kernel/linux.git/drivers/firewire/core-transaction.c, branch v6.12.80

firewire: core: replace IDR with XArray to maintain fw_device

2024-08-12T01:42:50+00:00

In core function, the instances of fw_device corresponding to firewire device node in system are maintained by IDR. As of kernel v6.0, IDR has been superseded by XArray and deprecated. This commit replaces the usage of IDR with XArray to maintain the device instances. The instance of XArray is allocated statically, and initialized with XA_FLAGS_ALLOC so that the index of allocated entry starts with zero and available as the minor identifier of device node. Link: https://lore.kernel.org/r/20240812014251.165492-2-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use guard macro to maintain properties of fw_card

2024-08-05T08:54:05+00:00

The core functions uses spinlock in instance of fw_card structure to protect concurrent access to properties in the instance. This commit uses guard macro to maintain the spinlock. Link: https://lore.kernel.org/r/20240805085408.251763-15-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use guard macro to maintain list of asynchronous transaction

2024-08-05T08:54:04+00:00

The core function maintains pending asynchronous transactions by list in the instance of fw_card. The concurrent access to the list is protected by spinlock in the instance. This commit uses guard macro to maintain the spinlock. Link: https://lore.kernel.org/r/20240805085408.251763-14-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use guard macro to maintain the list of address handler for transaction

2024-08-05T08:53:58+00:00

The core function maintains address handlers by list. It is protected by spinlock to insert and remove entry to the list. This commit uses guard macro to maintain the spinlock. Link: https://lore.kernel.org/r/20240805085408.251763-8-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use guard macro to maintain RCU scope for transaction address handler

2024-08-05T08:53:56+00:00

The core function maintains address handlers by list. RCU is utilized for efficient read access to any entries in the list. This commit uses guard macro to maintain RCU locking and releasing. Link: https://lore.kernel.org/r/20240805085408.251763-6-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use guard macro to maintain static packet data for phy configuration

2024-08-05T08:53:52+00:00

The core function provide a kernel API to send phy configuration packet. Current implementation of the feature uses packet object allocated statically. The concurrent access to the object is protected by static mutex. This commit uses guard macro to maintain the mutex. Link: https://lore.kernel.org/r/20240805085408.251763-2-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use common helper function to serialize phy configuration packet

2024-07-29T13:46:31+00:00

A common helper function is available to serialize the first quadlet of phy configuration packet. This commit is for the purpose. Link: https://lore.kernel.org/r/20240729134631.127189-4-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: use inline helper functions to serialize phy config packet

2024-06-16T23:37:04+00:00

This commit uses the added helper functions to obsolete the existing implementation for phy configuration packet. Link: https://lore.kernel.org/r/20240606235133.231543-3-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: arrangement header inclusion for tracepoints events

2024-06-16T23:37:03+00:00

It is a bit inconvenient to put the relative path to local header from tree-wide header. This commit delegates the selection to include headers into users. Link: https://lore.kernel.org/r/20240605235155.116468-11-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto

firewire: core: record card index in async_phy_inbound tracepoints event

2024-06-15T05:59:17+00:00

The asynchronous transmission of phy packet is initiated on one of 1394 OHCI controller, however the existing tracepoints events has the lack of data about it. This commit adds card_index member into event structure to store the index of host controller in use, and prints it. Link: https://lore.kernel.org/r/20240613131440.431766-7-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto