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/pinctrl/sunxi/Kconfig | 144 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 drivers/pinctrl/sunxi/Kconfig (limited to 'drivers/pinctrl/sunxi/Kconfig') diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig new file mode 100644 index 000000000..dc62eba96 --- /dev/null +++ b/drivers/pinctrl/sunxi/Kconfig @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: GPL-2.0-only +if ARCH_SUNXI + +config PINCTRL_SUNXI + bool + select PINMUX + select GENERIC_PINCONF + select GPIOLIB + +config PINCTRL_SUNIV_F1C100S + def_bool MACH_SUNIV + select PINCTRL_SUNXI + +config PINCTRL_SUN4I_A10 + bool "Support for the Allwinner A10, A20 and R40 PIO" + default MACH_SUN4I || MACH_SUN7I || MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN5I + bool "Support for the Allwinner A10s, A13, R8 and NextThing GR8 PIO" + default MACH_SUN5I + select PINCTRL_SUNXI + +config PINCTRL_SUN6I_A31 + bool "Support for the Allwinner A31 PIO" + default MACH_SUN6I + select PINCTRL_SUNXI + +config PINCTRL_SUN6I_A31_R + bool "Support for the Allwinner A31 R-PIO" + default MACH_SUN6I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_A23 + bool "Support for the Allwinner A23 PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_A33 + bool "Support for the Allwinner A33 PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_A83T + bool "Support for the Allwinner A83T PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_A83T_R + bool "Support for the Allwinner A83T R-PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_A23_R + bool "Support for the Allwinner A23 and A33 R-PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_H3 + bool "Support for the Allwinner H3 PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_H3_R + bool "Support for the Allwinner H3 and H5 R-PIO" + default MACH_SUN8I || (ARM64 && ARCH_SUNXI) + select PINCTRL_SUNXI + +config PINCTRL_SUN8I_V3S + bool "Support for the Allwinner V3s PIO" + default MACH_SUN8I + select PINCTRL_SUNXI + +config PINCTRL_SUN9I_A80 + bool "Support for the Allwinner A80 PIO" + default MACH_SUN9I + select PINCTRL_SUNXI + +config PINCTRL_SUN9I_A80_R + bool "Support for the Allwinner A80 R-PIO" + default MACH_SUN9I + select PINCTRL_SUNXI + +config PINCTRL_SUN20I_D1 + bool "Support for the Allwinner D1 PIO" + default MACH_SUN8I || (RISCV && ARCH_SUNXI) + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_A64 + bool "Support for the Allwinner A64 PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_A64_R + bool "Support for the Allwinner A64 R-PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_A100 + bool "Support for the Allwinner A100 PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_A100_R + bool "Support for the Allwinner A100 R-PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_H5 + bool "Support for the Allwinner H5 PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_H6 + bool "Support for the Allwinner H6 PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_H6_R + bool "Support for the Allwinner H6 R-PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_H616 + bool "Support for the Allwinner H616 PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN50I_H616_R + bool "Support for the Allwinner H616 R-PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN55I_A523 + bool "Support for the Allwinner A523 PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +config PINCTRL_SUN55I_A523_R + bool "Support for the Allwinner A523 R-PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + +endif -- cgit v1.3.1