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Re: [PATCH 1/4] mac80211: check per vif offload_flags in Tx path

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On 2021-06-17 20:53, Ryder Lee wrote:
> offload_flags has been introduced to indicate encap status of each interface.
> An interface can encap offload at runtime, or if it has some extra limitations
> it can simply override the flags, so it's more flexible to check offload_flags
> in Tx path.
> 
> Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
> ---
>  net/mac80211/tx.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
> index 0a4bc9e08637..8cb1289c704a 100644
> --- a/net/mac80211/tx.c
> +++ b/net/mac80211/tx.c
> @@ -3695,7 +3698,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
>  	}
>  
>  	if (skb_has_frag_list(skb) &&
> -	    !ieee80211_hw_check(&local->hw, TX_FRAG_LIST)) {
> +	    (!ieee80211_hw_check(&local->hw, TX_FRAG_LIST) ||
> +	     vif->offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)) {
>  		if (skb_linearize(skb)) {
>  			ieee80211_free_txskb(&local->hw, skb);
>  			goto begin;
I think this chunk should be dropped.

- Felix



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