From: Thomas Gleixner <tglx@linutronix.de>
For the upcoming call thunk patching it's less ifdeffery when the data
structure is unconditionally available. The code can then be trivially
fenced off with IS_ENABLED().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
arch/x86/include/asm/paravirt.h | 4 ++--
arch/x86/include/asm/paravirt_types.h | 20 ++++++++++++--------
2 files changed, 14 insertions(+), 10 deletions(-)
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -4,13 +4,13 @@
/* Various instructions on x86 need to be replaced for
* para-virtualization: those hooks are defined here. */
+#include <asm/paravirt_types.h>
+
#ifdef CONFIG_PARAVIRT
#include <asm/pgtable_types.h>
#include <asm/asm.h>
#include <asm/nospec-branch.h>
-#include <asm/paravirt_types.h>
-
#ifndef __ASSEMBLY__
#include <linux/bug.h>
#include <linux/types.h>
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -2,6 +2,17 @@
#ifndef _ASM_X86_PARAVIRT_TYPES_H
#define _ASM_X86_PARAVIRT_TYPES_H
+#ifndef __ASSEMBLY__
+/* These all sit in the .parainstructions section to tell us what to patch. */
+struct paravirt_patch_site {
+ u8 *instr; /* original instructions */
+ u8 type; /* type of this instruction */
+ u8 len; /* length of original instruction */
+};
+#endif
+
+#ifdef CONFIG_PARAVIRT
+
/* Bitmask of what can be clobbered: usually at least eax. */
#define CLBR_EAX (1 << 0)
#define CLBR_ECX (1 << 1)
@@ -584,16 +595,9 @@ unsigned long paravirt_ret0(void);
#define paravirt_nop ((void *)_paravirt_nop)
-/* These all sit in the .parainstructions section to tell us what to patch. */
-struct paravirt_patch_site {
- u8 *instr; /* original instructions */
- u8 type; /* type of this instruction */
- u8 len; /* length of original instruction */
-};
-
extern struct paravirt_patch_site __parainstructions[],
__parainstructions_end[];
#endif /* __ASSEMBLY__ */
-
+#endif /* CONFIG_PARAVIRT */
#endif /* _ASM_X86_PARAVIRT_TYPES_H */