From e24328974a88aa8541e94e8bb8dfa2ade1b3c45d Mon Sep 17 00:00:00 2001 From: Donggeun Yoo Date: Wed, 2 Sep 2026 00:21:26 +0900 Subject: iio: proximity: vl53l0x-i2c: claim direct mode for raw reads vl53l0x_read_raw() starts a single-shot ranging measurement and reads back the result. Once the triggered buffer is enabled the sensor runs in continuous mode and its data-ready interrupt is routed to the trigger, so a concurrent in_distance_raw read disturbs the streaming setup and never gets its completion, returning -ETIMEDOUT. The original submission claimed direct mode here, but it was dropped during review because the driver had no buffer support at the time [1]. Continuous (buffered) mode was later added without restoring the claim [2], reintroducing the conflict. Reject direct reads while buffered capture is active by claiming direct mode around the measurement, as the vl53l1x sibling already does. Fixes: 762186c6e7b1 ("iio: proximity: vl53l0x-i2c: Added continuous mode support") Link: https://lore.kernel.org/linux-iio/20180911160300.GA9212@himanshu-Vostro-3559/ [1] Link: https://lore.kernel.org/linux-iio/20240909101508.263085-3-abhashkumarjha123@gmail.com/ [2] Signed-off-by: Donggeun Yoo Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- scripts/Makefile.randstruct | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 scripts/Makefile.randstruct (limited to 'scripts/Makefile.randstruct') diff --git a/scripts/Makefile.randstruct b/scripts/Makefile.randstruct new file mode 100644 index 000000000..24e283e89 --- /dev/null +++ b/scripts/Makefile.randstruct @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0 + +randstruct-cflags-y += -DRANDSTRUCT + +ifdef CONFIG_GCC_PLUGIN_RANDSTRUCT +randstruct-cflags-y \ + += -fplugin=$(objtree)/scripts/gcc-plugins/randomize_layout_plugin.so +randstruct-cflags-$(CONFIG_RANDSTRUCT_PERFORMANCE) \ + += -fplugin-arg-randomize_layout_plugin-performance-mode +else +randstruct-cflags-y \ + += -frandomize-layout-seed-file=$(objtree)/scripts/basic/randstruct.seed +endif + +export RANDSTRUCT_CFLAGS := $(randstruct-cflags-y) + +KBUILD_CFLAGS += $(RANDSTRUCT_CFLAGS) -- cgit v1.3.1