[PATCH] arm64/mm: Drop unused restore_ttbr1
Anshuman Khandual
anshuman.khandual at arm.com
Thu Nov 17 04:31:44 PST 2022
restore_ttbr1 procedure is not used anywhere, hence just drop it.
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Will Deacon <will at kernel.org>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
---
This applies on v6.1-rc5
arch/arm64/include/asm/assembler.h | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index e5957a53be39..f13bc52ab347 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -619,17 +619,6 @@ alternative_endif
#endif
.endm
-/*
- * Perform the reverse of offset_ttbr1.
- * bic is used as it can cover the immediate value and, in future, won't need
- * to be nop'ed out when dealing with 52-bit kernel VAs.
- */
- .macro restore_ttbr1, ttbr
-#ifdef CONFIG_ARM64_VA_BITS_52
- bic \ttbr, \ttbr, #TTBR1_BADDR_4852_OFFSET
-#endif
- .endm
-
/*
* Arrange a physical address in a TTBR register, taking care of 52-bit
* addresses.
--
2.25.1
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