Re: [PATCH] pci/pci-sysfs: Set pci interface in uppercase

From: Greg KH
Date: Wed Aug 27 2014 - 16:23:08 EST


On Wed, Aug 27, 2014 at 02:57:57PM +0200, Ricardo Ribalda Delgado wrote:
> There is a missmatch between the way file2alias generates the modalias
> and the way the pci driver generates it.
>
> Some implementations of modprobe will fail to load the driver for a pci
> device automatically when the pci interface is defined on the driver. As
> one will be in uppercase and the other in lowercase.
>
> Fortunatelly not many drivers define this.
>
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
> ---
> drivers/pci/pci-sysfs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
> index 9ff0a90..76ef791 100644
> --- a/drivers/pci/pci-sysfs.c
> +++ b/drivers/pci/pci-sysfs.c
> @@ -177,7 +177,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
> {
> struct pci_dev *pci_dev = to_pci_dev(dev);
>
> - return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x\n",
> + return sprintf(buf, "pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02X\n",
> pci_dev->vendor, pci_dev->device,
> pci_dev->subsystem_vendor, pci_dev->subsystem_device,
> (u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),

As said in the other thread about this issue, no, this code has been
here for over 9 years just fine. Please fix your userspace code that is
trying to compare hex values as a string and not a numeric value, that
is the stuff that is wrong, not the kernel.

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/