linux-kernel - [PATCH] arm64: pi: add early_map

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Date:   Wed, 25 Oct 2023 09:19:31 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Ard Biesheuvel <ardb@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: pi: add early_map_kernel prototype

From: Arnd Bergmann <arnd@...db.de>

The newly added function only has a caller from assembler code, so it
works without an extern prototype, but we get a warning if it's missing:

arch/arm64/kernel/pi/map_kernel.c:224:24: error: no previous prototype for 'early_map_kernel' [-Werror=missing-prototypes]

Fixes: 478ea5689054 ("arm64: head: Move early kernel mapping routines into C code")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm64/kernel/pi/pi.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/pi/pi.h b/arch/arm64/kernel/pi/pi.h
index 93d7457dd10d..c07eea032b7e 100644
--- a/arch/arm64/kernel/pi/pi.h
+++ b/arch/arm64/kernel/pi/pi.h
@@ -28,3 +28,5 @@ void map_range(u64 *pgd, u64 start, u64 end, u64 pa, pgprot_t prot,
 	       int level, pte_t *tbl, bool may_use_cont, u64 va_offset);
 
 asmlinkage u64 create_init_idmap(pgd_t *pgd, pteval_t clrmask);
+
+asmlinkage void early_map_kernel(u64 boot_status, void *fdt);
-- 
2.39.2