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Subject[PATCH] x86/xen: Fix a -Wmissing prototypes warning for xen_start_kernel()
Date
Fix:

arch/x86/xen/enlighten_pv.c:1212:34:
warning: no previous prototype for ‘xen_start_kernel’ [-Wmissing-prototypes]
asmlinkage __visible void __init xen_start_kernel(void)

Add a prototype for xen_start_kernel() in a separate xen-specific header.

Signed-off-by: Benjamin Thiel <b.thiel@posteo.de>
---
arch/x86/include/asm/xen/setup.h | 7 +++++++
arch/x86/xen/enlighten_pv.c | 1 +
2 files changed, 8 insertions(+)
create mode 100644 arch/x86/include/asm/xen/setup.h

diff --git a/arch/x86/include/asm/xen/setup.h b/arch/x86/include/asm/xen/setup.h
new file mode 100644
index 000000000000..b7bd97f4b837
--- /dev/null
+++ b/arch/x86/include/asm/xen/setup.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_XEN_SETUP_H
+#define _ASM_X86_XEN_SETUP_H
+
+asmlinkage __visible void __init xen_start_kernel(void);
+
+#endif /*_ASM_X86_XEN_SETUP_H */
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 35321f4d49f1..dc0850f09c70 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -55,6 +55,7 @@
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
#include <asm/xen/cpuid.h>
+#include <asm/xen/setup.h>
#include <asm/fixmap.h>
#include <asm/processor.h>
#include <asm/proto.h>
--
2.20.1
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