diff options
| author | Will Deacon <will@kernel.org> | 2020-09-16 00:11:13 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-09-29 18:08:15 +0300 |
| commit | 6e5f0927846adf39aebee450f13871e3cb4ab012 (patch) | |
| tree | 261a6871c7b1a509831ad48b9ec2ea0fe9204675 /arch/arm64/include/asm/cpufeature.h | |
| parent | 39533e12063be7f55e3d6ae21ffe067799d542a4 (diff) | |
| download | linux-6e5f0927846adf39aebee450f13871e3cb4ab012.tar.xz | |
arm64: Remove Spectre-related CONFIG_* options
The spectre mitigations are too configurable for their own good, leading
to confusing logic trying to figure out when we should mitigate and when
we shouldn't. Although the plethora of command-line options need to stick
around for backwards compatibility, the default-on CONFIG options that
depend on EXPERT can be dropped, as the mitigations only do anything if
the system is vulnerable, a mitigation is available and the command-line
hasn't disabled it.
Remove CONFIG_HARDEN_BRANCH_PREDICTOR and CONFIG_ARM64_SSBD in favour of
enabling this code unconditionally.
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/cpufeature.h')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 89b4f0142c28..851d144527ed 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -712,12 +712,8 @@ int get_spectre_v2_workaround_state(void); static inline int arm64_get_ssbd_state(void) { -#ifdef CONFIG_ARM64_SSBD extern int ssbd_state; return ssbd_state; -#else - return ARM64_SSBD_UNKNOWN; -#endif } void arm64_set_ssbd_mitigation(bool state); |