linux-kernel - [PATCH] x86/kvm: remove unused macro HV_CLOCK

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Date:   Fri,  6 Nov 2020 16:39:23 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     hpa@...or.com
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86/kvm: remove unused macro HV_CLOCK_SIZE

This macro is useless, and could cause gcc warning:
arch/x86/kernel/kvmclock.c:47:0: warning: macro "HV_CLOCK_SIZE" is not
used [-Wunused-macros]
Let's remove it.

Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com>
Cc: Paolo Bonzini <pbonzini@...hat.com> 
Cc: Sean Christopherson <sean.j.christopherson@...el.com> 
Cc: Vitaly Kuznetsov <vkuznets@...hat.com> 
Cc: Wanpeng Li <wanpengli@...cent.com> 
Cc: Jim Mattson <jmattson@...gle.com> 
Cc: Joerg Roedel <joro@...tes.org> 
Cc: Thomas Gleixner <tglx@...utronix.de> 
Cc: Ingo Molnar <mingo@...hat.com> 
Cc: Borislav Petkov <bp@...en8.de> 
Cc: x86@...nel.org 
Cc: "H. Peter Anvin" <hpa@...or.com> 
Cc: kvm@...r.kernel.org 
Cc: linux-kernel@...r.kernel.org 
---
 arch/x86/kernel/kvmclock.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 34b18f6eeb2c..aa593743acf6 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -44,7 +44,6 @@ static int __init parse_no_kvmclock_vsyscall(char *arg)
 early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall);
 
 /* Aligned to page sizes to match whats mapped via vsyscalls to userspace */
-#define HV_CLOCK_SIZE	(sizeof(struct pvclock_vsyscall_time_info) * NR_CPUS)
 #define HVC_BOOT_ARRAY_SIZE \
 	(PAGE_SIZE / sizeof(struct pvclock_vsyscall_time_info))
 
-- 
1.8.3.1