linux/drivers/firewire
Takashi Sakamoto 986c20bb3e firewire: core: fill model field in modalias of unit device for legacy layout of configuration ROM
As the last part of support for legacy layout of configuration ROM, this
commit traverses vendor directory as well as root directory when
constructing modalias for unit device. The change brings loss of backward
compatibility since it can fill model field ('mo') which is 0 at current
implementation in the case. However, we can be optimistic against
regression for unit drivers in kernel, due to some points:

1. ALSA drivers for audio and music units use the model fields to match
   device, however all of supported devices does not have such legacy
   layout.
2. the other unit drivers (e.g. sbp2) does not use the model field to
   match device.

The rest of concern is user space application. The most of applications
just take care of node device and does not use the modalias of unit
device, thus the change does not affect to them. But systemd project is
known to get affects from the change since it includes hwdb to take udev
to configure fw character device conveniently. I have a plan to work for
systemd so that the access permission of character device could be kept
across the change.

Suggested-by: Adam Goldman <adamg@pobox.com>
Link: https://lore.kernel.org/r/20231221134849.603857-9-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
2024-01-10 18:37:13 +09:00
..
.kunitconfig firewire: test: add KUnit test for device attributes 2024-01-08 09:36:56 +09:00
core-card.c Merge branch 'for-linus' into for-next 2022-05-23 07:48:27 +02:00
core-cdev.c firewire: cdev: implement new event relevant to phy packet with time stamp 2023-05-30 08:12:40 +09:00
core-device.c firewire: core: fill model field in modalias of unit device for legacy layout of configuration ROM 2024-01-10 18:37:13 +09:00
core-iso.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
core-topology.c Revert "firewire: core: obsolete usage of GFP_ATOMIC at building node tree" 2023-09-15 18:37:52 +09:00
core-transaction.c firewire: core: implement variations to send request and wait for response with time stamp 2023-05-30 08:12:40 +09:00
core.h firewire: Annotate struct fw_node with __counted_by 2023-11-05 21:15:17 +09:00
device-attribute-test.c firewire: core: fill model field in modalias of unit device for legacy layout of configuration ROM 2024-01-10 18:37:13 +09:00
init_ohci1394_dma.c firewire: init_ohci1394_dma: use correct function names in comments 2023-04-24 09:19:35 +09:00
Kconfig firewire: test: add KUnit test for device attributes 2024-01-08 09:36:56 +09:00
Makefile firewire: add KUnit test to check layout of UAPI structures 2023-05-30 08:12:39 +09:00
net.c firewire: net: fix use after free in fwnet_finish_incoming_packet() 2023-06-24 14:03:46 +09:00
nosy-user.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nosy.c firewire: nosy: switch from 'pci_' to 'dma_' API 2021-07-05 22:23:15 +02:00
nosy.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ohci.c firewire: ohci: suppress unexpected system reboot in AMD Ryzen machines and ASM108x/VT630x PCIe cards 2024-01-05 21:28:08 +09:00
ohci.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sbp2.c scsi: Change SCSI device boolean fields to single bit flags 2023-11-24 20:44:21 -05:00
uapi-test.c firewire: fix build failure due to missing module license 2023-05-30 19:37:29 +09:00