On Thu, 2013-07-11 at 17:43 +0800, Yijing Wang wrote:
[...]
> diff --git a/drivers/pci/hotplug/pciehp_core.c
> b/drivers/pci/hotplug/pciehp_core.c
> index 1542735..f2eb214 100644
> --- a/drivers/pci/hotplug/pciehp_core.c
> +++ b/drivers/pci/hotplug/pciehp_core.c
[...]
> @@ -315,6 +342,24 @@ static int pciehp_resume (struct pcie_device *dev)
> if (status) {
> if (list_empty(&pbus->devices))
> pciehp_enable_slot(slot);
> +
> + if (device_serial_number_changed(pbus)) {
> + /*
> + * first power off slot, avoid the old driver
> + * .remove() method touch the new hardware
> + */
> + if (POWER_CTRL(ctrl)) {
> + retval = pciehp_power_off_slot(slot);
> + if (retval) {
> + ctrl_err(ctrl,
> + "Issue of Slot Disable command
> failed\n");
> + return 0;
> + }
> + msleep(1000);
> + pciehp_unconfigure_device(slot);
> + pciehp_enable_slot(slot);
> + }
> + }
> } else if (!list_empty(&pbus->devices))
> pciehp_disable_slot(slot);
>
It was surprisingly hard to see why the patch wouldn't apply to v3.10.
It turns out the very last line of context is a line consisting of just
a single tab. And in v3.10 it is an empty line.
Is that lone tab perhaps an editing mistake on your side?
Paul Bolle
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