Thread (18 messages) flat view 18 messages, 5 authors, 2021-10-06

Re: [PATCH net-next v2 1/9] of: net: move of_net under net/

From: Jakub Kicinski <kuba@kernel.org>
Date: 2021-10-06 17:12:06
Also in: linux-devicetree
Subsystem: ethernet phy library, litex platform, networking drivers, networking [general], ocelot ethernet switch driver, open firmware and flattened device tree, the rest · Maintainers: Andrew Lunn, Heiner Kallweit, Karol Gugala, Mateusz Holenko, Joel Stanley, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Rob Herring, Saravana Kannan, Linus Torvalds

On Wed, 6 Oct 2021 11:58:07 -0500 Rob Herring wrote:
On Wed, Oct 6, 2021 at 11:34 AM Andrew Lunn [off-list ref] wrote:
quoted
On Wed, Oct 06, 2021 at 11:18:19AM -0500, Rob Herring wrote:  
quoted
The OF_NET kconfig should move or disappear too. I imagine you can do just:  
It is used in a few places:  
Okay, then just move it for now.

I suspect though that most of these can either be dropped or replaced
with just 'OF' dependency.
I have something that builds with allmodconfig :) see below.
quoted
net/ethernet/litex/Kconfig:     depends on OF_NET
net/ethernet/amd/Kconfig:       depends on ((OF_NET && OF_ADDRESS) || ACPI || PCI) && HAS_IOMEM  
If the driver depends on OF or ACPI, then the dependency should just
be removed because one of those is almost always enabled.
I assumed any OF_* implies OF so just dropping OF_NET.
quoted
net/ethernet/mscc/Kconfig:      depends on OF_NET
net/ethernet/ezchip/Kconfig:    depends on OF_IRQ && OF_NET
net/ethernet/arc/Kconfig:       depends on OF_IRQ && OF_NET
net/ethernet/arc/Kconfig:       depends on OF_IRQ && OF_NET && REGULATOR  
I don't see any OF_IRQ dependency (which would be odd). The OF_NET
dependency is just of_get_phy_mode() from a quick glance and we have a
stub for it.
Hm. Indeed on the OF_IRQ.

net/ethernet/arc/ has irq_of_parse_and_map()
but I don't see the need in ezchip, but that seems like a separate matter...

--->8-----
diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index 4786f0504691..899c8a2a34b6 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -168,7 +168,7 @@ config SUNLANCE
 
 config AMD_XGBE
 	tristate "AMD 10GbE Ethernet driver"
-	depends on ((OF_NET && OF_ADDRESS) || ACPI || PCI) && HAS_IOMEM
+	depends on (OF_ADDRESS || ACPI || PCI) && HAS_IOMEM
 	depends on X86 || ARM64 || COMPILE_TEST
 	depends on PTP_1588_CLOCK_OPTIONAL
 	select BITREVERSE
diff --git a/drivers/net/ethernet/arc/Kconfig b/drivers/net/ethernet/arc/Kconfig
index 37a41773dd43..840a9ce7ba1c 100644
--- a/drivers/net/ethernet/arc/Kconfig
+++ b/drivers/net/ethernet/arc/Kconfig
@@ -25,7 +25,7 @@ config ARC_EMAC_CORE
 config ARC_EMAC
 	tristate "ARC EMAC support"
 	select ARC_EMAC_CORE
-	depends on OF_IRQ && OF_NET
+	depends on OF_IRQ
 	depends on ARC || COMPILE_TEST
 	help
 	  On some legacy ARC (Synopsys) FPGA boards such as ARCAngel4/ML50x
@@ -35,7 +35,7 @@ config ARC_EMAC
 config EMAC_ROCKCHIP
 	tristate "Rockchip EMAC support"
 	select ARC_EMAC_CORE
-	depends on OF_IRQ && OF_NET && REGULATOR
+	depends on OF_IRQ && REGULATOR
 	depends on ARCH_ROCKCHIP || COMPILE_TEST
 	help
 	  Support for Rockchip RK3036/RK3066/RK3188 EMAC ethernet controllers.
diff --git a/drivers/net/ethernet/ezchip/Kconfig b/drivers/net/ethernet/ezchip/Kconfig
index 38aa824efb25..9241b9b1c7a3 100644
--- a/drivers/net/ethernet/ezchip/Kconfig
+++ b/drivers/net/ethernet/ezchip/Kconfig
@@ -18,7 +18,7 @@ if NET_VENDOR_EZCHIP
 
