From: Helmut Schaa Date: Wed, 28 Jan 2015 10:31:32 +0000 (+0100) Subject: ath10k: Use TX cksum offload only for CHECKSUM_PARTIAL X-Git-Tag: firefly_0821_release~176^2~2371^2~10^2^2~2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=75930d1a80e81052376ffc5298aadfe8a075d9d2;p=firefly-linux-kernel-4.4.55.git ath10k: Use TX cksum offload only for CHECKSUM_PARTIAL Otherwise ath10k will just checksum everything even if it did not go through the TCP/IP stack (for example bridged frames). In the worst case this could mean recreating the checksum for incorrect data. Signed-off-by: Helmut Schaa Signed-off-by: Kalle Valo --- diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index c1961e77d58d..cbd2bc9e6202 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -515,8 +515,10 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID); flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID); - flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD; - flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD; + if (msdu->ip_summed == CHECKSUM_PARTIAL) { + flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD; + flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD; + } /* Prevent firmware from sending up tx inspection requests. There's * nothing ath10k can do with frames requested for inspection so force