netdev - [PATCH net-next v2] r8153_ecm: avoid to be prior to r8152 driver

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Message-ID: <1394712342-15778-394-Taiwan-albertk@realtek.com>
Date:   Wed, 18 Nov 2020 14:43:58 +0800
From:   Hayes Wang <hayeswang@...ltek.com>
To:     <netdev@...r.kernel.org>
CC:     <nic_swsd@...ltek.com>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <m.szyprowski@...sung.com>,
        Hayes Wang <hayeswang@...ltek.com>
Subject: [PATCH net-next v2] r8153_ecm: avoid to be prior to r8152 driver

Avoid r8153_ecm is compiled as built-in, if r8152 driver is compiled
as modules. Otherwise, the r8153_ecm would be used, even though the
device is supported by r8152 driver.

Fixes: c1aedf015ebd ("net/usb/r8153_ecm: support ECM mode for RTL8153")
Reported-by: Marek Szyprowski <m.szyprowski@...sung.com>
Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
---
v2:
Use a separate Kconfig entry for r8153_ecm with proper dependencies.

 drivers/net/usb/Kconfig  | 9 +++++++++
 drivers/net/usb/Makefile | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index b46993d5f997..1e3719028780 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -628,4 +628,13 @@ config USB_NET_AQC111
 	  This driver should work with at least the following devices:
 	  * Aquantia AQtion USB to 5GbE
 
+config USB_RTL8153_ECM
+	tristate "RTL8153 ECM support"
+	depends on USB_NET_CDCETHER && (USB_RTL8152 || USB_RTL8152=n)
+	default y
+	help
+	  This option supports ECM mode for RTL8153 ethernet adapter, when
+	  CONFIG_USB_RTL8152 is not set, or the RTL8153 device is not
+	  supported by r8152 driver.
+
 endif # USB_NET_DRIVERS
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 99381e6bea78..4964f7b326fb 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -13,7 +13,7 @@ obj-$(CONFIG_USB_LAN78XX)	+= lan78xx.o
 obj-$(CONFIG_USB_NET_AX8817X)	+= asix.o
 asix-y := asix_devices.o asix_common.o ax88172a.o
 obj-$(CONFIG_USB_NET_AX88179_178A)      += ax88179_178a.o
-obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o r8153_ecm.o
+obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o
 obj-$(CONFIG_USB_NET_CDC_EEM)	+= cdc_eem.o
 obj-$(CONFIG_USB_NET_DM9601)	+= dm9601.o
 obj-$(CONFIG_USB_NET_SR9700)	+= sr9700.o
@@ -41,3 +41,4 @@ obj-$(CONFIG_USB_NET_QMI_WWAN)	+= qmi_wwan.o
 obj-$(CONFIG_USB_NET_CDC_MBIM)	+= cdc_mbim.o
 obj-$(CONFIG_USB_NET_CH9200)	+= ch9200.o
 obj-$(CONFIG_USB_NET_AQC111)	+= aqc111.o
+obj-$(CONFIG_USB_RTL8153_ECM)	+= r8153_ecm.o
-- 
2.26.2