[PATCH net] iwlwifi: provide gso_type to GSO packets

[Eric Dumazet]

From: Eric Dumazet <eduma...@google.com>

net/core/tso.c got recent support for USO, and this broke iwlfifi
because the driver implemented a limited form of GSO.

Providing ->gso_type allows for skb_is_gso_tcp() to provide
a correct result.

Fixes: 3d5b459ba0e3 ("net: tso: add UDP segmentation support")
Signed-off-by: Eric Dumazet <eduma...@google.com>
Reported-by: Ben Greear <gree...@candelatech.com>
Bisected-by: Ben Greear <gree...@candelatech.com>
Tested-by: Ben Greear <gree...@candelatech.com>
Cc: Luca Coelho <luciano.coe...@intel.com>
Cc: linux-wirel...@vger.kernel.org
Cc: Johannes Berg <johan...@sipsolutions.net>
---
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c 
b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 
a983c215df310776ffe67f3b3ffa203eab609bfc..3712adc3ccc2511d46bcc855efbfba41c487d8e6
 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -773,6 +773,7 @@ iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int 
num_subframes,
 
        next = skb_gso_segment(skb, netdev_flags);
        skb_shinfo(skb)->gso_size = mss;
+       skb_shinfo(skb)->gso_type = ipv4 ? SKB_GSO_TCPV4 : SKB_GSO_TCPV6;
        if (WARN_ON_ONCE(IS_ERR(next)))
                return -EINVAL;
        else if (next)
@@ -795,6 +796,8 @@ iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int 
num_subframes,
 
                if (tcp_payload_len > mss) {
                        skb_shinfo(tmp)->gso_size = mss;
+                       skb_shinfo(tmp)->gso_type = ipv4 ? SKB_GSO_TCPV4 :
+                                                          SKB_GSO_TCPV6;
                } else {
                        if (qos) {
                                u8 *qc;
-- 
2.30.0.280.ga3ce27912f-goog