Thread (7 messages) flat view 7 messages, 3 authors, 1d ago
WARM1d

[PATCH 0/4] dma: use designated initializers for acpi_device_id

From: Pawel Zalewski <hidden>
Date: 2026-09-04 14:11:03
Also in: linux-arm-kernel, linux-arm-msm, lkml

This series is converting lists that contain the acpi_device_id
struct, which is defined in the include/linux/device-id/acpi.h
to make use of named initializers (which they do not use currently).
This work is part of the on going effort in the kernel associated
with device-ids [1]

The plan is to convert acpi_device_id::driver_data to have an anonymous
union, similarly to what was introduced for PCI and I2C device ID tables.
The goal is to increase type-safety (as most of the existing casts are gone),
to improve readability and to make use intent a bit more clear:
union {
	kernel_ulong_t driver_data;
	const void *driver_data_ptr;
}
But for that to work all lists containing the structs need to use named
initializers first to avoid triggering -Wmissing-braces. I already have
patches that implement this and touching a lot of kernel subsystmes that
use the acpi_device_id struct and that list keeps on growing. Therefore,
I have decided to split the series per every subsystem into:
- pre-clean-ups that convert the lists to use named initializers (this series)
- actual implementations that make some of the modules use the new driver_data_ptr

That way the task can be fragmented into manageable and independent
chunks of work and makes this effort easier to review.

Tested builds on x86-64 and a64 in Yocto using 7.3-rc1.

[1] https://lore.kernel.org/all/cover.1780048925.git.u.kleine-koenig@baylibre.com/ (local)

Signed-off-by: Pawel Zalewski <redacted>
---
Pawel Zalewski (4):
      dma: dw: use designated initializers for acpi_device_id
      dma: loongson:  use named initializers for acpi_device_id
      dma: qcom: use named initializers for acpi_device_id
      dma: xgene-dmac: use named initializers for acpi_device_id

 drivers/dma/dw/platform.c                    | 12 ++++++------
 drivers/dma/loongson/loongson2-apb-cmc-dma.c |  4 ++--
 drivers/dma/qcom/hidma.c                     |  8 ++++----
 drivers/dma/xgene-dma.c                      |  4 ++--
 4 files changed, 14 insertions(+), 14 deletions(-)
---
base-commit: bc35965f6940a9bf834d54187b6088b8eb09206d
change-id: 20260904-acpi-dma-ee1add4bae4e

Best regards,
--  
Pawel Zalewski [off-list ref]
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help