From: Edward Cree <ecree@solarflare.com>
Date: Fri, 3 Mar 2017 15:22:27 +0000 (+0000)
Subject: sfc: fix IPID endianness in TSOv2
X-Git-Tag: v4.14-rc1~1340^2~2^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6d43131c158f42e2138d83495d19c70ed5cc0ffe;p=platform%2Fkernel%2Flinux-rpi.git

sfc: fix IPID endianness in TSOv2

The value we read from the header is in network byte order, whereas
 EFX_POPULATE_QWORD_* takes values in host byte order (which it then
 converts to little-endian, as MCDI is little-endian).

Fixes: e9117e5099ea ("sfc: Firmware-Assisted TSO version 2")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 4d88e85..c60c2d4 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -2183,7 +2183,7 @@ static int efx_ef10_tx_tso_desc(struct efx_tx_queue *tx_queue,
 		/* Modify IPv4 header if needed. */
 		ip->tot_len = 0;
 		ip->check = 0;
-		ipv4_id = ip->id;
+		ipv4_id = ntohs(ip->id);
 	} else {
 		/* Modify IPv6 header if needed. */
 		struct ipv6hdr *ipv6 = ipv6_hdr(skb);