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Message-Id: <20241217162859.1167889-1-zhouding@cmss.chinamobile.com>
Date: Wed, 18 Dec 2024 00:28:59 +0800
From: Zhou Ding <zhouding@...s.chinamobile.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	x86@...nel.org,
	"H . Peter Anvin" <hpa@...or.com>,
	linux-kernel@...r.kernel.org,
	Zhou Ding <zhouding@...s.chinamobile.com>
Subject: [PATCH] x86, boot: Fix missing `has_cpuflag` prototype

We get 1 warning when building kernel withW=1:
arch/x86/boot/compressed/cpuflags.c:4:6: warning: no previous prototype for ‘has_cpuflag’ [-Werror=missing-prototypes]
    4 | bool has_cpuflag(int flag)
      |      ^~~~~~~~~~~
Add a function declaration to cpuflags.h

Signed-off-by: Zhou Ding <zhouding@...s.chinamobile.com>
---
 arch/x86/boot/cpuflags.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/boot/cpuflags.h b/arch/x86/boot/cpuflags.h
index 475b8fde90f7..fdcc2aa4c3c4 100644
--- a/arch/x86/boot/cpuflags.h
+++ b/arch/x86/boot/cpuflags.h
@@ -18,5 +18,6 @@ extern u32 cpu_vendor[3];
 int has_eflag(unsigned long mask);
 void get_cpuflags(void);
 void cpuid_count(u32 id, u32 count, u32 *a, u32 *b, u32 *c, u32 *d);
+bool has_cpuflag(int flag);
 
 #endif
-- 
2.33.0




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