linux-kernel - [PATCH] kexec: include asm/early

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Message-Id: <20250423162924.2213664-1-arnd@kernel.org>
Date: Wed, 23 Apr 2025 18:29:18 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Alexander Graf <graf@...zon.com>,
	Mike Rapoport <rppt@...nel.org>,
	Changyuan Lyu <changyuanl@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Baoquan He <bhe@...hat.com>
Cc: Arnd Bergmann <arnd@...db.de>,
	kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] kexec: include asm/early_ioremap.h

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

The early_memremap() function is decleared in a header that is only indirectly
included here:

kernel/kexec_handover.c:1116:8: error: call to undeclared function 'early_memremap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
 1116 |         fdt = early_memremap(fdt_phys, fdt_len);
      |               ^

Fixes: 4bfe738ce89a ("kexec: add KHO support to kexec file loads")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 kernel/kexec_handover.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/kexec_handover.c b/kernel/kexec_handover.c
index 4bbc6f5ef723..3e8a0118e182 100644
--- a/kernel/kexec_handover.c
+++ b/kernel/kexec_handover.c
@@ -18,6 +18,9 @@
 #include <linux/memblock.h>
 #include <linux/notifier.h>
 #include <linux/page-isolation.h>
+
+#include <asm/early_ioremap.h>
+
 /*
  * KHO is tightly coupled with mm init and needs access to some of mm
  * internal APIs.
-- 
2.39.5