From b9c015d421946fe3675fcb9cbacd0a37f1d3263c Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Mon, 12 Dec 2016 15:44:17 -0800 Subject: [PATCH] i40e: mark the value passed to csum_replace_by_diff as __wsum Fix, or rather, avoid a sparse warning caused by the fact that csum_replace_by_diff expects to receive a __wsum value. Since the calculation appears to work, simply typecast the passed paylen value to __wsum to avoid the warning. This seems pretty fishy since __wsum was obviously annotated as a separate type on purpose, so this throws the entire calculation into question. Since it currently appears to behave as expected, the typecast is probably safe. Change-ID: I4fdc5cddd589abc16098176e8a61127e761488f4 Signed-off-by: Jacob Keller Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 5 +++-- drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 4dc993bb16bf..97d46058d71d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2335,7 +2335,8 @@ static int i40e_tso(struct i40e_tx_buffer *first, u8 *hdr_len, /* remove payload length from outer checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.udp->check, htonl(paylen)); + csum_replace_by_diff(&l4.udp->check, + (__force __wsum)htonl(paylen)); } /* reset pointers to inner headers */ @@ -2356,7 +2357,7 @@ static int i40e_tso(struct i40e_tx_buffer *first, u8 *hdr_len, /* remove payload length from inner checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.tcp->check, htonl(paylen)); + csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); /* compute length of segmentation header */ *hdr_len = (l4.tcp->doff * 4) + l4_offset; diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index 7cd28ef6e714..c91fcf43ccbc 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -1629,7 +1629,8 @@ static int i40e_tso(struct i40e_tx_buffer *first, u8 *hdr_len, /* remove payload length from outer checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.udp->check, htonl(paylen)); + csum_replace_by_diff(&l4.udp->check, + (__force __wsum)htonl(paylen)); } /* reset pointers to inner headers */ @@ -1650,7 +1651,7 @@ static int i40e_tso(struct i40e_tx_buffer *first, u8 *hdr_len, /* remove payload length from inner checksum */ paylen = skb->len - l4_offset; - csum_replace_by_diff(&l4.tcp->check, htonl(paylen)); + csum_replace_by_diff(&l4.tcp->check, (__force __wsum)htonl(paylen)); /* compute length of segmentation header */ *hdr_len = (l4.tcp->doff * 4) + l4_offset;