linux-kernel - [PATCH] arm64/mm: Drop redundant extern declaration for rodata

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Message-Id: <20251015023609.427911-1-anshuman.khandual@arm.com>
Date: Wed, 15 Oct 2025 03:36:09 +0100
From: Anshuman Khandual <anshuman.khandual@....com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] arm64/mm: Drop redundant extern declaration for rodata_full

Drop the redundant extern declaration 'rodata_full' which can be included
via the header <asm/setup.h> after moving exiting declaration outside the
function arch_parse_debug_rodata(). While here also drop 'rodata_enabled'
which is anyways available via the generic header <linux/init.h>.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
---
 arch/arm64/include/asm/mmu_context.h | 2 --
 arch/arm64/include/asm/setup.h       | 4 +---
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index 0375ca3162ff..e4b3563e1d96 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -26,8 +26,6 @@
 #include <asm/sysreg.h>
 #include <asm/tlbflush.h>
 
-extern bool rodata_full;
-
 static inline void contextidr_thread_switch(struct task_struct *next)
 {
 	if (!IS_ENABLED(CONFIG_PID_IN_CONTEXTIDR))
diff --git a/arch/arm64/include/asm/setup.h b/arch/arm64/include/asm/setup.h
index 3d96dde4d214..902f1aab520f 100644
--- a/arch/arm64/include/asm/setup.h
+++ b/arch/arm64/include/asm/setup.h
@@ -12,12 +12,10 @@
  */
 extern phys_addr_t __fdt_pointer __initdata;
 extern u64 __cacheline_aligned boot_args[4];
+extern bool rodata_full;
 
 static inline bool arch_parse_debug_rodata(char *arg)
 {
-	extern bool rodata_enabled;
-	extern bool rodata_full;
-
 	if (!arg)
 		return false;
 
-- 
2.30.2