linux-kernel - [PATCH] mcs7830: fix reception of 1514 byte frames

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Message-Id: <200608272241.54161.arnd@arndb.de>
Date:	Sun, 27 Aug 2006 22:41:53 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	David Hollis <dhollis@...ehollis.com>
Cc:	dbrownell@...rs.sourceforge.net, linux-kernel@...r.kernel.org,
	linux-usb-devel@...ts.sourceforge.net, support@...chip.com,
	Michael Helmling <supermihi@....de>
Subject: [PATCH] mcs7830: fix reception of 1514 byte frames

The mcs7830 chip always appends a byte with status information
to an rx frame, so the URB needs to reserve an extra byte.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
Index: linux-cg/drivers/usb/net/mcs7830.c
===================================================================
--- linux-cg.orig/drivers/usb/net/mcs7830.c	2006-08-25 21:23:35.000000000 +0200
+++ linux-cg/drivers/usb/net/mcs7830.c	2006-08-25 21:26:02.000000000 +0200
@@ -405,6 +405,9 @@
 	net->set_multicast_list = mcs7830_set_multicast;
 	mcs7830_set_multicast(net);
 
+	/* reserve space for the status byte on rx */
+	dev->rx_urb_size = ETH_FRAME_LEN + 1;
+
 	dev->mii.mdio_read = mcs7830_mdio_read;
 	dev->mii.mdio_write = mcs7830_mdio_write;
 	dev->mii.dev = net;

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