From nobody Tue Apr 7 11:14:47 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65A9B3890F2; Fri, 13 Mar 2026 09:49:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773395371; cv=none; b=f5Ao80/DFF7IbQHCGT5GZpdeXZidwwjX0bii5QQhiw2ERS+ytjEsPQm1cuG0vM/t1jYwvn/3+6oqZmCLbcA5+48G6Rff2KgAnez9PNWINDg5N5gZervcF0Y7XLtZYh4ZUiTBoqcLf6fHkbA695UBfcwObl9OSMNIln7w5Lry7WA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773395371; c=relaxed/simple; bh=rUQb+Z8XCOJJahxSZ1DbE4oOFCh6UGrqUYNgYHqSvAc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=LQzl8OFV1Mj4S/HnvzUUSFwyHjXiKhEo9hLZSURqmPHKaxm/R0HglagWjYRaNNIQatkqavbOsH1jGlnnAUUD0tQIRaECeBtwGD1WiBCDymx3hPYHq0fgxYzYl5s0iAY44NLIeU1NDgOm0iIuBjkM5W7W9CDtW8lSCiFLjluidAI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FOFe69m1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FOFe69m1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F6D0C2BC87; Fri, 13 Mar 2026 09:49:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773395371; bh=rUQb+Z8XCOJJahxSZ1DbE4oOFCh6UGrqUYNgYHqSvAc=; h=From:To:Cc:Subject:Date:From; b=FOFe69m1WQfLhVow/0Ckx8JOq7W24G+NglJ4NKzNaolAFffFHSiFOHMKX1KnAOyp2 DPiVvZfYC9fp7NYsn+Rg0wFPY89hoJv0M8r7kc64yKHjP+gVS/mf6qr6jtezqWSoCX gUGxAz8O7vTGBLzXDzlfas+C1Hsg0t4fTaTQ+zJLtn0YMTNh4yWau+TgDeZv92ZUsQ ugT/wNX90RTDc64tOcq3B51ufIG7syS7EigPbQnZaME0q5IIoehOuWiKlda494jEml X3tAAumWhc7XYRxSkIiJY8sR54prjDVQeXZwe2YvyiylIw0gNJpcPT4f3QNa5y9F/5 kfev1hEH9EBOw== From: Arnd Bergmann To: Marc Zyngier , Oliver Upton , Vincent Donnefort Cc: Arnd Bergmann , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] KVM: arm64: avoid unused-variable warning Date: Fri, 13 Mar 2026 10:49:16 +0100 Message-Id: <20260313094925.3749287-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Arnd Bergmann The 'cpu' variable is only used inside of an #ifdef block and causes a warning if there is no user: arch/arm64/kvm/hyp_trace.c: In function 'kvm_hyp_trace_init': arch/arm64/kvm/hyp_trace.c:422:13: error: unused variable 'cpu' [-Werror=3D= unused-variable] 422 | int cpu; | ^~~ Change the #ifdef to an equivalent IS_ENABLED() check to avoid the warning. Fixes: b22888917fa4 ("KVM: arm64: Sync boot clock with the nVHE/pKVM hyp") Signed-off-by: Arnd Bergmann Reviewed-by: Vincent Donnefort --- arch/arm64/kvm/hyp_trace.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kvm/hyp_trace.c b/arch/arm64/kvm/hyp_trace.c index c1e28f6581ab..8b7f2bf2fba8 100644 --- a/arch/arm64/kvm/hyp_trace.c +++ b/arch/arm64/kvm/hyp_trace.c @@ -424,17 +424,16 @@ int __init kvm_hyp_trace_init(void) if (is_kernel_in_hyp_mode()) return 0; =20 -#ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND for_each_possible_cpu(cpu) { const struct arch_timer_erratum_workaround *wa =3D per_cpu(timer_unstable_counter_workaround, cpu); =20 - if (wa && wa->read_cntvct_el0) { + if (IS_ENABLED(CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND) && + wa && wa->read_cntvct_el0) { pr_warn("hyp trace can't handle CNTVCT workaround '%s'\n", wa->desc); return -EOPNOTSUPP; } } -#endif =20 hyp_trace_init_events(); =20 --=20 2.39.5