From patchwork Mon Dec 6 22:39:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 12660217 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6D71AC433EF for ; Mon, 6 Dec 2021 22:48:47 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.240078.416452 (Exim 4.92) (envelope-from ) id 1muMmc-0000jy-3O; Mon, 06 Dec 2021 22:48:30 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 240078.416452; Mon, 06 Dec 2021 22:48:29 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1muMmb-0000gi-BJ; Mon, 06 Dec 2021 22:48:29 +0000 Received: by outflank-mailman (input) for mailman id 240078; Mon, 06 Dec 2021 22:48:27 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1muMdw-0004ul-QO for xen-devel@lists.xenproject.org; Mon, 06 Dec 2021 22:39:32 +0000 Received: from galois.linutronix.de (galois.linutronix.de [193.142.43.55]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 61463160-56e5-11ec-8a4d-196798b21f7b; Mon, 06 Dec 2021 23:39:32 +0100 (CET) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 61463160-56e5-11ec-8a4d-196798b21f7b Message-ID: <20211206210438.851954664@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1638830372; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=w8UYsW5B4OWVVU7pGixKm7WjdRfdeuutiAGe4s0v9p0=; b=l6zogudvstk9l44X0viIhkG5kDqO2QITfTC/d6c2h5nF0bmVHp+7r1DJfsG/ZruoVdli7Q kfG2O1t6BSdlOTTFXP/352apOTG54Ck2H+zBZ4jRNvEdd2rGhJO3inv3BOHACLTb6TYZyu Q2V/5uUE3HP91uVco6VZYdigZWgY+laKfdDo2whpPbLjrNhc593tuDYHH2/thQ4KpWULpj /wjedyH/hE0QLxY/I26Q41gMLQnh1YrzDhx33dGkpZvJDGMc/fS1rdZrcqMrn5l6g529kV R+aSIlIAQGmAigY/kfdBWMI6uH4TUMx904zSAXJMmBTPK9awJPW1X6qPD+k2lg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1638830372; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=w8UYsW5B4OWVVU7pGixKm7WjdRfdeuutiAGe4s0v9p0=; b=1xxMH04pcreVhZpk3wJ/Fhx5cI4CNMyZzzmHHBHwM2cNv/9cju8D+JoXNUQFM7sNVHTuzl IA0azIbovmraB6AA== From: Thomas Gleixner To: LKML Cc: Bjorn Helgaas , Marc Zygnier , Alex Williamson , Kevin Tian , Jason Gunthorpe , Megha Dey , Ashok Raj , linux-pci@vger.kernel.org, Cedric Le Goater , xen-devel@lists.xenproject.org, Juergen Gross , Greg Kroah-Hartman , Will Deacon , Santosh Shilimkar , iommu@lists.linux-foundation.org, dmaengine@vger.kernel.org, Stuart Yoder , Laurentiu Tudor , Nishanth Menon , Tero Kristo , linux-arm-kernel@lists.infradead.org, Vinod Koul , Mark Rutland , Robin Murphy , Sinan Kaya Subject: [patch V2 22/36] genirq/msi: Use device MSI properties References: <20211206210307.625116253@linutronix.de> MIME-Version: 1.0 Date: Mon, 6 Dec 2021 23:39:31 +0100 (CET) instead of fiddling with MSI descriptors. Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jason Gunthorpe --- kernel/irq/msi.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -122,21 +122,8 @@ int msi_setup_device_data(struct device static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct msi_desc *entry; - bool is_msix = false; - unsigned long irq; - int retval; - - retval = kstrtoul(attr->attr.name, 10, &irq); - if (retval) - return retval; - - entry = irq_get_msi_desc(irq); - if (!entry) - return -ENODEV; - - if (dev_is_pci(dev)) - is_msix = entry->pci.msi_attrib.is_msix; + /* MSI vs. MSIX is per device not per interrupt */ + bool is_msix = msi_device_has_property(dev, MSI_PROP_PCI_MSIX); return sysfs_emit(buf, "%s\n", is_msix ? "msix" : "msi"); }