From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 15 May 2014 21:33:52 +0000 (-0700)
Subject: net: systemport: fix dma_unmap_single() len
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~208^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1ff53e9fd26a11ede97fcad5ff2e9be00b61bf8;p=pandora-kernel.git

net: systemport: fix dma_unmap_single() len

dma_unmap_single() was called with dma_unmap_len(cb, dma_len),
unfortunately we failed to assign this length field in
bcm_sysport_rx_refill() or bcm_sysport_alloc_rx_bufs() using
dma_unmap_len_set().

This causes packet contents corruption because are we not invoking the
cache invalidation routines with the proper length.  Fix this by using
the full RX buffer size (RX_BUF_LENGTH) because the mappings for the RX
bufers are created with that size.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed