linux-kernel - [PATCH] KVM: x86: SVM: remove unused variable dst_vaddr

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Date:   Tue, 28 Aug 2018 16:22:28 +0100
From:   Colin King <colin.king@...onical.com>
To:     Joerg Roedel <joro@...tes.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        kvm@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] KVM: x86: SVM: remove unused variable dst_vaddr_end

From: Colin Ian King <colin.king@...onical.com>

Variable dst_vaddr_end is being assigned but is never used hence it is
redundant and can be removed.

Cleans up clang warning:
variable 'dst_vaddr_end' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 arch/x86/kvm/svm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 6276140044d0..4339fc4715fa 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -6747,7 +6747,7 @@ static int __sev_dbg_encrypt_user(struct kvm *kvm, unsigned long paddr,
 static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
 {
 	unsigned long vaddr, vaddr_end, next_vaddr;
-	unsigned long dst_vaddr, dst_vaddr_end;
+	unsigned long dst_vaddr;
 	struct page **src_p, **dst_p;
 	struct kvm_sev_dbg debug;
 	unsigned long n;
@@ -6763,7 +6763,6 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
 	size = debug.len;
 	vaddr_end = vaddr + size;
 	dst_vaddr = debug.dst_uaddr;
-	dst_vaddr_end = dst_vaddr + size;
 
 	for (; vaddr < vaddr_end; vaddr = next_vaddr) {
 		int len, s_off, d_off;
-- 
2.17.1