From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/hwspinlock/Kconfig | 56 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 drivers/hwspinlock/Kconfig (limited to 'drivers/hwspinlock/Kconfig') diff --git a/drivers/hwspinlock/Kconfig b/drivers/hwspinlock/Kconfig new file mode 100644 index 000000000..d84e00084 --- /dev/null +++ b/drivers/hwspinlock/Kconfig @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Generic HWSPINLOCK framework +# + +menuconfig HWSPINLOCK + bool "Hardware Spinlock drivers" + +if HWSPINLOCK + +config HWSPINLOCK_OMAP + tristate "OMAP Hardware Spinlock device" + depends on ARCH_OMAP4 || SOC_OMAP5 || SOC_DRA7XX || SOC_AM33XX || SOC_AM43XX || ARCH_K3 || COMPILE_TEST + help + Say y here to support the OMAP Hardware Spinlock device (firstly + introduced in OMAP4). + + If unsure, say N. + +config HWSPINLOCK_QCOM + tristate "Qualcomm Hardware Spinlock device" + depends on ARCH_QCOM || COMPILE_TEST + select MFD_SYSCON + help + Say y here to support the Qualcomm Hardware Mutex functionality, which + provides a synchronisation mechanism for the various processors on + the SoC. + + If unsure, say N. + +config HWSPINLOCK_SPRD + tristate "SPRD Hardware Spinlock device" + depends on ARCH_SPRD || COMPILE_TEST + help + Say y here to support the SPRD Hardware Spinlock device. + + If unsure, say N. + +config HWSPINLOCK_STM32 + tristate "STM32 Hardware Spinlock device" + depends on MACH_STM32MP157 || COMPILE_TEST + help + Say y here to support the STM32 Hardware Spinlock device. + + If unsure, say N. + +config HWSPINLOCK_SUN6I + tristate "SUN6I Hardware Spinlock device" + depends on ARCH_SUNXI || COMPILE_TEST + help + Say y here to support the SUN6I Hardware Spinlock device which can be + found in most of the sun6i compatible Allwinner SoCs. + + If unsure, say N. + +endif # HWSPINLOCK -- cgit v1.3.1