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Date: Wed, 11 Apr 2012 16:13:10 -0700 From: Greg KH <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Oliver Neukum <oliver@...kum.name>, Rabin Vincent <rabin@....in>, "David S. Miller" <davem@...emloft.net> Subject: [ 03/42] net: usb: cdc_eem: fix mtu 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rabin Vincent <rabin@....in> [ Upstream commit 78fb72f7936c01d5b426c03a691eca082b03f2b9 ] Make CDC EEM recalculate the hard_mtu after adjusting the hard_header_len. Without this, usbnet adjusts the MTU down to 1494 bytes, and the host is unable to receive standard 1500-byte frames from the device. Tested with the Linux USB Ethernet gadget. Cc: Oliver Neukum <oliver@...kum.name> Signed-off-by: Rabin Vincent <rabin@....in> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/usb/cdc_eem.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/net/usb/cdc_eem.c +++ b/drivers/net/usb/cdc_eem.c @@ -93,6 +93,7 @@ static int eem_bind(struct usbnet *dev, /* no jumbogram (16K) support for now */ dev->net->hard_header_len += EEM_HEAD + ETH_FCS_LEN; + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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