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Date: Mon, 13 Jun 2022 16:45:25 +0200
From: Ard Biesheuvel <ardb@...nel.org>
To: linux-arm-kernel@...ts.infradead.org
Cc: linux-hardening@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
Marc Zyngier <maz@...nel.org>, Will Deacon <will@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Kees Cook <keescook@...omium.org>,
Catalin Marinas <catalin.marinas@....com>,
Mark Brown <broonie@...nel.org>,
Anshuman Khandual <anshuman.khandual@....com>
Subject: [PATCH v4 01/26] arm64: head: move kimage_vaddr variable into C file
This variable definition does not need to be in head.S so move it out.
Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
---
arch/arm64/kernel/head.S | 7 -------
arch/arm64/mm/mmu.c | 3 +++
2 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 6a98f1a38c29..1cdecce552bb 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -469,13 +469,6 @@ SYM_FUNC_START_LOCAL(__primary_switched)
ASM_BUG()
SYM_FUNC_END(__primary_switched)
- .pushsection ".rodata", "a"
-SYM_DATA_START(kimage_vaddr)
- .quad _text
-SYM_DATA_END(kimage_vaddr)
-EXPORT_SYMBOL(kimage_vaddr)
- .popsection
-
/*
* end early head section, begin head code that is also used for
* hotplug and needs to have the same protections as the text region
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index c5563ff990da..7148928e3932 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -49,6 +49,9 @@ u64 idmap_ptrs_per_pgd = PTRS_PER_PGD;
u64 __section(".mmuoff.data.write") vabits_actual;
EXPORT_SYMBOL(vabits_actual);
+u64 kimage_vaddr __ro_after_init = (u64)&_text;
+EXPORT_SYMBOL(kimage_vaddr);
+
u64 kimage_voffset __ro_after_init;
EXPORT_SYMBOL(kimage_voffset);
--
2.30.2
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