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net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()
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>
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@ -1207,7 +1207,7 @@ static u32 mvneta_txq_desc_csum(int l3_offs, int l3_proto,
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command = l3_offs << MVNETA_TX_L3_OFF_SHIFT;
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command |= ip_hdr_len << MVNETA_TX_IP_HLEN_SHIFT;
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if (l3_proto == swab16(ETH_P_IP))
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if (l3_proto == htons(ETH_P_IP))
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command |= MVNETA_TXD_IP_CSUM;
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else
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command |= MVNETA_TX_L3_IP6;
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