Re: [PATCH v3 1/2] Bluetooth: btusb: Indicate Microsoft vendor extension for Intel 9460/9560 and 9160/9260

On Thu, Mar 26, 2020 at 1:16 AM Joe Perches [off-list ref] wrote:

On Thu, 2020-03-26 at 00:59 -0700, Miao-chen Chou wrote:

quoted

This adds a bit mask of driver_info for Microsoft vendor extension and
indicates the support for Intel 9460/9560 and 9160/9260. See
https://docs.microsoft.com/en-us/windows-hardware/drivers/bluetooth/
microsoft-defined-bluetooth-hci-commands-and-events for more information
about the extension. This was verified with Intel ThunderPeak BT controller
where msft_vnd_ext_opcode is 0xFC1E.

[]

quoted

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h

[]

quoted

@@ -414,6 +414,8 @@ struct hci_dev {
      void                    *smp_data;
      void                    *smp_bredr_data;

+     void                    *msft_ext;

Why should this be a void * and not a msft_vnd_ext * ?

The intention is to hide msft_vnd_ext from the driver.