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/mcb/Kconfig | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 drivers/mcb/Kconfig (limited to 'drivers/mcb/Kconfig') diff --git a/drivers/mcb/Kconfig b/drivers/mcb/Kconfig new file mode 100644 index 000000000..0a883486f --- /dev/null +++ b/drivers/mcb/Kconfig @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# MEN Chameleon Bus (MCB) support +# + +menuconfig MCB + tristate "MCB support" + default n + depends on HAS_IOMEM + help + + The MCB (MEN Chameleon Bus) is a Bus specific to MEN Mikroelektronik + FPGA based devices. It is used to identify MCB based IP-Cores within + an FPGA and provide the necessary framework for instantiating drivers + for these devices. + + If build as a module, the module is called mcb.ko + +if MCB +config MCB_PCI + tristate "PCI based MCB carrier" + default n + depends on PCI + help + + This is a MCB carrier on a PCI device. Both PCI attached on-board + FPGAs as well as CompactPCI attached MCB FPGAs are supported with + this driver. + + If build as a module, the module is called mcb-pci.ko + +config MCB_LPC + tristate "LPC (non PCI) based MCB carrier" + default n + help + + This is a MCB carrier on a LPC or non PCI device. + + If build as a module, the module is called mcb-lpc.ko + +endif # MCB -- cgit v1.3.1