[Ieee80211-devel] Re: [PATCH ieee80211] fix TX skb allocation flags and size

[Jeff G. <jg...@po...>]

Michael Buesch wrote:
> @@ -221,11 +221,13 @@ static struct ieee80211_txb *ieee80211_a
>   txb->frag_size = txb_size;
>  
>  	for (i = 0; i < nr_frags; i++) {
> -		txb->fragments[i] = dev_alloc_skb(txb_size);
> +		txb->fragments[i] = __dev_alloc_skb(txb_size + headroom,
> +						    gfp_mask | GFP_DMA);
>  		if (unlikely(!txb->fragments[i])) {
>  			i--;

Very wrong.  GFP_DMA means ISA DMA.

See pci_map_xxx() and other DMA API functions.

	Jeff