Hi all, After merging the kbuild tree, today's linux-next build (powerpc allyesconfig) failed like this: In file included from : include/clocksource/hyperv_timer.h:18:10: fatal error: asm/mshyperv.h: No such file or directory #include ^~~~~~~~~~~~~~~~ Caused by commit 34085aeb5816 ("kbuild: compile-test kernel headers to ensure they are self-contained") interacting with commit dd2cb348613b ("clocksource/drivers: Continue making Hyper-V clocksource ISA agnostic") from the tip tree. I have added the following patch for today. From: Stephen Rothwell Date: Fri, 5 Jul 2019 18:17:44 +1000 Subject: [PATCH] kbuild: only compile test clocksource/hyperv_timer.h on X86 Signed-off-by: Stephen Rothwell --- include/Kbuild | 1 + 1 file changed, 1 insertion(+) diff --git a/include/Kbuild b/include/Kbuild index 4f9524d92a75..a7ab060552c2 100644 --- a/include/Kbuild +++ b/include/Kbuild @@ -29,6 +29,7 @@ header-test- += acpi/platform/acintel.h header-test- += acpi/platform/aclinux.h header-test- += acpi/platform/aclinuxex.h header-test- += acpi/processor.h +header-test-$(CONFIG_X86) += clocksource/hyperv_timer.h header-test- += clocksource/timer-sp804.h header-test- += crypto/cast_common.h header-test- += crypto/internal/cryptouser.h -- 2.20.1 -- Cheers, Stephen Rothwell