From mboxrd@z Thu Jan 1 00:00:00 1970 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 B4486C7EE30 for ; Wed, 1 Mar 2023 23:38:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229836AbjCAXiS (ORCPT ); Wed, 1 Mar 2023 18:38:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229703AbjCAXiD (ORCPT ); Wed, 1 Mar 2023 18:38:03 -0500 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5272B1207D for ; Wed, 1 Mar 2023 15:38:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1677713881; x=1709249881; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=K9unSxI1ETIAj+1EQ34Lma1zVNuCMXNt2Vl73pS93As=; b=Gsiwbs/iM1V0RTKgIgrZpxjkV7Hup/QPLrqP3qN2VKtrRLnHDyGR2vag CNqS12YIU+97oCETG/baDt+9e5B1XPr6byMzIiOYxL01sOB6AMhNgzAe8 VdNInO3Xyo6TJd2eZVWwHeHecxkWt8p3csF3zJg5djWQxvGcGkmS/6KCm HrWFmh/8zUzgGsXuZW1tREccWCxkxrRxRa+8LKKX477a4nw9CNpgiEGEW Nlhk8kl+BidXmlFYm5zzm+HHW9VeLYsXSUi6oeM9ULcjKbEGKvbbJdMAV ET8qNqXcz8YppXu6wLbuj0KXj0lvegwyee0Spt8l1pY+yvUtpsSJP68LT w==; X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="420818699" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="420818699" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Mar 2023 15:37:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10636"; a="738826802" X-IronPort-AV: E=Sophos;i="5.98,225,1673942400"; d="scan'208";a="738826802" Received: from ranerica-svr.sc.intel.com ([172.25.110.23]) by fmsmga008.fm.intel.com with ESMTP; 01 Mar 2023 15:37:56 -0800 From: Ricardo Neri To: Tony Luck , Dave Hansen , "Rafael J. Wysocki" , Reinette Chatre , Dan Williams , Len Brown Cc: Andi Kleen , Stephane Eranian , "Ravi V. Shankar" , Ricardo Neri , linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Ricardo Neri Subject: [PATCH v7 05/24] x86/apic/vector: Skip cleanup for the NMI vector Date: Wed, 1 Mar 2023 15:47:34 -0800 Message-Id: <20230301234753.28582-6-ricardo.neri-calderon@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> References: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The NMI vector is fixed. No cleanup is needed after updating affinity. Cc: Andi Kleen Cc: "Ravi V. Shankar" Cc: Stephane Eranian Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Ricardo Neri --- Changes since v6: * Introduced this patch. Changes since v5: * N/A Changes since v4: * N/A Changes since v3: * N/A Changes since v2: * N/A Changes since v1: * N/A --- arch/x86/kernel/apic/vector.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index a4cf041427cb..3045823ecc1b 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -1050,6 +1050,10 @@ void send_cleanup_vector(struct irq_cfg *cfg) { struct apic_chip_data *apicd; + /* NMI has a fixed vector. No vector management required. */ + if (cfg->delivery_mode == APIC_DELIVERY_MODE_NMI) + return; + apicd = container_of(cfg, struct apic_chip_data, hw_irq_cfg); if (apicd->move_in_progress) __send_cleanup_vector(apicd); -- 2.25.1