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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /drivers/w1/Kconfig | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
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 <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/w1/Kconfig')
| -rw-r--r-- | drivers/w1/Kconfig | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/w1/Kconfig b/drivers/w1/Kconfig new file mode 100644 index 000000000..0d6f46702 --- /dev/null +++ b/drivers/w1/Kconfig @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0-only +menuconfig W1 + tristate "Dallas's 1-wire support" + depends on HAS_IOMEM + help + Dallas' 1-wire bus is useful to connect slow 1-pin devices + such as iButtons and thermal sensors. + + If you want W1 support, you should say Y here. + + This W1 support can also be built as a module. If so, the module + will be called wire. + +if W1 + +config W1_CON + depends on CONNECTOR + bool "Userspace communication over connector" + default y + help + This allows to communicate with userspace using connector. For more + information see <file:Documentation/driver-api/connector.rst>. + There are three types of messages between w1 core and userspace: + 1. Events. They are generated each time new master or slave device found + either due to automatic or requested search. + 2. Userspace commands. Includes read/write and search/alarm search commands. + 3. Replies to userspace commands. + +source "drivers/w1/masters/Kconfig" +source "drivers/w1/slaves/Kconfig" + +endif # W1 |