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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/firmware/smccc/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/firmware/smccc/Kconfig')
| -rw-r--r-- | drivers/firmware/smccc/Kconfig | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/firmware/smccc/Kconfig b/drivers/firmware/smccc/Kconfig new file mode 100644 index 000000000..15e746617 --- /dev/null +++ b/drivers/firmware/smccc/Kconfig @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: GPL-2.0-only +config HAVE_ARM_SMCCC + bool + help + Include support for the Secure Monitor Call (SMC) and Hypervisor + Call (HVC) instructions on Armv7 and above architectures. + +config HAVE_ARM_SMCCC_DISCOVERY + bool + depends on ARM_PSCI_FW + default y + help + SMCCC v1.0 lacked discoverability and hence PSCI v1.0 was updated + to add SMCCC discovery mechanism though the PSCI firmware + implementation of PSCI_FEATURES(SMCCC_VERSION) which returns + success on firmware compliant to SMCCC v1.1 and above. + +config ARM_SMCCC_SOC_ID + bool "SoC bus device for the ARM SMCCC SOC_ID" + depends on HAVE_ARM_SMCCC_DISCOVERY + default y + select SOC_BUS + help + Include support for the SoC bus on the ARM SMCCC firmware based + platforms providing some sysfs information about the SoC variant. |