[PATCH v3 0/3] firmware_class: encapsulate firmware loading status

[Daniel Wagner <wagi@monom.org>]

From: Daniel Wagner <daniel.wagner@bmw-carit.de>

This version should address all comments from Luis. In the last patch
the fw_lock dependency is dropped. This only works if we garantee not
to race between the reader and the writer side in combination in going
to sleep and waking up. So here that should now be a good argument for
swait :)

cheers,
daniel

changes since v2:
  - more splitting out
    - first patch factors out all the bit ops into fw_status
    - second patch gets rid of the bit ops
    - third get rid of fw_lock by using swait

changes since v1:
  - moved swait change into its own patch
  - added ifdef section for FW_LOADER_USER_HELPER_FALLBACK
  - updated commit message highlighting the mutex usage drop a bit

  https://lkml.org/lkml/2016/8/4/239

Cc: Ming Lei <ming.lei@canonical.com>
Cc: Luis R. Rodriguez <mcgrof@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Daniel Wagner (3):
  firmware_class: encapsulate firmware loading status
  firmware_class: Drop bit ops in favor of simple state machine
  firmware_class: Do not use fw_lock for fw_status protection

 drivers/base/firmware_class.c | 153 ++++++++++++++++++++++++++----------------
 1 file changed, 94 insertions(+), 59 deletions(-)

-- 
2.7.4