Re: [PATCH v4 6/7] PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Nov 28, 2016 at 10:16:07PM -0600, Bjorn Helgaas wrote:
>Remove the assumption that IORESOURCE_ROM_ENABLE == PCI_ROM_ADDRESS_ENABLE.
>PCI_ROM_ADDRESS_ENABLE is the ROM enable bit defined by the PCI spec, so if
>we're reading or writing a BAR register value, that's what we should use.
>IORESOURCE_ROM_ENABLE is a corresponding bit in struct resource flags.
>
>Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

Reviewed-by: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>

>---
> drivers/pci/probe.c |    3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
>index ab00267..cf7670e 100644
>--- a/drivers/pci/probe.c
>+++ b/drivers/pci/probe.c
>@@ -227,7 +227,8 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
> 			mask64 = (u32)PCI_BASE_ADDRESS_MEM_MASK;
> 		}
> 	} else {
>-		res->flags |= (l & IORESOURCE_ROM_ENABLE);
>+		if (l & PCI_ROM_ADDRESS_ENABLE)
>+			res->flags |= IORESOURCE_ROM_ENABLE;
> 		l64 = l & PCI_ROM_ADDRESS_MASK;
> 		sz64 = sz & PCI_ROM_ADDRESS_MASK;
> 		mask64 = (u32)PCI_ROM_ADDRESS_MASK;
>
>--
>To unsubscribe from this list: send the line "unsubscribe linux-pci" in
>the body of a message to majordomo@xxxxxxxxxxxxxxx
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux