From 30b2675761b8a1a2b6ef56b535ef51b789bb7150 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@kernel.org>
Date: Wed, 10 Mar 2021 18:15:12 +0100
Subject: [PATCH] arm64: mm: remove unused __cpu_uses_extended_idmap[_level()]
These routines lost all existing users during the latest merge window so
we can remove them. This avoids the need to fix them in the context of
fixing a regression related to the ID map on 52-bit VA kernels.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210310171515.416643-3-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
---
arch/arm64/include/asm/mmu_context.h | 14 --------------
1 file changed, 14 deletions(-)
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index 0f467d550f27f..bd02e99b1a4c5 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -63,20 +63,6 @@ static inline void cpu_switch_mm(pgd_t *pgd, struct mm_struct *mm)
extern u64 idmap_t0sz;
extern u64 idmap_ptrs_per_pgd;
-static inline bool __cpu_uses_extended_idmap(void)
-{
- return unlikely(idmap_t0sz != TCR_T0SZ(vabits_actual));
-}
-
-/*
- * True if the extended ID map requires an extra level of translation table
- * to be configured.
- */
-static inline bool __cpu_uses_extended_idmap_level(void)
-{
- return ARM64_HW_PGTABLE_LEVELS(64 - idmap_t0sz) > CONFIG_PGTABLE_LEVELS;
-}
-
/*
* Ensure TCR.T0SZ is set to the provided value.
*/
--
2.30.2