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/devfreq/event/Kconfig | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 drivers/devfreq/event/Kconfig (limited to 'drivers/devfreq/event/Kconfig') diff --git a/drivers/devfreq/event/Kconfig b/drivers/devfreq/event/Kconfig new file mode 100644 index 000000000..878825372 --- /dev/null +++ b/drivers/devfreq/event/Kconfig @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: GPL-2.0-only +menuconfig PM_DEVFREQ_EVENT + bool "DEVFREQ-Event device Support" + help + The devfreq-event device provide the raw data and events which + indicate the current state of devfreq-event device. The provided + data from devfreq-event device is used to monitor the state of + device and determine the suitable size of resource to reduce the + wasted resource. + + The devfreq-event device can support the various type of events + (e.g., raw data, utilization, latency, bandwidth). The events + may be used by devfreq governor and other subsystem. + +if PM_DEVFREQ_EVENT + +config DEVFREQ_EVENT_EXYNOS_NOCP + tristate "Exynos NoC (Network On Chip) Probe DEVFREQ event Driver" + depends on ARCH_EXYNOS || COMPILE_TEST + select PM_OPP + select REGMAP_MMIO + help + This add the devfreq-event driver for Exynos SoC. It provides NoC + (Network on Chip) Probe counters to measure the bandwidth of AXI bus. + +config DEVFREQ_EVENT_EXYNOS_PPMU + tristate "Exynos PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver" + depends on ARCH_EXYNOS || COMPILE_TEST + select PM_OPP + help + This add the devfreq-event driver for Exynos SoC. It provides PPMU + (Platform Performance Monitoring Unit) counters to estimate the + utilization of each module. + +config DEVFREQ_EVENT_ROCKCHIP_DFI + tristate "ROCKCHIP DFI DEVFREQ event Driver" + depends on ARCH_ROCKCHIP || COMPILE_TEST + help + This add the devfreq-event driver for Rockchip SoC. It provides DFI + (DDR Monitor Module) driver to count ddr load. + +endif # PM_DEVFREQ_EVENT -- cgit v1.3.1