From patchwork Fri Nov 27 16:18:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gabriele Paoloni X-Patchwork-Id: 1346073 Return-Path: Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80B08C64E90 for ; Fri, 27 Nov 2020 16:18:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67E9721534 for ; Fri, 27 Nov 2020 16:18:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731399AbgK0QSe (ORCPT ); Fri, 27 Nov 2020 11:18:34 -0500 Received: from mga09.intel.com ([134.134.136.24]:46780 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730324AbgK0QSe (ORCPT ); Fri, 27 Nov 2020 11:18:34 -0500 IronPort-SDR: AK9qlcSie6WFqH5XJuObpH+7dxcYRutjdw0rXkKjEok94dKAqbTwb1q62aXe3xzTrW0omzhJPg RaVQoVRqA/bQ== X-IronPort-AV: E=McAfee;i="6000,8403,9818"; a="172567164" X-IronPort-AV: E=Sophos;i="5.78,375,1599548400"; d="scan'208";a="172567164" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2020 08:18:33 -0800 IronPort-SDR: LNRD34yjDKhKsejH9usrAuRXFZh1h9gtsXH3CebUPDjWub2FJGJHN03b1fseTFWRiEy4qQ0YV2 PlGvHyJk9HFA== X-IronPort-AV: E=Sophos;i="5.78,375,1599548400"; d="scan'208";a="548095161" Received: from paolonig001.ir.intel.com ([163.33.183.93]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2020 08:18:31 -0800 From: Gabriele Paoloni To: tony.luck@intel.com, bp@alien8.de, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, hpa@zytor.com, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org Cc: gabriele.paoloni@intel.com, linux-safety@lists.elisa.tech Subject: [PATCH v2 4/5] x86/mce: remove redundant call to irq_work_queue() Date: Fri, 27 Nov 2020 16:18:18 +0000 Message-Id: <20201127161819.3106432-5-gabriele.paoloni@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201127161819.3106432-1-gabriele.paoloni@intel.com> References: <20201127161819.3106432-1-gabriele.paoloni@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Right now in do_machine_check() __mc_scan_banks() triggers the following call tree: __mc_scan_banks()->mce_log()->irq_work_queue(&mce_irq_work). Hence the call of irq_work_queue() below after __mc_scan_banks() seems redundant. Just remove it. Signed-off-by: Gabriele Paoloni Reviewed-by: Tony Luck --- arch/x86/kernel/cpu/mce/core.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index d766a3f6a343..802302c54762 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -1408,9 +1408,6 @@ noinstr void do_machine_check(struct pt_regs *regs) } } - if (worst > 0) - irq_work_queue(&mce_irq_work); - if (worst != MCE_AR_SEVERITY && !kill_it) goto out;