From patchwork Wed Nov 13 12:41:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Stanner X-Patchwork-Id: 13873550 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BC60320012B for ; Wed, 13 Nov 2024 12:42:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731501771; cv=none; b=onSDHHIxrS3/yer80LvcMobYOuCzbJWG8UMZSJpjPPCVAlTesTA6cznT15Z89cDEsA3BSZjWjKAaNPu5o7D/sdNyYaUCzm9e4nRy3PA7+U5vpUtGELBg4tTrz2eX19ZpgOuhBuI+BynNlRREmRpe9ySisbXvujsc7Zc+oLzkV8o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731501771; c=relaxed/simple; bh=x/7QFhAzHkLj8+w14TM+V3xJvs5L48Anth4HQxPkvDk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hjAK0mi3gkwZ+yjmy5q8AbY/PmefoCKYlzh3wa32JydiK0/BlT3sRxdDQVRFwneeK2i6oytiK69FgCwBys1exWC80WYmZCrk2OP/G1bG7a4NoHSvpLfpbdMw/A69IV2fSYwAAJwZTxee7I96vvqN+vHcw/O+/mJ3OBScKPxo8nA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=PQjxxlg2; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PQjxxlg2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1731501768; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NsJKOkpA+QoYlzqeYDbY0Dl9xjdlxWNvzFNzd4dMwhk=; b=PQjxxlg2DkGN8DG4vDH2PICeQs7kfCV2vBxNb/MtQ5DRbGuhW/MiIKDE6PuOaRm40l3tcy W+e8/hg95847ObDgplNAfPVqeuzdo5M00Podq0E++NffN07EKi3f4GrXOUmKSWsprA6zOV VdeYK2RZYJzsOgN5GXYpunoFH0olmtA= Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-510-wEbzi1qSMSKOSB39bpqBbQ-1; Wed, 13 Nov 2024 07:42:47 -0500 X-MC-Unique: wEbzi1qSMSKOSB39bpqBbQ-1 X-Mimecast-MFC-AGG-ID: wEbzi1qSMSKOSB39bpqBbQ Received: by mail-wr1-f69.google.com with SMTP id ffacd0b85a97d-37d5ca5bfc8so3573316f8f.0 for ; Wed, 13 Nov 2024 04:42:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731501766; x=1732106566; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=NsJKOkpA+QoYlzqeYDbY0Dl9xjdlxWNvzFNzd4dMwhk=; b=EZFzm8aQv32mTNvReDj1KB/C259cjWHTB/doSP51ifwlWk4Otv3HqxU9KzDFGoZ4al mTvUm1+zG3pJbVEHcQHwQ+e+3cOqUbKROJklWdugL2FqahYXkAXjCp7S6JAh+m2uo+Fp bg6pOp22dTfePjokiSfPzh/XHmCYmMQYvEjqqVAtxOfqjiA6dkl6fOpQAE990d7kjDWr WHNW38paY8VDcsjKAHliJxBnlVN4/nVaMKEEcCvvzTqHJ/mXVxCEPaJLhf0oidZIv9yB g5CJW2Igilt7nmkWMM/dCla/9vbqTx8bPXm4IOW2oRUoGfGvsGbWKojBCXYglGmz5fhI tNww== X-Forwarded-Encrypted: i=1; AJvYcCXAyPW39NIHl0vlH9k+kLuV5LJblR8W+HddA+YxA1nQOIvQAagNNFxuw0tCVFcDR89qzh6hGuVJv5E=@vger.kernel.org X-Gm-Message-State: AOJu0Yz9U2rTrOveYuWHoLOaJN0XLHIi/a2H57R9OJdS07B0sMLiqO4J PRBBJZmm15YFIjeYdHjFUZ1NLN01qClXS1rs4ef5hvGGC6wgQaQOzQswWWcaLufh0MLlYNhqUfs ddbNHk8WkG2fYqb9YAENo+04FM/LZWFDL80CfejYKL8KeTfMw3vcogXyIDQ== X-Received: by 2002:a5d:47ac:0:b0:37d:5282:1339 with SMTP id ffacd0b85a97d-3820df6136cmr2369066f8f.22.1731501766140; Wed, 13 Nov 2024 04:42:46 -0800 (PST) X-Google-Smtp-Source: AGHT+IFpjkcG3JEnob3xzqfsNCARyMkng1y9gR5mdhMcNm6Gi1JEJjom42U2s4Q7CInAPcp8pAzepA== X-Received: by 2002:a5d:47ac:0:b0:37d:5282:1339 with SMTP id ffacd0b85a97d-3820df6136cmr2368992f8f.22.1731501765706; Wed, 13 Nov 2024 04:42:45 -0800 (PST) Received: from eisenberg.redhat.com (nat-pool-muc-u.redhat.com. [149.14.88.27]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-381ed99aa18sm18023528f8f.61.2024.11.13.04.42.