On 2/22/21 10:19 PM, Jason Wang wrote:
> We used to prompt CONFIG_VIRTIO_PCI_MODERN to user which may bring a
> lot of confusion. E.g it may break various default configs which want
> virtio devices.
>
> So this patch fixes this by hiding the prompot and documenting the
> dependency. While at it, rename the module to VIRTIO_PCI_LIB.
>
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Anders Roxell <anders.roxell@xxxxxxxxxx>
> Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
> Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
> Fixes: 86b87c9d858b6 ("virtio-pci: introduce modern device module")
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> drivers/virtio/Kconfig | 11 ++++++-----
> drivers/virtio/Makefile | 2 +-
> 2 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
> index 6b9b81f4b8c2..ce1b3f6ec325 100644
> --- a/drivers/virtio/Kconfig
> +++ b/drivers/virtio/Kconfig
> @@ -12,13 +12,13 @@ config ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS
> This option is selected if the architecture may need to enforce
> VIRTIO_F_ACCESS_PLATFORM
>
> -config VIRTIO_PCI_MODERN
> - tristate "Modern Virtio PCI Device"
> - depends on PCI
> +config VIRTIO_PCI_LIB
> + tristate
> help
> Modern PCI device implementation. This module implements the
> basic probe and control for devices which are based on modern
> - PCI device with possible vendor specific extensions.
> + PCI device with possible vendor specific extensions. Any
> + module that selects this module must depend on PCI.
Nit: "depends on PCI" might have been useful here, since the config
system would then complain about any violations.
Thanks,
Guenter
>
> menuconfig VIRTIO_MENU
> bool "Virtio drivers"
> @@ -28,7 +28,8 @@ if VIRTIO_MENU
>
> config VIRTIO_PCI
> tristate "PCI driver for virtio devices"
> - depends on VIRTIO_PCI_MODERN
> + depends on PCI
> + select VIRTIO_PCI_LIB
> select VIRTIO
> help
> This driver provides support for virtio based paravirtual device
> diff --git a/drivers/virtio/Makefile b/drivers/virtio/Makefile
> index f097578aaa8f..699bbea0465f 100644
> --- a/drivers/virtio/Makefile
> +++ b/drivers/virtio/Makefile
> @@ -1,6 +1,6 @@
> # SPDX-License-Identifier: GPL-2.0
> obj-$(CONFIG_VIRTIO) += virtio.o virtio_ring.o
> -obj-$(CONFIG_VIRTIO_PCI_MODERN) += virtio_pci_modern_dev.o
> +obj-$(CONFIG_VIRTIO_PCI_LIB) += virtio_pci_modern_dev.o
> obj-$(CONFIG_VIRTIO_MMIO) += virtio_mmio.o
> obj-$(CONFIG_VIRTIO_PCI) += virtio_pci.o
> virtio_pci-y := virtio_pci_modern.o virtio_pci_common.o
>
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