linux-kernel - [PATCH] csky: Remove compile warning for CONFIG

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Message-Id: <20251019110214.3392011-1-guoren@kernel.org>
Date: Sun, 19 Oct 2025 07:02:14 -0400
From: guoren@...nel.org
To: guoren@...nel.org
Cc: linux-csky@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	arnd@...db.de,
	linux-arch@...r.kernel.org
Subject: [PATCH] csky: Remove compile warning for CONFIG_SMP

From: "Guo Ren (Alibaba DAMO Academy)" <guoren@...nel.org>

When CONFIG_SMP is enabled, there is a compile warning:

arch/csky/kernel/smp.c:242:6: warning: no previous prototype for
'csky_start_secondary' [-Wmissing-prototypes]
  242 | void csky_start_secondary(void)
      |      ^~~~~~~~~~~~~~~~~~~~

Add a similar prototype with csky_start in sections.h.

Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@...nel.org>
---
 arch/csky/include/asm/sections.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/csky/include/asm/sections.h b/arch/csky/include/asm/sections.h
index 83e82b7c0f6c..ee5cdf226a9b 100644
--- a/arch/csky/include/asm/sections.h
+++ b/arch/csky/include/asm/sections.h
@@ -8,5 +8,6 @@
 extern char _start[];
 
 asmlinkage void csky_start(unsigned int unused, void *dtb_start);
+asmlinkage void csky_start_secondary(void);
 
 #endif /* __ASM_SECTIONS_H */
-- 
2.40.1