[PATCH v2 0/9] ALSA: usb-audio: Refactor set_format()

[Eldad Zack <eldad@fogrefinery.com>]

Hi Takashi,

This is a low-priority series (applies against current for-next).
This series refactors set_format() and moves the sync endpoint
initilization code into separate function. The quirks for
implicit feedback are moved to a separate function as well.

The intended result is code that is easier to read without
function changes.

Changes from v2:
* Cleaned up the patchset, indentations and whitespace fixes.
* Patch #2: removed early returns when subs->sync_endpoint is already set.
  This change now follows original semantics.
* Patch #9: I first corrected it thanks to Clemens Ladisch's feedback, but
  then I wasn't sure if it improves anything, so I dropped it entirely.
* Dropped patch #10. Instead, added patch (now #9) to WARN_ON and return
  NULL in snd_usb_add_endpoint. Otherwise, the check should be done at each
  call site, and it "shouldn't happen" anyway.

Cheers,
Eldad

v1:
  http://mailman.alsa-project.org/pipermail/alsa-devel/2013-July/064268.html

Eldad Zack (9):
  ALSA: usb-audio: remove disabled debug code in set_format
  ALSA: usb-audio: remove assignment from if condition
  ALSA: usb-audio: separate sync endpoint setting from set_format
  ALSA: usb-audio: move implicit fb quirks to separate function
  ALSA: usb-audio: reverse condition logic in set_sync_endpoint
  ALSA: usb-audio: do not initialize and check implicit_fb
  ALSA: usb-audio: remove is_playback from implicit feedback quirks
  ALSA: usb-audio: remove implicit_fb from quirk
  ALSA: usb-audio: WARN_ON when alts is passed as NULL

 sound/usb/endpoint.c |   3 +
 sound/usb/pcm.c      | 243 +++++++++++++++++++++++++++++----------------------
 2 files changed, 141 insertions(+), 105 deletions(-)

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1.8.1.5