arm64: Get rid of arm64_ssbd_state

Out with the old ghost, in with the new...

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 3b48aa1..fba6700 100644 (file)
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -698,20 +698,6 @@ static inline bool system_supports_tlb_range(void)
                cpus_have_const_cap(ARM64_HAS_TLB_RANGE);
 }
 
-#define ARM64_SSBD_UNKNOWN             -1
-#define ARM64_SSBD_FORCE_DISABLE       0
-#define ARM64_SSBD_KERNEL              1
-#define ARM64_SSBD_FORCE_ENABLE                2
-#define ARM64_SSBD_MITIGATED           3
-
-static inline int arm64_get_ssbd_state(void)
-{
-       extern int ssbd_state;
-       return ssbd_state;
-}
-
-void arm64_set_ssbd_mitigation(bool state);
-
 extern int do_emulate_mrs(struct pt_regs *regs, u32 sys_reg, u32 rt);
 
 static inline u32 id_aa64mmfr0_parange_to_phys_shift(int parange)

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 7e9caef..6c83035 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -106,8 +106,6 @@ cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *cap)
                sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCT, 0);
 }
 
-int ssbd_state __read_mostly = ARM64_SSBD_UNKNOWN;
-
 #ifdef CONFIG_ARM64_ERRATUM_1463225
 DEFINE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);