From f6f0c4362f070cab4a0cec432e82428d702ce0a6 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 8 Feb 2021 09:57:21 +0000 Subject: arm64: Extract early FDT mapping from kaslr_early_init() As we want to parse more options very early in the kernel lifetime, let's always map the FDT early. This is achieved by moving that code out of kaslr_early_init(). No functional change expected. Signed-off-by: Marc Zyngier Acked-by: Catalin Marinas Acked-by: David Brazdil Link: https://lore.kernel.org/r/20210208095732.3267263-13-maz@kernel.org [will: Ensue KASAN is enabled before running C code] Signed-off-by: Will Deacon --- arch/arm64/kernel/kaslr.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'arch/arm64/kernel/kaslr.c') diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c index 1c74c45b9494..5fc86e7d01a1 100644 --- a/arch/arm64/kernel/kaslr.c +++ b/arch/arm64/kernel/kaslr.c @@ -19,6 +19,7 @@ #include #include #include +#include enum kaslr_status { KASLR_ENABLED, @@ -92,12 +93,11 @@ out: * containing function pointers) to be reinitialized, and zero-initialized * .bss variables will be reset to 0. */ -u64 __init kaslr_early_init(u64 dt_phys) +u64 __init kaslr_early_init(void) { void *fdt; u64 seed, offset, mask, module_range; unsigned long raw; - int size; /* * Set a reasonable default for module_alloc_base in case @@ -111,8 +111,7 @@ u64 __init kaslr_early_init(u64 dt_phys) * and proceed with KASLR disabled. We will make another * attempt at mapping the FDT in setup_machine() */ - early_fixmap_init(); - fdt = fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL); + fdt = get_early_fdt_ptr(); if (!fdt) { kaslr_status = KASLR_DISABLED_FDT_REMAP; return 0; -- cgit v1.2.3