Revert "PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed"

commit 67b4eab91caf2ad574cab1b17ae09180ea2e116e upstream.

Revert 811a4e6fce09 ("PCI: Add helpers to manage pci_dev->irq and
pci_dev->irq_managed").

This is part of reverting 991de2e59090 ("PCI, x86: Implement
pcibios_alloc_irq() and pcibios_free_irq()") to fix regressions it
introduced.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
CC: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 0d24e7c101454057f432dd976ea7e3d537e0a38c..8826ff593ebcfe5eed793fe5f06157d6757fff77 100644 (file)
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -215,7 +215,7 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
        int polarity;
        int ret;
 
-       if (pci_has_managed_irq(dev))
+       if (dev->irq_managed && dev->irq > 0)
                return 0;
 
        switch (intel_mid_identify_cpu()) {
@@ -256,7 +256,7 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
 
 static void intel_mid_pci_irq_disable(struct pci_dev *dev)
 {
-       if (pci_has_managed_irq(dev)) {
+       if (dev->irq_managed && dev->irq > 0) {
                mp_unmap_irq(dev->irq);
                dev->irq_managed = 0;
                /*

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 32e70343e6fdd0e58ab80644284dd01000dccd82..72108f0b66b10f8a2bd099d8e47aac7b05150b11 100644 (file)
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1202,7 +1202,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
                        struct pci_dev *temp_dev;
                        int irq;
 
-                       if (pci_has_managed_irq(dev))
+                       if (dev->irq_managed && dev->irq > 0)
                                return 0;
 
                        irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
@@ -1230,7 +1230,8 @@ static int pirq_enable_irq(struct pci_dev *dev)
                        }
                        dev = temp_dev;
                        if (irq >= 0) {
-                               pci_set_managed_irq(dev, irq);
+                               dev->irq_managed = 1;
+                               dev->irq = irq;
                                dev_info(&dev->dev, "PCI->APIC IRQ transform: "
                                         "INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
                                return 0;
@@ -1258,8 +1259,9 @@ static int pirq_enable_irq(struct pci_dev *dev)
 
 static void pirq_disable_irq(struct pci_dev *dev)
 {
-       if (io_apic_assign_pci_irqs && pci_has_managed_irq(dev)) {
+       if (io_apic_assign_pci_irqs && dev->irq_managed && dev->irq) {
                mp_unmap_irq(dev->irq);
-               pci_reset_managed_irq(dev);
+               dev->irq = 0;
+               dev->irq_managed = 0;
        }
 }

diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index c9336751e5e3708f96e9f972ab05fc5454970adb..172b74df0fa7dfe2aa72a48dc9fd24c709c5786c 100644 (file)
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -409,7 +409,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
                return 0;
        }
 
-       if (pci_has_managed_irq(dev))
+       if (dev->irq_managed && dev->irq > 0)
                return 0;
 
        entry = acpi_pci_irq_lookup(dev, pin);
@@ -454,7 +454,8 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
                kfree(entry);
                return rc;
        }
-       pci_set_managed_irq(dev, rc);
+       dev->irq = rc;
+       dev->irq_managed = 1;
 
        if (link)
                snprintf(link_desc, sizeof(link_desc), " -> Link[%s]", link);
@@ -477,7 +478,7 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
        u8 pin;
 
        pin = dev->pin;
-       if (!pin || !pci_has_managed_irq(dev))
+       if (!pin || !dev->irq_managed || dev->irq <= 0)
                return;
 
        entry = acpi_pci_irq_lookup(dev, pin);
@@ -499,6 +500,7 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
        dev_dbg(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
        if (gsi >= 0) {
                acpi_unregister_gsi(gsi);
-               pci_reset_managed_irq(dev);
+               dev->irq_managed = 0;
+               dev->irq = 0;
        }
 }

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 4e554bfff1295b59e80648bf8a018aa7284bf7b9..e89c7ee7e8036b55abd63a687fbd91e858006554 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -989,23 +989,6 @@ static inline int pci_is_managed(struct pci_dev *pdev)
        return pdev->is_managed;
 }
 
-static inline void pci_set_managed_irq(struct pci_dev *pdev, unsigned int irq)
-{
-       pdev->irq = irq;
-       pdev->irq_managed = 1;
-}
-
-static inline void pci_reset_managed_irq(struct pci_dev *pdev)
-{
-       pdev->irq = 0;
-       pdev->irq_managed = 0;
-}
-
-static inline bool pci_has_managed_irq(struct pci_dev *pdev)
-{
-       return pdev->irq_managed && pdev->irq > 0;
-}
-
 void pci_disable_device(struct pci_dev *dev);
 
 extern unsigned int pcibios_max_latency;