kernel/drivers/w1, branch linux-6.16.y

Merge tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-06-06T18:50:47Z

Pull char / misc / iio driver updates from Greg KH: "Here is the big char/misc/iio and other small driver subsystem pull request for 6.16-rc1. Overall, a lot of individual changes, but nothing major, just the normal constant forward progress of new device support and cleanups to existing subsystems. Highlights in here are: - Large IIO driver updates and additions and device tree changes - Android binder bugfixes and logfile fixes - mhi driver updates - comedi driver updates - counter driver updates and additions - coresight driver updates and additions - echo driver removal as there are no in-kernel users of it - nvmem driver updates - spmi driver updates - new amd-sbi driver "subsystem" and drivers added - rust miscdriver binding documentation fix - other small driver fixes and updates (uio, w1, acrn, hpet, xillybus, cardreader drivers, fastrpc and others) All of these have been in linux-next for quite a while with no reported problems" * tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (390 commits) binder: fix yet another UAF in binder_devices counter: microchip-tcb-capture: Add watch validation support dt-bindings: iio: adc: Add ROHM BD79100G iio: adc: add support for Nuvoton NCT7201 dt-bindings: iio: adc: add NCT7201 ADCs iio: chemical: Add driver for SEN0322 dt-bindings: trivial-devices: Document SEN0322 iio: adc: ad7768-1: reorganize driver headers iio: bmp280: zero-init buffer iio: ssp_sensors: optimalize -> optimize HID: sensor-hub: Fix typo and improve documentation iio: admv1013: replace redundant ternary operator with just len iio: chemical: mhz19b: Fix error code in probe() iio: adc: at91-sama5d2: use IIO_DECLARE_BUFFER_WITH_TS iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS iio: adc: ad7380: use IIO_DECLARE_DMA_BUFFER_WITH_TS iio: adc: ad4695: rename AD4695_MAX_VIN_CHANNELS iio: adc: ad4695: use IIO_DECLARE_DMA_BUFFER_WITH_TS iio: introduce IIO_DECLARE_BUFFER_WITH_TS macros iio: make IIO_DMA_MINALIGN minimum of 8 bytes ...

w1: Avoid -Wflex-array-member-not-at-end warnings

2025-05-21T12:14:35Z

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. Use the `DEFINE_RAW_FLEX()` helper for on-stack definitions of a flexible structure where the size of the flexible-array member is known at compile-time, and refactor the rest of the code, accordingly. So, with these changes, fix the following warnings: drivers/w1/w1_netlink.c:198:31: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] drivers/w1/w1_netlink.c:219:31: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Reviewed-by: Kees Cook Signed-off-by: "Gustavo A. R. Silva" Link: https://lore.kernel.org/r/Z_RflBe5iDGTMFjV@kspp Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250513105326.27385-2-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman

w1: ds2406: use crc16() instead of crc16_byte() loop

2025-05-14T03:37:16Z

Instead of looping through each byte and calling crc16_byte(), instead just call crc16() on the whole buffer. No functional change. Acked-by: Krzysztof Kozlowski Acked-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20250513022115.39109-2-ebiggers@kernel.org Signed-off-by: Eric Biggers

w1: w1_therm: w1: Use HWMON_CHANNEL_INFO macro to simplify code

2025-02-03T11:54:18Z

Use HWMON_CHANNEL_INFO macro to simplify code. Signed-off-by: Huisong Li Link: https://lore.kernel.org/r/20250124022635.16647-9-lihuisong@huawei.com Signed-off-by: Krzysztof Kozlowski

w1: fix NULL pointer dereference in probe

2025-02-03T11:52:49Z

The w1_uart_probe() function calls w1_uart_serdev_open() (which includes devm_serdev_device_open()) before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384ec1 ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via w1_uart_serdev_open(). Fixes: a3c08804364e ("w1: add UART w1 bus driver") Signed-off-by: Chenyuan Yang Acked-by: Christoph Winklhofer Link: https://lore.kernel.org/r/20250111181803.2283611-1-chenyuan0y@gmail.com Signed-off-by: Krzysztof Kozlowski

Merge tag 'w1-drv-6.14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux-w1 into char-misc-next

2025-01-09T09:54:19Z

Krzysztof writes: 1-Wire bus drivers for v6.14 1. ds2482: Add support for handling the VCC regulator supply and three more minor improvements/cleanups. 2. Constify 'struct bin_attribute' in all drivers. 3. W1 core: use sysfs_emit() instead of sprintf(), as preferred coding style. * tag 'w1-drv-6.14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux-w1: w1: core: use sysfs_emit() instead of sprintf() w1: ds28e04: Constify 'struct bin_attribute' w1: ds2805: Constify 'struct bin_attribute' w1: ds2781: Constify 'struct bin_attribute' w1: ds2780: Constify 'struct bin_attribute' w1: ds2438: Constify 'struct bin_attribute' w1: ds2433: Constify 'struct bin_attribute' w1: ds2431: Constify 'struct bin_attribute' w1: ds2430: Constify 'struct bin_attribute' w1: ds2413: Constify 'struct bin_attribute' w1: ds2408: Constify 'struct bin_attribute' w1: ds2406: Constify 'struct bin_attribute' w1: Constify 'struct bin_attribute' w1: ds2482: Fix datasheet URL w1: ds2482: Add regulator support w1: ds2482: switch to devm_kzalloc() from kzalloc() dt-bindings: w1: ds2482: Add vcc-supply property

w1: core: use sysfs_emit() instead of sprintf()

2024-12-22T14:42:15Z

Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: zhangheng Link: https://lore.kernel.org/r/20241220102337.295864-1-zhangheng@kylinos.cn Signed-off-by: Krzysztof Kozlowski

w1: ds28e04: Constify 'struct bin_attribute'

2024-12-14T10:06:34Z

The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20241211-sysfs-const-bin_attr-w1-v1-12-c4befd2aa7cc@weissschuh.net Signed-off-by: Krzysztof Kozlowski

w1: ds2805: Constify 'struct bin_attribute'

2024-12-14T10:06:33Z

The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20241211-sysfs-const-bin_attr-w1-v1-11-c4befd2aa7cc@weissschuh.net Signed-off-by: Krzysztof Kozlowski

w1: ds2781: Constify 'struct bin_attribute'

2024-12-14T10:06:33Z

The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20241211-sysfs-const-bin_attr-w1-v1-10-c4befd2aa7cc@weissschuh.net Signed-off-by: Krzysztof Kozlowski