compat-wireless + Linux 2.6.26.8 testing results

[Pavel Roskin <proski@gnu.org>]

On Fri, 2010-02-12 at 18:10 -0800, Luis R. Rodriguez wrote:
> The bleeding edge compat-wireless updates were stuck due to a
> bluetooth hunk failing on net/bluetooth/hidp/core.c, that should be
> fixed now, at least it compiles for me down to 2.6.27. I also hadn't
> updated a 2.6.33-rcx releases in a while, as well as 2.6.32.y release.
> This should all now be in synch with upstream. I never got reports
> about MQ support on older kernels so I just threw in the code, issues
> can be dealt with once actually found.

I've tried compiling all three tarballs against Linux 2.6.26.8.  It's a
kernel with some hardware patches for arm architecture that are hard to
port to newer kernels, so compat-wireless would be very helpful.

compat-wireless-2.6.32.8 compiles just fine with ath5k selected.

compat-wireless-2.6.33-rc8 fails:

/home/proski/src/compat-wireless-2.6.33-rc8/net/mac80211/util.c: In
function '__ieee80211_wake_queue':
/home/proski/src/compat-wireless-2.6.33-rc8/net/mac80211/util.c:290:
error: implicit declaration of function 'netif_tx_wake_queue'
/home/proski/src/compat-wireless-2.6.33-rc8/net/mac80211/util.c:290:
error: implicit declaration of function 'netdev_get_tx_queue'
/home/proski/src/compat-wireless-2.6.33-rc8/net/mac80211/util.c: In
function '__ieee80211_stop_queue':
/home/proski/src/compat-wireless-2.6.33-rc8/net/mac80211/util.c:325:
error: implicit declaration of function 'netif_tx_stop_queue'

compat-wireless-2010-02-13 fails differently:

/home/proski/src/compat-wireless-2010-02-13/net/mac80211/iface.c: In
function 'ieee80211_if_setup':
/home/proski/src/compat-wireless-2010-02-13/net/mac80211/iface.c:738:
error: 'struct net_device' has no member named 'select_queue'
/home/proski/src/compat-wireless-2010-02-13/net/mac80211/iface.c: In
function 'ieee80211_setup_sdata':
/home/proski/src/compat-wireless-2010-02-13/net/mac80211/iface.c:790:
error: 'struct net_device' has no member named 'select_queue'

I tried enabling CONFIG_NETDEVICES_MULTIQUEUE, but it made no
difference.

It looks like compat-wireless-2.6.33-rc8 and compat-wireless-2010-02-13
don't have the patches to deal with the lack of netif_tx_wake_queue and
select_queue in Linux 2.6.26.  compat-wireless-2.6.32.8 has such
patches.

If all drivers are selected, compat-wireless-2.6.32.8 fails:

In file included
from /home/proski/src/compat-wireless-2.6.32.8/drivers/net/b44.c:28:
/home/proski/src/compat-wireless-2.6.32.8/include/linux/ssb/ssb.h: In
function 'ssb_dma_sync_single_range_for_cpu':
/home/proski/src/compat-wireless-2.6.32.8/include/linux/ssb/ssb.h:595:
error: implicit declaration of function 'dma_sync_single_range_for_cpu'
/home/proski/src/compat-wireless-2.6.32.8/include/linux/ssb/ssb.h: In
function 'ssb_dma_sync_single_range_for_device':
/home/proski/src/compat-wireless-2.6.32.8/include/linux/ssb/ssb.h:620:
error: implicit declaration of function
'dma_sync_single_range_for_device'

That appears to be caused by the lack of
dma_sync_single_range_for_device on the arm architecture.  Other
architectures have it.  "make -k" doesn't find any other errors.  All
other drivers compile fine.

-- 
Regards,
Pavel Roskin