[patch 05/15] ARM: vdso: Compile high resolution parts conditionally

[Thomas Gleixner]

If the architected timer is disabled in the kernel configuration then let
the core VDSO code drop the high resolution parts at compile time.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 arch/arm/include/asm/vdso/gettimeofday.h |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/arch/arm/include/asm/vdso/gettimeofday.h
+++ b/arch/arm/include/asm/vdso/gettimeofday.h
@@ -106,6 +106,12 @@ static __always_inline int clock_getres3
 	return ret;
 }
 
+static inline bool arm_vdso_hres_capable(void)
+{
+	return IS_ENABLED(CONFIG_ARM_ARCH_TIMER);
+}
+#define __arch_vdso_hres_capable arm_vdso_hres_capable
+
 static __always_inline u64 __arch_get_hw_counter(int clock_mode)
 {
 #ifdef CONFIG_ARM_ARCH_TIMER