From: Emmanuel Grumbach emmanuel.grumbach@intel.com
[ Upstream commit 6344436e9d3f4fb4878c12169477d4beb5b825ea ]
When we get large sends on non-QoS association, we had a bug that mangled the SNAP header. Fix that.
Fixes: a6d5e32f247c ("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 Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 790952e48262..5dfd6a775e2b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -786,11 +786,13 @@ segment: if (tcp_payload_len > mss) { skb_shinfo(tmp)->gso_size = mss; } 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) - ip_send_check(ip_hdr(tmp)); - *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; + if (ipv4) + ip_send_check(ip_hdr(tmp)); + *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; + } skb_shinfo(tmp)->gso_size = 0; }