starfive-tech/linux.git/drivers/mux, branch visionfive

Merge tag 'hardening-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2025-07-29T00:16:12+00:00

Pull hardening updates from Kees Cook: - Introduce and start using TRAILING_OVERLAP() helper for fixing embedded flex array instances (Gustavo A. R. Silva) - mux: Convert mux_control_ops to a flex array member in mux_chip (Thorsten Blum) - string: Group str_has_prefix() and strstarts() (Andy Shevchenko) - Remove KCOV instrumentation from __init and __head (Ritesh Harjani, Kees Cook) - Refactor and rename stackleak feature to support Clang - Add KUnit test for seq_buf API - Fix KUnit fortify test under LTO * tag 'hardening-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (22 commits) sched/task_stack: Add missing const qualifier to end_of_stack() kstack_erase: Support Clang stack depth tracking kstack_erase: Add -mgeneral-regs-only to silence Clang warnings init.h: Disable sanitizer coverage for __init and __head kstack_erase: Disable kstack_erase for all of arm compressed boot code x86: Handle KCOV __init vs inline mismatches arm64: Handle KCOV __init vs inline mismatches s390: Handle KCOV __init vs inline mismatches arm: Handle KCOV __init vs inline mismatches mips: Handle KCOV __init vs inline mismatch powerpc/mm/book3s64: Move kfence and debug_pagealloc related calls to __init section configs/hardening: Enable CONFIG_INIT_ON_FREE_DEFAULT_ON configs/hardening: Enable CONFIG_KSTACK_ERASE stackleak: Split KSTACK_ERASE_CFLAGS from GCC_PLUGINS_CFLAGS stackleak: Rename stackleak_track_stack to __sanitizer_cov_stack_depth stackleak: Rename STACKLEAK to KSTACK_ERASE seq_buf: Introduce KUnit tests string: Group str_has_prefix() and strstarts() kunit/fortify: Add back "volatile" for sizeof() constants acpi: nfit: intel: avoid multiple -Wflex-array-member-not-at-end warnings ...

mux: mmio: Fix missing CONFIG_REGMAP_MMIO

2025-07-04T14:27:08+00:00

MMIO mux uses now regmap_init_mmio(), so one way or another CONFIG_REGMAP_MMIO should be enabled, because there are no stubs for !REGMAP_MMIO case: ERROR: modpost: "__regmap_init_mmio_clk" [drivers/mux/mux-mmio.ko] undefined! Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202505150312.dYbBqUhG-lkp@intel.com/ Fixes: 61de83fd8256 ("mux: mmio: Do not use syscon helper to build regmap") Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/20250521152354.92720-2-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250616093841.31985-2-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman

mux: Convert mux_control_ops to a flex array member in mux_chip

2025-06-18T21:20:32+00:00

Convert mux_control_ops to a flexible array member at the end of the mux_chip struct and add the __counted_by() compiler attribute to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Use struct_size() to calculate the number of bytes to allocate for a new mux chip and to remove the following Coccinelle/coccicheck warning: WARNING: Use struct_size Use size_add() to safely add any extra bytes. No functional changes intended. Link: https://github.com/KSPP/linux/issues/83 Signed-off-by: Thorsten Blum Link: https://lore.kernel.org/r/20250610104106.1948-2-thorsten.blum@linux.dev Signed-off-by: Kees Cook

mux: adgs1408: fix Wvoid-pointer-to-enum-cast warning

2025-05-08T15:12:08+00:00

'chip_id' is an enum, thus cast of pointer on 64-bit compile test with W=1 causes: adgs1408.c:63:12: error: cast to smaller integer type 'enum adgs1408_chip_id' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20250501181819.164207-2-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski

mux: gpio: add optional regulator support

2025-05-08T12:55:36+00:00

Some of the external muxes needs powering up using a regulator. This is the case with Lenovo T14s laptop which has a external audio mux to handle US/EURO headsets. Add support to the driver to handle this optional regulator. Signed-off-by: Srinivas Kandagatla Tested-by: Christopher Obbard Reviewed-by: Johan Hovold Tested-by: Johan Hovold Link: https://lore.kernel.org/r/20250327100633.11530-3-srinivas.kandagatla@linaro.org [krzk: Adjust dev_err message per Johan's review] Signed-off-by: Krzysztof Kozlowski

mux: mmio: Do not use syscon helper to build regmap

2025-05-01T17:47:35+00:00

The syscon helper device_node_to_regmap() is used to fetch a regmap registered to a device node. It also currently creates this regmap if the node did not already have a regmap associated with it. This should only be used on "syscon" nodes. This driver is not such a device and instead uses device_node_to_regmap() on its own node as a hacky way to create a regmap for itself. This will not work going forward and so we should create our regmap the normal way by defining our regmap_config, fetching our memory resource, then using the normal regmap_init_mmio() function. Signed-off-by: Andrew Davis Tested-by: Nishanth Menon Link: https://lore.kernel.org/r/20250123182059.597491-1-afd@ti.com Signed-off-by: Krzysztof Kozlowski

mux: adg792a: remove incorrect of_match_ptr annotation

2025-05-01T17:43:43+00:00

Building with W=1 shows a warning about adg792a_of_match being unused when CONFIG_OF is disabled: drivers/mux/adg792a.c:134:34: error: unused variable 'adg792a_of_match' [-Werror,-Wunused-const-variable] Acked-by: Peter Rosin Signed-off-by: Arnd Bergmann Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20250409122314.2848028-4-arnd@kernel.org Signed-off-by: Krzysztof Kozlowski

mux: adgs1408: simplify with spi_get_device_match_data()

2025-05-01T17:41:23+00:00

Use spi_get_device_match_data() helper to simplify a bit the driver. Link: https://lore.kernel.org/r/20240606142443.130517-1-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski

mux: mmio: Add missing word in error message

2025-05-01T17:40:35+00:00

s/failed allocate/failed to allocate/ Signed-off-by: Thorsten Blum Link: https://lore.kernel.org/r/20250316135857.1584-2-thorsten.blum@linux.dev Signed-off-by: Krzysztof Kozlowski

mux: gpio: use gpiod_multi_set_value_cansleep

2025-02-17T13:27:34+00:00

Reduce verbosity by using gpiod_multi_set_value_cansleep() instead of gpiod_set_array_value_cansleep(). Acked-by: Peter Rosin Reviewed-by: Linus Walleij Signed-off-by: David Lechner Link: https://lore.kernel.org/r/20250210-gpio-set-array-helper-v3-12-d6a673674da8@baylibre.com Signed-off-by: Bartosz Golaszewski