 config EZCHIP_NPS_MANAGEMENT_ENET
 	tristate "EZchip NPS management enet support"
-	depends on OF_IRQ && OF_NET
+	depends on OF_IRQ
 	depends on HAS_IOMEM
 	help
 	  Simple LAN device for debug or management purposes.
diff --git a/drivers/net/ethernet/litex/Kconfig b/drivers/net/ethernet/litex/Kconfig
index 63bf01d28f0c..f99adbf26ab4 100644
--- a/drivers/net/ethernet/litex/Kconfig
+++ b/drivers/net/ethernet/litex/Kconfig
@@ -17,7 +17,7 @@ if NET_VENDOR_LITEX
 
 config LITEX_LITEETH
 	tristate "LiteX Ethernet support"
-	depends on OF_NET
+	depends on OF
 	help
 	  If you wish to compile a kernel for hardware with a LiteX LiteEth
 	  device then you should answer Y to this.
diff --git a/drivers/net/ethernet/mscc/Kconfig b/drivers/net/ethernet/mscc/Kconfig
index b6a73d151dec..8dd8c7f425d2 100644
--- a/drivers/net/ethernet/mscc/Kconfig
+++ b/drivers/net/ethernet/mscc/Kconfig
@@ -28,7 +28,7 @@ config MSCC_OCELOT_SWITCH
 	depends on BRIDGE || BRIDGE=n
 	depends on NET_SWITCHDEV
 	depends on HAS_IOMEM
-	depends on OF_NET
+	depends on OF
 	select MSCC_OCELOT_SWITCH_LIB
 	select GENERIC_PHY
 	help
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 3dfeae8912df..80b5fd44ab1c 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -70,10 +70,6 @@ config OF_IRQ
 	def_bool y
 	depends on !SPARC && IRQ_DOMAIN
 
-config OF_NET
-	depends on NETDEVICES
-	def_bool y
-
 config OF_RESERVED_MEM
 	def_bool OF_EARLY_FLATTREE
 
diff --git a/include/linux/of_net.h b/include/linux/of_net.h
index 314b9accd98c..0797e2edb8c2 100644
--- a/include/linux/of_net.h
+++ b/include/linux/of_net.h
@@ -8,7 +8,7 @@
 
 #include <linux/phy.h>
 
-#ifdef CONFIG_OF_NET
+#ifdef CONFIG_OF
 #include <linux/of.h>
 
 struct net_device;
diff --git a/net/core/Makefile b/net/core/Makefile
index 37b1befc39aa..4268846f2f47 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -36,4 +36,4 @@ obj-$(CONFIG_FAILOVER) += failover.o
 obj-$(CONFIG_NET_SOCK_MSG) += skmsg.o
 obj-$(CONFIG_BPF_SYSCALL) += sock_map.o
 obj-$(CONFIG_BPF_SYSCALL) += bpf_sk_storage.o
-obj-$(CONFIG_OF_NET)	+= of_net.o
+obj-$(CONFIG_OF)	+= of_net.o
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index f6197774048b..ae001c2ca2af 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1869,7 +1869,7 @@ static struct class net_class __ro_after_init = {
 	.get_ownership = net_get_ownership,
 };
 
-#ifdef CONFIG_OF_NET
+#ifdef CONFIG_OF
 static int of_dev_node_match(struct device *dev, const void *data)
 {
 	for (; dev; dev = dev->parent) {
-- 
2.31.1

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