diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2020-07-28 23:03:41 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-07-29 14:25:18 -0500 |
| commit | 2167c40657981f8a3d1ff1f04d4bda6b4a64f8e2 (patch) | |
| tree | dce96c070e732fb5f2a266bcb2bf27a1a20c0a10 | |
| parent | 2575b2f3ee711f4638e772e07a5146afcc704f30 (diff) | |
| download | lwn-2167c40657981f8a3d1ff1f04d4bda6b4a64f8e2.tar.gz lwn-2167c40657981f8a3d1ff1f04d4bda6b4a64f8e2.zip | |
PCI: Remove unused pci_lost_interrupt()
388c8c16abaf ("PCI: add routines for debugging and handling lost
interrupts") added pci_lost_interrupt() that apparently never has had a
single user. Remove it.
Link: https://lore.kernel.org/r/e328d059-3068-6a40-28df-f81f616d15a0@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| -rw-r--r-- | drivers/pci/irq.c | 50 | ||||
| -rw-r--r-- | include/linux/pci.h | 7 |
2 files changed, 0 insertions, 57 deletions
diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c index a1de501a2729..12ecd0aaa28d 100644 --- a/drivers/pci/irq.c +++ b/drivers/pci/irq.c @@ -6,61 +6,11 @@ * Copyright (C) 2017 Christoph Hellwig. */ -#include <linux/acpi.h> #include <linux/device.h> #include <linux/kernel.h> #include <linux/export.h> #include <linux/pci.h> -static void pci_note_irq_problem(struct pci_dev *pdev, const char *reason) -{ - struct pci_dev *parent = to_pci_dev(pdev->dev.parent); - - pci_err(pdev, "Potentially misrouted IRQ (Bridge %s %04x:%04x)\n", - dev_name(&parent->dev), parent->vendor, parent->device); - pci_err(pdev, "%s\n", reason); - pci_err(pdev, "Please report to linux-kernel@vger.kernel.org\n"); - WARN_ON(1); -} - -/** - * pci_lost_interrupt - reports a lost PCI interrupt - * @pdev: device whose interrupt is lost - * - * The primary function of this routine is to report a lost interrupt - * in a standard way which users can recognise (instead of blaming the - * driver). - * - * Returns: - * a suggestion for fixing it (although the driver is not required to - * act on this). - */ -enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *pdev) -{ - if (pdev->msi_enabled || pdev->msix_enabled) { - enum pci_lost_interrupt_reason ret; - - if (pdev->msix_enabled) { - pci_note_irq_problem(pdev, "MSIX routing failure"); - ret = PCI_LOST_IRQ_DISABLE_MSIX; - } else { - pci_note_irq_problem(pdev, "MSI routing failure"); - ret = PCI_LOST_IRQ_DISABLE_MSI; - } - return ret; - } -#ifdef CONFIG_ACPI - if (!(acpi_disabled || acpi_noirq)) { - pci_note_irq_problem(pdev, "Potential ACPI misrouting please reboot with acpi=noirq"); - /* currently no way to fix acpi on the fly */ - return PCI_LOST_IRQ_DISABLE_ACPI; - } -#endif - pci_note_irq_problem(pdev, "unknown cause (not MSI or ACPI)"); - return PCI_LOST_IRQ_NO_INFORMATION; -} -EXPORT_SYMBOL(pci_lost_interrupt); - /** * pci_request_irq - allocate an interrupt line for a PCI device * @dev: PCI device to operate on diff --git a/include/linux/pci.h b/include/linux/pci.h index c79d83304e52..2dcd67f509a8 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1053,13 +1053,6 @@ void pci_sort_breadthfirst(void); /* Generic PCI functions exported to card drivers */ -enum pci_lost_interrupt_reason { - PCI_LOST_IRQ_NO_INFORMATION = 0, - PCI_LOST_IRQ_DISABLE_MSI, - PCI_LOST_IRQ_DISABLE_MSIX, - PCI_LOST_IRQ_DISABLE_ACPI, -}; -enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *dev); int pci_find_capability(struct pci_dev *dev, int cap); int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap); int pci_find_ext_capability(struct pci_dev *dev, int cap); |