On Mon, Oct 18, 2021 at 03:19:08PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > On arm64 randconfig builds, hyperv sometimes fails with this > error: > > In file included from drivers/hv/hv_trace.c:3: > In file included from drivers/hv/hyperv_vmbus.h:16: > In file included from arch/arm64/include/asm/sync_bitops.h:5: > arch/arm64/include/asm/bitops.h:11:2: error: only <linux/bitops.h> can be included directly > In file included from include/asm-generic/bitops/hweight.h:5: > include/asm-generic/bitops/arch_hweight.h:9:9: error: implicit declaration of function '__sw_hweight32' [-Werror,-Wimplicit-function-declaration] > include/asm-generic/bitops/atomic.h:17:7: error: implicit declaration of function 'BIT_WORD' [-Werror,-Wimplicit-function-declaration] > > Include the correct header first. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Applied to hyperv-fixes. Thanks. > --- > Not sure what started this, I first saw it on linux-next-20211015 > --- > drivers/hv/hyperv_vmbus.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h > index 42f3d9d123a1..d030577ad6a2 100644 > --- a/drivers/hv/hyperv_vmbus.h > +++ b/drivers/hv/hyperv_vmbus.h > @@ -13,6 +13,7 @@ > #define _HYPERV_VMBUS_H > > #include <linux/list.h> > +#include <linux/bitops.h> > #include <asm/sync_bitops.h> > #include <asm/hyperv-tlfs.h> > #include <linux/atomic.h> > -- > 2.29.2 >
