diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/880-v5.19-cdc_ether-export-usbnet_cdc_zte_rx_fixup.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/880-v5.19-cdc_ether-export-usbnet_cdc_zte_rx_fixup.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/880-v5.19-cdc_ether-export-usbnet_cdc_zte_rx_fixup.patch b/pkgs/patches-linux-5.15/880-v5.19-cdc_ether-export-usbnet_cdc_zte_rx_fixup.patch new file mode 100644 index 0000000..39fdb32 --- /dev/null +++ b/pkgs/patches-linux-5.15/880-v5.19-cdc_ether-export-usbnet_cdc_zte_rx_fixup.patch @@ -0,0 +1,58 @@ +From a79a5613e1907e1bf09bb6ba6fd5ff43b66c1afe Mon Sep 17 00:00:00 2001 +From: Lech Perczak <lech.perczak@gmail.com> +Date: Fri, 1 Apr 2022 22:03:55 +0200 +Subject: [PATCH 1/3] cdc_ether: export usbnet_cdc_zte_rx_fixup +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Commit bfe9b9d2df66 ("cdc_ether: Improve ZTE MF823/831/910 handling") +introduces a workaround for certain ZTE modems reporting invalid MAC +addresses over CDC-ECM. +The same issue was present on their RNDIS interface,which was fixed in +commit a5a18bdf7453 ("rndis_host: Set valid random MAC on buggy devices"). + +However, internal modem of ZTE MF286R router, on its RNDIS interface, also +exhibits a second issue fixed already in CDC-ECM, of the device not +respecting configured random MAC address. In order to share the fixup for +this with rndis_host driver, export the workaround function, which will +be re-used in the following commit in rndis_host. + +Cc: Kristian Evensen <kristian.evensen@gmail.com> +Cc: Bjørn Mork <bjorn@mork.no> +Cc: Oliver Neukum <oliver@neukum.org> +Signed-off-by: Lech Perczak <lech.perczak@gmail.com> +--- + drivers/net/usb/cdc_ether.c | 3 ++- + include/linux/usb/usbnet.h | 1 + + 2 files changed, 3 insertions(+), 1 deletion(-) + +--- a/drivers/net/usb/cdc_ether.c ++++ b/drivers/net/usb/cdc_ether.c +@@ -479,7 +479,7 @@ static int usbnet_cdc_zte_bind(struct us + * device MAC address has been updated). Always set MAC address to that of the + * device. + */ +-static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) ++int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb) + { + if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02)) + return 1; +@@ -489,6 +489,7 @@ static int usbnet_cdc_zte_rx_fixup(struc + + return 1; + } ++EXPORT_SYMBOL_GPL(usbnet_cdc_zte_rx_fixup); + + /* Ensure correct link state + * +--- a/include/linux/usb/usbnet.h ++++ b/include/linux/usb/usbnet.h +@@ -214,6 +214,7 @@ extern int usbnet_ether_cdc_bind(struct + extern int usbnet_cdc_bind(struct usbnet *, struct usb_interface *); + extern void usbnet_cdc_unbind(struct usbnet *, struct usb_interface *); + extern void usbnet_cdc_status(struct usbnet *, struct urb *); ++extern int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb); + + /* CDC and RNDIS support the same host-chosen packet filters for IN transfers */ + #define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \ |