Thread (43 messages) 43 messages, 11 authors, 2024-10-14

Re: [RFC PATCH 05/13] net/ntb: Use never-managed version of pci_intx()

From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Date: 2024-10-10 04:42:58
Also in: kvm, linux-ide, linux-input, linux-pci, linux-sound, linux-staging, linux-wireless, lkml, xen-devel


On 10/9/2024 14:05, Philipp Stanner wrote:
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 <redacted>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> #for ntb_hw_amd.c
quoted hunk ↗ jump to hunk
---
 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);
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