On Thu, Jul 23, 2009 at 11:54 AM, Gao Lei<lei.alvin.gao@xxxxxxxxx> wrote: > On Wed, 2009-07-22 at 12:30 -0700, Luis R. Rodriguez wrote: >> On Wed, Jul 22, 2009 at 12:23 PM, Gao Lei wrote: >> > On amd64, the `ieee80211_tx_info' struct takes 56 bytes, thus cannot fit >> > into skb's control buffer. >> >> 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 > > Hi, > > I am using kernel 2.6.26. Just tested compat-wireless and yes it works! > Here the TX info struct takes exactly 48 bytes so it can fit well into > the control buffer. > > Btw, I came up with the 'iwlagn: Unknown symbol iwl4965_agn_cfg' issue > though (actually also in compat-wireless-old). Strange as it seems > there're already some treatments there. Will look at it later. May be a real issue. You can try wireless-testing directly and see if it happens there. > While it's great to see compat-wireless working for more old kernels, I > wonder if compat-wireless-old is still actively maintained? Well sure its maintained, its just deprecated now as we can backport compat-wireless. The issue we had with compat-wireless-old is lack of interest from developers to support it as no one cared for old drivers and that old kernels. > Asking this > because currently most of the documentations still describe it as > 'compat-wireless-old for <= 2.6.26 and compat-wireless for >= 2.6.27', > and I was probably not the only amd64 user reading that. :) Well so a few things: 1) We hadn't announced compat-wireless was available for older kernels now. This was really because we had no testers. 2) you are the first to report success with 2.6.26 so that's a plus, so now you can go ahead and update the documentation (its a wiki after all) to mention this 3) If someone reports success with 2.6.25 then we bring the documentation down to 2.6.25 and so on 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
