| Message ID | 1392806122-23318-1-git-send-email-tomasz.nowicki@linaro.org |
|---|---|
| State | New |
| Headers | show |
On 19.02.2014 17:11, Rafael J. Wysocki wrote: > On Wednesday, February 19, 2014 11:35:22 AM Tomasz Nowicki wrote: >> This commit moves ISA-specific code to separate function and makes that >> function depend on CONFIG_{E}ISA so that we do not have to maintain >> acpi_isa_irq_to_gsi() function for architectures which do not support ISA. >> >> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> >> --- >> drivers/acpi/pci_irq.c | 35 +++++++++++++++++++++++++---------- >> 1 file changed, 25 insertions(+), 10 deletions(-) >> >> diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c >> index 361b40c..0a553a0 100644 >> --- a/drivers/acpi/pci_irq.c >> +++ b/drivers/acpi/pci_irq.c >> @@ -370,6 +370,30 @@ static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin) >> return NULL; >> } >> >> +#if IS_ENABLED(CONFIG_ISA) || IS_ENABLED(CONFIG_EISA) >> +static int acpi_isa_register_gsi(struct pci_dev *dev) >> +{ >> + u32 dev_gsi; >> + >> + /* Interrupt Line values above 0xF are forbidden */ >> + if (dev->irq > 0 && (dev->irq <= 0xF) && >> + (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { >> + dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n", >> + pin_name(dev->pin), dev->irq); >> + acpi_register_gsi(&dev->dev, dev_gsi, >> + ACPI_LEVEL_SENSITIVE, >> + ACPI_ACTIVE_LOW); >> + return 0; >> + } >> + return -EINVAL; >> +} >> +#else >> +static inline int acpi_isa_register_gsi(struct pci_dev *dev) >> +{ >> + return -ENODEV; >> +} >> +#endif >> + >> int acpi_pci_irq_enable(struct pci_dev *dev) >> { >> struct acpi_prt_entry *entry; >> @@ -416,16 +440,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev) >> * driver reported one, then use it. Exit in any case. >> */ >> if (gsi < 0) { >> - u32 dev_gsi; >> - /* Interrupt Line values above 0xF are forbidden */ >> - if (dev->irq > 0 && (dev->irq <= 0xF) && >> - (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { >> - dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n", >> - pin_name(pin), dev->irq); >> - acpi_register_gsi(&dev->dev, dev_gsi, >> - ACPI_LEVEL_SENSITIVE, >> - ACPI_ACTIVE_LOW); >> - } else { >> + if (acpi_isa_register_gsi(dev)) { > > The curly brackets are not necessary here and you can even move the below into > acpi_isa_register_gsi(). Right, the curly brackets can be removed. My intention was to print warning when ISA is not supported too, and do not put dev_warn() into both version of acpi_isa_register_gsi(). So I would leave code below as it is. > >> dev_warn(&dev->dev, "PCI INT %c: no GSI\n", >> pin_name(pin)); >> } >> > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 361b40c..0a553a0 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -370,6 +370,30 @@ static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin) return NULL; } +#if IS_ENABLED(CONFIG_ISA) || IS_ENABLED(CONFIG_EISA) +static int acpi_isa_register_gsi(struct pci_dev *dev) +{ + u32 dev_gsi; + + /* Interrupt Line values above 0xF are forbidden */ + if (dev->irq > 0 && (dev->irq <= 0xF) && + (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { + dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n", + pin_name(dev->pin), dev->irq); + acpi_register_gsi(&dev->dev, dev_gsi, + ACPI_LEVEL_SENSITIVE, + ACPI_ACTIVE_LOW); + return 0; + } + return -EINVAL; +} +#else +static inline int acpi_isa_register_gsi(struct pci_dev *dev) +{ + return -ENODEV; +} +#endif + int acpi_pci_irq_enable(struct pci_dev *dev) { struct acpi_prt_entry *entry; @@ -416,16 +440,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev) * driver reported one, then use it. Exit in any case. */ if (gsi < 0) { - u32 dev_gsi; - /* Interrupt Line values above 0xF are forbidden */ - if (dev->irq > 0 && (dev->irq <= 0xF) && - (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { - dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n", - pin_name(pin), dev->irq); - acpi_register_gsi(&dev->dev, dev_gsi, - ACPI_LEVEL_SENSITIVE, - ACPI_ACTIVE_LOW); - } else { + if (acpi_isa_register_gsi(dev)) { dev_warn(&dev->dev, "PCI INT %c: no GSI\n", pin_name(pin)); }
This commit moves ISA-specific code to separate function and makes that function depend on CONFIG_{E}ISA so that we do not have to maintain acpi_isa_irq_to_gsi() function for architectures which do not support ISA. Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> --- drivers/acpi/pci_irq.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-)