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Date:   Tue, 14 Jan 2020 19:52:42 +0100
From:   Thomas Gleixner <tglx@linutronix.de>
To:     LKML <linux-kernel@vger.kernel.org>
Cc:     x86@kernel.org, John Stultz <john.stultz@linaro.org>,
        Vincenzo Frascino <vincenzo.frascino@arm.com>,
        Andy Lutomirski <luto@kernel.org>,
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        Paolo Bonzini <pbonzini@redhat.com>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Juergen Gross <jgross@suse.com>,
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        Sasha Levin <sashal@kernel.org>,
        Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <paulburton@kernel.org>,
        James Hogan <jhogan@kernel.org>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Marc Zyngier <maz@kernel.org>
Subject: [patch 05/15] ARM: vdso: Compile high resolution parts conditionally
References: <20200114185237.273005683@linutronix.de>
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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@linutronix.de>
---
 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