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authorJames Morse <james.morse@arm.com>2018-01-08 15:38:17 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2018-01-14 18:49:50 +0000
commit83f8ee3a73f551aebb5b0bb029feaf6936615730 (patch)
treef3952fed4e433d4e0d55eef6e7dc2227d3658667 /arch/arm64
parent677a60bd2003ff5517a0b502365112531446a3e3 (diff)
downloadlinux-83f8ee3a73f551aebb5b0bb029feaf6936615730.tar.bz2
arm64: mmu: add the entry trampolines start/end section markers into sections.h
SDEI needs to calculate an offset in the trampoline page too. Move the extern char[] to sections.h. This patch just moves code around. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/include/asm/sections.h1
-rw-r--r--arch/arm64/mm/mmu.c2
2 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
index 941267caa39c..caab039d6305 100644
--- a/arch/arm64/include/asm/sections.h
+++ b/arch/arm64/include/asm/sections.h
@@ -28,5 +28,6 @@ extern char __initdata_begin[], __initdata_end[];
extern char __inittext_begin[], __inittext_end[];
extern char __irqentry_text_start[], __irqentry_text_end[];
extern char __mmuoff_data_start[], __mmuoff_data_end[];
+extern char __entry_tramp_text_start[], __entry_tramp_text_end[];
#endif /* __ASM_SECTIONS_H */
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 4071602031ed..62d7abb2f710 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -529,8 +529,6 @@ early_param("rodata", parse_rodata);
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
static int __init map_entry_trampoline(void)
{
- extern char __entry_tramp_text_start[];
-
pgprot_t prot = rodata_enabled ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC;
phys_addr_t pa_start = __pa_symbol(__entry_tramp_text_start);