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Date:   Thu, 23 Jul 2020 07:22:10 -0700
From:   trix@...hat.com
To:     davem@...emloft.net, kuba@...nel.org, masahiroy@...nel.org
Cc:     linux-usb@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Tom Rix <trix@...hat.com>
Subject: [PATCH] net: cdc_ncm: USB_NET_CDC_NCM selects USB_NET_CDCETHER

From: Tom Rix <trix@...hat.com>

A link error

ld: drivers/net/usb/cdc_ncm.o:
  undefined reference to `usbnet_cdc_update_filter'

usbnet_cdc_update_filter is defined in cdc_ether.c
Building of cdc_ether.o is controlled by USB_NET_CDCETHER

Building of cdc_ncm.o is controlled by USB_NET_CDC_NCM

So add a select USB_NET_CDCETHER to USB_NET_CDC_NCM

Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/net/usb/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index a7fbc3ccd29e..c7bcfca7d70b 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -252,6 +252,7 @@ config USB_NET_CDC_EEM
 config USB_NET_CDC_NCM
 	tristate "CDC NCM support"
 	depends on USB_USBNET
+	select USB_NET_CDCETHER
 	default y
 	help
 	  This driver provides support for CDC NCM (Network Control Model
-- 
2.18.1

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