Re: [PATCH 0/5] firewire: use sleepable workqueue to handle 1394 OHCI IT/IR context events

[Takashi Sakamoto <o-takashi@sakamocchi.jp>]

On Wed, Sep 04, 2024 at 09:51:49PM +0900, Takashi Sakamoto wrote:
> Hi,
> 
> This series of changes updates my previous RFT[1] to apply for v6.12
> kernel. For the detail, please refer to the previous one.
> 
> To Iwai-san, this series includes the change for sound subsystem as
> well. All of changes are specific to ALSA firewire stack, so I would
> like to send it to Linus as the part of firewire subsystem updates if
> you do not mind it.
> 
> Changes from the RFT:
> * WQ_FREEZABLE is newly supported in the workqueue
> * Improve code comment in IEC 61883-1/6 packet streaming engine
> * Avoid dead lock in the calls of workqueue sync API
> 
> [1] https://lore.kernel.org/lkml/20240901110642.154523-1-o-takashi@sakamocchi.jp/
> 
> 
> Regards
> 
> Takashi Sakamoto (5):
>   firewire: core: allocate workqueue to handle isochronous contexts in
>     card
>   firewire: core: add local API to queue work item to workqueue specific
>     to isochronous contexts
>   firewire: ohci: operate IT/IR events in sleepable work process instead
>     of tasklet softIRQ
>   firewire: core: non-atomic memory allocation for isochronous event to
>     user client
>   ALSA: firewire: use nonatomic PCM operation
> 
>  drivers/firewire/core-card.c             | 33 ++++++++++++--
>  drivers/firewire/core-cdev.c             |  4 +-
>  drivers/firewire/core-iso.c              | 30 ++++++++++++-
>  drivers/firewire/core.h                  | 14 +++++-
>  drivers/firewire/ohci.c                  | 57 +++++++++++++++++++-----
>  include/linux/firewire.h                 |  3 ++
>  sound/firewire/amdtp-stream.c            | 34 +++++++++++---
>  sound/firewire/bebob/bebob_pcm.c         |  1 +
>  sound/firewire/dice/dice-pcm.c           |  1 +
>  sound/firewire/digi00x/digi00x-pcm.c     |  1 +
>  sound/firewire/fireface/ff-pcm.c         |  1 +
>  sound/firewire/fireworks/fireworks_pcm.c |  1 +
>  sound/firewire/isight.c                  |  1 +
>  sound/firewire/motu/motu-pcm.c           |  1 +
>  sound/firewire/oxfw/oxfw-pcm.c           |  1 +
>  sound/firewire/tascam/tascam-pcm.c       |  1 +
>  16 files changed, 157 insertions(+), 27 deletions(-)

I applied all of them to for-next branch.


Regards

Takashi Sakamoto