rfkill: rewrite

This patch completely rewrites the rfkill core to address
the following deficiencies:

 * all rfkill drivers need to implement polling where necessary
   rather than having one central implementation

 * updating the rfkill state cannot be done from arbitrary
   contexts, forcing drivers to use schedule_work and requiring
   lots of code

 * rfkill drivers need to keep track of soft/hard blocked
   internally -- the core should do this

 * the rfkill API has many unexpected quirks, for example being
   asymmetric wrt. alloc/free and register/unregister

 * rfkill can call back into a driver from within a function the
   driver called -- this is prone to deadlocks and generally
   should be avoided

 * rfkill-input pointlessly is a separate module

 * drivers need to #ifdef rfkill functions (unless they want to
   depend on or select RFKILL) -- rfkill should provide inlines
   that do nothing if it isn't compiled in

 * the rfkill structure is not opaque -- drivers need to initialise
   it correctly (lots of sanity checking code required) -- instead
   force drivers to pass the right variables to rfkill_alloc()

 * the documentation is hard to read because it always assumes the
   reader is completely clueless and contains way TOO MANY CAPS

 * the rfkill code needlessly uses a lot of locks and atomic
   operations in locked sections

 * fix LED trigger to actually change the LED when the radio state
   changes -- this wasn't done before

Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [thinkpad]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 0 insertions, 21 deletions

diff --git a/net/rfkill/rfkill-input.h b/net/rfkill/rfkill-input.h
deleted file mode 100644
index fe8df6b5b93..00000000000
--- a/net/rfkill/rfkill-input.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2007 Ivo van Doorn
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#ifndef __RFKILL_INPUT_H
-#define __RFKILL_INPUT_H
-
-void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state);
-void rfkill_epo(void);
-void rfkill_restore_states(void);
-void rfkill_remove_epo_lock(void);
-bool rfkill_is_epo_lock_active(void);
-enum rfkill_state rfkill_get_global_state(const enum rfkill_type type);
-
-#endif /* __RFKILL_INPUT_H */