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/ntb/test/Kconfig | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 drivers/ntb/test/Kconfig (limited to 'drivers/ntb/test/Kconfig') diff --git a/drivers/ntb/test/Kconfig b/drivers/ntb/test/Kconfig new file mode 100644 index 000000000..516b991f3 --- /dev/null +++ b/drivers/ntb/test/Kconfig @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0-only +config NTB_PINGPONG + tristate "NTB Ping Pong Test Client" + help + This is a simple ping pong driver that exercises the scratchpads and + doorbells of the ntb hardware. This driver may be used to test that + your ntb hardware and drivers are functioning at a basic level. + + If unsure, say N. + +config NTB_TOOL + tristate "NTB Debugging Tool Test Client" + help + This is a simple debugging driver that enables the doorbell and + scratchpad registers to be read and written from the debugfs. This + enables more complicated debugging to be scripted from user space. + This driver may be used to test that your ntb hardware and drivers are + functioning at a basic level. + + If unsure, say N. + +config NTB_PERF + tristate "NTB RAW Perf Measuring Tool" + help + This is a tool to measure raw NTB performance by transferring data + to and from the window without additional software interaction. + + If unsure, say N. + +config NTB_MSI_TEST + tristate "NTB MSI Test Client" + depends on NTB_MSI + help + This tool demonstrates the use of the NTB MSI library to + send MSI interrupts between peers. + + If unsure, say N. -- cgit v1.3.1