linux-kernel - [PATCH v3 04/11] net/ntb: Use never-managed version of pci

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Message-ID: <20241209130632.132074-6-pstanner@redhat.com>
Date: Mon,  9 Dec 2024 14:06:26 +0100
From: Philipp Stanner <pstanner@...hat.com>
To: amien Le Moal <dlemoal@...nel.org>,
	Niklas Cassel <cassel@...nel.org>,
	Basavaraj Natikar <basavaraj.natikar@....com>,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <bentiss@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
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	Sudarsana Kalluru <skalluru@...vell.com>,
	Manish Chopra <manishc@...vell.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
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	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rasesh Mody <rmody@...vell.com>,
	GR-Linux-NIC-Dev@...vell.com,
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	Shyam Sundar S K <Shyam-sundar.S-k@....com>,
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	Dave Jiang <dave.jiang@...el.com>,
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	Stefano Stabellini <sstabellini@...nel.org>,
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	Mario Limonciello <mario.limonciello@....com>,
	Chen Ni <nichen@...as.ac.cn>,
	Philipp Stanner <pstanner@...hat.com>,
	Ricky Wu <ricky_wu@...ltek.com>,
	Al Viro <viro@...iv.linux.org.uk>,
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	Jason Gunthorpe <jgg@...pe.ca>,
	Yi Liu <yi.l.liu@...el.com>,
	Kunwu Chan <chentao@...inos.cn>,
	Dan Carpenter <dan.carpenter@...aro.org>,
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	Reinette Chatre <reinette.chatre@...el.com>,
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	Ye Bin <yebin10@...wei.com>
Cc: linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-wireless@...r.kernel.org,
	ntb@...ts.linux.dev,
	linux-pci@...r.kernel.org,
	kvm@...r.kernel.org,
	xen-devel@...ts.xenproject.org
Subject: [PATCH v3 04/11] net/ntb: Use never-managed version of pci_intx()

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.

hw/amd and how/intel enable their PCI-Device with pci_enable_device().
Thus, they need the never-managed version.

Replace pci_intx() with pci_intx_unmanaged().

Signed-off-by: Philipp Stanner <pstanner@...hat.com>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@....com> #for ntb_hw_amd.c
Acked-by: Dave Jiang <dave.jiang@...el.com> # for ntb_hw_gen1.c
---
 drivers/ntb/hw/amd/ntb_hw_amd.c    | 4 ++--
 drivers/ntb/hw/intel/ntb_hw_gen1.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index d687e8c2cc78..b146f170e839 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -791,7 +791,7 @@ static int ndev_init_isr(struct amd_ntb_dev *ndev,
 err_msi_enable:
 
 	/* Try to set up intx irq */
-	pci_intx(pdev, 1);
+	pci_intx_unmanaged(pdev, 1);
 
 	rc = request_irq(pdev->irq, ndev_irq_isr, IRQF_SHARED,
 			 "ndev_irq_isr", ndev);
@@ -831,7 +831,7 @@ static void ndev_deinit_isr(struct amd_ntb_dev *ndev)
 		if (pci_dev_msi_enabled(pdev))
 			pci_disable_msi(pdev);
 		else
-			pci_intx(pdev, 0);
+			pci_intx_unmanaged(pdev, 0);
 	}
 }
 
diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
index 079b8cd79785..9ad9d7fe227e 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
+++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
@@ -445,7 +445,7 @@ int ndev_init_isr(struct intel_ntb_dev *ndev,
 
 	/* Try to set up intx irq */
 
-	pci_intx(pdev, 1);
+	pci_intx_unmanaged(pdev, 1);
 
 	rc = request_irq(pdev->irq, ndev_irq_isr, IRQF_SHARED,
 			 "ndev_irq_isr", ndev);
-- 
2.47.1