Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751392AbdGQKYM (ORCPT ); Mon, 17 Jul 2017 06:24:12 -0400 Received: from mga03.intel.com ([134.134.136.65]:8354 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751325AbdGQKYK (ORCPT ); Mon, 17 Jul 2017 06:24:10 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,374,1496127600"; d="scan'208";a="1173428026" From: Andy Shevchenko To: "Rafael J . Wysocki" , linux-pm@vger.kernel.org, Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org, Hanjun Guo Cc: Andy Shevchenko Subject: [PATCH v2 1/5] ACPI / boot: Don't define unused variables Date: Mon, 17 Jul 2017 13:24:00 +0300 Message-Id: <20170717102404.27191-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170717102404.27191-1-andriy.shevchenko@linux.intel.com> References: <20170717102404.27191-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1577 Lines: 47 Some code in acpi_parse_x2apic() conditionally compiled, though parts of it are being used in any case. This annoys gcc. arch/x86/kernel/acpi/boot.c: In function ‘acpi_parse_x2apic’: arch/x86/kernel/acpi/boot.c:203:5: warning: variable ‘enabled’ set but not used [-Wunused-but-set-variable] u8 enabled; ^~~~~~~ arch/x86/kernel/acpi/boot.c:202:6: warning: variable ‘apic_id’ set but not used [-Wunused-but-set-variable] int apic_id; ^~~~~~~ Re-arrange the code to avoid compiling unused variables. Signed-off-by: Andy Shevchenko --- arch/x86/kernel/acpi/boot.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 6bb680671088..09ddb3cd627a 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -199,8 +199,10 @@ static int __init acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) { struct acpi_madt_local_x2apic *processor = NULL; +#ifdef CONFIG_X86_X2APIC int apic_id; u8 enabled; +#endif processor = (struct acpi_madt_local_x2apic *)header; @@ -209,9 +211,10 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) acpi_table_print_madt_entry(header); +#ifdef CONFIG_X86_X2APIC apic_id = processor->local_apic_id; enabled = processor->lapic_flags & ACPI_MADT_ENABLED; -#ifdef CONFIG_X86_X2APIC + /* * We need to register disabled CPU as well to permit * counting disabled CPUs. This allows us to size -- 2.11.0