From 6668ed271eaefaa63e686bdfbedaeb7b8e492722 Mon Sep 17 00:00:00 2001 From: Kumar Kartikeya Dwivedi Date: Fri, 4 Sep 2026 10:43:19 +0200 Subject: selftests/bpf: Reject graph kptr use after RCU unlock Add a sleepable verifier test that loads a graph-node local kptr in an explicit RCU read-side critical section, then passes its node to bpf_rbtree_remove() after the section ends. Before the verifier fix, the stale NON_OWN_REF flag makes the node look like a live borrowed reference and the program is accepted. After the fix, the pointer is demoted without NON_OWN_REF and the graph kfunc argument is rejected. Also exercise a graph kptr loaded while a spin lock provides implicit RCU protection. The pointer must be invalidated when the lock is released, which guards the required ordering between non-owning-reference invalidation and RCU demotion. Update the existing fault-protected load test state description. The post-unlock pointer no longer carries NON_OWN_REF, but remains readable because the load is rewritten to use BPF_PROBE_MEM. Signed-off-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/r/20260904084325.52250-7-memxor@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/clk/stm32/Kconfig | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/clk/stm32/Kconfig (limited to 'drivers/clk/stm32/Kconfig') diff --git a/drivers/clk/stm32/Kconfig b/drivers/clk/stm32/Kconfig new file mode 100644 index 000000000..5dbd75cde --- /dev/null +++ b/drivers/clk/stm32/Kconfig @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: GPL-2.0-only +# common clock support for STMicroelectronics SoC family. + +menuconfig COMMON_CLK_STM32MP + bool "Clock support for common STM32MP clocks" + depends on ARCH_STM32 || COMPILE_TEST + default ARCH_STM32 + select RESET_CONTROLLER + help + Support for STM32MP SoC family clocks. + +if COMMON_CLK_STM32MP + +config COMMON_CLK_STM32MP135 + bool "Clock driver for stm32mp13x clocks" + depends on ARM || COMPILE_TEST + default ARCH_STM32 + help + Support for stm32mp13x SoC family clocks. + +config COMMON_CLK_STM32MP157 + bool "Clock driver for stm32mp15x clocks" + depends on ARM || COMPILE_TEST + default ARCH_STM32 + help + Support for stm32mp15x SoC family clocks. + +config COMMON_CLK_STM32MP215 + bool "Clock driver for stm32mp21x clocks" + depends on ARM || ARM64 || COMPILE_TEST + default y + help + Support for stm32mp21x SoC family clocks + +config COMMON_CLK_STM32MP257 + bool "Clock driver for stm32mp25x clocks" + depends on ARM64 || COMPILE_TEST + default ARCH_STM32 + help + Support for stm32mp25x SoC family clocks. + +endif + -- cgit v1.3.1