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authorBjørn Mork <bjorn@mork.no>2017-12-06 20:21:24 +0100
committerDavid S. Miller <davem@davemloft.net>2017-12-07 14:32:30 -0500
commita4abd7a80addb4a9547f7dfc7812566b60ec505c (patch)
tree2e12cda983f7c8c7c0ffe64e5ed65759b7263a54 /include/linux/usb
parent8632385022f2b05a6ca0b9e0f95575865de0e2ce (diff)
usbnet: fix alignment for frames with no ethernet header
The qmi_wwan minidriver support a 'raw-ip' mode where frames are received without any ethernet header. This causes alignment issues because the skbs allocated by usbnet are "IP aligned". Fix by allowing minidrivers to disable the additional alignment offset. This is implemented using a per-device flag, since the same minidriver also supports 'ethernet' mode. Fixes: 32f7adf633b9 ("net: qmi_wwan: support "raw IP" mode") Reported-and-tested-by: Jay Foster <jay@systech.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/usbnet.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index a69877734c4e..e2ec3582e549 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -82,6 +82,7 @@ struct usbnet {
# define EVENT_RX_KILL 10
# define EVENT_LINK_CHANGE 11
# define EVENT_SET_RX_MODE 12
+# define EVENT_NO_IP_ALIGN 13
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)