Depending on the source, a hardware calculated hash may not provide the
same level of collision resistance.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
net/mac80211/tx.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 6422da6690f7..f1c934f21d7e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3937,7 +3937,8 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
if (local->ops->wake_tx_queue) {
u16 queue = __ieee80211_select_queue(sdata, sta, skb);
skb_set_queue_mapping(skb, queue);
- skb_get_hash(skb);
+ if (!skb->sw_hash)
+ __skb_get_hash(skb);
}
if (sta) {
@@ -4191,7 +4192,8 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
if (local->ops->wake_tx_queue) {
u16 queue = __ieee80211_select_queue(sdata, sta, skb);
skb_set_queue_mapping(skb, queue);
- skb_get_hash(skb);
+ if (!skb->sw_hash)
+ __skb_get_hash(skb);
}
if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)) &&
--
2.28.0
