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authorThomas Fitzsimmons <fitzsim@fitzsim.org>2014-07-08 19:44:07 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-28 08:06:00 -0700
commitb4ca5bfee380af0bd89683bd73485357dd22dab3 (patch)
treef414d0d42f9ec33bfddaf3c3a25413851c16169f
parentbb2e73b108e6140acc8572a28683cf6f3e20cf96 (diff)
net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()
[ Upstream commit 0a1985879437d14bda8c90d0dae3455c467d7642 ] This commit fixes the command value generated for CSUM calculation when running in big endian mode. The Ethernet protocol ID for IP was being unconditionally byte-swapped in the layer 3 protocol check (with swab16), which caused the mvneta driver to not function correctly in big endian mode. This patch byte-swaps the ID conditionally with htons. Cc: <stable@vger.kernel.org> # v3.13+ Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/ethernet/marvell/mvneta.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 5bbcace0a5f9..c4c00d9f2c04 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1217,7 +1217,7 @@ static u32 mvneta_txq_desc_csum(int l3_offs, int l3_proto,
command = l3_offs << MVNETA_TX_L3_OFF_SHIFT;
command |= ip_hdr_len << MVNETA_TX_IP_HLEN_SHIFT;
- if (l3_proto == swab16(ETH_P_IP))
+ if (l3_proto == htons(ETH_P_IP))
command |= MVNETA_TXD_IP_CSUM;
else
command |= MVNETA_TX_L3_IP6;