linux-kernel - Compat / compat-wireless / bluetooth for 2.6.33-rc4 and 2.6.32.3

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Date:	Wed, 13 Jan 2010 23:21:15 -0800
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	linux-wireless <linux-wireless@...r.kernel.org>,
	linux-bluetooth@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: Compat / compat-wireless / bluetooth for 2.6.33-rc4 and 2.6.32.3

The 2.6.33-rc4 and 2.6.32.3 kernels came out a few days ago, along
with it comes the respective 2.6.33-rc4 [1] and 2.6.32.3 [2]
compat-wireless releases [3]. As noted previously the
compat-wireless-2.6.33 releases now also have bluetooth backported for
kernels >= 2.6.27.

A few release notes:

 * compat.git - generic kernel compatibility package. This is
currently used on bleeding edge compat-wireless and the 2.6.33
compat-wireless releases. Other external drivers are welcomed to take
advantage of this though.
  - gets pm-qos for kernels down to 2.6.23
  - gets the new 2.6.33 firmware_class backported for older kernels
which allows usage of
    drivers with thew new request_firmware_nowait(). Users of this for
802.11 right now are ar9170.
    This actually goes only compile tested, please let me know if this worked.

  * compat-wireless-2.6.32.3:
    - now goes all the way down to 2.6.23 for ath5k and ath9k, should
be easy to test/enable others
    - gets pm-qos backport as well

  * compat-wireless-2.6.33-rc4:
    - The new debugfs_remove_recursive(), added as of 2.6.26 but used
on 802.11 only until
      2.6.32-rc4 on both mac80211 and cfg80211 cannot be backported as
it relies on two
      static variables on fs/debugfs/inode.c, to enable backporting
for older kernels than
      2.6.26 we'll need to relabel CONFIG_CFG80211_DEBUGFS and
CONFIG_MAC80211_DEBUGFS
      and disable them for older kernels.

Due to the new multiqueue patch we only support kernels >= 2.6.27 on
bleeding edge compat-wireless. This patch is due to go into stable
down to 2.6.32 so both next releases 2.6.32.4 and 2.6.32-rc5 are
expected to have this and as such will have backporting disabled for
older kernels as well until we figure out how to properly backport
this.

The compat-wireless 2.6.32.3 release causes this harmless warning on
older kernels < 2.6.24, it can safely be ingored, I see no way of
avoiding it.

  CC [M]  /home/mcgrof/devel/compat-wireless-2.6/net/rfkill/input.o
In file included from
/home/mcgrof/devel/compat-wireless-2.6/net/rfkill/input.c:16:
include/linux/input.h:933:1: warning: "BIT" redefined
In file included from include/asm-i386/cpufeature.h:11,
                 from include/asm/cpufeature.h:10,
                 from include/asm/alternative.h:43,
                 from include/asm/atomic.h:4,
                 from
/home/mcgrof/devel/compat-wireless-2.6/include/net/compat-2.6.24.h:11,
                 from
/home/mcgrof/devel/compat-wireless-2.6/include/net/compat.h:15,
                 from <command-line>:0:

 Luis

[1] http://www.orbit-lab.org/kernel/compat-wireless-2.6-stable/v2.6.33/compat-wireless-2.6.33-rc4.tar.bz2
[2] http://www.orbit-lab.org/kernel/compat-wireless-2.6-stable/v2.6.32/compat-wireless-2.6.32.3.tar.bz2
[3] http://wireless.kernel.org/en/users/Download/stable
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