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authorThomas Fitzsimmons <fitzsim@fitzsim.org>2014-07-08 19:44:07 -0400
committerJiri Slaby <jslaby@suse.cz>2015-04-09 14:13:50 +0200
commit12ea1092de881c1634d0ddc1e6004b1ae848895b (patch)
tree01190e34f9f58c3b7ae488b92f3e1b86f34d2e93
parentfa53db808062ff867f0cae5348e427ad9845f3d9 (diff)
net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()
commit 0a1985879437d14bda8c90d0dae3455c467d7642 upstream. 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: Jiri Slaby <jslaby@suse.cz>
-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 9c66d3168911..834b71d1c668 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1182,7 +1182,7 @@ 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;