Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756059AbbDIS0k (ORCPT ); Thu, 9 Apr 2015 14:26:40 -0400 Received: from relay2.sgi.com ([192.48.180.65]:41474 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755911AbbDIS0b (ORCPT ); Thu, 9 Apr 2015 14:26:31 -0400 Message-Id: <20150409182628.952357922@asylum.americas.sgi.com> References: <20150409182628.627594537@asylum.americas.sgi.com> User-Agent: quilt/0.46-1 Date: Thu, 09 Apr 2015 13:26:29 -0500 From: Mike Travis To: Ingo Molnar , Andrew Morton , Thomas Gleixner , "H. Peter Anvin" Cc: Hedi Berriche , Dimitri Sivanich , x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] X86, UV: Update UV APIC OEM check Content-Disposition: inline; filename=update-uv-apic-oem-check Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 956 Lines: 29 Optimize the first "SGI" OEM check to return faster if the system is not an SGI or UV system. Signed-off-by: Mike Travis Acked-by: Hedi Berriche Acked-by: Dimitri Sivanich --- arch/x86/kernel/apic/x2apic_uv_x.c | 3 +++ 1 file changed, 3 insertions(+) --- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c +++ linux/arch/x86/kernel/apic/x2apic_uv_x.c @@ -146,6 +146,9 @@ static int __init uv_acpi_madt_oem_check { int pnodeid, is_uv1, is_uv2, is_uv3; + if (strncmp(oem_id, "SGI", 3) != 0) + return 0; + is_uv1 = !strcmp(oem_id, "SGI"); is_uv2 = !strcmp(oem_id, "SGI2"); is_uv3 = !strncmp(oem_id, "SGI3", 4); /* there are varieties of UV3 */ -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/