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iwlwifi: mvm: don't mess the SNAP header in TSO for non-QoS packets 

When we get large sends on non-QoS association, we had a
bug that mangled the SNAP header. Fix that.

Fixes: a6d5e32f24 ("iwlwifi: mvm: send large SKBs to the transport")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Emmanuel Grumbach 2017-06-21 09:40:15 +03:00 committed by Luca Coelho
parent 52848a79b9
commit 6344436e9d
1 changed files with 6 additions and 4 deletions
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10
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
View File

@ -849,11 +849,13 @@ segment:
if (tcp_payload_len > mss) { if (tcp_payload_len > mss) {
skb_shinfo(tmp)->gso_size = mss; skb_shinfo(tmp)->gso_size = mss;
} else { } else {
qc = ieee80211_get_qos_ctl((void *)tmp->data); if (ieee80211_is_data_qos(hdr->frame_control)) {
qc = ieee80211_get_qos_ctl((void *)tmp->data);
if (ipv4) if (ipv4)
ip_send_check(ip_hdr(tmp)); ip_send_check(ip_hdr(tmp));
*qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
}
skb_shinfo(tmp)->gso_size = 0; skb_shinfo(tmp)->gso_size = 0;
} }