From 1b4fc0e249d61916b8a525b0e7b3c028232457c9 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Thu, 11 Jul 2013 15:48:21 +0300 Subject: [PATCH] bnx2x: fix tunneling CSUM calculation Since commit c957d09ffda417f6c8e3d1f10e2b05228607d6d7 "bnx2x: Remove sparse and coccinelle warnings" driver provided wrong partial csum for HW in tunneing scenarios. Reported-by: Eric Dumazet CC: Alexander Duyck CC: Pravin Shelar CC: Cong Wang Signed-off-by: Dmitry Kravkov Tested-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index 3353efe79194..ee350bde1818 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -3543,9 +3543,9 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, /* outer IP header info */ if (xmit_type & XMIT_CSUM_V4) { struct iphdr *iph = ip_hdr(skb); - u16 csum = (__force u16)(~iph->check) - - (__force u16)iph->tot_len - - (__force u16)iph->frag_off; + u32 csum = (__force u32)(~iph->check) - + (__force u32)iph->tot_len - + (__force u32)iph->frag_off; pbd2->fw_ip_csum_wo_len_flags_frag = bswab16(csum_fold((__force __wsum)csum)); -- 2.30.2