include/asm/kvm_ppc.h in the
powerpc tree, nor a patch removing it.

Where does that comes from ?

It's from current mmotm, probably some merge conflict...

It's not a merge conflict; see http://patchwork.ozlabs.org/patch/1048584/
for the fix.

Why not include asm/xive.h all the time, as it defines xive_enabled() 
for when CONFIG_PPC_XIVE is set and for when it is not set ?

Christophe