On Fri, Sep 30, 2022 at 01:54:09PM -0600, Alex Williamson wrote: > On Thu, 29 Sep 2022 12:04:58 -0300 > Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > > This is only 1.8k, putting it in its own module is going to waste more > > space rounding up to a PAGE_SIZE than it is worth. Put it in the main > > vfio.ko module now that kbuild can support multiple .c files. > > > > Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> > > --- > > drivers/vfio/Makefile | 4 +--- > > drivers/vfio/vfio.h | 3 +++ > > drivers/vfio/vfio_main.c | 7 +++++++ > > drivers/vfio/virqfd.c | 16 ++-------------- > > 4 files changed, 13 insertions(+), 17 deletions(-) > > > > diff --git a/drivers/vfio/Makefile b/drivers/vfio/Makefile > > index 50b8e8e3fb10dd..0721ed4831c92f 100644 > > --- a/drivers/vfio/Makefile > > +++ b/drivers/vfio/Makefile > > @@ -1,13 +1,11 @@ > > # SPDX-License-Identifier: GPL-2.0 > > -vfio_virqfd-y := virqfd.o > > - > > obj-$(CONFIG_VFIO) += vfio.o > > > > vfio-y += vfio_main.o \ > > iova_bitmap.o \ > > container.o > > +vfio-$(CONFIG_VFIO_VIRQFD) += virqfd.o > > > > -obj-$(CONFIG_VFIO_VIRQFD) += vfio_virqfd.o > > obj-$(CONFIG_VFIO_IOMMU_TYPE1) += vfio_iommu_type1.o > > obj-$(CONFIG_VFIO_IOMMU_SPAPR_TCE) += vfio_iommu_spapr_tce.o > > obj-$(CONFIG_VFIO_PCI) += pci/ > > diff --git a/drivers/vfio/vfio.h b/drivers/vfio/vfio.h > > index 4a1bac1359a952..038b5f5c8f163d 100644 > > --- a/drivers/vfio/vfio.h > > +++ b/drivers/vfio/vfio.h > > @@ -125,6 +125,9 @@ long vfio_container_ioctl_check_extension(struct vfio_container *container, > > int __init vfio_container_init(void); > > void vfio_container_cleanup(void); > > > > +int __init vfio_virqfd_init(void); > > +void vfio_virqfd_exit(void); > > It's the specific bus drivers (pci & platform) that create the > dependency on virqfd, we need some stubs in the !IS_ENABLED case. Yes... I missed that, OK Thanks Jason