[PATCH v3 8/9] um: Fix -Wmissing-prototypes warnings for text_poke*

[Tiwei Bie]

The prototypes for text_poke* are declared in asm/text-patching.h
under arch/x86/include/. It's safe to include this header, as it's
UML-aware (by checking CONFIG_UML_X86).

This will address below -Wmissing-prototypes warnings:

arch/um/kernel/um_arch.c:461:7: warning: no previous prototype for ‘text_poke’ [-Wmissing-prototypes]
arch/um/kernel/um_arch.c:473:6: warning: no previous prototype for ‘text_poke_sync’ [-Wmissing-prototypes]

Signed-off-by: Tiwei Bie <tiwei.btw@xxxxxxxxxxxx>
---
 arch/um/kernel/um_arch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 7a9820797eae..e95f805e5004 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -23,6 +23,7 @@
 #include <asm/cpufeature.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
+#include <asm/text-patching.h>
 #include <as-layout.h>
 #include <arch.h>
 #include <init.h>
-- 
2.34.1