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Nov 2024 04:42:45 -0800 (PST) From: Philipp Stanner To: Damien Le Moal , Niklas Cassel , Basavaraj Natikar , Jiri Kosina , Benjamin Tissoires , Arnd Bergmann , Greg Kroah-Hartman , Alex Dubov , Sudarsana Kalluru , Manish Chopra , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rasesh Mody , GR-Linux-NIC-Dev@marvell.com, Igor Mitsyanko , Sergey Matyukevich , Kalle Valo , Sanjay R Mehta , Shyam Sundar S K , Jon Mason , Dave Jiang , Allen Hubbe , Bjorn Helgaas , Alex Williamson , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Philipp Stanner , Mario Limonciello , Chen Ni , Ricky Wu , Al Viro , Breno Leitao , Kevin Tian , Thomas Gleixner , Mostafa Saleh , Andy Shevchenko , Jason Gunthorpe , Yi Liu , Kunwu Chan , Ankit Agrawal , Christian Brauner , Reinette Chatre , Eric Auger , Ye Bin Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, ntb@lists.linux.dev, linux-pci@vger.kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org Subject: [PATCH v2 07/11] PCI: MSI: Use never-managed version of pci_intx() Date: Wed, 13 Nov 2024 13:41:55 +0100 Message-ID: <20241113124158.22863-9-pstanner@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241113124158.22863-2-pstanner@redhat.com> References: <20241113124158.22863-2-pstanner@redhat.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 pci_intx() is a hybrid function which can sometimes be managed through devres. To remove this hybrid nature from pci_intx(), it is necessary to port users to either an always-managed or a never-managed version. MSI sets up its own separate devres callback implicitly in pcim_setup_msi_release(). This callback ultimately uses pci_intx(), which is problematic since the callback of course runs on driver-detach. That problem has last been described here: https://lore.kernel.org/all/ee44ea7ac760e73edad3f20b30b4d2fff66c1a85.camel@redhat.com/ Replace the call to pci_intx() with one to the never-managed version pci_intx_unmanaged(). Signed-off-by: Philipp Stanner Reviewed-by: Thomas Gleixner --- drivers/pci/msi/api.c | 2 +- drivers/pci/msi/msi.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c index b956ce591f96..c95e2e7dc9ab 100644 --- a/drivers/pci/msi/api.c +++ b/drivers/pci/msi/api.c @@ -289,7 +289,7 @@ int pci_alloc_irq_vectors_affinity(struct pci_dev *dev, unsigned int min_vecs, */ if (affd) irq_create_affinity_masks(1, affd); - pci_intx(dev, 1); + pci_intx_unmanaged(dev, 1); return 1; } } diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c index 3a45879d85db..53f13b09db50 100644 --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -268,7 +268,7 @@ EXPORT_SYMBOL_GPL(pci_write_msi_msg); static void pci_intx_for_msi(struct pci_dev *dev, int enable) { if (!(dev->dev_flags & PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG)) - pci_intx(dev, enable); + pci_intx_unmanaged(dev, enable); } static void pci_msi_set_enable(struct pci_dev *dev, int enable)