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authorTiwei Bie <tiwei.btw@antgroup.com>2024-04-23 15:58:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-06-12 12:39:32 +0300
commitf51fc9dff2eebdc67ef1c5e3f2020a9b8649866c (patch)
treea54285a70830a9e56adf6d8e2390f0f84e932d22 /arch
parent13b659211f730bb8fbc99225066a8392e3f4219b (diff)
downloadlinux-f51fc9dff2eebdc67ef1c5e3f2020a9b8649866c.tar.xz
um: Fix the -Wmissing-prototypes warning for get_thread_reg
[ Upstream commit 3144013e48f4f6e5127223c4ebc488016815dedb ] The get_thread_reg function is defined in the user code, and is called by the kernel code. It should be declared in a shared header. Fixes: dbba7f704aa0 ("um: stop polluting the namespace with registers.h contents") Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/um/include/asm/processor-generic.h1
-rw-r--r--arch/x86/um/shared/sysdep/archsetjmp.h7
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index 6c3779541845..5a7c05275aa7 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -94,7 +94,6 @@ extern struct cpuinfo_um boot_cpu_data;
#define current_cpu_data boot_cpu_data
#define cache_line_size() (boot_cpu_data.cache_alignment)
-extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf)
extern unsigned long __get_wchan(struct task_struct *p);
diff --git a/arch/x86/um/shared/sysdep/archsetjmp.h b/arch/x86/um/shared/sysdep/archsetjmp.h
index 166cedbab926..8c81d1a604a9 100644
--- a/arch/x86/um/shared/sysdep/archsetjmp.h
+++ b/arch/x86/um/shared/sysdep/archsetjmp.h
@@ -1,6 +1,13 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __X86_UM_SYSDEP_ARCHSETJMP_H
+#define __X86_UM_SYSDEP_ARCHSETJMP_H
+
#ifdef __i386__
#include "archsetjmp_32.h"
#else
#include "archsetjmp_64.h"
#endif
+
+unsigned long get_thread_reg(int reg, jmp_buf *buf);
+
+#endif /* __X86_UM_SYSDEP_ARCHSETJMP_H */