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From: Markus Elfring <Markus.Elfring@web.de>
To: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org,
	Alexander Graf <agraf@suse.de>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Madhavan Srinivasan <maddy@linux.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org,
	Miaoqian Lin <linmq006@gmail.com>
Subject: [PATCH] KVM: PPC: Use pointer from memcpy() call for assignment in kvmppc_kvm_pv()
Date: Thu, 30 Oct 2025 21:51:00 +0100	[thread overview]
Message-ID: <ad42871b-22a6-4819-b5db-835e7044b3f1@web.de> (raw)

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 30 Oct 2025 21:43:20 +0100
Subject: [PATCH] KVM: PPC: Use pointer from memcpy() call for assignment in kvmppc_kvm_pv()

A pointer was assigned to a variable. The same pointer was used for
the destination parameter of a memcpy() call.
This function is documented in the way that the same value is returned.
Thus convert two separate statements into a direct variable assignment for
the return value from a memory copy action.

The source code was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 arch/powerpc/kvm/powerpc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 2ba057171ebe..ae28447b3e04 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -216,8 +216,7 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
 
 			shared &= PAGE_MASK;
 			shared |= vcpu->arch.magic_page_pa & 0xf000;
-			new_shared = (void*)shared;
-			memcpy(new_shared, old_shared, 0x1000);
+			new_shared = memcpy(shared, old_shared, 0x1000);
 			vcpu->arch.shared = new_shared;
 		}
 #endif
-- 
2.51.1


             reply	other threads:[~2025-10-30 20:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-30 20:51 Markus Elfring [this message]
2025-10-30 21:41 ` [PATCH] KVM: PPC: Use pointer from memcpy() call for assignment in kvmppc_kvm_pv() David Laight
2025-11-03  5:20 ` Gautam Menghani
2025-11-03  7:11   ` Markus Elfring

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