diff options
| author | Mark Rutland <[email protected]> | 2022-09-12 17:22:05 +0100 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2022-09-16 17:15:03 +0100 |
| commit | 747ad8d557645b8c9adb83334a620426e4c9d60f (patch) | |
| tree | 6dac58c44dd76d7d53c0fc37ea868f10f09ccdbb | |
| parent | 34bbfdfb146be3ad485cbe526b2a1e9ce220649c (diff) | |
arm64: alternatives: proton-pack: prepare for cap changes
The spectre patching callbacks use cpus_have_final_cap(), and subsequent
patches will make it invalid to call cpus_have_final_cap() before
alternatives patching has completed.
In preparation for said change, this patch modifies the spectre patching
callbacks use cpus_have_cap(). This is not subject to patching, and will
dynamically check the cpu_hwcaps array, which is functionally equivalent
to the existing behaviour.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <[email protected]>
Reviewed-by: Joey Gouly <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: James Morse <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Will Deacon <[email protected]>
Reviewed-by: Ard Biesheuvel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
| -rw-r--r-- | arch/arm64/kernel/proton-pack.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c index 40be3a7c2c53..8010b2e573fa 100644 --- a/arch/arm64/kernel/proton-pack.c +++ b/arch/arm64/kernel/proton-pack.c @@ -586,7 +586,7 @@ void __init spectre_v4_patch_fw_mitigation_enable(struct alt_instr *alt, if (spectre_v4_mitigations_off()) return; - if (cpus_have_final_cap(ARM64_SSBS)) + if (cpus_have_cap(ARM64_SSBS)) return; if (spectre_v4_mitigations_dynamic()) |