[PATCH v2] kexec: move machine_kexec_post_load() to public interface

[Pavel Tatashin]

machine_kexec_post_load() is called after kexec load is finished. It must
declared in public header not in kexec_internal.h

Fixes the following compiler warning:

arch/arm64/kernel/machine_kexec.c:62:5: warning: no previous prototype for
function 'machine_kexec_post_load' [-Wmissing-prototypes]
   int machine_kexec_post_load(struct kimage *kimage)

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Link: https://lore.kernel.org/linux-arm-kernel/202102030727.gqTokACH-lkp@xxxxxxxxx
Signed-off-by: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
---
 include/linux/kexec.h   | 2 ++
 kernel/kexec_internal.h | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 9e93bef52968..3671b845cf28 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -309,6 +309,8 @@ extern void machine_kexec_cleanup(struct kimage *image);
 extern int kernel_kexec(void);
 extern struct page *kimage_alloc_control_pages(struct kimage *image,
 						unsigned int order);
+int machine_kexec_post_load(struct kimage *image);
+
 extern void __crash_kexec(struct pt_regs *);
 extern void crash_kexec(struct pt_regs *);
 int kexec_should_crash(struct task_struct *);
diff --git a/kernel/kexec_internal.h b/kernel/kexec_internal.h
index 39d30ccf8d87..48aaf2ac0d0d 100644
--- a/kernel/kexec_internal.h
+++ b/kernel/kexec_internal.h
@@ -13,8 +13,6 @@ void kimage_terminate(struct kimage *image);
 int kimage_is_destination_range(struct kimage *image,
 				unsigned long start, unsigned long end);
 
-int machine_kexec_post_load(struct kimage *image);
-
 extern struct mutex kexec_mutex;
 
 #ifdef CONFIG_KEXEC_FILE
-- 
2.25.1