linux-kernel - [PATCH] x86/vdso: provide prototype of __vdso

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Message-Id: <20230531091027.70434-1-dmantipov@yandex.ru>
Date:   Wed, 31 May 2023 12:10:27 +0300
From:   Dmitry Antipov <dmantipov@...dex.ru>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org, Dmitry Antipov <dmantipov@...dex.ru>,
        Dmitriy Antipov <Dmitriy.Antipov@...tline.com>
Subject: [PATCH] x86/vdso: provide prototype of __vdso_getcpu()

Include asm/vdso/processor.h to fix the following 'make LLVM=1 W=1'
warning:

arch/x86/entry/vdso/vgetcpu.c:13:1: error: no previous prototype for
function '__vdso_getcpu' [-Werror,-Wmissing-prototypes]
__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
^

Signed-off-by: Dmitriy Antipov <Dmitriy.Antipov@...tline.com>
---
 arch/x86/entry/vdso/vgetcpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/entry/vdso/vgetcpu.c b/arch/x86/entry/vdso/vgetcpu.c
index 0a9007c24056..66edca964a9a 100644
--- a/arch/x86/entry/vdso/vgetcpu.c
+++ b/arch/x86/entry/vdso/vgetcpu.c
@@ -8,6 +8,7 @@
 #include <linux/kernel.h>
 #include <linux/getcpu.h>
 #include <asm/segment.h>
+#include <asm/vdso/processor.h>
 
 notrace long
 __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
-- 
2.40.1