On Thu, Feb 03, 2022 at 05:12:33AM -0800, Jorgen Hansen wrote:
> Tell the device the page size used by the OS.
>
> Reviewed-by: Vishnu Dasa <vdasa@xxxxxxxxxx>
> Signed-off-by: Jorgen Hansen <jhansen@xxxxxxxxxx>
> ---
> drivers/misc/vmw_vmci/vmci_guest.c | 9 +++++++++
> include/linux/vmw_vmci_defs.h | 1 +
> 2 files changed, 10 insertions(+)
>
> diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
> index 5a99d8e27873..808680dc0820 100644
> --- a/drivers/misc/vmw_vmci/vmci_guest.c
> +++ b/drivers/misc/vmw_vmci/vmci_guest.c
> @@ -581,6 +581,15 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
> /* Let the host know which capabilities we intend to use. */
> vmci_write_reg(vmci_dev, caps_in_use, VMCI_CAPS_ADDR);
>
> + if (caps_in_use & VMCI_CAPS_DMA_DATAGRAM) {
> + uint32_t page_shift;
> +
> + /* Let the device know the size for pages passed down. */
> + vmci_write_reg(vmci_dev, PAGE_SHIFT, VMCI_GUEST_PAGE_SHIFT);
> + page_shift = vmci_read_reg(vmci_dev, VMCI_GUEST_PAGE_SHIFT);
> + dev_info(&pdev->dev, "Using page shift %d\n", page_shift);
Please do not print out debugging stuff like this to the kernel log.
When drivers are working properly, they are quiet.
thanks,
greg k-h
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