From patchwork Tue May 16 19:35:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13243627 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDAA8C77B7A for ; Tue, 16 May 2023 19:36:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229849AbjEPTgg (ORCPT ); Tue, 16 May 2023 15:36:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229814AbjEPTge (ORCPT ); Tue, 16 May 2023 15:36:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1193B93DD; Tue, 16 May 2023 12:36:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 84061633A0; Tue, 16 May 2023 19:36:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50CFDC433D2; Tue, 16 May 2023 19:36:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684265786; bh=L/Qp31ZARnIa1bxC1DyJGeKMdFS5Wgtrq4kpQkQu2zw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bB9/JNuGXy+CuuSmBA1mIJQRdm3PDhpA4MNWL9vDjPPUv0Axx1Q2VLtiOmu5h4wlO ZIiveTA4vEzmvtg6jqHfnB2IA/KyFoLv58fU1C/G4RLxDtlLb+qWaDnPLIHqxp+uJN YuIEMEzwPeJyaUbpe/498ig/Aj8SroIALwN5a9JdhgsmlVncnEE6j0ApQr0CD6wwpG uayon8hFFnce7FZ+xk3f501jDfoYnSDBCEasqeaP9EuAKAaVBUhLY0N+aATStZTdOq FxWM3nrGI7ppoWHfghhJ25EqNePfkhNvOQNgYm+lOBRhMsfTshiuFBM/UygrVqzdJr FaoOyV2QyNahg== From: Arnd Bergmann To: x86@kernel.org Cc: Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Juergen Gross , "Srivatsa S. Bhat (VMware)" , Alexey Makhalov , VMware PV-Drivers Reviewers , Peter Zijlstra , Darren Hart , Andy Shevchenko , Boris Ostrovsky , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-pci@vger.kernel.org, platform-driver-x86@vger.kernel.org, xen-devel@lists.xenproject.org, linux-pm@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 03/20] x86: apic: hide unused safe_smp_processor_id on UP Date: Tue, 16 May 2023 21:35:32 +0200 Message-Id: <20230516193549.544673-4-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230516193549.544673-1-arnd@kernel.org> References: <20230516193549.544673-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org From: Arnd Bergmann When CONFIG_SMP is disabled, the prototype for safe_smp_processor_id() is hidden, which causes a W=1 warning: /home/arnd/arm-soc/arch/x86/kernel/apic/ipi.c:316:5: error: no previous prototype for 'safe_smp_processor_id' [-Werror=missing-prototypes] Since there are no callers in this configuration, just hide the definition as well. Signed-off-by: Arnd Bergmann --- arch/x86/kernel/apic/ipi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c index 2a6509e8c840..9bfd6e397384 100644 --- a/arch/x86/kernel/apic/ipi.c +++ b/arch/x86/kernel/apic/ipi.c @@ -301,6 +301,7 @@ void default_send_IPI_mask_logical(const struct cpumask *cpumask, int vector) local_irq_restore(flags); } +#ifdef CONFIG_SMP /* must come after the send_IPI functions above for inlining */ static int convert_apicid_to_cpu(int apic_id) { @@ -329,3 +330,4 @@ int safe_smp_processor_id(void) return cpuid >= 0 ? cpuid : 0; } #endif +#endif