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/nvme/host/Kconfig | 136 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100644 drivers/nvme/host/Kconfig (limited to 'drivers/nvme/host/Kconfig') diff --git a/drivers/nvme/host/Kconfig b/drivers/nvme/host/Kconfig new file mode 100644 index 000000000..31974c7dd --- /dev/null +++ b/drivers/nvme/host/Kconfig @@ -0,0 +1,136 @@ +# SPDX-License-Identifier: GPL-2.0-only +config NVME_CORE + tristate + +config BLK_DEV_NVME + tristate "NVM Express block device" + depends on PCI && BLOCK + select NVME_CORE + help + The NVM Express driver is for solid state drives directly + connected to the PCI or PCI Express bus. If you know you + don't have one of these, it is safe to answer N. + + To compile this driver as a module, choose M here: the + module will be called nvme. + +config NVME_MULTIPATH + bool "NVMe multipath support" + depends on NVME_CORE + help + This option controls support for multipath access to NVMe + subsystems. If this option is enabled support for NVMe multipath + access is included in the kernel. If this option is disabled support + for NVMe multipath access is excluded from the kernel. When this + option is disabled each controller/namespace receives its + own /dev/nvmeXnY device entry and NVMe multipath access is + not supported. + + If unsure, say Y. + +config NVME_VERBOSE_ERRORS + bool "NVMe verbose error reporting" + depends on NVME_CORE + help + This option enables verbose reporting for NVMe errors. The + error translation table will grow the kernel image size by + about 4 KB. + +config NVME_HWMON + bool "NVMe hardware monitoring" + depends on (NVME_CORE=y && HWMON=y) || (NVME_CORE=m && HWMON) + help + This provides support for NVMe hardware monitoring. If enabled, + a hardware monitoring device will be created for each NVMe drive + in the system. + +config NVME_FABRICS + select NVME_CORE + select NVME_KEYRING if NVME_TCP_TLS + tristate + +config NVME_RDMA + tristate "NVM Express over Fabrics RDMA host driver" + depends on INFINIBAND && INFINIBAND_ADDR_TRANS && BLOCK + select NVME_FABRICS + select SG_POOL + help + This provides support for the NVMe over Fabrics protocol using + the RDMA (Infiniband, RoCE, iWarp) transport. This allows you + to use remote block devices exported using the NVMe protocol set. + + To configure a NVMe over Fabrics controller use the nvme-cli tool + from https://github.com/linux-nvme/nvme-cli. + + If unsure, say N. + +config NVME_FC + tristate "NVM Express over Fabrics FC host driver" + depends on BLOCK + depends on HAS_DMA + select NVME_FABRICS + select SG_POOL + help + This provides support for the NVMe over Fabrics protocol using + the FC transport. This allows you to use remote block devices + exported using the NVMe protocol set. + + To configure a NVMe over Fabrics controller use the nvme-cli tool + from https://github.com/linux-nvme/nvme-cli. + + If unsure, say N. + +config NVME_TCP + tristate "NVM Express over Fabrics TCP host driver" + depends on INET + depends on BLOCK + select CRC32 + select NET_CRC32C + select NVME_FABRICS + help + This provides support for the NVMe over Fabrics protocol using + the TCP transport. This allows you to use remote block devices + exported using the NVMe protocol set. + + To configure a NVMe over Fabrics controller use the nvme-cli tool + from https://github.com/linux-nvme/nvme-cli. + + If unsure, say N. + +config NVME_TCP_TLS + bool "NVMe over Fabrics TCP TLS encryption support" + depends on NVME_TCP + select NET_HANDSHAKE + select KEYS + select TLS + help + Enables TLS encryption for NVMe TCP using the netlink handshake API. + + The TLS handshake daemon is available at + https://github.com/oracle/ktls-utils. + + If unsure, say N. + +config NVME_HOST_AUTH + bool "NVMe over Fabrics In-Band Authentication in host side" + depends on NVME_CORE + select NVME_AUTH + select NVME_KEYRING + help + This provides support for NVMe over Fabrics In-Band Authentication in + host side. + + If unsure, say N. + +config NVME_APPLE + tristate "Apple ANS2 NVM Express host driver" + depends on OF && BLOCK + depends on APPLE_RTKIT && APPLE_SART + depends on ARCH_APPLE || COMPILE_TEST + select NVME_CORE + help + This provides support for the NVMe controller embedded in Apple SoCs + such as the M1. + + To compile this driver as a module, choose M here: the + module will be called nvme-apple. -- cgit v1.3.1