From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932072AbZEDQ7E (ORCPT ); Mon, 4 May 2009 12:59:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758313AbZEDQ6q (ORCPT ); Mon, 4 May 2009 12:58:46 -0400 Received: from hera.kernel.org ([140.211.167.34]:37504 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757943AbZEDQ6o (ORCPT ); Mon, 4 May 2009 12:58:44 -0400 Date: Mon, 4 May 2009 16:57:57 GMT From: tip-bot for Cyrill Gorcunov To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, gorcunov@openvz.org, steiner@sgi.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, gorcunov@openvz.org, steiner@sgi.com, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <20090502093956.GB4791@lenovo> References: <20090502093956.GB4791@lenovo> Subject: [tip:x86/apic] x86: uv io-apic - use BUILD_BUG_ON instead of BUG_ON Message-ID: Git-Commit-ID: 1cbac972ba28e706fa9ce4d4c81830040bc811ee X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Mon, 04 May 2009 16:57:59 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 1cbac972ba28e706fa9ce4d4c81830040bc811ee Gitweb: http://git.kernel.org/tip/1cbac972ba28e706fa9ce4d4c81830040bc811ee Author: Cyrill Gorcunov AuthorDate: Sat, 2 May 2009 13:39:56 +0400 Committer: Ingo Molnar CommitDate: Sun, 3 May 2009 10:38:21 +0200 x86: uv io-apic - use BUILD_BUG_ON instead of BUG_ON The expression is known to be true/false at compilation time so we're allowed to use build-time instead of run-time check. Also align 'entry' items assignment. [ Impact: shrink kernel a bit, cleanup ] Signed-off-by: Cyrill Gorcunov Cc: Jack Steiner LKML-Reference: <20090502093956.GB4791@lenovo> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/io_apic.c | 22 +++++++++++----------- 1 files changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 8aef5f9..a80335b 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3749,6 +3749,8 @@ int arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade, unsigned long flags; int err; + BUILD_BUG_ON(sizeof(struct uv_IO_APIC_route_entry) != sizeof(unsigned long)); + cfg = irq_cfg(irq); err = assign_irq_vector(irq, cfg, eligible_cpu); @@ -3762,15 +3764,13 @@ int arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade, mmr_value = 0; entry = (struct uv_IO_APIC_route_entry *)&mmr_value; - BUG_ON(sizeof(struct uv_IO_APIC_route_entry) != sizeof(unsigned long)); - - entry->vector = cfg->vector; - entry->delivery_mode = apic->irq_delivery_mode; - entry->dest_mode = apic->irq_dest_mode; - entry->polarity = 0; - entry->trigger = 0; - entry->mask = 0; - entry->dest = apic->cpu_mask_to_apicid(eligible_cpu); + entry->vector = cfg->vector; + entry->delivery_mode = apic->irq_delivery_mode; + entry->dest_mode = apic->irq_dest_mode; + entry->polarity = 0; + entry->trigger = 0; + entry->mask = 0; + entry->dest = apic->cpu_mask_to_apicid(eligible_cpu); mmr_pnode = uv_blade_to_pnode(mmr_blade); uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value); @@ -3788,10 +3788,10 @@ void arch_disable_uv_irq(int mmr_blade, unsigned long mmr_offset) struct uv_IO_APIC_route_entry *entry; int mmr_pnode; + BUILD_BUG_ON(sizeof(struct uv_IO_APIC_route_entry) != sizeof(unsigned long)); + mmr_value = 0; entry = (struct uv_IO_APIC_route_entry *)&mmr_value; - BUG_ON(sizeof(struct uv_IO_APIC_route_entry) != sizeof(unsigned long)); - entry->mask = 1; mmr_pnode = uv_blade_to_pnode(mmr_blade);