linux-kernel - [PATCH v3 24/60] arm64: kernel: Remove early fdt remap code

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Message-Id: <20230307140522.2311461-25-ardb@kernel.org>
Date:   Tue,  7 Mar 2023 15:04:46 +0100
From:   Ard Biesheuvel <ardb@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org,
        Ard Biesheuvel <ardb@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ryan Roberts <ryan.roberts@....com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Kees Cook <keescook@...omium.org>
Subject: [PATCH v3 24/60] arm64: kernel: Remove early fdt remap code

The early FDT remap code is no longer used so let's drop it.

Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
---
 arch/arm64/include/asm/setup.h |  3 ---
 arch/arm64/kernel/setup.c      | 15 ---------------
 2 files changed, 18 deletions(-)

diff --git a/arch/arm64/include/asm/setup.h b/arch/arm64/include/asm/setup.h
index f4af547ef54caa70..acc5e00bf3b0fafb 100644
--- a/arch/arm64/include/asm/setup.h
+++ b/arch/arm64/include/asm/setup.h
@@ -7,9 +7,6 @@
 
 #include <uapi/asm/setup.h>
 
-void *get_early_fdt_ptr(void);
-void early_fdt_map(u64 dt_phys);
-
 /*
  * These two variables are used in the head.S file.
  */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b8ec7b3ac9cbe8a8..bda21a9245943c57 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -166,21 +166,6 @@ static void __init smp_build_mpidr_hash(void)
 		pr_warn("Large number of MPIDR hash buckets detected\n");
 }
 
-static void *early_fdt_ptr __initdata;
-
-void __init *get_early_fdt_ptr(void)
-{
-	return early_fdt_ptr;
-}
-
-asmlinkage void __init early_fdt_map(u64 dt_phys)
-{
-	int fdt_size;
-
-	early_fixmap_init();
-	early_fdt_ptr = fixmap_remap_fdt(dt_phys, &fdt_size, PAGE_KERNEL);
-}
-
 static void __init setup_machine_fdt(phys_addr_t dt_phys)
 {
 	int size;
-- 
2.39.2