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firewire: ohci: use workqueue to handle events of AR request/response contexts

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This commit adds a work item to handle events of 1394 OHCI AR
request/response contexts, and queues the item to the specific workqueue.
The call of struct fw_address_handler.address_callback() is done in the
workqueue when receiving any requests from the remove nodes. Additionally,
the call of struct fw_packet.callback() is done in the workqueue too when
receiving acknowledge to the asynchronous packet for the response
subaction of split transaction to the remote nodes.

Link: https://lore.kernel.org/r/20250615133253.433057-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
This commit is contained in:
Takashi Sakamoto
2025-06-15 22:32:52 +09:00
parent 72bf144123
commit 57e6d9f85f
2 changed files with 15 additions and 19 deletions
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7
drivers/firewire/core-transaction.c
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@@ -557,9 +557,10 @@ const struct fw_address_region fw_unit_space_region =
*
* region->start, ->end, and handler->length have to be quadlet-aligned.
*
* When a request is received that falls within the specified address range,
* the specified callback is invoked. The parameters passed to the callback
* give the details of the particular request.
* When a request is received that falls within the specified address range, the specified callback
* is invoked. The parameters passed to the callback give the details of the particular request.
* The callback is invoked in the workqueue context in most cases. However, if the request is
* initiated by the local node, the callback is invoked in the initiator's context.
*
* To be called in process context.
* Return value: 0 on success, non-zero otherwise.