netdev - [PATCH 01/16] virtio_net: add a separate directory for virtio-net

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Date:   Tue, 28 Mar 2023 17:28:32 +0800
From:   Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        virtualization@...ts.linux-foundation.org, bpf@...r.kernel.org
Subject: [PATCH 01/16] virtio_net: add a separate directory for virtio-net

Create a separate directory for virtio-net.

Considering the complexity of virtio-net.c and the new features we want
to add, it is time to split virtio-net.c into multiple independent
module files.

This is beneficial to the maintenance and adding new functions.

And AF_XDP support will be added later, then a separate xsk.c file will
be added.

Signed-off-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
---
 MAINTAINERS                                    |  2 +-
 drivers/net/Kconfig                            |  8 +-------
 drivers/net/Makefile                           |  2 +-
 drivers/net/virtio/Kconfig                     | 11 +++++++++++
 drivers/net/virtio/Makefile                    |  8 ++++++++
 drivers/net/{virtio_net.c => virtio/virtnet.c} |  0
 6 files changed, 22 insertions(+), 9 deletions(-)
 create mode 100644 drivers/net/virtio/Kconfig
 create mode 100644 drivers/net/virtio/Makefile
 rename drivers/net/{virtio_net.c => virtio/virtnet.c} (100%)

diff --git a/MAINTAINERS b/MAINTAINERS
index fbbda4671e73..6bb3c2199003 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22083,7 +22083,7 @@ F:	Documentation/devicetree/bindings/virtio/
 F:	Documentation/driver-api/virtio/
 F:	drivers/block/virtio_blk.c
 F:	drivers/crypto/virtio/
-F:	drivers/net/virtio_net.c
+F:	drivers/net/virtio/
 F:	drivers/vdpa/
 F:	drivers/virtio/
 F:	include/linux/vdpa.h
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index c34bd432da27..23a169d248b5 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -407,13 +407,7 @@ config VETH
 	  When one end receives the packet it appears on its pair and vice
 	  versa.
 
-config VIRTIO_NET
-	tristate "Virtio network driver"
-	depends on VIRTIO
-	select NET_FAILOVER
-	help
-	  This is the virtual network driver for virtio.  It can be used with
-	  QEMU based VMMs (like KVM or Xen).  Say Y or M.
+source "drivers/net/virtio/Kconfig"
 
 config NLMON
 	tristate "Virtual netlink monitoring device"
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index e26f98f897c5..47537dd0f120 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -31,7 +31,7 @@ obj-$(CONFIG_NET_TEAM) += team/
 obj-$(CONFIG_TUN) += tun.o
 obj-$(CONFIG_TAP) += tap.o
 obj-$(CONFIG_VETH) += veth.o
-obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
+obj-$(CONFIG_VIRTIO_NET) += virtio/
 obj-$(CONFIG_VXLAN) += vxlan/
 obj-$(CONFIG_GENEVE) += geneve.o
 obj-$(CONFIG_BAREUDP) += bareudp.o
diff --git a/drivers/net/virtio/Kconfig b/drivers/net/virtio/Kconfig
new file mode 100644
index 000000000000..9bc2a2fc6c3e
--- /dev/null
+++ b/drivers/net/virtio/Kconfig
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# virtio-net device configuration
+#
+config VIRTIO_NET
+	tristate "Virtio network driver"
+	depends on VIRTIO
+	select NET_FAILOVER
+	help
+	  This is the virtual network driver for virtio.  It can be used with
+	  QEMU based VMMs (like KVM or Xen).  Say Y or M.
diff --git a/drivers/net/virtio/Makefile b/drivers/net/virtio/Makefile
new file mode 100644
index 000000000000..ccd45c0e5064
--- /dev/null
+++ b/drivers/net/virtio/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the virtio network device drivers.
+#
+
+obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
+
+virtio_net-y := virtnet.o
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio/virtnet.c
similarity index 100%
rename from drivers/net/virtio_net.c
rename to drivers/net/virtio/virtnet.c
-- 
2.32.0.3.g01195cf9f