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path: root/drivers/net/usb/ch9200.c
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2019-02-20ch9200: use skb_cow_head() to deal with cloned skbsEric Dumazet
commit 6bc6895bdd6744e0136eaa4a11fbdb20a7db4e40 upstream. We need to ensure there is enough headroom to push extra header, but we also need to check if we are allowed to change headers. skb_cow_head() is the proper helper to deal with this. Fixes: 4a476bd6d1d9 ("usbnet: New driver for QinHeng CH9200 devices") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: James Hughes <james.hughes@raspberrypi.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-22ch9200: Convert to use module_usb_driverTobias Klauser
Converts the ch9200 driver to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21usbnet: New driver for QinHeng CH9200 devicesMatthew Garrett
There's a bunch of cheap USB 10/100 devices based on QinHeng chipsets. The vendor driver supports the CH9100 and CH9200 devices, but the majority of the code is of the if (ch9100) {} else {} form, with the most significant difference being that CH9200 provides a real MII interface but CH9100 fakes one with a bunch of global variables and magic commands. I don't have a CH9100, so it's probably better if someone who does provides an independent driver for it. In any case, this is a lightly cleaned up version of the vendor driver with all the CH9100 code dropped. Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: David S. Miller <davem@davemloft.net>