arm64: mm: kill mm_cpumask usage

mm_cpumask isn't actually used for anything on arm64, so remove all the
code trying to keep it up-to-date.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c
index 4b9ec4484e3f..f636a2639f03 100644
--- a/arch/arm64/mm/context.c
+++ b/arch/arm64/mm/context.c
@@ -132,7 +132,6 @@ set_asid:
 
 bump_gen:
 	asid |= generation;
-	cpumask_clear(mm_cpumask(mm));
 	return asid;
 }
 
@@ -169,7 +168,6 @@ void check_and_switch_context(struct mm_struct *mm, unsigned int cpu)
 	raw_spin_unlock_irqrestore(&cpu_asid_lock, flags);
 
 switch_mm_fastpath:
-	cpumask_set_cpu(cpu, mm_cpumask(mm));
 	cpu_switch_mm(mm->pgd, mm);
 }