linux.git/drivers/firewire, branch v7.2-rc1

firewire: core: Open-code topology list walk

2026-06-13T02:10:23+00:00

A later change will make list_for_each_entry() cache the next element
before entering the loop body. for_each_fw_node() intentionally appends
newly discovered child nodes to the temporary walk list while the list is
being traversed.

Keep the loop open-coded so the next node is looked up only after
children have been appended. This preserves the current breadth-first
traversal semantics and prepares the code for the list iterator update.

Signed-off-by: Kaitao Cheng 
Link: https://lore.kernel.org/r/20260609061347.93688-3-kaitao.cheng@linux.dev
Signed-off-by: Takashi Sakamoto

firewire: core: cancel using delayed work for iso_resource_once management

2026-05-21T09:43:25+00:00

There is no need to use deferrable type of work for iso_resource_once
management because the work is queued to run immediately.

Link: https://lore.kernel.org/r/20260520130840.629934-4-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: rename member name for channel mask of isoc resource

2026-05-21T09:43:25+00:00

The iso_resource_params structure has a member for channel mask, while
the name of field is easy to misinterpret.

Append _mask to the member name.

Link: https://lore.kernel.org/r/20260520130840.629934-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: minor code refactoring for case-dependent parameters of iso resources management

2026-05-21T09:43:25+00:00

The generation parameter is specific to the auto case of iso resources
management, while it is in the common parameter structure.

Move the generation member to the structure specific to auto case.

Link: https://lore.kernel.org/r/20260520130840.629934-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: move allocation/reallocation paths into specific branch after isoc resource management in cdev

2026-05-03T11:44:21+00:00

After managing the actual isochronous resources, there is
post-processing logic to determine what type of event should be
notified. However, there is room for improvement.

This commit refactors the logic.

Link: https://lore.kernel.org/r/20260501135823.241940-5-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: refactor notification type determination after isoc resource management in cdev

2026-05-03T11:44:21+00:00

After managing the actual isochronous resources, there is
post-processing logic to determine what type of event should be
notified. However, there is room for improvement.

This commit refactors the logic.

Link: https://lore.kernel.org/r/20260501135823.241940-4-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: use switch statement for post-processing of isoc resource management in cdev

2026-05-03T11:44:21+00:00

The iso_resource_auto structure object has three states. The current
implementation of state evaluation before managing the actual isochronous
resources can be improved.

This commit refactors the evaluation logic using a switch statement.

Link: https://lore.kernel.org/r/20260501135823.241940-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: reduce critical section duration in pre-processing of isoc resource management in cdev

2026-05-03T11:44:21+00:00

It is preferable for the critical section to be as small as possible.
Current implementation of iso_resource_auto_work() function uses a
spinlock to control concurrent access to members of fw_card, fw_device,
iso_resource_auto structures, however the locking duration could be
reduced.

This commit refactors to shorten that duration.

Link: https://lore.kernel.org/r/20260501135823.241940-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: code cleanup for iso resource auto creation

2026-04-29T11:30:34+00:00

The init_iso_resource function is only called by
ioctl_allocate_iso_resource(), thus no need to be unique.

This commit unifies them with minor code refactoring.

Link: https://lore.kernel.org/r/20260429093449.160545-8-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto

firewire: core: append _auto suffix for non-once iso resource operations

2026-04-29T11:30:34+00:00

The functions for iso_resource once operations are carefully split from
another type of operation.

This commit adds _auto suffix to functions for the another type so that
it is easily to distinguish them.

Link: https://lore.kernel.org/r/20260429093449.160545-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto