From: Johannes Berg <johannes.berg@xxxxxxxxx>
On Bz devices, the hardware checksums including the SNAP header,
starting directly after the MAC header, so we don't need the
extra checks and can just pass the checksum to mac80211.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index de36255997b5..5f73717f2f5f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -172,8 +172,12 @@ static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
* in the cases the hardware didn't handle, since it's rare to see
* such packets, even though the hardware did calculate the checksum
* in this case, just starting after the MAC header instead.
+ *
+ * Starting from Bz hardware, it calculates starting directly after
+ * the MAC header, so that matches mac80211's expectation.
*/
- if (skb->ip_summed == CHECKSUM_COMPLETE) {
+ if (skb->ip_summed == CHECKSUM_COMPLETE &&
+ mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_BZ) {
struct {
u8 hdr[6];
__be16 type;
--
2.34.1
