On Wed, Jul 22, 2009 at 12:23 PM, Gao Lei<lei.alvin.gao@xxxxxxxxx> wrote: > On amd64, the `ieee80211_tx_info' struct takes 56 bytes, thus cannot fit > into skb's control buffer. > > The very first result is that nothing can be really sent out, because > skb's next member `len' also gets cleared when doing: > > info = IEEE80211_SKB_CB(skb); > memset(info, 0, sizeof(*info)); > > A quick fix may be removing the TX control's sta pointer, since IMHO > it's rarely used for now (the only place that I found was a function > assigning values to it). > > It has been working well for me so far, but please let me know if > there're better solutions. Thanks! > > Best regards, > Gao Lei Thanks, what kernel is this against BTW? Just so you know we should be able to bring down compat-wireless down to 2.6.21 and maybe even further now that we no longer are using the master netdev, which used the multiqueue support added as of 2.6.27. Last I checked compat-wireless now compiles on 2.6.25, but I never actually tried loading it as I'm on ext4. So if you are on 2.6.25 or 2.6.26 you may want to try out compat-wireless directly and see if to works. If you are on 2.6.21..2.6.24 you can try adding backport support. I've added a few files already for older kernel support based on our old compat-wireless-old effort, so only the new stuff that mac80211 makes use of should require backporting. Luis -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
