Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

We do not support many contexts.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Also rename config names IWLWIFI_LEGACY to IWLEGACY
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

We do not take reg_lock during poll bit, so mark it such
using underscore.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Introduce rule that underscore at the beginning mean unlocked I/O method.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

More renaming to make code shorter.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

Make code shorter.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

iwl_legacy prefix result in long function names, what cause that we
have frequent line split and not readable code. Also iwl_foo symbols
are duplicated in iwlwifi driver, what is annoying when editing
kernel tree with cscope.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

This is not useful.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>

iwlegacy version of fix:

commit effd4d9a
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Thu Sep 15 11:46:52 2011 -0700

    iwlagn: do not use interruptible waits

    Since the dawn of its time, iwlwifi has used
    interruptible waits to wait for synchronous
    commands and firmware loading.

    This leads to "interesting" bugs, because it
    can't actually handle the interruptions; for
    example when a command sending is interrupted
    it will assume the command completed fully,
    and then leave it pending, which leads to all
    kinds of trouble when the command finishes
    later.

    Since there's no easy way to gracefully deal
    with interruptions, fix the driver to not use
    interruptible waits.

    This at least fixes the error
    iwlagn 0000:02:00.0: Error: Response NULL in  'REPLY_SCAN_ABORT_CMD'

    I have seen in P2P testing, but it is likely
    that there are other errors caused by this.

Cc: stable@kernel.org # 2.6.39+
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

linux/wireless.h and net/iw_handler.h headers are
for wireless extensions only, so mac80211 drivers
shouldn't be including them.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Multiple quoted strings are concatenated without comma separators.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Patch 7f1f9742 "iwlegacy: refactor iwl4965_mac_channel_switch"
reversed a test and also it changed a spin_lock_irq() to
spin_lock().  I assume the spin_lock change was a mistake because
the unlock was left as spin_unlock_irq().
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use less indentions and remove uneeded irq-save flags.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Messages like that

iwl4965 0000:03:00.0: Start IWL Event Log Dump: display last 20 entries
iwl4965 0000:03:00.0: EVT_LOGT:1821445332:0x00000000:1352
iwl4965 0000:03:00.0: EVT_LOGT:1821445332:0x00000001:1353
iwl4965 0000:03:00.0: EVT_LOGT:1821445336:0x0000000c:0357
iwl4965 0000:03:00.0: EVT_LOGT:1821445533:0x00000107:0106
iwl4965 0000:03:00.0: EVT_LOGT:1821445534:0x00000000:0302
iwl4965 0000:03:00.0: EVT_LOGT:1821445574:0x000000d4:0321
iwl4965 0000:03:00.0: EVT_LOGT:1821445575:0x00000000:1350
iwl4965 0000:03:00.0: EVT_LOGT:1821445576:0x00000000:1351
iwl4965 0000:03:00.0: EVT_LOGT:1821445576:0x00000000:1352
iwl4965 0000:03:00.0: EVT_LOGT:1821445577:0x00000001:1353
iwl4965 0000:03:00.0: EVT_LOGT:1821445581:0x0000000d:0357
iwl4965 0000:03:00.0: EVT_LOGT:1821446327:0x00000107:0106
iwl4965 0000:03:00.0: EVT_LOGT:1821446328:0x00000000:0302
iwl4965 0000:03:00.0: EVT_LOGT:1821446368:0x000000d4:0321
iwl4965 0000:03:00.0: EVT_LOGT:1821446369:0x00000000:1350
iwl4965 0000:03:00.0: EVT_LOGT:1821446370:0x00000000:1351
iwl4965 0000:03:00.0: EVT_LOGT:1821446370:0x00000000:1352
iwl4965 0000:03:00.0: EVT_LOGT:1821446371:0x00000001:1353
iwl4965 0000:03:00.0: EVT_LOGT:1821446375:0x0000000e:0357
iwl4965 0000:03:00.0: EVT_LOGT:1821446383:0x00000000:0125

are completely useless for me. Remove bunch of code that generate them.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We do not reset radio anymore, hence don't need that code too.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We use priv->mutex to avoid race conditions between chswitch_done()
and mac_channel_switch(), when marking channel switch in
progress. But chswitch_done() can be called in atomic context
from rx_csa() or with mutex already taken from commit_rxon().

To fix remove mutex from chswitch_done() and use atomic bitops
for marking channel switch pending.

Cc: stable@kernel.org # 2.6.39+
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

We now use priv->mutex to serialize sync command, remove old
priv->sync_cmd_mutex and add assertion that priv->mutex must be locked.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Check status bits with mutex taken, because when we wait for mutex
unlock, status can change. Patch should also make remaining sync
commands be send with priv->mutex taken. That will prevent execute
these commands when we are currently reset firmware, what could
possibly cause troubles.
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add two below iwlwifi commits to iwlegacy:

commit 554d1d02
Author: Stanislaw Gruszka <sgruszka@redhat.com>
Date:   Thu Dec 23 12:38:21 2010 +0100

    iwlagn: enable only rfkill interrupt when device is down

commit 3dd823e6
Author: Don Fry <donald.h.fry@intel.com>
Date:   Sun Feb 6 09:29:45 2011 -0800

    iwlagn: Re-enable RF_KILL interrupt when down
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix the following:

WARNING: at drivers/net/wireless/iwlegacy/iwl-4965.c:1128 \
iwl4965_send_tx_power+0x61/0x102 [iwl4965]() Hardware name: [...]
TX Power requested while scanning!

Pid: 5723, comm: kworker/u:28 Not tainted 2.6.39-0.rc4.4.fc14.x86_64 #1
Call Trace:
 [<ffffffff8104e27b>] warn_slowpath_common+0x85/0x9d
 [<ffffffffa02782e0>] ? iwl4965_show_temperature+0x49/0x49 [iwl4965]
 [<ffffffff8104e336>] warn_slowpath_fmt+0x46/0x48
 [<ffffffffa027712f>] iwl4965_send_tx_power+0x61/0x102 [iwl4965]
 [<ffffffff81477e05>] ? mutex_lock+0x36/0x50
 [<ffffffffa0278337>] iwl4965_bg_txpower_work+0x57/0x73 [iwl4965]
 [<ffffffff810647f3>] process_one_work+0x18d/0x286
 [<ffffffff81065a5e>] worker_thread+0xfd/0x181
 [<ffffffff81065961>] ? manage_workers.clone.16+0x172/0x172
 [<ffffffff81069036>] kthread+0x82/0x8a
 [<ffffffff81480524>] kernel_thread_helper+0x4/0x10
 [<ffffffff81068fb4>] ? kthread_worker_fn+0x14b/0x14b
 [<ffffffff81480520>] ? gs_change+0x13/0x13
Reported-and-tested-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>